/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-23.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:58:18,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:58:18,967 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:58:18,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:58:18,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:58:19,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:58:19,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:58:19,004 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:58:19,005 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:58:19,008 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:58:19,009 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:58:19,009 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:58:19,009 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:58:19,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:58:19,010 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:58:19,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:58:19,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:58:19,011 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:58:19,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:58:19,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:58:19,013 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:58:19,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:58:19,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:58:19,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:58:19,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:58:19,014 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:58:19,014 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:58:19,014 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:58:19,015 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:58:19,015 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:58:19,016 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:58:19,016 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:58:19,016 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:58:19,016 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:58:19,016 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:58:19,017 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:58:19,017 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:58:19,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:58:19,017 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:58:19,017 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:58:19,017 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:58:19,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:58:19,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:58:19,020 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:58:19,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:58:19,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:58:19,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:58:19,352 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:58:19,352 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:58:19,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-23.i [2023-12-16 03:58:20,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:58:20,829 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:58:20,830 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-23.i [2023-12-16 03:58:20,840 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e957758/526b2239feca4483aa00737997ca51d6/FLAGbaeef0986 [2023-12-16 03:58:21,164 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e957758/526b2239feca4483aa00737997ca51d6 [2023-12-16 03:58:21,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:58:21,167 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:58:21,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:58:21,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:58:21,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:58:21,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be00d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21, skipping insertion in model container [2023-12-16 03:58:21,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:58:21,342 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-23.i[916,929] [2023-12-16 03:58:21,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:58:21,498 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:58:21,511 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-23.i[916,929] [2023-12-16 03:58:21,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:58:21,625 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:58:21,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21 WrapperNode [2023-12-16 03:58:21,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:58:21,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:58:21,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:58:21,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:58:21,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,717 INFO L138 Inliner]: procedures = 26, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 429 [2023-12-16 03:58:21,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:58:21,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:58:21,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:58:21,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:58:21,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,751 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,788 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 03:58:21,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:58:21,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:58:21,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:58:21,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:58:21,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (1/1) ... [2023-12-16 03:58:21,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:58:21,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:21,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 03:58:21,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 03:58:21,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:58:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:58:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:58:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:58:21,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:58:21,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:58:22,051 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:58:22,055 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:58:22,739 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:58:22,806 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:58:22,807 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:58:22,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:58:22 BoogieIcfgContainer [2023-12-16 03:58:22,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:58:22,809 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:58:22,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:58:22,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:58:22,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:58:21" (1/3) ... [2023-12-16 03:58:22,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4215613d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:58:22, skipping insertion in model container [2023-12-16 03:58:22,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:21" (2/3) ... [2023-12-16 03:58:22,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4215613d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:58:22, skipping insertion in model container [2023-12-16 03:58:22,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:58:22" (3/3) ... [2023-12-16 03:58:22,814 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-23.i [2023-12-16 03:58:22,828 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:58:22,829 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:58:22,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:58:22,875 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;@41ed4c0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:58:22,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:58:22,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 174 states, 114 states have (on average 1.5) internal successors, (171), 115 states have internal predecessors, (171), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-16 03:58:22,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-16 03:58:22,906 