/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_fillercodestructure_filler-pe-co_file-98.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 20:17:11,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 20:17:11,158 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 20:17:11,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 20:17:11,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 20:17:11,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 20:17:11,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 20:17:11,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 20:17:11,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 20:17:11,183 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 20:17:11,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 20:17:11,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 20:17:11,184 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 20:17:11,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 20:17:11,184 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 20:17:11,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 20:17:11,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 20:17:11,186 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 20:17:11,186 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 20:17:11,186 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 20:17:11,187 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 20:17:11,187 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 20:17:11,187 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 20:17:11,188 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 20:17:11,188 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 20:17:11,188 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 20:17:11,189 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 20:17:11,189 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 20:17:11,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 20:17:11,190 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 20:17:11,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 20:17:11,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 20:17:11,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:17:11,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 20:17:11,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 20:17:11,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 20:17:11,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 20:17:11,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 20:17:11,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 20:17:11,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 20:17:11,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 20:17:11,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 20:17:11,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 20:17:11,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 20:17:11,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 20:17:11,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 20:17:11,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 20:17:11,428 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 20:17:11,428 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 20:17:11,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-98.i [2023-12-15 20:17:12,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 20:17:12,855 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 20:17:12,855 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-98.i [2023-12-15 20:17:12,863 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e61ecab/624fbeec5538483f9b20d3a2565b9050/FLAGb78b9a104 [2023-12-15 20:17:12,884 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19e61ecab/624fbeec5538483f9b20d3a2565b9050 [2023-12-15 20:17:12,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 20:17:12,888 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 20:17:12,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 20:17:12,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 20:17:12,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 20:17:12,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:17:12" (1/1) ... [2023-12-15 20:17:12,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31a00eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:12, skipping insertion in model container [2023-12-15 20:17:12,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:17:12" (1/1) ... [2023-12-15 20:17:12,938 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 20:17:13,065 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_fillercodestructure_filler-pe-co_file-98.i[919,932] [2023-12-15 20:17:13,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:17:13,157 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 20:17:13,166 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_fillercodestructure_filler-pe-co_file-98.i[919,932] [2023-12-15 20:17:13,219 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:17:13,242 INFO L206 MainTranslator]: Completed translation [2023-12-15 20:17:13,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13 WrapperNode [2023-12-15 20:17:13,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 20:17:13,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 20:17:13,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 20:17:13,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 20:17:13,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,314 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 247 [2023-12-15 20:17:13,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 20:17:13,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 20:17:13,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 20:17:13,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 20:17:13,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,329 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,360 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 20:17:13,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,383 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,407 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 20:17:13,415 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 20:17:13,415 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 20:17:13,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 20:17:13,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (1/1) ... [2023-12-15 20:17:13,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:17:13,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:17:13,454 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 20:17:13,480 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 20:17:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 20:17:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 20:17:13,485 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 20:17:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 20:17:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 20:17:13,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 20:17:13,594 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 20:17:13,598 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 20:17:13,980 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 20:17:14,011 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 20:17:14,012 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 20:17:14,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:17:14 BoogieIcfgContainer [2023-12-15 20:17:14,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 20:17:14,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 20:17:14,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 20:17:14,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 20:17:14,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:17:12" (1/3) ... [2023-12-15 20:17:14,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3853190f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:17:14, skipping insertion in model container [2023-12-15 20:17:14,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:17:13" (2/3) ... [2023-12-15 20:17:14,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3853190f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:17:14, skipping insertion in model container [2023-12-15 20:17:14,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:17:14" (3/3) ... [2023-12-15 20:17:14,020 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-98.i [2023-12-15 20:17:14,036 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 20:17:14,036 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 20:17:14,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 20:17:14,096 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;@3a861ca7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 20:17:14,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 20:17:14,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 60 states have internal predecessors, (89), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 20:17:14,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-15 20:17:14,131 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:17:14,133 