/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_floatingpointinfluence_no-floats_file-62.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 10:55:48,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 10:55:48,136 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 10:55:48,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 10:55:48,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 10:55:48,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 10:55:48,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 10:55:48,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 10:55:48,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 10:55:48,166 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 10:55:48,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 10:55:48,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 10:55:48,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 10:55:48,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 10:55:48,169 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 10:55:48,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 10:55:48,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 10:55:48,169 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 10:55:48,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 10:55:48,169 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 10:55:48,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 10:55:48,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 10:55:48,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 10:55:48,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 10:55:48,171 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 10:55:48,171 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 10:55:48,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 10:55:48,171 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 10:55:48,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 10:55:48,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 10:55:48,172 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 10:55:48,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 10:55:48,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:55:48,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 10:55:48,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 10:55:48,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 10:55:48,173 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 10:55:48,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 10:55:48,173 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 10:55:48,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 10:55:48,174 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 10:55:48,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 10:55:48,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 10:55:48,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 10:55:48,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 10:55:48,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 10:55:48,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 10:55:48,392 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 10:55:48,392 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 10:55:48,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-62.i [2023-12-19 10:55:49,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 10:55:49,704 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 10:55:49,704 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-62.i [2023-12-19 10:55:49,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401bdac8c/696479128c444feb8b734e64d95be13e/FLAG6de665f2b [2023-12-19 10:55:49,726 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/401bdac8c/696479128c444feb8b734e64d95be13e [2023-12-19 10:55:49,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 10:55:49,729 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 10:55:49,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 10:55:49,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 10:55:49,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 10:55:49,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e708949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49, skipping insertion in model container [2023-12-19 10:55:49,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,758 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 10:55:49,881 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_floatingpointinfluence_no-floats_file-62.i[916,929] [2023-12-19 10:55:49,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:55:49,914 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 10:55:49,922 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_floatingpointinfluence_no-floats_file-62.i[916,929] [2023-12-19 10:55:49,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 10:55:49,948 INFO L206 MainTranslator]: Completed translation [2023-12-19 10:55:49,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49 WrapperNode [2023-12-19 10:55:49,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 10:55:49,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 10:55:49,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 10:55:49,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 10:55:49,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,974 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2023-12-19 10:55:49,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 10:55:49,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 10:55:49,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 10:55:49,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 10:55:49,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,993 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 10:55:49,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,996 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:49,999 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:50,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 10:55:50,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 10:55:50,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 10:55:50,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 10:55:50,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (1/1) ... [2023-12-19 10:55:50,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 10:55:50,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 10:55:50,035 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 10:55:50,045 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 10:55:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 10:55:50,068 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 10:55:50,068 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 10:55:50,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 10:55:50,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 10:55:50,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 10:55:50,120 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 10:55:50,121 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 10:55:50,282 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 10:55:50,310 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 10:55:50,310 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 10:55:50,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:55:50 BoogieIcfgContainer [2023-12-19 10:55:50,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 10:55:50,312 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 10:55:50,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 10:55:50,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 10:55:50,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 10:55:49" (1/3) ... [2023-12-19 10:55:50,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6986df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:55:50, skipping insertion in model container [2023-12-19 10:55:50,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 10:55:49" (2/3) ... [2023-12-19 10:55:50,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6986df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 10:55:50, skipping insertion in model container [2023-12-19 10:55:50,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 10:55:50" (3/3) ... [2023-12-19 10:55:50,317 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-62.i [2023-12-19 10:55:50,329 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 10:55:50,329 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 10:55:50,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 10:55:50,394 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;@64d7e879, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 10:55:50,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 10:55:50,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-19 10:55:50,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-19 10:55:50,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:55:50,407 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 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 10:55:50,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:55:50,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:55:50,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2091031871, now seen corresponding path program 1 times [2023-12-19 10:55:50,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:55:50,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314724449] [2023-12-19 10:55:50,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:55:50,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:55:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:50,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:55:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:55:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:50,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:55:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:50,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:55:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:50,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:55:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:50,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:55:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:50,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:55:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:50,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:55:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:50,600 