/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-29.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:06:24,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:06:24,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:06:24,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:06:24,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:06:24,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:06:24,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:06:24,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:06:24,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:06:24,810 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:06:24,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:06:24,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:06:24,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:06:24,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:06:24,811 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:06:24,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:06:24,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:06:24,812 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:06:24,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:06:24,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:06:24,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:06:24,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:06:24,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:06:24,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:06:24,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:06:24,818 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:06:24,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:06:24,818 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:06:24,818 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:06:24,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:06:24,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:06:24,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:06:24,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:06:24,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:06:24,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:06:24,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:06:24,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:06:24,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:06:24,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:06:24,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:06:24,820 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:06:24,820 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:06:24,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:06:24,821 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:06:25,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:06:25,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:06:25,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:06:25,022 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:06:25,022 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:06:25,023 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-29.i [2023-12-15 21:06:25,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:06:26,127 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:06:26,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-29.i [2023-12-15 21:06:26,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594e93514/3faf6cb1a6664037abb959ab54bed49b/FLAGcc798af62 [2023-12-15 21:06:26,148 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/594e93514/3faf6cb1a6664037abb959ab54bed49b [2023-12-15 21:06:26,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:06:26,151 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:06:26,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:06:26,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:06:26,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:06:26,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790b7d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26, skipping insertion in model container [2023-12-15 21:06:26,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,176 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:06:26,274 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-29.i[915,928] [2023-12-15 21:06:26,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:06:26,300 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:06:26,307 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-29.i[915,928] [2023-12-15 21:06:26,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:06:26,325 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:06:26,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26 WrapperNode [2023-12-15 21:06:26,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:06:26,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:06:26,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:06:26,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:06:26,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,355 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 96 [2023-12-15 21:06:26,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:06:26,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:06:26,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:06:26,356 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:06:26,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,365 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,376 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 21:06:26,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,380 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:06:26,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:06:26,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:06:26,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:06:26,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (1/1) ... [2023-12-15 21:06:26,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:06:26,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:06:26,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 21:06:26,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 21:06:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:06:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:06:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:06:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:06:26,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:06:26,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:06:26,502 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:06:26,504 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:06:26,745 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:06:26,778 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:06:26,778 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:06:26,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:06:26 BoogieIcfgContainer [2023-12-15 21:06:26,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:06:26,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:06:26,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:06:26,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:06:26,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:06:26" (1/3) ... [2023-12-15 21:06:26,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad04c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:06:26, skipping insertion in model container [2023-12-15 21:06:26,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:06:26" (2/3) ... [2023-12-15 21:06:26,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ad04c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:06:26, skipping insertion in model container [2023-12-15 21:06:26,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:06:26" (3/3) ... [2023-12-15 21:06:26,788 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-29.i [2023-12-15 21:06:26,800 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:06:26,800 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:06:26,840 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:06:26,846 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;@47d3560f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:06:26,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:06:26,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-15 21:06:26,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-15 21:06:26,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:06:26,865 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:06:26,865 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:06:26,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:06:26,873 INFO L85 PathProgramCache]: Analyzing trace with hash 662843919, now seen corresponding path program 1 times [2023-12-15 21:06:26,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:06:26,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554364761] [2023-12-15 21:06:26,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:06:26,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:06:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:06:26,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:06:26,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554364761] [2023-12-15 21:06:26,997 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:06:26,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612865663] [2023-12-15 21:06:26,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:06:26,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:06:26,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:06:27,001 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:06:27,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:06:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:06:27,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:06:27,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:06:27,132 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-12-15 21:06:27,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:06:27,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612865663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:06:27,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:06:27,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:06:27,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632707926] [2023-12-15 21:06:27,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:06:27,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:06:27,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:06:27,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:06:27,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:06:27,167 INFO L87 Difference]: Start difference. First operand has 41 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 21:06:27,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:06:27,202 INFO L93 Difference]: Finished difference Result 79 states and 140 transitions. [2023-12-15 21:06:27,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:06:27,203 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 96 [2023-12-15 21:06:27,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:06:27,209 INFO L225 Difference]: With dead ends: 79 [2023-12-15 21:06:27,209 INFO L226 Difference]: Without dead ends: 39 [2023-12-15 21:06:27,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:06:27,214 INFO L413 NwaCegarLoop]: 55 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, 55 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:06:27,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:06:27,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-12-15 21:06:27,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-12-15 21:06:27,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-15 21:06:27,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 58 transitions. [2023-12-15 21:06:27,248 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 58 transitions. Word has length 96 [2023-12-15 21:06:27,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:06:27,248 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 58 transitions. [2023-12-15 21:06:27,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-15 21:06:27,249 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2023-12-15 21:06:27,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-15 21:06:27,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:06:27,251 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:06:27,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:06:27,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 21:06:27,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:06:27,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:06:27,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1979565553, now seen corresponding path program 1 times [2023-12-15 21:06:27,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:06:27,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907187713] [2023-12-15 21:06:27,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:06:27,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:06:27,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:06:27,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1668284301] [2023-12-15 21:06:27,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:06:27,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:06:27,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:06:27,499 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:06:27,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:06:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:06:27,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-15 21:06:27,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:06:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 225 proven. 45 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-15 21:06:29,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:06:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-15 21:06:30,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:06:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907187713] [2023-12-15 21:06:30,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:06:30,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668284301] [2023-12-15 21:06:30,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668284301] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:06:30,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:06:30,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-12-15 21:06:30,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555922735] [2023-12-15 21:06:30,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:06:30,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:06:30,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:06:30,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:06:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-12-15 21:06:30,298 INFO L87 Difference]: Start difference. First operand 39 states and 58 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-15 21:06:30,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:06:30,667 INFO L93 Difference]: Finished difference Result 55 states and 77 transitions. [2023-12-15 21:06:30,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:06:30,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 96 [2023-12-15 21:06:30,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:06:30,669 INFO L225 Difference]: With dead ends: 55 [2023-12-15 21:06:30,669 INFO L226 Difference]: Without dead ends: 53 [2023-12-15 21:06:30,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-12-15 21:06:30,670 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 14 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:06:30,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 231 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:06:30,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-12-15 21:06:30,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2023-12-15 21:06:30,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 32 states have internal predecessors, (38), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-15 21:06:30,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2023-12-15 21:06:30,678 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 74 transitions. Word has length 96 [2023-12-15 21:06:30,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:06:30,679 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 74 transitions. [2023-12-15 21:06:30,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-15 21:06:30,679 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 74 transitions. [2023-12-15 21:06:30,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-15 21:06:30,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:06:30,680 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:06:30,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 21:06:30,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 21:06:30,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:06:30,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:06:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash -204558191, now seen corresponding path program 1 times [2023-12-15 21:06:30,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:06:30,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270161822] [2023-12-15 21:06:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:06:30,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:06:30,901 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:06:30,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859325115] [2023-12-15 21:06:30,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:06:30,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:06:30,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:06:30,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:06:30,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:06:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:06:30,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:06:30,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:06:31,094 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-15 21:06:31,095 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:06:31,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:06:31,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270161822] [2023-12-15 21:06:31,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:06:31,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859325115] [2023-12-15 21:06:31,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859325115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:06:31,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:06:31,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:06:31,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578128078] [2023-12-15 21:06:31,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:06:31,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:06:31,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:06:31,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:06:31,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:06:31,098 INFO L87 Difference]: Start difference. First operand 52 states and 74 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-15 21:06:31,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:06:31,147 INFO L93 Difference]: Finished difference Result 136 states and 189 transitions. [2023-12-15 21:06:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:06:31,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 96 [2023-12-15 21:06:31,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:06:31,151 INFO L225 Difference]: With dead ends: 136 [2023-12-15 21:06:31,151 INFO L226 Difference]: Without dead ends: 85 [2023-12-15 21:06:31,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:06:31,153 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 28 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:06:31,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 122 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:06:31,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-15 21:06:31,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2023-12-15 21:06:31,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 50 states have (on average 1.18) internal successors, (59), 53 states have internal predecessors, (59), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 21:06:31,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 113 