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:14,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:17:14,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:17:14,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1893098944, now seen corresponding path program 1 times [2023-12-15 20:17:14,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:17:14,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891911948] [2023-12-15 20:17:14,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:14,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:17:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:17:14,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:17:14,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891911948] [2023-12-15 20:17:14,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 20:17:14,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736114197] [2023-12-15 20:17:14,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:14,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:14,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:17:14,422 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 20:17:14,463 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 20:17:14,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:17:14,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 20:17:14,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:17:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2023-12-15 20:17:14,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:17:14,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736114197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:17:14,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:17:14,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 20:17:14,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869395613] [2023-12-15 20:17:14,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:17:14,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 20:17:14,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:17:14,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 20:17:14,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:17:14,822 INFO L87 Difference]: Start difference. First operand has 96 states, 59 states have (on average 1.5084745762711864) internal successors, (89), 60 states have internal predecessors, (89), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-15 20:17:14,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:17:14,905 INFO L93 Difference]: Finished difference Result 188 states and 344 transitions. [2023-12-15 20:17:14,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 20:17:14,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 213 [2023-12-15 20:17:14,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:17:14,915 INFO L225 Difference]: With dead ends: 188 [2023-12-15 20:17:14,915 INFO L226 Difference]: Without dead ends: 93 [2023-12-15 20:17:14,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 212 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 20:17:14,921 INFO L413 NwaCegarLoop]: 145 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, 145 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 20:17:14,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:17:14,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-15 20:17:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-12-15 20:17:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 57 states have internal predecessors, (80), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 20:17:14,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 148 transitions. [2023-12-15 20:17:14,969 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 148 transitions. Word has length 213 [2023-12-15 20:17:14,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:17:14,969 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 148 transitions. [2023-12-15 20:17:14,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-15 20:17:14,970 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 148 transitions. [2023-12-15 20:17:14,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-15 20:17:14,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:17:14,975 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:14,981 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 20:17:15,176 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 20:17:15,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:17:15,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:17:15,177 INFO L85 PathProgramCache]: Analyzing trace with hash -866085888, now seen corresponding path program 1 times [2023-12-15 20:17:15,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:17:15,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405550775] [2023-12-15 20:17:15,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:15,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:17:15,244 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:17:15,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323884992] [2023-12-15 20:17:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:15,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:17:15,248 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 20:17:15,254 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 20:17:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:17:15,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 20:17:15,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:17:15,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:17:15,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:17:15,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:17:15,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405550775] [2023-12-15 20:17:15,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:17:15,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323884992] [2023-12-15 20:17:15,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323884992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:17:15,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:17:15,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 20:17:15,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456097279] [2023-12-15 20:17:15,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:17:15,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 20:17:15,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:17:15,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 20:17:15,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 20:17:15,623 INFO L87 Difference]: Start difference. First operand 93 states and 148 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:15,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:17:15,998 INFO L93 Difference]: Finished difference Result 275 states and 438 transitions. [2023-12-15 20:17:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 20:17:15,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213 [2023-12-15 20:17:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:17:16,006 INFO L225 Difference]: With dead ends: 275 [2023-12-15 20:17:16,007 INFO L226 Difference]: Without dead ends: 183 [2023-12-15 20:17:16,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 20:17:16,012 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 185 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 20:17:16,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 448 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 20:17:16,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-12-15 20:17:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2023-12-15 20:17:16,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 110 states have (on average 1.3545454545454545) internal successors, (149), 110 states have internal predecessors, (149), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-15 20:17:16,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 285 transitions. [2023-12-15 20:17:16,072 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 285 transitions. Word has length 213 [2023-12-15 20:17:16,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:17:16,074 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 285 transitions. [2023-12-15 20:17:16,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:16,074 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 285 transitions. [2023-12-15 20:17:16,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-15 20:17:16,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:17:16,082 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:16,088 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 20:17:16,284 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 20:17:16,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:17:16,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:17:16,285 INFO L85 PathProgramCache]: Analyzing trace with hash -240914760, now seen corresponding path program 1 times [2023-12-15 20:17:16,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:17:16,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572054412] [2023-12-15 20:17:16,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:16,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:17:16,351 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:17:16,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2086012942] [2023-12-15 20:17:16,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:16,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:16,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:17:16,360 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:17:16,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 20:17:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:17:16,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 20:17:16,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:17:16,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:17:16,611 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:17:16,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:17:16,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572054412] [2023-12-15 20:17:16,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:17:16,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086012942] [2023-12-15 20:17:16,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086012942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:17:16,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:17:16,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 20:17:16,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487979501] [2023-12-15 20:17:16,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:17:16,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 20:17:16,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:17:16,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 20:17:16,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-15 20:17:16,616 INFO L87 Difference]: Start difference. First operand 181 states and 285 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:16,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:17:16,985 INFO L93 Difference]: Finished difference Result 463 states and 732 transitions. [2023-12-15 20:17:16,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 20:17:16,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 213 [2023-12-15 20:17:16,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:17:16,991 INFO L225 Difference]: With dead ends: 463 [2023-12-15 20:17:16,992 INFO L226 Difference]: Without dead ends: 274 [2023-12-15 20:17:16,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 20:17:16,995 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 181 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 20:17:16,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 682 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 20:17:17,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-12-15 20:17:17,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 271. [2023-12-15 20:17:17,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 165 states have (on average 1.3454545454545455) internal successors, (222), 165 states have internal predecessors, (222), 102 states have call successors, (102), 3 states have call predecessors, (102), 3 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-15 20:17:17,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 426 transitions. [2023-12-15 20:17:17,047 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 426 transitions. Word has length 213 [2023-12-15 20:17:17,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:17:17,049 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 426 transitions. [2023-12-15 20:17:17,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:17,049 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 426 transitions. [2023-12-15 20:17:17,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-15 20:17:17,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:17:17,052 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:17,067 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 20:17:17,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:17,268 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:17:17,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:17:17,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1310409344, now seen corresponding path program 1 times [2023-12-15 20:17:17,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:17:17,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162944176] [2023-12-15 20:17:17,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:17,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:17:17,319 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:17:17,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1795437350] [2023-12-15 20:17:17,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:17,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:17,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:17:17,321 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:17:17,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 20:17:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:17:17,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 20:17:17,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:17:17,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:17:17,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:17:17,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:17:17,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162944176] [2023-12-15 20:17:17,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:17:17,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795437350] [2023-12-15 20:17:17,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795437350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:17:17,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:17:17,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:17:17,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546035984] [2023-12-15 20:17:17,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:17:17,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:17:17,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:17:17,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:17:17,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:17:17,532 INFO L87 Difference]: Start difference. First operand 271 states and 426 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:17,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:17:17,638 INFO L93 Difference]: Finished difference Result 626 states and 982 transitions. [2023-12-15 20:17:17,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:17:17,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214 [2023-12-15 20:17:17,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:17:17,643 INFO L225 Difference]: With dead ends: 626 [2023-12-15 20:17:17,643 INFO L226 Difference]: Without dead ends: 356 [2023-12-15 20:17:17,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:17:17,648 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 30 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:17:17,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 267 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:17:17,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-12-15 20:17:17,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 339. [2023-12-15 20:17:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 233 states have (on average 1.407725321888412) internal successors, (328), 233 states have internal predecessors, (328), 102 states have call successors, (102), 3 states have call predecessors, (102), 3 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-15 20:17:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 532 transitions. [2023-12-15 20:17:17,687 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 532 transitions. Word has length 214 [2023-12-15 20:17:17,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:17:17,688 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 532 transitions. [2023-12-15 20:17:17,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:17,688 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 532 transitions. [2023-12-15 20:17:17,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-15 20:17:17,690 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:17:17,691 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:17,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 20:17:17,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:17,898 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:17:17,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:17:17,898 INFO L85 PathProgramCache]: Analyzing trace with hash 492760894, now seen corresponding path program 1 times [2023-12-15 20:17:17,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:17:17,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406708441] [2023-12-15 20:17:17,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:17,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:17:17,944 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:17:17,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062377143] [2023-12-15 20:17:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:17,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:17,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:17:17,946 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:17:17,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 20:17:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:17:18,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 