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:22,907 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:22,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:22,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:22,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2019395284, now seen corresponding path program 1 times [2023-12-16 03:58:22,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:22,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520854320] [2023-12-16 03:58:22,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:22,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:23,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:23,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520854320] [2023-12-16 03:58:23,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 03:58:23,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169433506] [2023-12-16 03:58:23,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:23,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:23,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:23,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:58:23,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:58:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:23,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 03:58:23,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 6272 trivial. 0 not checked. [2023-12-16 03:58:23,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:58:23,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169433506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:58:23,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:58:23,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:58:23,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598057508] [2023-12-16 03:58:23,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:58:23,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:58:23,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:58:23,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:58:23,735 INFO L87 Difference]: Start difference. First operand has 174 states, 114 states have (on average 1.5) internal successors, (171), 115 states have internal predecessors, (171), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 2 states have call successors, (57) [2023-12-16 03:58:23,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:23,784 INFO L93 Difference]: Finished difference Result 345 states and 625 transitions. [2023-12-16 03:58:23,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:58:23,791 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 2 states have call successors, (57) Word has length 367 [2023-12-16 03:58:23,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:23,798 INFO L225 Difference]: With dead ends: 345 [2023-12-16 03:58:23,799 INFO L226 Difference]: Without dead ends: 172 [2023-12-16 03:58:23,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:58:23,805 INFO L413 NwaCegarLoop]: 277 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, 277 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 [2023-12-16 03:58:23,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:58:23,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-16 03:58:23,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2023-12-16 03:58:23,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 113 states have (on average 1.4690265486725664) internal successors, (166), 113 states have internal predecessors, (166), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-16 03:58:23,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 280 transitions. [2023-12-16 03:58:23,856 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 280 transitions. Word has length 367 [2023-12-16 03:58:23,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:23,857 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 280 transitions. [2023-12-16 03:58:23,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 2 states have call successors, (57) [2023-12-16 03:58:23,857 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 280 transitions. [2023-12-16 03:58:23,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-16 03:58:23,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:23,864 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:23,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:24,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 03:58:24,073 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:24,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:24,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1200317234, now seen corresponding path program 1 times [2023-12-16 03:58:24,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:24,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299861046] [2023-12-16 03:58:24,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:24,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:24,162 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:24,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945582593] [2023-12-16 03:58:24,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:24,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:24,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:24,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:58:24,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 03:58:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:24,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 03:58:24,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:59:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2023-12-16 03:59:04,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:59:04,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:59:04,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299861046] [2023-12-16 03:59:04,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:59:04,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945582593] [2023-12-16 03:59:04,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945582593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:59:04,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:59:04,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:59:04,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044029053] [2023-12-16 03:59:04,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:59:04,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:59:04,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:59:04,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:59:04,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:59:04,269 INFO L87 Difference]: Start difference. First operand 172 states and 280 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-12-16 03:59:04,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:59:04,368 INFO L93 Difference]: Finished difference Result 347 states and 564 transitions. [2023-12-16 03:59:04,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 03:59:04,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 367 [2023-12-16 03:59:04,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:59:04,372 INFO L225 Difference]: With dead ends: 347 [2023-12-16 03:59:04,372 INFO L226 Difference]: Without dead ends: 176 [2023-12-16 03:59:04,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:59:04,375 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 3 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:59:04,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 819 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:59:04,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-12-16 03:59:04,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2023-12-16 03:59:04,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 115 states have (on average 1.4608695652173913) internal successors, (168), 115 states have internal predecessors, (168), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-16 03:59:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 282 transitions. [2023-12-16 03:59:04,400 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 282 transitions. Word has length 367 [2023-12-16 03:59:04,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:59:04,402 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 282 transitions. [2023-12-16 03:59:04,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-12-16 03:59:04,402 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 282 transitions. [2023-12-16 03:59:04,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-16 