/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-88.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 22:27:09,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 22:27:09,274 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 22:27:09,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 22:27:09,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 22:27:09,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 22:27:09,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 22:27:09,302 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 22:27:09,302 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 22:27:09,305 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 22:27:09,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 22:27:09,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 22:27:09,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 22:27:09,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 22:27:09,307 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 22:27:09,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 22:27:09,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 22:27:09,307 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 22:27:09,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 22:27:09,309 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 22:27:09,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 22:27:09,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 22:27:09,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 22:27:09,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 22:27:09,309 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 22:27:09,310 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 22:27:09,310 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 22:27:09,310 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 22:27:09,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 22:27:09,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 22:27:09,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 22:27:09,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 22:27:09,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:27:09,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 22:27:09,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 22:27:09,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 22:27:09,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 22:27:09,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 22:27:09,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 22:27:09,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 22:27:09,312 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 22:27:09,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 22:27:09,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 22:27:09,313 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 22:27:09,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 22:27:09,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 22:27:09,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 22:27:09,495 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 22:27:09,496 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 22:27:09,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-88.i [2023-12-20 22:27:10,495 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 22:27:10,617 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 22:27:10,619 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-88.i [2023-12-20 22:27:10,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e1d1056/891795fedac64b8291b0311b09f8d930/FLAG39869f505 [2023-12-20 22:27:10,635 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e1d1056/891795fedac64b8291b0311b09f8d930 [2023-12-20 22:27:10,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 22:27:10,638 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 22:27:10,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 22:27:10,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 22:27:10,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 22:27:10,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c5489c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10, skipping insertion in model container [2023-12-20 22:27:10,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,669 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 22:27:10,780 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-88.i[916,929] [2023-12-20 22:27:10,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:27:10,823 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 22:27:10,831 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-88.i[916,929] [2023-12-20 22:27:10,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 22:27:10,871 INFO L206 MainTranslator]: Completed translation [2023-12-20 22:27:10,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10 WrapperNode [2023-12-20 22:27:10,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 22:27:10,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 22:27:10,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 22:27:10,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 22:27:10,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,919 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2023-12-20 22:27:10,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 22:27:10,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 22:27:10,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 22:27:10,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 22:27:10,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,936 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,954 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 22:27:10,954 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,965 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 22:27:10,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 22:27:10,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 22:27:10,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 22:27:10,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (1/1) ... [2023-12-20 22:27:10,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 22:27:10,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 22:27:10,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 22:27:11,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 22:27:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 22:27:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 22:27:11,029 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 22:27:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 22:27:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 22:27:11,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 22:27:11,075 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 22:27:11,077 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 22:27:11,215 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 22:27:11,279 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 22:27:11,279 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 22:27:11,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:27:11 BoogieIcfgContainer [2023-12-20 22:27:11,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 22:27:11,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 22:27:11,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 22:27:11,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 22:27:11,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 10:27:10" (1/3) ... [2023-12-20 22:27:11,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126d1601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:27:11, skipping insertion in model container [2023-12-20 22:27:11,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 10:27:10" (2/3) ... [2023-12-20 22:27:11,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@126d1601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 10:27:11, skipping insertion in model container [2023-12-20 22:27:11,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 10:27:11" (3/3) ... [2023-12-20 22:27:11,285 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-88.i [2023-12-20 22:27:11,308 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 22:27:11,309 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 22:27:11,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 22:27:11,354 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;@5d8044fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 22:27:11,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 22:27:11,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-20 22:27:11,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 22:27:11,367 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:27:11,368 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:27:11,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:27:11,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:27:11,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1284865359, now seen corresponding path program 1 times [2023-12-20 22:27:11,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:27:11,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045385702] [2023-12-20 22:27:11,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:27:11,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:27:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:27:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:27:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:27:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:27:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:27:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:27:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:27:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 22:27:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:27:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 22:27:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:27:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 22:27:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:27:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 22:27:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:27:11,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 22:27:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 22:27:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 22:27:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-20 22:27:11,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:27:11,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045385702] [2023-12-20 22:27:11,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045385702] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:27:11,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:27:11,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 22:27:11,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791275926] [2023-12-20 22:27:11,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:27:11,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 22:27:11,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:27:11,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 22:27:11,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:27:11,667 INFO L87 Difference]: Start difference. First operand has 46 states, 25 states have (on average 1.4) internal successors, (35), 26 states have internal predecessors, (35), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-20 22:27:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:27:11,721 INFO L93 Difference]: Finished difference Result 89 states and 158 transitions. [2023-12-20 22:27:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 22:27:11,723 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2023-12-20 22:27:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:27:11,729 INFO L225 Difference]: With dead ends: 89 [2023-12-20 22:27:11,729 INFO L226 Difference]: Without dead ends: 44 [2023-12-20 22:27:11,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 22:27:11,736 INFO L413 NwaCegarLoop]: 63 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, 63 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 22:27:11,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 22:27:11,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-12-20 22:27:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-12-20 22:27:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-20 22:27:11,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 66 transitions. [2023-12-20 22:27:11,783 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 66 transitions. Word has length 109 [2023-12-20 22:27:11,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:27:11,784 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 66 transitions. [2023-12-20 22:27:11,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-20 22:27:11,785 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 66 transitions. [2023-12-20 22:27:11,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 22:27:11,789 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:27:11,789 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:27:11,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 22:27:11,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:27:11,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:27:11,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1658820239, now seen corresponding path program 1 times [2023-12-20 22:27:11,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:27:11,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992317395] [2023-12-20 22:27:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:27:11,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:27:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:27:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:27:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:27:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:27:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:27:12,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:27:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:27:12,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 22:27:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:27:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 22:27:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:27:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 22:27:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:12,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:27:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:13,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 22:27:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:13,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:27:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 22:27:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:13,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 22:27:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:13,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 22:27:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:13,016 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-20 22:27:13,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:27:13,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992317395] [2023-12-20 22:27:13,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992317395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:27:13,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:27:13,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 22:27:13,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830820740] [2023-12-20 22:27:13,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:27:13,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 22:27:13,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:27:13,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 22:27:13,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 22:27:13,022 INFO L87 Difference]: Start difference. First operand 44 states and 66 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-20 22:27:13,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:27:13,358 INFO L93 Difference]: Finished difference Result 110 states and 158 transitions. [2023-12-20 22:27:13,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 22:27:13,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2023-12-20 22:27:13,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:27:13,361 INFO L225 Difference]: With dead ends: 110 [2023-12-20 22:27:13,361 INFO L226 Difference]: Without dead ends: 67 [2023-12-20 22:27:13,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 22:27:13,364 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 94 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 22:27:13,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 111 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 22:27:13,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-20 22:27:13,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 51. [2023-12-20 22:27:13,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-20 22:27:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2023-12-20 22:27:13,389 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 109 [2023-12-20 22:27:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:27:13,390 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2023-12-20 22:27:13,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-20 22:27:13,390 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2023-12-20 22:27:13,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 22:27:13,395 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 22:27:13,395 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 22:27:13,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 22:27:13,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 22:27:13,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 22:27:13,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1658760657, now seen corresponding path program 1 times [2023-12-20 22:27:13,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 22:27:13,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428882258] [2023-12-20 22:27:13,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 22:27:13,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 22:27:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 22:27:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-20 22:27:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-20 22:27:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-20 22:27:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-20 22:27:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-20 22:27:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-20 22:27:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-12-20 22:27:16,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-20 22:27:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-20 22:27:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-20 22:27:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-20 22:27:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-20 22:27:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-20 22:27:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-20 22:27:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-20 22:27:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-20 22:27:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-20 22:27:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 22:27:16,340 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-20 22:27:16,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 22:27:16,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428882258] [2023-12-20 22:27:16,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428882258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 22:27:16,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 22:27:16,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 22:27:16,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671906356] [2023-12-20 22:27:16,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 22:27:16,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 22:27:16,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 22:27:16,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 22:27:16,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 