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-19 10:55:50,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:55:50,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314724449] [2023-12-19 10:55:50,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314724449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:55:50,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:55:50,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 10:55:50,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960035330] [2023-12-19 10:55:50,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:55:50,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 10:55:50,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:55:50,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 10:55:50,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 10:55:50,627 INFO L87 Difference]: Start difference. First operand has 34 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 24 states have internal predecessors, (35), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 10:55:50,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:55:50,652 INFO L93 Difference]: Finished difference Result 65 states and 108 transitions. [2023-12-19 10:55:50,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 10:55:50,654 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2023-12-19 10:55:50,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:55:50,659 INFO L225 Difference]: With dead ends: 65 [2023-12-19 10:55:50,659 INFO L226 Difference]: Without dead ends: 32 [2023-12-19 10:55:50,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 10:55:50,664 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:55:50,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:55:50,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-12-19 10:55:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-12-19 10:55:50,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-19 10:55:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 46 transitions. [2023-12-19 10:55:50,697 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 46 transitions. Word has length 54 [2023-12-19 10:55:50,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:55:50,697 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 46 transitions. [2023-12-19 10:55:50,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-19 10:55:50,697 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2023-12-19 10:55:50,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-19 10:55:50,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:55:50,699 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 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 10:55:50,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 10:55:50,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:55:50,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:55:50,700 INFO L85 PathProgramCache]: Analyzing trace with hash -823135551, now seen corresponding path program 1 times [2023-12-19 10:55:50,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:55:50,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579357133] [2023-12-19 10:55:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:55:50,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:55:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:55:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:53,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:55:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:53,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:55:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:53,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:55:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:55:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:53,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:55:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:55:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:53,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:55:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:53,941 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-19 10:55:53,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:55:53,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579357133] [2023-12-19 10:55:53,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579357133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:55:53,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:55:53,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 10:55:53,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571152073] [2023-12-19 10:55:53,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:55:53,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 10:55:53,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:55:53,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 10:55:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-19 10:55:53,945 INFO L87 Difference]: Start difference. First operand 32 states and 46 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-19 10:55:54,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:55:54,393 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2023-12-19 10:55:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 10:55:54,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 54 [2023-12-19 10:55:54,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:55:54,394 INFO L225 Difference]: With dead ends: 44 [2023-12-19 10:55:54,394 INFO L226 Difference]: Without dead ends: 42 [2023-12-19 10:55:54,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2023-12-19 10:55:54,396 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 46 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 10:55:54,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 120 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 10:55:54,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-12-19 10:55:54,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2023-12-19 10:55:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-19 10:55:54,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions. [2023-12-19 10:55:54,401 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 58 transitions. Word has length 54 [2023-12-19 10:55:54,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:55:54,402 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 58 transitions. [2023-12-19 10:55:54,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-19 10:55:54,403 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-12-19 10:55:54,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-19 10:55:54,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:55:54,404 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:54,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 10:55:54,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:55:54,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:55:54,405 INFO L85 PathProgramCache]: Analyzing trace with hash -138978421, now seen corresponding path program 1 times [2023-12-19 10:55:54,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:55:54,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748659542] [2023-12-19 10:55:54,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:55:54,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:55:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:55:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:55:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:55:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:55:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:55:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:55:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:55:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:55:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-19 10:55:54,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:55:54,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748659542] [2023-12-19 10:55:54,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748659542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:55:54,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:55:54,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 10:55:54,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413647317] [2023-12-19 10:55:54,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:55:54,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 10:55:54,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:55:54,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 10:55:54,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 10:55:54,467 INFO L87 Difference]: Start difference. First operand 40 states and 58 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-19 10:55:54,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:55:54,498 INFO L93 Difference]: Finished difference Result 95 states and 136 transitions. [2023-12-19 10:55:54,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 10:55:54,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2023-12-19 10:55:54,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:55:54,500 INFO L225 Difference]: With dead ends: 95 [2023-12-19 10:55:54,501 INFO L226 Difference]: Without dead ends: 56 [2023-12-19 10:55:54,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 10:55:54,504 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 8 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:55:54,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 85 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:55:54,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-19 10:55:54,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2023-12-19 10:55:54,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-19 10:55:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2023-12-19 10:55:54,520 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 68 transitions. Word has length 56 [2023-12-19 10:55:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:55:54,521 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 68 transitions. [2023-12-19 10:55:54,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-19 10:55:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 68 transitions. [2023-12-19 10:55:54,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-19 10:55:54,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 10:55:54,525 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:54,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 10:55:54,526 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 10:55:54,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 10:55:54,526 INFO L85 PathProgramCache]: Analyzing trace with hash -81720119, now seen corresponding path program 1 times [2023-12-19 10:55:54,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 10:55:54,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007251260] [2023-12-19 10:55:54,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 10:55:54,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 10:55:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 10:55:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 10:55:54,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 10:55:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 10:55:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 10:55:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 10:55:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 10:55:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-19 10:55:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 10:55:54,631 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-19 10:55:54,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 10:55:54,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007251260] [2023-12-19 10:55:54,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007251260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 10:55:54,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 10:55:54,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 10:55:54,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136627248] [2023-12-19 10:55:54,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 10:55:54,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 10:55:54,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 10:55:54,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 10:55:54,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 10:55:54,634 INFO L87 Difference]: Start difference. First operand 48 states and 68 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-19 10:55:54,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 10:55:54,678 INFO L93 Difference]: Finished difference Result 89 states and 128 transitions. [2023-12-19 10:55:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 10:55:54,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 56 [2023-12-19 10:55:54,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 10:55:54,679 INFO L225 Difference]: With dead ends: 89 [2023-12-19 10:55:54,679 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 10:55:54,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 10:55:54,689 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 24 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 10:55:54,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 82 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 10:55:54,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 10:55:54,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 10:55:54,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 10:55:54,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 10:55:54,690 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2023-12-19 10:55:54,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 10:55:54,690 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 10:55:54,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-19 10:55:54,691 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 10:55:54,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 10:55:54,693 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 10:55:54,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 10:55:54,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 10:55:54,708 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 10:55:54,708 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 10:55:54,708 INFO L899 garLoopResultBuilder]: For program point L81(lines 69 82) no Hoare annotation was computed. [2023-12-19 10:55:54,709 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 10:55:54,709 INFO L902 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: true [2023-12-19 10:55:54,709 INFO L902 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: true [2023-12-19 10:55:54,709 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 48) no Hoare annotation was computed. [2023-12-19 10:55:54,709 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 52) no Hoare annotation was computed. [2023-12-19 10:55:54,709 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 40 52) no Hoare annotation was computed. [2023-12-19 10:55:54,709 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 67) no Hoare annotation was computed. [2023-12-19 10:55:54,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 10:55:54,712 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-19 10:55:54,712 INFO L902 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: true [2023-12-19 10:55:54,715 INFO L902 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: true [2023-12-19 10:55:54,715 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 49) no Hoare annotation was computed. [2023-12-19 10:55:54,715 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 68) no Hoare annotation was computed. [2023-12-19 10:55:54,715 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 10:55:54,715 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2023-12-19 10:55:54,716 INFO L902 garLoopResultBuilder]: At program point L95-2(lines 95 101) the Hoare annotation is: true [2023-12-19 10:55:54,716 INFO L899 garLoopResultBuilder]: For program point L95-3(lines 95 101) no Hoare annotation was computed. [2023-12-19 10:55:54,716 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-19 10:55:54,716 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 10:55:54,716 INFO L902 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: true [2023-12-19 10:55:54,716 INFO L902 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: true [2023-12-19 10:55:54,716 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 65) no Hoare annotation was computed. [2023-12-19 10:55:54,716 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 59) no Hoare annotation was computed. [2023-12-19 10:55:54,716 INFO L899 garLoopResultBuilder]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2023-12-19 10:55:54,716 INFO L902 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: true [2023-12-19 10:55:54,716 INFO L902 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: true [2023-12-19 10:55:54,716 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-19 10:55:54,716 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 10:55:54,716 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 10:55:54,717 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 10:55:54,717 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 10:55:54,720 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-19 10:55:54,722 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 10:55:54,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 10:55:54 BoogieIcfgContainer [2023-12-19 10:55:54,729 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 10:55:54,729 INFO L158 Benchmark]: Toolchain (without parser) took 5000.12ms. Allocated memory was 361.8MB in the beginning and 564.1MB in the end (delta: 202.4MB). Free memory was 310.6MB in the beginning and 295.0MB in the end (delta: 15.6MB). Peak memory consumption was 219.2MB. Max. memory is 8.0GB. [2023-12-19 10:55:54,730 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 205.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 10:55:54,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.63ms. Allocated memory is still 361.8MB. Free memory was 310.6MB in the beginning and 298.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 10:55:54,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.86ms. Allocated memory is still 361.8MB. Free memory was 298.3MB in the beginning and 296.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 10:55:54,730 INFO L158 Benchmark]: Boogie Preprocessor took 25.49ms. Allocated memory is still 361.8MB. Free memory was 296.0MB in the beginning and 293.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 10:55:54,730 INFO L158 Benchmark]: RCFGBuilder took 309.53ms. Allocated memory is still 361.8MB. Free memory was 293.7MB in the beginning and 278.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 10:55:54,730 INFO L158 Benchmark]: TraceAbstraction took 4416.65ms. Allocated memory was 361.8MB in the beginning and 564.1MB in the end (delta: 202.4MB). Free memory was 277.2MB in the beginning and 295.0MB in the end (delta: -17.8MB). Peak memory consumption was 185.6MB. Max. memory is 8.0GB. [2023-12-19 10:55:54,732 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 205.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.63ms. Allocated memory is still 361.8MB. Free memory was 310.6MB in the beginning and 298.3MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.86ms. Allocated memory is still 361.8MB. Free memory was 298.3MB in the beginning and 296.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.49ms. Allocated memory is still 361.8MB. Free memory was 296.0MB in the beginning and 293.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 309.53ms. Allocated memory is still 361.8MB. Free memory was 293.7MB in the beginning and 278.0MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4416.65ms. Allocated memory was 361.8MB in the beginning and 564.1MB in the end (delta: 202.4MB). Free memory was 277.2MB in the beginning and 295.0MB in the end (delta: -17.8MB). Peak memory consumption was 185.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 330 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 174 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 156 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=3, InterpolantAutomatonStates: 19, 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, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 41 PreInvPairs, 50 NumberOfFragments, 10 HoareAnnotationTreeSize, 41 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FormulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 1017 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 448/448 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-19 10:55:54,756 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...