03:59:04,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:59:04,407 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:04,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 03:59:04,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 03:59:04,619 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:59:04,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:59:04,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1200257652, now seen corresponding path program 1 times [2023-12-16 03:59:04,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:59:04,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561835008] [2023-12-16 03:59:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:04,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:59:04,730 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:59:04,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727002642] [2023-12-16 03:59:04,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:04,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:04,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:59:04,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:59:04,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 03:59:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:59:05,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 03:59:05,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:59:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 848 proven. 0 refuted. 0 times theorem prover too weak. 5536 trivial. 0 not checked. [2023-12-16 03:59:05,477 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:59:05,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:59:05,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561835008] [2023-12-16 03:59:05,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:59:05,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727002642] [2023-12-16 03:59:05,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727002642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:59:05,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:59:05,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:59:05,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34653620] [2023-12-16 03:59:05,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:59:05,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:59:05,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:59:05,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:59:05,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:59:05,483 INFO L87 Difference]: Start difference. First operand 174 states and 282 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-12-16 03:59:05,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:59:05,830 INFO L93 Difference]: Finished difference Result 346 states and 561 transitions. [2023-12-16 03:59:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 03:59:05,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 367 [2023-12-16 03:59:05,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:59:05,836 INFO L225 Difference]: With dead ends: 346 [2023-12-16 03:59:05,837 INFO L226 Difference]: Without dead ends: 173 [2023-12-16 03:59:05,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:59:05,839 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 112 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 03:59:05,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 341 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 03:59:05,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-16 03:59:05,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-16 03:59:05,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 114 states have (on average 1.4473684210526316) internal successors, (165), 114 states have internal predecessors, (165), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-16 03:59:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 279 transitions. [2023-12-16 03:59:05,857 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 279 transitions. Word has length 367 [2023-12-16 03:59:05,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:59:05,858 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 279 transitions. [2023-12-16 03:59:05,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2023-12-16 03:59:05,859 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 279 transitions. [2023-12-16 03:59:05,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-16 03:59:05,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:59:05,864 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:05,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 03:59:06,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:06,072 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:59:06,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:59:06,073 INFO L85 PathProgramCache]: Analyzing trace with hash -2032384884, now seen corresponding path program 1 times [2023-12-16 03:59:06,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:59:06,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674575170] [2023-12-16 03:59:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:06,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:59:06,120 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:59:06,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828885503] [2023-12-16 03:59:06,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:06,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:06,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:59:06,122 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:59:06,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 03:59:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:59:06,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 03:59:06,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:59:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2023-12-16 03:59:06,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:59:06,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:59:06,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674575170] [2023-12-16 03:59:06,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:59:06,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828885503] [2023-12-16 03:59:06,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828885503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:59:06,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:59:06,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:59:06,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284261739] [2023-12-16 03:59:06,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:59:06,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 03:59:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:59:06,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 03:59:06,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:59:06,539 INFO L87 Difference]: Start difference. First operand 173 states and 279 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, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-12-16 03:59:06,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:59:06,648 INFO L93 Difference]: Finished difference Result 484 states and 777 transitions. [2023-12-16 03:59:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 03:59:06,649 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, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 367 [2023-12-16 03:59:06,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:59:06,653 INFO L225 Difference]: With dead ends: 484 [2023-12-16 03:59:06,653 INFO L226 Difference]: Without dead ends: 312 [2023-12-16 03:59:06,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:59:06,658 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 200 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:59:06,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 505 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:59:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-16 03:59:06,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 199. [2023-12-16 03:59:06,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 140 states have (on average 1.4428571428571428) internal successors, (202), 140 states have internal predecessors, (202), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-16 03:59:06,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 316 transitions. [2023-12-16 03:59:06,709 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 316 transitions. Word has length 367 [2023-12-16 