20:17:18,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:17:18,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:17:18,146 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:17:18,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:17:18,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406708441] [2023-12-15 20:17:18,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:17:18,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062377143] [2023-12-15 20:17:18,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062377143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:17:18,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:17:18,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:17:18,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651174876] [2023-12-15 20:17:18,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:17:18,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:17:18,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:17:18,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:17:18,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:17:18,148 INFO L87 Difference]: Start difference. First operand 339 states and 532 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:18,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:17:18,271 INFO L93 Difference]: Finished difference Result 731 states and 1141 transitions. [2023-12-15 20:17:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:17:18,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214 [2023-12-15 20:17:18,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:17:18,275 INFO L225 Difference]: With dead ends: 731 [2023-12-15 20:17:18,275 INFO L226 Difference]: Without dead ends: 393 [2023-12-15 20:17:18,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:17:18,276 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 31 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:17:18,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 265 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:17:18,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-12-15 20:17:18,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 314. [2023-12-15 20:17:18,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 208 states have (on average 1.3701923076923077) internal successors, (285), 208 states have internal predecessors, (285), 102 states have call successors, (102), 3 states have call predecessors, (102), 3 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-15 20:17:18,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 489 transitions. [2023-12-15 20:17:18,302 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 489 transitions. Word has length 214 [2023-12-15 20:17:18,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:17:18,305 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 489 transitions. [2023-12-15 20:17:18,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:18,306 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 489 transitions. [2023-12-15 20:17:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-15 20:17:18,308 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:17:18,308 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:18,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 20:17:18,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:18,515 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:17:18,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:17:18,515 INFO L85 PathProgramCache]: Analyzing trace with hash -116785402, now seen corresponding path program 1 times [2023-12-15 20:17:18,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:17:18,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94144749] [2023-12-15 20:17:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:18,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:17:18,556 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:17:18,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816503446] [2023-12-15 20:17:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:18,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:18,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:17:18,558 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:17:18,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 20:17:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:17:18,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-15 20:17:18,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:17:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:17:19,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:17:19,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:17:19,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94144749] [2023-12-15 20:17:19,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:17:19,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816503446] [2023-12-15 20:17:19,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816503446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:17:19,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:17:19,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 20:17:19,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310313139] [2023-12-15 20:17:19,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:17:19,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 20:17:19,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:17:19,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 20:17:19,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 20:17:19,429 INFO L87 Difference]: Start difference. First operand 314 states and 489 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:19,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:17:19,894 INFO L93 Difference]: Finished difference Result 940 states and 1469 transitions. [2023-12-15 20:17:19,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 20:17:19,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 214 [2023-12-15 20:17:19,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:17:19,898 INFO L225 Difference]: With dead ends: 940 [2023-12-15 20:17:19,898 INFO L226 Difference]: Without dead ends: 627 [2023-12-15 20:17:19,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 20:17:19,900 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 185 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 20:17:19,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 558 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 20:17:19,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2023-12-15 20:17:19,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 598. [2023-12-15 20:17:19,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 387 states have (on average 1.3462532299741603) internal successors, (521), 387 states have internal predecessors, (521), 204 states have call successors, (204), 6 states have call predecessors, (204), 6 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2023-12-15 20:17:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 929 transitions. [2023-12-15 20:17:19,959 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 929 transitions. Word has length 214 [2023-12-15 20:17:19,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:17:19,959 INFO L495 AbstractCegarLoop]: Abstraction has 598 states and 929 transitions. [2023-12-15 20:17:19,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:17:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 929 transitions. [2023-12-15 20:17:19,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-15 20:17:19,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:17:19,964 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:17:19,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 20:17:20,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:20,171 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:17:20,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:17:20,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1127902652, now seen corresponding path program 1 times [2023-12-15 20:17:20,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:17:20,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14494711] [2023-12-15 20:17:20,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:20,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:17:20,200 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:17:20,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1367419927] [2023-12-15 20:17:20,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:17:20,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:17:20,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:17:20,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:17:20,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 20:17:20,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:17:20,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 57 conjunts are in the unsatisfiable core [2023-12-15 20:17:20,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-15 20:18:02,577 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 20:18:02,578 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 20:18:03,616 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-15 20:18:03,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown