/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_loopvsstraightlinecode_25-1loop_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 11:46:59,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 11:46:59,479 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 11:46:59,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 11:46:59,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 11:46:59,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 11:46:59,508 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 11:46:59,509 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 11:46:59,509 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 11:46:59,509 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 11:46:59,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 11:46:59,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 11:46:59,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 11:46:59,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 11:46:59,510 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 11:46:59,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 11:46:59,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 11:46:59,511 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 11:46:59,511 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 11:46:59,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 11:46:59,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 11:46:59,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 11:46:59,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 11:46:59,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 11:46:59,513 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 11:46:59,513 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 11:46:59,513 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 11:46:59,514 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 11:46:59,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 11:46:59,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 11:46:59,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 11:46:59,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 11:46:59,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:46:59,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 11:46:59,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 11:46:59,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 11:46:59,515 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 11:46:59,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 11:46:59,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 11:46:59,516 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 11:46:59,516 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 11:46:59,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 11:46:59,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 11:46:59,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 11:46:59,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 11:46:59,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 11:46:59,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 11:46:59,722 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 11:46:59,722 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 11:46:59,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i [2023-12-19 11:47:00,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 11:47:00,845 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 11:47:00,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-87.i [2023-12-19 11:47:00,851 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38da0bb4d/e4dd1a14f1284483bc8ce795e6259110/FLAG4f84c3b94 [2023-12-19 11:47:00,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38da0bb4d/e4dd1a14f1284483bc8ce795e6259110 [2023-12-19 11:47:00,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 11:47:00,864 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 11:47:00,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 11:47:00,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 11:47:00,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 11:47:00,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:47:00" (1/1) ... [2023-12-19 11:47:00,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6076cb94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:00, skipping insertion in model container [2023-12-19 11:47:00,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:47:00" (1/1) ... [2023-12-19 11:47:00,895 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 11:47:01,014 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_loopvsstraightlinecode_25-1loop_file-87.i[915,928] [2023-12-19 11:47:01,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:47:01,070 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 11:47:01,077 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_loopvsstraightlinecode_25-1loop_file-87.i[915,928] [2023-12-19 11:47:01,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 11:47:01,098 INFO L206 MainTranslator]: Completed translation [2023-12-19 11:47:01,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01 WrapperNode [2023-12-19 11:47:01,098 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 11:47:01,099 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 11:47:01,099 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 11:47:01,099 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 11:47:01,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,124 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 122 [2023-12-19 11:47:01,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 11:47:01,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 11:47:01,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 11:47:01,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 11:47:01,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,134 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,156 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]. [2023-12-19 11:47:01,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,166 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,168 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 11:47:01,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 11:47:01,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 11:47:01,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 11:47:01,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (1/1) ... [2023-12-19 11:47:01,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 11:47:01,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:01,204 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) [2023-12-19 11:47:01,221 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 [2023-12-19 11:47:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 11:47:01,226 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 11:47:01,227 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 11:47:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 11:47:01,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 11:47:01,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 11:47:01,300 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 11:47:01,303 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 11:47:01,538 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 11:47:01,575 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 11:47:01,575 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 11:47:01,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:47:01 BoogieIcfgContainer [2023-12-19 11:47:01,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 11:47:01,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 11:47:01,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 11:47:01,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 11:47:01,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:47:00" (1/3) ... [2023-12-19 11:47:01,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd296e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:47:01, skipping insertion in model container [2023-12-19 11:47:01,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:47:01" (2/3) ... [2023-12-19 11:47:01,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd296e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:47:01, skipping insertion in model container [2023-12-19 11:47:01,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:47:01" (3/3) ... [2023-12-19 11:47:01,585 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-87.i [2023-12-19 11:47:01,596 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 11:47:01,596 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 11:47:01,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 11:47:01,651 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;@570dee9c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 11:47:01,652 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 11:47:01,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:47:01,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 11:47:01,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:01,661 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:01,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:01,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:01,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1375325063, now seen corresponding path program 1 times [2023-12-19 11:47:01,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:01,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325272947] [2023-12-19 11:47:01,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:01,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:01,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:47:01,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325272947] [2023-12-19 11:47:01,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 11:47:01,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369305880] [2023-12-19 11:47:01,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:01,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:01,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:01,773 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) [2023-12-19 11:47:01,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 11:47:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:01,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 11:47:01,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:47:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-19 11:47:01,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 11:47:01,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369305880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 11:47:01,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 11:47:01,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 11:47:01,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847753261] [2023-12-19 11:47:01,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 11:47:01,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 11:47:01,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:47:01,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 11:47:01,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:47:01,899 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 11:47:01,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:47:01,922 INFO L93 Difference]: Finished difference Result 97 states and 163 transitions. [2023-12-19 11:47:01,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 11:47:01,924 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2023-12-19 11:47:01,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:47:01,929 INFO L225 Difference]: With dead ends: 97 [2023-12-19 11:47:01,929 INFO L226 Difference]: Without dead ends: 47 [2023-12-19 11:47:01,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 11:47:01,933 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 11:47:01,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 11:47:01,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-12-19 11:47:01,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-12-19 11:47:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 31 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:47:01,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 70 transitions. [2023-12-19 11:47:01,957 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 70 transitions. Word has length 92 [2023-12-19 11:47:01,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:47:01,958 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 70 transitions. [2023-12-19 11:47:01,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-19 11:47:01,958 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 70 transitions. [2023-12-19 11:47:01,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 11:47:01,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:01,960 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:01,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 11:47:02,166 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 [2023-12-19 11:47:02,166 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:02,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:02,167 INFO L85 PathProgramCache]: Analyzing trace with hash 2075676797, now seen corresponding path program 1 times [2023-12-19 11:47:02,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:02,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850766458] [2023-12-19 11:47:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:02,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:02,223 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:47:02,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1347840710] [2023-12-19 11:47:02,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:02,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:02,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:02,225 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) [2023-12-19 11:47:02,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 11:47:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:02,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 11:47:02,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:47:02,436 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 105 proven. 33 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-12-19 11:47:02,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:47:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 11:47:02,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:47:02,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850766458] [2023-12-19 11:47:02,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:47:02,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347840710] [2023-12-19 11:47:02,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347840710] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 11:47:02,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 11:47:02,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-19 11:47:02,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556969782] [2023-12-19 11:47:02,576 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 11:47:02,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 11:47:02,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:47:02,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 11:47:02,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-12-19 11:47:02,578 INFO L87 Difference]: Start difference. First operand 47 states and 70 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-19 11:47:02,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:47:02,731 INFO L93 Difference]: Finished difference Result 105 states and 154 transitions. [2023-12-19 11:47:02,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 11:47:02,732 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 92 [2023-12-19 11:47:02,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:47:02,733 INFO L225 Difference]: With dead ends: 105 [2023-12-19 11:47:02,733 INFO L226 Difference]: Without dead ends: 59 [2023-12-19 11:47:02,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-12-19 11:47:02,734 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 77 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:47:02,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 192 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:47:02,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-19 11:47:02,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2023-12-19 11:47:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 36 states have internal predecessors, (47), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 11:47:02,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2023-12-19 11:47:02,743 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 92 [2023-12-19 11:47:02,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:47:02,744 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2023-12-19 11:47:02,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-12-19 11:47:02,744 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2023-12-19 11:47:02,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 11:47:02,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:02,745 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:02,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 11:47:02,951 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 [2023-12-19 11:47:02,952 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:02,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:02,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1539232129, now seen corresponding path program 1 times [2023-12-19 11:47:02,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:02,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671930184] [2023-12-19 11:47:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:02,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:02,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:47:02,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795526285] [2023-12-19 11:47:02,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:02,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:02,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:02,994 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) [2023-12-19 11:47:03,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 11:47:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:03,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-19 11:47:03,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:47:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-12-19 11:47:03,550 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:47:04,317 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 11:47:04,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:47:04,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671930184] [2023-12-19 11:47:04,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:47:04,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795526285] [2023-12-19 11:47:04,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795526285] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 11:47:04,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 11:47:04,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-12-19 11:47:04,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941459958] [2023-12-19 11:47:04,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 11:47:04,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 11:47:04,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:47:04,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 11:47:04,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-19 11:47:04,319 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-19 11:47:04,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:47:04,649 INFO L93 Difference]: Finished difference Result 172 states and 233 transitions. [2023-12-19 11:47:04,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 11:47:04,650 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 92 [2023-12-19 11:47:04,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:47:04,651 INFO L225 Difference]: With dead ends: 172 [2023-12-19 11:47:04,651 INFO L226 Difference]: Without dead ends: 120 [2023-12-19 11:47:04,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=455, Unknown=0, NotChecked=0, Total=650 [2023-12-19 11:47:04,653 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 154 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 11:47:04,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 200 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 11:47:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-19 11:47:04,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 94. [2023-12-19 11:47:04,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 73 states have (on average 1.356164383561644) internal successors, (99), 74 states have internal predecessors, (99), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 11:47:04,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2023-12-19 11:47:04,662 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 92 [2023-12-19 11:47:04,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:47:04,663 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2023-12-19 11:47:04,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-19 11:47:04,663 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2023-12-19 11:47:04,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 11:47:04,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:04,664 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:04,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 11:47:04,869 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 [2023-12-19 11:47:04,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:04,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:04,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2126038143, now seen corresponding path program 1 times [2023-12-19 11:47:04,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:04,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959946247] [2023-12-19 11:47:04,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:04,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:04,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:47:04,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168950627] [2023-12-19 11:47:04,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:04,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:04,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:04,897 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) [2023-12-19 11:47:04,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 11:47:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:04,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 11:47:04,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:47:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-12-19 11:47:05,280 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:47:05,849 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 11:47:05,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:47:05,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959946247] [2023-12-19 11:47:05,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:47:05,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168950627] [2023-12-19 11:47:05,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168950627] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 11:47:05,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 11:47:05,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-12-19 11:47:05,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541997679] [2023-12-19 11:47:05,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 11:47:05,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 11:47:05,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:47:05,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 11:47:05,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-19 11:47:05,852 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-19 11:47:06,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:47:06,121 INFO L93 Difference]: Finished difference Result 214 states and 294 transitions. [2023-12-19 11:47:06,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 11:47:06,122 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 92 [2023-12-19 11:47:06,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:47:06,127 INFO L225 Difference]: With dead ends: 214 [2023-12-19 11:47:06,127 INFO L226 Difference]: Without dead ends: 121 [2023-12-19 11:47:06,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2023-12-19 11:47:06,132 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 183 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 11:47:06,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 294 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 11:47:06,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-19 11:47:06,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 105. [2023-12-19 11:47:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.369047619047619) internal successors, (115), 85 states have internal predecessors, (115), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 11:47:06,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 147 transitions. [2023-12-19 11:47:06,142 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 147 transitions. Word has length 92 [2023-12-19 11:47:06,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:47:06,143 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 147 transitions. [2023-12-19 11:47:06,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-19 11:47:06,143 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 147 transitions. [2023-12-19 11:47:06,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-19 11:47:06,144 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:06,144 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:06,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 11:47:06,349 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 [2023-12-19 11:47:06,349 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:06,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:06,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1334358684, now seen corresponding path program 1 times [2023-12-19 11:47:06,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:06,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787292958] [2023-12-19 11:47:06,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:06,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:06,387 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:47:06,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864289395] [2023-12-19 11:47:06,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:06,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:06,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:06,388 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) [2023-12-19 11:47:06,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 11:47:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 11:47:06,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 11:47:06,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 11:47:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 183 proven. 24 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-12-19 11:47:06,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 11:47:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 15 proven. 24 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-19 11:47:06,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 11:47:06,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787292958] [2023-12-19 11:47:06,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 11:47:06,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864289395] [2023-12-19 11:47:06,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864289395] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 11:47:06,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 11:47:06,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-19 11:47:06,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810968844] [2023-12-19 11:47:06,615 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 11:47:06,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 11:47:06,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 11:47:06,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 11:47:06,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-19 11:47:06,616 INFO L87 Difference]: Start difference. First operand 105 states and 147 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-19 11:47:06,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 11:47:06,729 INFO L93 Difference]: Finished difference Result 191 states and 261 transitions. [2023-12-19 11:47:06,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 11:47:06,729 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 93 [2023-12-19 11:47:06,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 11:47:06,730 INFO L225 Difference]: With dead ends: 191 [2023-12-19 11:47:06,730 INFO L226 Difference]: Without dead ends: 87 [2023-12-19 11:47:06,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-19 11:47:06,731 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 65 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 11:47:06,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 102 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 11:47:06,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-12-19 11:47:06,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2023-12-19 11:47:06,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.25) internal successors, (75), 61 states have internal predecessors, (75), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 11:47:06,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 107 transitions. [2023-12-19 11:47:06,737 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 107 transitions. Word has length 93 [2023-12-19 11:47:06,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 11:47:06,737 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 107 transitions. [2023-12-19 11:47:06,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 3 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-19 11:47:06,737 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 107 transitions. [2023-12-19 11:47:06,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 11:47:06,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 11:47:06,738 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 11:47:06,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 11:47:06,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:06,945 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 11:47:06,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 11:47:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2054922330, now seen corresponding path program 1 times [2023-12-19 11:47:06,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 11:47:06,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936800137] [2023-12-19 11:47:06,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:06,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 11:47:06,992 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 11:47:06,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313165482] [2023-12-19 11:47:06,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 11:47:06,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:06,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 11:47:07,009 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 11:47:07,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 11:47:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 11:47:07,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 11:47:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 11:47:07,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 11:47:07,218 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 11:47:07,218 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 11:47:07,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 11:47:07,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 11:47:07,429 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-19 11:47:07,432 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 11:47:07,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:47:07 BoogieIcfgContainer [2023-12-19 11:47:07,483 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 11:47:07,484 INFO L158 Benchmark]: Toolchain (without parser) took 6620.00ms. Allocated memory was 348.1MB in the beginning and 418.4MB in the end (delta: 70.3MB). Free memory was 300.0MB in the beginning and 360.6MB in the end (delta: -60.6MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2023-12-19 11:47:07,484 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 11:47:07,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.09ms. Allocated memory is still 348.1MB. Free memory was 299.8MB in the beginning and 287.4MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 11:47:07,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.63ms. Allocated memory is still 348.1MB. Free memory was 287.2MB in the beginning and 285.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 11:47:07,484 INFO L158 Benchmark]: Boogie Preprocessor took 49.24ms. Allocated memory is still 348.1MB. Free memory was 285.2MB in the beginning and 282.