22:27:16,342 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:27:16,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 22:27:16,821 INFO L93 Difference]: Finished difference Result 62 states and 87 transitions. [2023-12-20 22:27:16,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 22:27:16,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2023-12-20 22:27:16,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 22:27:16,822 INFO L225 Difference]: With dead ends: 62 [2023-12-20 22:27:16,822 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 22:27:16,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-12-20 22:27:16,823 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 23 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 22:27:16,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 262 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 22:27:16,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 22:27:16,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 22:27:16,824 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) [2023-12-20 22:27:16,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 22:27:16,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2023-12-20 22:27:16,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 22:27:16,825 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 22:27:16,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-20 22:27:16,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 22:27:16,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 22:27:16,827 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 22:27:16,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 22:27:16,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 22:27:16,979 INFO L899 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2023-12-20 22:27:16,980 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,980 INFO L895 garLoopResultBuilder]: At program point L89-1(line 89) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,980 INFO L899 garLoopResultBuilder]: For program point L56-1(lines 56 58) no Hoare annotation was computed. [2023-12-20 22:27:16,980 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-20 22:27:16,980 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-20 22:27:16,980 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-12-20 22:27:16,980 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-20 22:27:16,980 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,980 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,980 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 52) no Hoare annotation was computed. [2023-12-20 22:27:16,981 INFO L895 garLoopResultBuilder]: At program point L110-2(lines 110 116) the Hoare annotation is: (and (<= ~var_1_7~0 127) (<= ~var_1_1~0 ~var_1_7~0)) [2023-12-20 22:27:16,981 INFO L899 garLoopResultBuilder]: For program point L44-1(lines 43 68) no Hoare annotation was computed. [2023-12-20 22:27:16,981 INFO L899 garLoopResultBuilder]: For program point L110-3(lines 110 116) no Hoare annotation was computed. [2023-12-20 22:27:16,981 INFO L899 garLoopResultBuilder]: For program point L90(line 90) no Hoare annotation was computed. [2023-12-20 22:27:16,981 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-20 22:27:16,981 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,981 INFO L895 garLoopResultBuilder]: At program point L86-1(line 86) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,981 INFO L899 garLoopResultBuilder]: For program point L53-1(lines 43 68) no Hoare annotation was computed. [2023-12-20 22:27:16,981 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-12-20 22:27:16,982 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 49) no Hoare annotation was computed. [2023-12-20 22:27:16,982 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (and (<= ~var_1_7~0 127) (<= ~var_1_1~0 ~var_1_7~0)) [2023-12-20 22:27:16,982 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (and (<= ~var_1_7~0 127) (<= ~var_1_1~0 ~var_1_7~0)) [2023-12-20 22:27:16,982 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 22:27:16,982 INFO L895 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,982 INFO L895 garLoopResultBuilder]: At program point L95-1(line 95) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,982 INFO L899 garLoopResultBuilder]: For program point L87(line 87) no Hoare annotation was computed. [2023-12-20 22:27:16,982 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,982 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,982 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-12-20 22:27:16,982 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 22:27:16,982 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (<= ~var_1_7~0 127) (<= ~var_1_1~0 ~var_1_7~0)) [2023-12-20 22:27:16,983 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (and (<= ~var_1_7~0 127) (<= ~var_1_1~0 ~var_1_7~0)) [2023-12-20 22:27:16,983 INFO L899 garLoopResultBuilder]: For program point L96(lines 69 97) no Hoare annotation was computed. [2023-12-20 22:27:16,983 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2023-12-20 22:27:16,983 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,983 INFO L895 garLoopResultBuilder]: At program point L92-1(line 92) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,983 INFO L899 garLoopResultBuilder]: For program point L84(line 84) no Hoare annotation was computed. [2023-12-20 22:27:16,983 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,983 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (<= ~var_1_7~0 127) [2023-12-20 22:27:16,983 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 68) no Hoare annotation was computed. [2023-12-20 22:27:16,983 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-12-20 22:27:16,983 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-20 22:27:16,983 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-20 22:27:16,984 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-20 22:27:16,984 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-20 22:27:16,986 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-20 22:27:16,987 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 22:27:16,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 10:27:16 BoogieIcfgContainer [2023-12-20 22:27:16,994 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 22:27:16,994 INFO L158 Benchmark]: Toolchain (without parser) took 6356.82ms. Allocated memory was 199.2MB in the beginning and 454.0MB in the end (delta: 254.8MB). Free memory was 145.9MB in the beginning and 201.7MB in the end (delta: -55.8MB). Peak memory consumption was 200.2MB. Max. memory is 8.0GB. [2023-12-20 22:27:16,995 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 199.2MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 22:27:16,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.65ms. Allocated memory is still 199.2MB. Free memory was 145.5MB in the beginning and 133.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-20 22:27:16,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.89ms. Allocated memory is still 199.2MB. Free memory was 133.0MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 22:27:16,995 INFO L158 Benchmark]: Boogie Preprocessor took 52.46ms. Allocated memory is still 199.2MB. Free memory was 130.8MB in the beginning and 128.4MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-20 22:27:16,996 INFO L158 Benchmark]: RCFGBuilder took 305.89ms. Allocated memory was 199.2MB in the beginning and 332.4MB in the end (delta: 133.2MB). Free memory was 128.4MB in the beginning and 300.2MB in the end (delta: -171.8MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. [2023-12-20 22:27:16,996 INFO L158 Benchmark]: TraceAbstraction took 5713.13ms. Allocated memory was 332.4MB in the beginning and 454.0MB in the end (delta: 121.6MB). Free memory was 299.7MB in the beginning and 201.7MB in the end (delta: 98.0MB). Peak memory consumption was 219.6MB. Max. memory is 8.0GB. [2023-12-20 22:27:16,997 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 199.2MB. Free memory is still 147.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 233.65ms. Allocated memory is still 199.2MB. Free memory was 145.5MB in the beginning and 133.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.89ms. Allocated memory is still 199.2MB. Free memory was 133.0MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 52.46ms. Allocated memory is still 199.2MB. Free memory was 130.8MB in the beginning and 128.4MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 305.89ms. Allocated memory was 199.2MB in the beginning and 332.4MB in the end (delta: 133.2MB). Free memory was 128.4MB in the beginning and 300.2MB in the end (delta: -171.8MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. * TraceAbstraction took 5713.13ms. Allocated memory was 332.4MB in the beginning and 454.0MB in the end (delta: 121.6MB). Free memory was 299.7MB in the beginning and 201.7MB in the end (delta: 98.0MB). Peak memory consumption was 219.6MB. 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, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 3, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 436 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 241 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 267 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 195 mSDtfsCounter, 267 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 77 PreInvPairs, 101 NumberOfFragments, 78 HoareAnnotationTreeSize, 77 FormulaSimplifications, 927 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FormulaSimplificationsInter, 1238 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 327 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 324 ConstructedInterpolants, 0 QuantifiedInterpolants, 1679 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1836/1836 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: 110]: Loop Invariant Derived loop invariant: ((var_1_7 <= 127) && (var_1_1 <= var_1_7)) RESULT: Ultimate proved your program to be correct! [2023-12-20 22:27:17,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...