03:59:06,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:59:06,712 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 316 transitions. [2023-12-16 03:59:06,712 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, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-12-16 03:59:06,713 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 316 transitions. [2023-12-16 03:59:06,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-16 03:59:06,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:59:06,718 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:06,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 03:59:06,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:06,929 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:59:06,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:59:06,930 INFO L85 PathProgramCache]: Analyzing trace with hash 64340876, now seen corresponding path program 1 times [2023-12-16 03:59:06,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:59:06,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426501458] [2023-12-16 03:59:06,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:06,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:59:06,973 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:59:06,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926391357] [2023-12-16 03:59:06,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:06,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:06,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:59:06,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:59:06,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 03:59:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:59:07,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 03:59:07,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:59:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2023-12-16 03:59:07,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:59:07,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:59:07,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426501458] [2023-12-16 03:59:07,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:59:07,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926391357] [2023-12-16 03:59:07,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926391357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:59:07,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:59:07,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:59:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566429574] [2023-12-16 03:59:07,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:59:07,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 03:59:07,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:59:07,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 03:59:07,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:59:07,244 INFO L87 Difference]: Start difference. First operand 199 states and 316 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, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-12-16 03:59:07,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:59:07,268 INFO L93 Difference]: Finished difference Result 397 states and 631 transitions. [2023-12-16 03:59:07,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 03:59:07,269 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, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 367 [2023-12-16 03:59:07,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:59:07,271 INFO L225 Difference]: With dead ends: 397 [2023-12-16 03:59:07,271 INFO L226 Difference]: Without dead ends: 199 [2023-12-16 03:59:07,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:59:07,272 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 82 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:59:07,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 460 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:59:07,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-12-16 03:59:07,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2023-12-16 03:59:07,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 140 states have (on average 1.4357142857142857) internal successors, (201), 140 states have internal predecessors, (201), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-16 03:59:07,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 315 transitions. [2023-12-16 03:59:07,287 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 315 transitions. Word has length 367 [2023-12-16 03:59:07,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:59:07,288 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 315 transitions. [2023-12-16 03:59:07,288 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, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-12-16 03:59:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 315 transitions. [2023-12-16 03:59:07,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-16 03:59:07,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:59:07,293 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:07,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 03:59:07,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:07,501 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:59:07,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:59:07,502 INFO L85 PathProgramCache]: Analyzing trace with hash 698800000, now seen corresponding path program 1 times [2023-12-16 03:59:07,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:59:07,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668588609] [2023-12-16 03:59:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:07,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:59:07,576 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:59:07,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2114953089] [2023-12-16 03:59:07,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:07,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:07,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:59:07,578 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:59:07,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 03:59:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:59:07,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 03:59:07,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:59:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 1086 proven. 153 refuted. 0 times theorem prover too weak. 5145 trivial. 0 not checked. [2023-12-16 03:59:08,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:59:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 15 proven. 153 refuted. 0 times theorem prover too weak. 6216 trivial. 0 not checked. [2023-12-16 03:59:09,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:59:09,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668588609] [2023-12-16 03:59:09,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:59:09,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114953089] [2023-12-16 03:59:09,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114953089] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:59:09,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:59:09,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-16 03:59:09,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999605755] [2023-12-16 03:59:09,064 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:59:09,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 03:59:09,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:59:09,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 03:59:09,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-16 03:59:09,066 INFO L87 Difference]: Start difference. First operand 199 states and 315 transitions. Second operand has 14 states, 14 states have (on average 10.571428571428571) internal successors, (148), 14 states have internal predecessors, (148), 4 states have call successors, (114), 3 states have call predecessors, (114), 5 states have return successors, (114), 4 states have call predecessors, (114), 4 states have call successors, (114) [2023-12-16 03:59:10,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:59:10,641 INFO L93 Difference]: Finished difference Result 762 states and 1201 transitions. [2023-12-16 03:59:10,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 03:59:10,642 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.571428571428571) internal successors, (148), 14 states have internal predecessors, (148), 4 states have call successors, (114), 3 states have call predecessors, (114), 5 states have return successors, (114), 4 states have call predecessors, (114), 4 states have call successors, (114) Word has length 368 [2023-12-16 03:59:10,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:59:10,645 INFO L225 Difference]: With dead ends: 762 [2023-12-16 03:59:10,645 INFO L226 Difference]: Without dead ends: 564 [2023-12-16 03:59:10,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 724 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2023-12-16 03:59:10,647 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1058 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 03:59:10,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 1543 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1241 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 03:59:10,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-12-16 03:59:10,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 398. [2023-12-16 03:59:10,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 280 states have (on average 1.4285714285714286) internal successors, (400), 280 states have internal predecessors, (400), 114 states have call successors, (114), 3 states have call predecessors, (114), 3 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-16 03:59:10,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 628 transitions. [2023-12-16 03:59:10,714 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 628 transitions. Word has length 368 [2023-12-16 03:59:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:59:10,716 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 628 transitions. [2023-12-16 03:59:10,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.571428571428571) internal successors, (148), 14 states have internal predecessors, (148), 4 states have call successors, (114), 3 states have call predecessors, (114), 5 states have return successors, (114), 4 states have call predecessors, (114), 4 states have call successors, (114) [2023-12-16 03:59:10,716 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 628 transitions. [2023-12-16 03:59:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-16 03:59:10,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:59:10,719 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:10,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 03:59:10,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:10,928 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:59:10,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:59:10,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1545183298, now seen corresponding path program 1 times [2023-12-16 03:59:10,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:59:10,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479423329] [2023-12-16 03:59:10,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:10,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:59:10,978 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:59:10,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1333848016] [2023-12-16 03:59:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:10,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:10,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:59:10,980 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:59:11,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 03:59:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:59:11,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-16 03:59:11,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:59:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 4015 proven. 186 refuted. 0 times theorem prover too weak. 2183 trivial. 0 not checked. [2023-12-16 03:59:12,070 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:59:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 144 proven. 189 refuted. 0 times theorem prover too weak. 6051 trivial. 0 not checked. [2023-12-16 03:59:12,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:59:12,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479423329] [2023-12-16 03:59:12,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:59:12,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333848016] [2023-12-16 03:59:12,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333848016] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:59:12,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:59:12,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-12-16 03:59:12,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972189941] [2023-12-16 03:59:12,714 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:59:12,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 03:59:12,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:59:12,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 03:59:12,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-12-16 03:59:12,716 INFO L87 Difference]: Start difference. First operand 398 states and 628 transitions. Second operand has 18 states, 17 states have (on average 8.117647058823529) internal successors, (138), 18 states have internal predecessors, (138), 7 states have call successors, (94), 4 states have call predecessors, (94), 7 states have return successors, (95), 5 states have call predecessors, (95), 7 states have call successors, (95) [2023-12-16 03:59:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:59:13,541 INFO L93 Difference]: Finished difference Result 827 states and 1281 transitions. [2023-12-16 03:59:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 03:59:13,543 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 8.117647058823529) internal successors, (138), 18 states have internal predecessors, (138), 7 states have call successors, (94), 4 states have call predecessors, (94), 7 states have return successors, (95), 5 states have call predecessors, (95), 7 states have call successors, (95) Word has length 368 [2023-12-16 03:59:13,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:59:13,551 INFO L225 Difference]: With dead ends: 827 [2023-12-16 03:59:13,551 INFO L226 Difference]: Without dead ends: 430 [2023-12-16 03:59:13,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 718 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=225, Invalid=531, Unknown=0, NotChecked=0, Total=756 [2023-12-16 03:59:13,554 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 366 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 03:59:13,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 781 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 03:59:13,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2023-12-16 03:59:13,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 422. [2023-12-16 03:59:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 298 states have (on average 1.395973154362416) internal successors, (416), 298 states have internal predecessors, (416), 114 states have call successors, (114), 9 states have call predecessors, (114), 9 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-16 03:59:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 644 transitions. [2023-12-16 03:59:13,602 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 644 transitions. Word has length 368 [2023-12-16 03:59:13,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:59:13,603 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 644 transitions. [2023-12-16 03:59:13,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 8.117647058823529) internal successors, (138), 18 states have internal predecessors, (138), 7 states have call successors, (94), 4 states have call predecessors, (94), 7 states have return successors, (95), 5 states have call predecessors, (95), 7 states have call successors, (95) [2023-12-16 03:59:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 644 transitions. [2023-12-16 03:59:13,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-16 03:59:13,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:59:13,606 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:13,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 03:59:13,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:13,820 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:59:13,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:59:13,821 INFO L85 PathProgramCache]: Analyzing trace with hash -885651776, now seen corresponding path program 1 times [2023-12-16 03:59:13,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:59:13,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377750250] [2023-12-16 03:59:13,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:13,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:59:13,870 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:59:13,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [742168487] [2023-12-16 03:59:13,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:13,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:13,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:59:13,872 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:59:13,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 03:59:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:59:14,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 03:59:14,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:59:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2023-12-16 03:59:14,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:59:14,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:59:14,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377750250] [2023-12-16 03:59:14,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:59:14,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742168487] [2023-12-16 03:59:14,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742168487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:59:14,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:59:14,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 03:59:14,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424802555] [2023-12-16 03:59:14,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:59:14,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:59:14,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:59:14,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:59:14,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:59:14,666 INFO L87 Difference]: Start difference. First operand 422 states and 644 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-12-16 03:59:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:59:15,057 INFO L93 Difference]: Finished difference Result 846 states and 1290 transitions. [2023-12-16 03:59:15,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 03:59:15,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 368 [2023-12-16 03:59:15,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:59:15,071 INFO L225 Difference]: With dead ends: 846 [2023-12-16 03:59:15,071 INFO L226 Difference]: Without dead ends: 425 [2023-12-16 03:59:15,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:59:15,073 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 165 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 03:59:15,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 616 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 03:59:15,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-12-16 03:59:15,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 422. [2023-12-16 03:59:15,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 298 states have (on average 1.3926174496644295) internal successors, (415), 298 states have internal predecessors, (415), 114 states have call successors, (114), 9 states have call predecessors, (114), 9 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-16 03:59:15,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 643 transitions. [2023-12-16 03:59:15,140 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 643 transitions. Word has length 368 [2023-12-16 03:59:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:59:15,140 INFO L495 AbstractCegarLoop]: Abstraction has 422 states and 643 transitions. [2023-12-16 03:59:15,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2023-12-16 03:59:15,141 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 643 transitions. [2023-12-16 03:59:15,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2023-12-16 03:59:15,143 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:59:15,143 INFO L195 NwaCegarLoop]: trace histogram [57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:15,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 Received shutdown request... [2023-12-16 03:59:15,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-16 03:59:15,352 WARN L619 AbstractCegarLoop]: Verification canceled: while executing NwaCegarLoop. [2023-12-16 03:59:15,354 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:59:15,357 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:15,359 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:59:15,360 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:59:15,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:59:15 BoogieIcfgContainer [2023-12-16 03:59:15,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:59:15,365 INFO L158 Benchmark]: Toolchain (without parser) took 54197.83ms. Allocated memory was 276.8MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 225.8MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 03:59:15,365 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 195.0MB. Free memory was 142.4MB in the beginning and 142.3MB in the end (delta: 161.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:59:15,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.48ms. Allocated memory is still 276.8MB. Free memory was 225.8MB in the beginning and 201.6MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 03:59:15,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.85ms. Allocated memory is still 276.8MB. Free memory was 201.6MB in the beginning and 193.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 03:59:15,366 INFO L158 Benchmark]: Boogie Preprocessor took 132.95ms. Allocated memory is still 276.8MB. Free memory was 193.8MB in the beginning and 181.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 03:59:15,366 INFO L158 Benchmark]: RCFGBuilder took 955.07ms. Allocated memory is still 276.8MB. Free memory was 181.7MB in the beginning and 241.0MB in the end (delta: -59.3MB). Peak memory consumption was 61.3MB. Max. memory is 8.0GB. [2023-12-16 03:59:15,366 INFO L158 Benchmark]: TraceAbstraction took 52555.22ms. Allocated memory was 276.8MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 240.5MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 03:59:15,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 195.0MB. Free memory was 142.4MB in the beginning and 142.3MB in the end (delta: 161.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 458.48ms. Allocated memory is still 276.8MB. Free memory was 225.8MB in the beginning and 201.6MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 90.85ms. Allocated memory is still 276.8MB. Free memory was 201.6MB in the beginning and 193.8MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 132.95ms. Allocated memory is still 276.8MB. Free memory was 193.8MB in the beginning and 181.7MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 955.07ms. Allocated memory is still 276.8MB. Free memory was 181.7MB in the beginning and 241.0MB in the end (delta: -59.3MB). Peak memory consumption was 61.3MB. Max. memory is 8.0GB. * TraceAbstraction took 52555.22ms. Allocated memory was 276.8MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 240.5MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 2.1GB. 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 NwaCegarLoop. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 174 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.5s, OverallIterations: 8, TraceHistogramMax: 57, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2061 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1986 mSDsluCounter, 5342 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3338 mSDsCounter, 288 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2413 IncrementalHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 288 mSolverCounterUnsat, 2004 mSDtfsCounter, 2413 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3690 GetRequests, 3631 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=422occurred in iteration=7, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 292 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 43.9s InterpolantComputationTime, 3306 NumberOfCodeBlocks, 3306 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3665 ConstructedInterpolants, 0 QuantifiedInterpolants, 10677 SizeOfPredicates, 15 NumberOfNonLiveVariables, 6774 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 63159/63840 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