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 11:47:07,485 INFO L158 Benchmark]: RCFGBuilder took 401.03ms. Allocated memory is still 348.1MB. Free memory was 282.8MB in the beginning and 265.2MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-19 11:47:07,485 INFO L158 Benchmark]: TraceAbstraction took 5905.84ms. Allocated memory was 348.1MB in the beginning and 418.4MB in the end (delta: 70.3MB). Free memory was 264.6MB in the beginning and 360.6MB in the end (delta: -96.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 11:47:07,486 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 199.2MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.09ms. Allocated memory is still 348.1MB. Free memory was 299.8MB in the beginning and 287.4MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.63ms. Allocated memory is still 348.1MB. Free memory was 287.2MB in the beginning and 285.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.24ms. Allocated memory is still 348.1MB. Free memory was 285.2MB in the beginning and 282.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 401.03ms. Allocated memory is still 348.1MB. Free memory was 282.8MB in the beginning and 265.2MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 5905.84ms. Allocated memory was 348.1MB in the beginning and 418.4MB in the end (delta: 70.3MB). Free memory was 264.6MB in the beginning and 360.6MB in the end (delta: -96.0MB). There was no memory consumed. 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 someBinaryFLOATComparisonOperation at line 93, overapproximation of shiftRight at line 93. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 1; [L23] unsigned char var_1_2 = 0; [L24] unsigned long int var_1_3 = 3164414017; [L25] unsigned long int var_1_4 = 128; [L26] signed char var_1_5 = -128; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 50; [L29] float var_1_8 = 5.1; [L30] float var_1_9 = 63.75; [L31] signed char var_1_10 = 100; [L32] signed long int var_1_12 = 5; [L33] signed char last_1_var_1_10 = 100; [L97] isInitial = 1 [L98] FCALL initially() [L99] int k_loop; [L100] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=0, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L100] COND TRUE k_loop < 1 [L101] CALL updateLastVariables() [L90] last_1_var_1_10 = var_1_10 [L101] RET updateLastVariables() [L102] CALL updateVariables() [L67] var_1_2 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L68] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L69] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L69] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=3164414017, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L70] var_1_3 = __VERIFIER_nondet_ulong() [L71] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L71] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L72] CALL assume_abort_if_not(var_1_3 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L72] RET assume_abort_if_not(var_1_3 <= 4294967294) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=128, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L73] var_1_4 = __VERIFIER_nondet_ulong() [L74] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L74] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L75] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L75] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=10, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L76] var_1_6 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_6 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L77] RET assume_abort_if_not(var_1_6 >= -126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L78] CALL assume_abort_if_not(var_1_6 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L78] RET assume_abort_if_not(var_1_6 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=50, var_1_8=51/10, var_1_9=255/4] [L79] var_1_7 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L80] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L81] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L81] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10, var_1_9=255/4] [L82] var_1_9 = __VERIFIER_nondet_float() [L83] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L83] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=5, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L84] var_1_12 = __VERIFIER_nondet_long() [L85] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L85] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L86] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L86] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L87] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L87] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=1, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L102] RET updateVariables() [L103] CALL step() [L37] COND TRUE \read(var_1_2) [L38] var_1_1 = ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L40] signed long int stepLocal_1 = -8; [L41] unsigned long int stepLocal_0 = var_1_1; VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=127, stepLocal_1=-8, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-128, var_1_6=126, var_1_7=0, var_1_8=51/10] [L42] COND FALSE !(stepLocal_1 < var_1_4) [L49] var_1_5 = -2 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=127, stepLocal_1=-8, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L51] unsigned long int stepLocal_3 = var_1_1; VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=127, stepLocal_1=-8, stepLocal_3=127, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L52] EXPR var_1_4 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=127, stepLocal_1=-8, stepLocal_3=127, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L52] unsigned long int stepLocal_2 = var_1_4 >> var_1_3; [L53] COND FALSE !(var_1_6 >= stepLocal_2) VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=127, stepLocal_1=-8, stepLocal_2=127, stepLocal_3=127, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L58] COND FALSE !((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) VAL [isInitial=1, last_1_var_1_10=100, stepLocal_0=127, stepLocal_1=-8, stepLocal_2=127, stepLocal_3=127, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L103] RET step() [L104] CALL, EXPR property() [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L93] EXPR var_1_4 >> var_1_3 VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L93] EXPR ((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1) VAL [isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L93-L94] return (((var_1_2 ? (var_1_1 == ((unsigned long int) ((((var_1_3 - var_1_4) < 0 ) ? -(var_1_3 - var_1_4) : (var_1_3 - var_1_4))))) : 1) && ((-8 < var_1_4) ? ((var_1_4 != var_1_1) ? (var_1_5 == ((signed char) (((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6))) - var_1_7))) : (var_1_5 == ((signed char) var_1_6))) : (var_1_5 == ((signed char) -2)))) && ((var_1_6 >= (var_1_4 >> var_1_3)) ? ((var_1_6 != var_1_1) ? (var_1_8 == ((float) var_1_9)) : 1) : 1)) && (((var_1_1 + (var_1_6 / var_1_12)) < var_1_1) ? ((var_1_7 >= last_1_var_1_10) ? (var_1_10 == ((signed char) -32)) : (var_1_10 == ((signed char) var_1_7))) : 1) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_10=100, var_1_10=100, var_1_12=127, var_1_1=127, var_1_2=1, var_1_3=2147483647, var_1_4=2147483520, var_1_5=-2, var_1_6=126, var_1_7=0, var_1_8=51/10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 6, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 497 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 479 mSDsluCounter, 855 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 595 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1014 IncrementalHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 260 mSDtfsCounter, 1014 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 851 GetRequests, 782 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=4, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 54 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 647 NumberOfCodeBlocks, 647 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 821 ConstructedInterpolants, 0 QuantifiedInterpolants, 2598 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1110 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 3066/3276 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 [2023-12-19 11:47:07,502 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...