/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-33.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 19:41:23,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 19:41:24,047 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 19:41:24,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 19:41:24,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 19:41:24,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 19:41:24,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 19:41:24,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 19:41:24,087 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 19:41:24,090 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 19:41:24,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 19:41:24,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 19:41:24,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 19:41:24,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 19:41:24,092 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 19:41:24,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 19:41:24,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 19:41:24,092 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 19:41:24,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 19:41:24,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 19:41:24,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 19:41:24,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 19:41:24,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 19:41:24,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 19:41:24,093 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 19:41:24,093 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 19:41:24,093 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 19:41:24,094 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 19:41:24,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 19:41:24,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 19:41:24,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 19:41:24,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 19:41:24,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:41:24,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 19:41:24,095 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 19:41:24,095 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 19:41:24,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 19:41:24,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 19:41:24,096 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 19:41:24,096 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 19:41:24,096 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 19:41:24,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 19:41:24,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 19:41:24,097 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 19:41:24,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 19:41:24,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 19:41:24,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 19:41:24,298 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 19:41:24,298 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 19:41:24,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-33.i [2023-12-15 19:41:25,253 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 19:41:25,403 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 19:41:25,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-33.i [2023-12-15 19:41:25,410 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7970878ab/3e2e6a3e93974772a392dd225187fc8f/FLAG8e6be8e6a [2023-12-15 19:41:25,424 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7970878ab/3e2e6a3e93974772a392dd225187fc8f [2023-12-15 19:41:25,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 19:41:25,427 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 19:41:25,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 19:41:25,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 19:41:25,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 19:41:25,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166c25d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25, skipping insertion in model container [2023-12-15 19:41:25,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,463 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 19:41:25,560 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_fillercode_fillercodesize_ps-cn-100_file-33.i[916,929] [2023-12-15 19:41:25,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:41:25,631 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 19:41:25,639 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-33.i[916,929] [2023-12-15 19:41:25,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:41:25,687 INFO L206 MainTranslator]: Completed translation [2023-12-15 19:41:25,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25 WrapperNode [2023-12-15 19:41:25,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 19:41:25,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 19:41:25,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 19:41:25,695 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 19:41:25,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,760 INFO L138 Inliner]: procedures = 26, calls = 69, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 341 [2023-12-15 19:41:25,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 19:41:25,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 19:41:25,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 19:41:25,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 19:41:25,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,794 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 19:41:25,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 19:41:25,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 19:41:25,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 19:41:25,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 19:41:25,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (1/1) ... [2023-12-15 19:41:25,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:41:25,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:41:25,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 19:41:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 19:41:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 19:41:25,901 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 19:41:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 19:41:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 19:41:25,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 19:41:25,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 19:41:25,989 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 19:41:25,992 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 19:41:26,409 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 19:41:26,454 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 19:41:26,454 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 19:41:26,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:41:26 BoogieIcfgContainer [2023-12-15 19:41:26,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 19:41:26,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 19:41:26,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 19:41:26,458 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 19:41:26,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 07:41:25" (1/3) ... [2023-12-15 19:41:26,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c46052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:41:26, skipping insertion in model container [2023-12-15 19:41:26,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:41:25" (2/3) ... [2023-12-15 19:41:26,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c46052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:41:26, skipping insertion in model container [2023-12-15 19:41:26,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:41:26" (3/3) ... [2023-12-15 19:41:26,460 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-33.i [2023-12-15 19:41:26,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 19:41:26,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 19:41:26,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 19:41:26,526 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;@54e35701, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 19:41:26,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 19:41:26,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 82 states have (on average 1.5121951219512195) internal successors, (124), 83 states have internal predecessors, (124), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-15 19:41:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-15 19:41:26,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:41:26,577 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:41:26,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:41:26,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:41:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash -331437132, now seen corresponding path program 1 times [2023-12-15 19:41:26,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:41:26,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946572216] [2023-12-15 19:41:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:41:26,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:41:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:41:26,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:41:26,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946572216] [2023-12-15 19:41:26,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 19:41:26,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360965873] [2023-12-15 19:41:26,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:41:26,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:41:26,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:41:26,799 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:41:26,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 19:41:27,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:41:27,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 19:41:27,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:41:27,106 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 6050 trivial. 