transitions. [2023-12-15 21:06:31,173 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 113 transitions. Word has length 96 [2023-12-15 21:06:31,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:06:31,173 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 113 transitions. [2023-12-15 21:06:31,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-15 21:06:31,173 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 113 transitions. [2023-12-15 21:06:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-15 21:06:31,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:06:31,177 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:06:31,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 21:06:31,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:06:31,385 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:06:31,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:06:31,385 INFO L85 PathProgramCache]: Analyzing trace with hash -204498609, now seen corresponding path program 1 times [2023-12-15 21:06:31,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:06:31,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484888118] [2023-12-15 21:06:31,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:06:31,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:06:31,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:06:31,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [618690974] [2023-12-15 21:06:31,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:06:31,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:06:31,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:06:31,399 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:06:31,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:06:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-15 21:06:31,462 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-15 21:06:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-15 21:06:31,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-15 21:06:31,509 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-15 21:06:31,510 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:06:31,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 21:06:31,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:06:31,714 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-15 21:06:31,717 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:06:31,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:06:31 BoogieIcfgContainer [2023-12-15 21:06:31,754 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:06:31,754 INFO L158 Benchmark]: Toolchain (without parser) took 5603.27ms. Allocated memory was 308.3MB in the beginning and 370.1MB in the end (delta: 61.9MB). Free memory was 271.5MB in the beginning and 168.7MB in the end (delta: 102.8MB). Peak memory consumption was 166.3MB. Max. memory is 8.0GB. [2023-12-15 21:06:31,754 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:06:31,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.40ms. Allocated memory is still 308.3MB. Free memory was 271.0MB in the beginning and 259.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-15 21:06:31,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.45ms. Allocated memory is still 308.3MB. Free memory was 259.4MB in the beginning and 256.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 21:06:31,755 INFO L158 Benchmark]: Boogie Preprocessor took 30.11ms. Allocated memory is still 308.3MB. Free memory was 256.9MB in the beginning and 254.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 21:06:31,755 INFO L158 Benchmark]: RCFGBuilder took 392.26ms. Allocated memory is still 308.3MB. Free memory was 253.7MB in the beginning and 236.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-15 21:06:31,755 INFO L158 Benchmark]: TraceAbstraction took 4971.18ms. Allocated memory was 308.3MB in the beginning and 370.1MB in the end (delta: 61.9MB). Free memory was 236.4MB in the beginning and 168.7MB in the end (delta: 67.7MB). Peak memory consumption was 130.6MB. Max. memory is 8.0GB. [2023-12-15 21:06:31,756 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 172.40ms. Allocated memory is still 308.3MB. Free memory was 271.0MB in the beginning and 259.4MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.45ms. Allocated memory is still 308.3MB. Free memory was 259.4MB in the beginning and 256.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.11ms. Allocated memory is still 308.3MB. Free memory was 256.9MB in the beginning and 254.2MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 392.26ms. Allocated memory is still 308.3MB. Free memory was 253.7MB in the beginning and 236.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4971.18ms. Allocated memory was 308.3MB in the beginning and 370.1MB in the end (delta: 61.9MB). Free memory was 236.4MB in the beginning and 168.7MB in the end (delta: 67.7MB). Peak memory consumption was 130.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of shiftRight at line 71. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_2 = 1; [L24] unsigned char var_1_3 = 128; [L25] unsigned char var_1_4 = 32; [L26] signed long int var_1_5 = 0; [L27] signed long int var_1_6 = 4; [L28] unsigned char var_1_7 = 16; [L29] unsigned char var_1_8 = 10; [L75] isInitial = 1 [L76] FCALL initially() [L77] COND TRUE 1 [L78] FCALL updateLastVariables() [L79] CALL updateVariables() [L44] var_1_2 = __VERIFIER_nondet_uchar() [L45] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L45] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L46] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L46] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_3=128, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L47] var_1_3 = __VERIFIER_nondet_uchar() [L48] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L48] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L49] CALL assume_abort_if_not(var_1_3 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L49] RET assume_abort_if_not(var_1_3 <= 255) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=32, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L50] var_1_4 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L51] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L52] CALL assume_abort_if_not(var_1_4 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L52] RET assume_abort_if_not(var_1_4 <= 255) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L53] CALL assume_abort_if_not(var_1_4 != 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L53] RET assume_abort_if_not(var_1_4 != 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=0, var_1_6=4, var_1_7=16, var_1_8=10] [L54] var_1_5 = __VERIFIER_nondet_long() [L55] CALL assume_abort_if_not(var_1_5 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L55] RET assume_abort_if_not(var_1_5 >= -2147483648) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L56] CALL assume_abort_if_not(var_1_5 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L56] RET assume_abort_if_not(var_1_5 <= 2147483647) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=4, var_1_7=16, var_1_8=10] [L57] var_1_6 = __VERIFIER_nondet_long() [L58] CALL assume_abort_if_not(var_1_6 >= -2147483648) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L58] RET assume_abort_if_not(var_1_6 >= -2147483648) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L59] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L59] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L60] CALL assume_abort_if_not(var_1_6 != 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L60] RET assume_abort_if_not(var_1_6 != 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=16, var_1_8=10] [L61] var_1_7 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_8=10] [L62] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_8=10] [L63] CALL assume_abort_if_not(var_1_7 <= 32) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=10] [L63] RET assume_abort_if_not(var_1_7 <= 32) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=10] [L64] var_1_8 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32] [L65] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32] [L66] CALL assume_abort_if_not(var_1_8 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=33] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=33] [L66] RET assume_abort_if_not(var_1_8 <= 254) VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=33] [L79] RET updateVariables() [L80] CALL step() [L33] EXPR (var_1_5 / var_1_6) >> var_1_7 VAL [isInitial=1, var_1_1=0, var_1_2=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=33] [L33] COND TRUE (var_1_3 / var_1_4) >= ((var_1_5 / var_1_6) >> var_1_7) [L34] var_1_1 = ((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8))) VAL [isInitial=1, var_1_1=32, var_1_2=0, var_1_3=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=33] [L80] RET step() [L81] CALL, EXPR property() [L71] EXPR (var_1_5 / var_1_6) >> var_1_7 VAL [isInitial=1, var_1_1=32, var_1_2=0, var_1_3=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=33] [L71-L72] return ((var_1_3 / var_1_4) >= ((var_1_5 / var_1_6) >> var_1_7)) ? (var_1_1 == ((unsigned char) ((((var_1_7) < (var_1_8)) ? (var_1_7) : (var_1_8))))) : (var_1_2 ? (var_1_1 == ((unsigned char) var_1_8)) : (var_1_1 == ((unsigned char) var_1_8))) ; [L81] RET, EXPR property() [L81] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=32, var_1_2=0, var_1_3=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=33] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=32, var_1_2=0, var_1_3=0, var_1_4=2, var_1_5=5, var_1_6=2, var_1_7=32, var_1_8=33] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 408 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 194 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 382 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 480 NumberOfCodeBlocks, 480 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 380 ConstructedInterpolants, 2 QuantifiedInterpolants, 1752 SizeOfPredicates, 19 NumberOfNonLiveVariables, 648 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1875/1920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-15 21:06:31,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...