/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-56.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 19:19:01,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 19:19:01,158 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 19:19:01,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 19:19:01,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 19:19:01,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 19:19:01,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 19:19:01,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 19:19:01,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 19:19:01,196 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 19:19:01,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 19:19:01,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 19:19:01,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 19:19:01,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 19:19:01,198 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 19:19:01,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 19:19:01,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 19:19:01,199 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 19:19:01,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 19:19:01,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 19:19:01,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 19:19:01,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 19:19:01,200 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 19:19:01,200 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 19:19:01,200 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 19:19:01,200 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 19:19:01,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 19:19:01,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 19:19:01,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 19:19:01,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 19:19:01,202 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 19:19:01,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 19:19:01,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 19:19:01,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 19:19:01,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 19:19:01,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 19:19:01,203 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 19:19:01,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 19:19:01,203 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 19:19:01,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 19:19:01,203 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 19:19:01,204 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 19:19:01,204 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 19:19:01,204 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 19:19:01,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 19:19:01,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 19:19:01,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 19:19:01,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 19:19:01,443 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 19:19:01,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-56.i [2023-12-20 19:19:02,478 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 19:19:02,643 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 19:19:02,644 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-56.i [2023-12-20 19:19:02,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b4e0d92c/bb69e737a9f941859939d7844374f6d1/FLAGb68dc7b42 [2023-12-20 19:19:02,659 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b4e0d92c/bb69e737a9f941859939d7844374f6d1 [2023-12-20 19:19:02,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 19:19:02,662 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 19:19:02,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 19:19:02,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 19:19:02,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 19:19:02,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:02,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f53217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02, skipping insertion in model container [2023-12-20 19:19:02,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:02,705 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 19:19:02,813 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-10_file-56.i[915,928] [2023-12-20 19:19:02,879 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 19:19:02,888 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 19:19:02,896 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-10_file-56.i[915,928] [2023-12-20 19:19:02,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 19:19:02,949 INFO L206 MainTranslator]: Completed translation [2023-12-20 19:19:02,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02 WrapperNode [2023-12-20 19:19:02,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 19:19:02,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 19:19:02,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 19:19:02,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 19:19:02,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:02,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,006 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 190 [2023-12-20 19:19:03,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 19:19:03,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 19:19:03,007 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 19:19:03,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 19:19:03,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,035 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]. [2023-12-20 19:19:03,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 19:19:03,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 19:19:03,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 19:19:03,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 19:19:03,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (1/1) ... [2023-12-20 19:19:03,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 19:19:03,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:19:03,082 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) [2023-12-20 19:19:03,101 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 [2023-12-20 19:19:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 19:19:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 19:19:03,105 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 19:19:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 19:19:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 19:19:03,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 19:19:03,196 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 19:19:03,197 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 19:19:03,458 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 19:19:03,488 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 19:19:03,488 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 19:19:03,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:19:03 BoogieIcfgContainer [2023-12-20 19:19:03,489 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 19:19:03,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 19:19:03,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 19:19:03,493 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 19:19:03,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 07:19:02" (1/3) ... [2023-12-20 19:19:03,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaa72fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:19:03, skipping insertion in model container [2023-12-20 19:19:03,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:19:02" (2/3) ... [2023-12-20 19:19:03,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaa72fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:19:03, skipping insertion in model container [2023-12-20 19:19:03,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:19:03" (3/3) ... [2023-12-20 19:19:03,494 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-56.i [2023-12-20 19:19:03,507 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 19:19:03,507 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 19:19:03,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 19:19:03,559 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;@2c81167f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 19:19:03,559 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 19:19:03,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 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) [2023-12-20 19:19:03,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-20 19:19:03,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:19:03,585 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] [2023-12-20 19:19:03,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:19:03,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:19:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash 165761846, now seen corresponding path program 1 times [2023-12-20 19:19:03,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:19:03,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627619096] [2023-12-20 19:19:03,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:03,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:19:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:19:03,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:19:03,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627619096] [2023-12-20 19:19:03,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 19:19:03,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565576963] [2023-12-20 19:19:03,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:03,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:19:03,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:19:03,841 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) [2023-12-20 19:19:03,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 19:19:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:19:03,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 19:19:03,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:19:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2023-12-20 19:19:04,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:19:04,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565576963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:19:04,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:19:04,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 19:19:04,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621028356] [2023-12-20 19:19:04,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:19:04,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 19:19:04,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:19:04,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 19:19:04,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 19:19:04,029 INFO L87 Difference]: Start difference. First operand has 78 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 42 states have internal predecessors, (55), 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 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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) [2023-12-20 19:19:04,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:19:04,068 INFO L93 Difference]: Finished difference Result 153 states and 278 transitions. [2023-12-20 19:19:04,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 19:19:04,072 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 205 [2023-12-20 19:19:04,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:19:04,079 INFO L225 Difference]: With dead ends: 153 [2023-12-20 19:19:04,079 INFO L226 Difference]: Without dead ends: 76 [2023-12-20 19:19:04,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 19:19:04,085 INFO L413 NwaCegarLoop]: 115 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, 115 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 [2023-12-20 19:19:04,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:19:04,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-20 19:19:04,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-20 19:19:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 40 states have (on average 1.25) internal successors, (50), 40 states have internal predecessors, (50), 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) [2023-12-20 19:19:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 118 transitions. [2023-12-20 19:19:04,119 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 118 transitions. Word has length 205 [2023-12-20 19:19:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:19:04,119 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 118 transitions. [2023-12-20 19:19:04,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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) [2023-12-20 19:19:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 118 transitions. [2023-12-20 19:19:04,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-20 19:19:04,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:19:04,122 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] [2023-12-20 19:19:04,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 19:19:04,328 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 [2023-12-20 19:19:04,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:19:04,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:19:04,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1008949750, now seen corresponding path program 1 times [2023-12-20 19:19:04,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:19:04,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126761818] [2023-12-20 19:19:04,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:04,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:19:04,381 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:19:04,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466255103] [2023-12-20 19:19:04,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:04,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:19:04,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:19:04,383 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) [2023-12-20 19:19:04,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 19:19:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:19:04,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 19:19:04,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:19:04,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-20 19:19:04,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:19:04,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:19:04,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126761818] [2023-12-20 19:19:04,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:19:04,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466255103] [2023-12-20 19:19:04,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466255103] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:19:04,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:19:04,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 19:19:04,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396941460] [2023-12-20 19:19:04,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:19:04,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 19:19:04,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:19:04,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 19:19:04,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 19:19:04,643 INFO L87 Difference]: Start difference. First operand 76 states and 118 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2023-12-20 19:19:04,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:19:04,695 INFO L93 Difference]: Finished difference Result 151 states and 235 transitions. [2023-12-20 19:19:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 19:19:04,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 205 [2023-12-20 19:19:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:19:04,701 INFO L225 Difference]: With dead ends: 151 [2023-12-20 19:19:04,701 INFO L226 Difference]: Without dead ends: 76 [2023-12-20 19:19:04,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 19:19:04,703 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 5 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 19:19:04,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 214 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:19:04,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-20 19:19:04,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-20 19:19:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 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) [2023-12-20 19:19:04,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 117 transitions. [2023-12-20 19:19:04,712 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 117 transitions. Word has length 205 [2023-12-20 19:19:04,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:19:04,716 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 117 transitions. [2023-12-20 19:19:04,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2023-12-20 19:19:04,717 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 117 transitions. [2023-12-20 19:19:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-20 19:19:04,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:19:04,719 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] [2023-12-20 19:19:04,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 19:19:04,924 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 [2023-12-20 19:19:04,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:19:04,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:19:04,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1007102708, now seen corresponding path program 1 times [2023-12-20 19:19:04,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:19:04,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430056190] [2023-12-20 19:19:04,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:04,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:19:04,982 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:19:04,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976510997] [2023-12-20 19:19:04,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:04,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:19:04,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:19:04,984 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) [2023-12-20 19:19:05,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 19:19:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:19:05,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-20 19:19:05,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:19:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-20 19:19:05,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:19:05,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:19:05,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430056190] [2023-12-20 19:19:05,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:19:05,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976510997] [2023-12-20 19:19:05,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976510997] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:19:05,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:19:05,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 19:19:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706308297] [2023-12-20 19:19:05,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:19:05,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 19:19:05,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:19:05,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 19:19:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 19:19:05,220 INFO L87 Difference]: Start difference. First operand 76 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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) [2023-12-20 19:19:05,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:19:05,359 INFO L93 Difference]: Finished difference Result 219 states and 321 transitions. [2023-12-20 19:19:05,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 19:19:05,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 205 [2023-12-20 19:19:05,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:19:05,366 INFO L225 Difference]: With dead ends: 219 [2023-12-20 19:19:05,366 INFO L226 Difference]: Without dead ends: 144 [2023-12-20 19:19:05,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 19:19:05,368 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 128 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 19:19:05,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 437 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 19:19:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-12-20 19:19:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 101. [2023-12-20 19:19:05,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 61 states have internal predecessors, (76), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 19:19:05,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 152 transitions. [2023-12-20 19:19:05,380 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 152 transitions. Word has length 205 [2023-12-20 19:19:05,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:19:05,380 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 152 transitions. [2023-12-20 19:19:05,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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) [2023-12-20 19:19:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 152 transitions. [2023-12-20 19:19:05,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-20 19:19:05,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:19:05,382 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] [2023-12-20 19:19:05,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 19:19:05,583 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 [2023-12-20 19:19:05,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:19:05,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:19:05,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1512857226, now seen corresponding path program 1 times [2023-12-20 19:19:05,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:19:05,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952617365] [2023-12-20 19:19:05,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:05,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:19:05,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:19:05,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [861793271] [2023-12-20 19:19:05,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:05,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:19:05,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:19:05,624 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) [2023-12-20 19:19:05,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 19:19:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:19:05,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 19:19:05,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:19:05,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 505 proven. 87 refuted. 0 times theorem prover too weak. 1652 trivial. 0 not checked. [2023-12-20 19:19:05,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 19:19:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 12 proven. 87 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2023-12-20 19:19:06,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:19:06,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952617365] [2023-12-20 19:19:06,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:19:06,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861793271] [2023-12-20 19:19:06,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861793271] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 19:19:06,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 19:19:06,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-20 19:19:06,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482090573] [2023-12-20 19:19:06,119 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 19:19:06,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 19:19:06,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:19:06,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 19:19:06,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 19:19:06,121 INFO L87 Difference]: Start difference. First operand 101 states and 152 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2023-12-20 19:19:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:19:06,260 INFO L93 Difference]: Finished difference Result 209 states and 310 transitions. [2023-12-20 19:19:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 19:19:06,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 205 [2023-12-20 19:19:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:19:06,263 INFO L225 Difference]: With dead ends: 209 [2023-12-20 19:19:06,263 INFO L226 Difference]: Without dead ends: 106 [2023-12-20 19:19:06,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 402 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-20 19:19:06,264 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 29 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 19:19:06,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 157 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 19:19:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-20 19:19:06,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2023-12-20 19:19:06,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 60 states have (on average 1.2) internal successors, (72), 61 states have internal predecessors, (72), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-20 19:19:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 148 transitions. [2023-12-20 19:19:06,274 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 148 transitions. Word has length 205 [2023-12-20 19:19:06,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:19:06,275 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 148 transitions. [2023-12-20 19:19:06,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2023-12-20 19:19:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 148 transitions. [2023-12-20 19:19:06,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-12-20 19:19:06,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:19:06,277 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] [2023-12-20 19:19:06,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 19:19:06,483 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 [2023-12-20 19:19:06,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:19:06,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:19:06,484 INFO L85 PathProgramCache]: Analyzing trace with hash 614075698, now seen corresponding path program 1 times [2023-12-20 19:19:06,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:19:06,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920568153] [2023-12-20 19:19:06,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:06,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:19:06,516 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:19:06,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382224154] [2023-12-20 19:19:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:19:06,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:19:06,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:19:06,518 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) [2023-12-20 19:19:06,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 19:19:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:19:06,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-20 19:19:06,803 INFO L285 TraceCheckSpWp]: Computing forward predicates...