0 not checked. [2023-12-15 19:41:27,106 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:41:27,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360965873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:41:27,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:41:27,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:41:27,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977975427] [2023-12-15 19:41:27,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:41:27,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 19:41:27,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:41:27,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 19:41:27,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:41:27,141 INFO L87 Difference]: Start difference. First operand has 141 states, 82 states have (on average 1.5121951219512195) internal successors, (124), 83 states have internal predecessors, (124), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-15 19:41:27,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:41:27,177 INFO L93 Difference]: Finished difference Result 277 states and 522 transitions. [2023-12-15 19:41:27,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 19:41:27,179 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) Word has length 336 [2023-12-15 19:41:27,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:41:27,185 INFO L225 Difference]: With dead ends: 277 [2023-12-15 19:41:27,185 INFO L226 Difference]: Without dead ends: 137 [2023-12-15 19:41:27,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:41:27,192 INFO L413 NwaCegarLoop]: 222 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, 222 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:41:27,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 19:41:27,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-15 19:41:27,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2023-12-15 19:41:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 79 states have (on average 1.4303797468354431) internal successors, (113), 79 states have internal predecessors, (113), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-15 19:41:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 225 transitions. [2023-12-15 19:41:27,232 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 225 transitions. Word has length 336 [2023-12-15 19:41:27,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:41:27,232 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 225 transitions. [2023-12-15 19:41:27,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (56), 1 states have call predecessors, (56), 2 states have call successors, (56) [2023-12-15 19:41:27,233 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 225 transitions. [2023-12-15 19:41:27,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-15 19:41:27,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:41:27,238 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:41:27,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 19:41:27,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 19:41:27,446 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:41:27,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:41:27,447 INFO L85 PathProgramCache]: Analyzing trace with hash 797974076, now seen corresponding path program 1 times [2023-12-15 19:41:27,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:41:27,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655482142] [2023-12-15 19:41:27,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:41:27,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:41:27,568 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 19:41:27,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372303696] [2023-12-15 19:41:27,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:41:27,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:41:27,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:41:27,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:41:27,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 19:41:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:41:27,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 19:41:27,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:41:27,986 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 3129 proven. 78 refuted. 0 times theorem prover too weak. 2953 trivial. 0 not checked. [2023-12-15 19:41:27,986 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 19:41:28,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 87 proven. 78 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2023-12-15 19:41:28,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:41:28,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655482142] [2023-12-15 19:41:28,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 19:41:28,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372303696] [2023-12-15 19:41:28,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372303696] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 19:41:28,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 19:41:28,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-15 19:41:28,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269719644] [2023-12-15 19:41:28,207 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 19:41:28,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 19:41:28,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:41:28,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 19:41:28,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 19:41:28,214 INFO L87 Difference]: Start difference. First operand 137 states and 225 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (82), 2 states have call predecessors, (82), 4 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) [2023-12-15 19:41:28,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:41:28,468 INFO L93 Difference]: Finished difference Result 279 states and 454 transitions. [2023-12-15 19:41:28,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 19:41:28,469 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (82), 2 states have call predecessors, (82), 4 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) Word has length 336 [2023-12-15 19:41:28,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:41:28,471 INFO L225 Difference]: With dead ends: 279 [2023-12-15 19:41:28,471 INFO L226 Difference]: Without dead ends: 143 [2023-12-15 19:41:28,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 664 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-15 19:41:28,473 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 121 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 19:41:28,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 351 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 19:41:28,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-12-15 19:41:28,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 141. [2023-12-15 19:41:28,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 82 states have internal predecessors, (114), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-15 19:41:28,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 226 transitions. [2023-12-15 19:41:28,486 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 226 transitions. Word has length 336 [2023-12-15 19:41:28,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:41:28,488 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 226 transitions. [2023-12-15 19:41:28,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (82), 2 states have call predecessors, (82), 4 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) [2023-12-15 19:41:28,488 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 226 transitions. [2023-12-15 19:41:28,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-15 19:41:28,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:41:28,520 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:41:28,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 19:41:28,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 19:41:28,726 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:41:28,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:41:28,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1257531340, now seen corresponding path program 1 times [2023-12-15 19:41:28,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:41:28,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24340720] [2023-12-15 19:41:28,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:41:28,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:41:28,759 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 19:41:28,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296489460] [2023-12-15 19:41:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:41:28,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:41:28,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:41:28,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:41:28,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 19:41:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:41:28,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-15 19:41:28,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-15 19:42:14,850 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 19:42:14,850 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 19:42:15,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 19:42:15,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown