/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal30.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:11:14,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:11:14,898 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-16 19:11:14,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:11:14,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:11:14,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:11:14,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:11:14,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:11:14,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:11:14,917 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:11:14,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:11:14,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:11:14,917 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:11:14,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:11:14,918 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:11:14,918 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:11:14,918 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:11:14,919 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:11:14,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:11:14,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:11:14,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:11:14,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:11:14,920 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:11:14,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:11:14,920 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:11:14,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:11:14,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:11:14,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:11:14,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:11:14,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:11:14,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:11:14,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:11:14,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:11:14,922 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:11:14,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:11:14,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:11:14,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:11:14,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:11:14,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:11:14,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:11:14,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:11:15,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:11:15,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:11:15,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:11:15,078 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:11:15,078 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:11:15,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal30.c [2023-12-16 19:11:16,072 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:11:16,497 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:11:16,498 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal30.c [2023-12-16 19:11:16,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a22a7b2d/d8e00c31c0324f728e98c67ab0ba6bbb/FLAG48b4bb07f [2023-12-16 19:11:16,555 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a22a7b2d/d8e00c31c0324f728e98c67ab0ba6bbb [2023-12-16 19:11:16,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:11:16,559 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:11:16,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:11:16,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:11:16,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:11:16,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:11:16" (1/1) ... [2023-12-16 19:11:16,564 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed4ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:16, skipping insertion in model container [2023-12-16 19:11:16,564 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:11:16" (1/1) ... [2023-12-16 19:11:16,683 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:11:16,942 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal30.c[1245,1258] [2023-12-16 19:11:17,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:11:17,821 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:11:17,829 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal30.c[1245,1258] [2023-12-16 19:11:18,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:11:18,507 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:11:18,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18 WrapperNode [2023-12-16 19:11:18,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:11:18,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:11:18,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:11:18,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:11:18,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:18,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:22,359 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45476 [2023-12-16 19:11:22,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:11:22,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:11:22,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:11:22,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:11:22,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:22,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:23,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:24,351 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-12-16 19:11:24,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:24,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:25,583 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:25,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:25,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:26,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:26,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:11:26,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:11:26,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:11:26,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:11:26,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (1/1) ... [2023-12-16 19:11:26,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:11:26,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:11:26,823 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) [2023-12-16 19:11:26,836 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 [2023-12-16 19:11:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:11:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:11:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 19:11:26,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:11:26,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:11:28,769 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:11:28,770 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:11:49,827 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:11:50,573 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:11:50,574 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:11:50,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:11:50 BoogieIcfgContainer [2023-12-16 19:11:50,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:11:50,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:11:50,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:11:50,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:11:50,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:11:16" (1/3) ... [2023-12-16 19:11:50,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77565c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:11:50, skipping insertion in model container [2023-12-16 19:11:50,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:18" (2/3) ... [2023-12-16 19:11:50,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77565c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:11:50, skipping insertion in model container [2023-12-16 19:11:50,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:11:50" (3/3) ... [2023-12-16 19:11:50,581 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal30.c [2023-12-16 19:11:50,593 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:11:50,593 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:11:50,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:11:50,710 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;@416f147, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:11:50,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:11:50,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 9873 states, 9871 states have (on average 1.66690304933644) internal successors, (16454), 9872 states have internal predecessors, (16454), 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) [2023-12-16 19:11:50,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-16 19:11:50,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:11:50,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:11:50,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:11:50,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:11:50,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2047801679, now seen corresponding path program 1 times [2023-12-16 19:11:50,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:11:50,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335901244] [2023-12-16 19:11:50,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:11:50,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:11:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:11:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:11:51,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:11:51,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335901244] [2023-12-16 19:11:51,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335901244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:11:51,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:11:51,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:11:51,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914062699] [2023-12-16 19:11:51,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:11:51,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:11:51,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:11:51,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:11:51,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:11:51,939 INFO L87 Difference]: Start difference. First operand has 9873 states, 9871 states have (on average 1.66690304933644) internal successors, (16454), 9872 states have internal predecessors, (16454), 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) Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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) [2023-12-16 19:11:52,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:11:52,293 INFO L93 Difference]: Finished difference Result 19619 states and 32699 transitions. [2023-12-16 19:11:52,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:11:52,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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) Word has length 134 [2023-12-16 19:11:52,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:11:52,433 INFO L225 Difference]: With dead ends: 19619 [2023-12-16 19:11:52,434 INFO L226 Difference]: Without dead ends: 9873 [2023-12-16 19:11:52,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:11:52,452 INFO L413 NwaCegarLoop]: 16447 mSDtfsCounter, 1 mSDsluCounter, 32889 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49336 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:11:52,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49336 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:11:52,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9873 states. [2023-12-16 19:11:52,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9873 to 9873. [2023-12-16 19:11:52,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9873 states, 9872 states have (on average 1.6665316045380876) internal successors, (16452), 9872 states have internal predecessors, (16452), 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) [2023-12-16 19:11:52,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9873 states to 9873 states and 16452 transitions. [2023-12-16 19:11:52,703 INFO L78 Accepts]: Start accepts. Automaton has 9873 states and 16452 transitions. Word has length 134 [2023-12-16 19:11:52,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:11:52,706 INFO L495 AbstractCegarLoop]: Abstraction has 9873 states and 16452 transitions. [2023-12-16 19:11:52,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 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) [2023-12-16 19:11:52,706 INFO L276 IsEmpty]: Start isEmpty. Operand 9873 states and 16452 transitions. [2023-12-16 19:11:52,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 19:11:52,714 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:11:52,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:11:52,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 19:11:52,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:11:52,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:11:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash 944383119, now seen corresponding path program 1 times [2023-12-16 19:11:52,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:11:52,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073020661] [2023-12-16 19:11:52,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:11:52,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:11:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:11:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:11:53,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:11:53,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073020661] [2023-12-16 19:11:53,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073020661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:11:53,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:11:53,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:11:53,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109897563] [2023-12-16 19:11:53,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:11:53,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:11:53,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:11:53,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:11:53,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:11:53,132 INFO L87 Difference]: Start difference. First operand 9873 states and 16452 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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) [2023-12-16 19:11:53,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:11:53,442 INFO L93 Difference]: Finished difference Result 19622 states and 32697 transitions. [2023-12-16 19:11:53,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:11:53,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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) Word has length 135 [2023-12-16 19:11:53,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:11:53,471 INFO L225 Difference]: With dead ends: 19622 [2023-12-16 19:11:53,471 INFO L226 Difference]: Without dead ends: 9876 [2023-12-16 19:11:53,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:11:53,485 INFO L413 NwaCegarLoop]: 16447 mSDtfsCounter, 1 mSDsluCounter, 32887 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 49334 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:11:53,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 49334 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:11:53,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9876 states. [2023-12-16 19:11:53,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9876 to 9875. [2023-12-16 19:11:53,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9875 states, 9874 states have (on average 1.6663965971237593) internal successors, (16454), 9874 states have internal predecessors, (16454), 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) [2023-12-16 19:11:53,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9875 states to 9875 states and 16454 transitions. [2023-12-16 19:11:53,655 INFO L78 Accepts]: Start accepts. Automaton has 9875 states and 16454 transitions. Word has length 135 [2023-12-16 19:11:53,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:11:53,656 INFO L495 AbstractCegarLoop]: Abstraction has 9875 states and 16454 transitions. [2023-12-16 19:11:53,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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) [2023-12-16 19:11:53,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9875 states and 16454 transitions. [2023-12-16 19:11:53,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-16 19:11:53,657 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:11:53,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:11:53,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 19:11:53,658 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:11:53,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:11:53,664 INFO L85 PathProgramCache]: Analyzing trace with hash -999326069, now seen corresponding path program 1 times [2023-12-16 19:11:53,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:11:53,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437801072] [2023-12-16 19:11:53,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:11:53,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:11:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:11:54,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:11:54,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:11:54,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437801072] [2023-12-16 19:11:54,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437801072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:11:54,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:11:54,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:11:54,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291103735] [2023-12-16 19:11:54,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:11:54,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:11:54,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:11:54,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:11:54,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:11:54,577 INFO L87 Difference]: Start difference. First operand 9875 states and 16454 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 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) [2023-12-16 19:11:58,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 19:11:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:11:59,970 INFO L93 Difference]: Finished difference Result 29432 states and 49041 transitions. [2023-12-16 19:11:59,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:11:59,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 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) Word has length 136 [2023-12-16 19:11:59,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:12:00,025 INFO L225 Difference]: With dead ends: 29432 [2023-12-16 19:12:00,025 INFO L226 Difference]: Without dead ends: 19684 [2023-12-16 19:12:00,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:12:00,042 INFO L413 NwaCegarLoop]: 16465 mSDtfsCounter, 81377 mSDsluCounter, 49105 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81377 SdHoareTripleChecker+Valid, 65570 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-16 19:12:00,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81377 Valid, 65570 Invalid, 330 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-16 19:12:00,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19684 states. [2023-12-16 19:12:00,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19684 to 9937. [2023-12-16 19:12:00,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9937 states, 9936 states have (on average 1.6662640901771337) internal successors, (16556), 9936 states have internal predecessors, (16556), 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) [2023-12-16 19:12:00,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9937 states to 9937 states and 16556 transitions. [2023-12-16 19:12:00,295 INFO L78 Accepts]: Start accepts. Automaton has 9937 states and 16556 transitions. Word has length 136 [2023-12-16 19:12:00,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:12:00,297 INFO L495 AbstractCegarLoop]: Abstraction has 9937 states and 16556 transitions. [2023-12-16 19:12:00,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 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) [2023-12-16 19:12:00,299 INFO L276 IsEmpty]: Start isEmpty. Operand 9937 states and 16556 transitions. [2023-12-16 19:12:00,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 19:12:00,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:12:00,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:12:00,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 19:12:00,305 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:12:00,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:12:00,305 INFO L85 PathProgramCache]: Analyzing trace with hash 685570485, now seen corresponding path program 1 times [2023-12-16 19:12:00,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:12:00,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378836603] [2023-12-16 19:12:00,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:12:00,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:12:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:12:00,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:12:00,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:12:00,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378836603] [2023-12-16 19:12:00,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378836603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:12:00,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:12:00,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 19:12:00,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691371167] [2023-12-16 19:12:00,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:12:00,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:12:00,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:12:00,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:12:00,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:12:00,837 INFO L87 Difference]: Start difference. First operand 9937 states and 16556 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 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) [2023-12-16 19:12:05,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 19:12:06,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:12:06,961 INFO L93 Difference]: Finished difference Result 39173 states and 65273 transitions. [2023-12-16 19:12:06,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 19:12:06,962 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 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) Word has length 137 [2023-12-16 19:12:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:12:06,999 INFO L225 Difference]: With dead ends: 39173 [2023-12-16 19:12:06,999 INFO L226 Difference]: Without dead ends: 29425 [2023-12-16 19:12:07,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2023-12-16 19:12:07,011 INFO L413 NwaCegarLoop]: 16467 mSDtfsCounter, 162395 mSDsluCounter, 82028 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162395 SdHoareTripleChecker+Valid, 98495 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-16 19:12:07,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162395 Valid, 98495 Invalid, 515 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 514 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2023-12-16 19:12:07,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29425 states. [2023-12-16 19:12:07,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29425 to 9940. [2023-12-16 19:12:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9940 states, 9939 states have (on average 1.6661635979474796) internal successors, (16560), 9939 states have internal predecessors, (16560), 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) [2023-12-16 19:12:07,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9940 states to 9940 states and 16560 transitions. [2023-12-16 19:12:07,227 INFO L78 Accepts]: Start accepts. Automaton has 9940 states and 16560 transitions. Word has length 137 [2023-12-16 19:12:07,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:12:07,227 INFO L495 AbstractCegarLoop]: Abstraction has 9940 states and 16560 transitions. [2023-12-16 19:12:07,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 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) [2023-12-16 19:12:07,227 INFO L276 IsEmpty]: Start isEmpty. Operand 9940 states and 16560 transitions. [2023-12-16 19:12:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-16 19:12:07,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:12:07,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:12:07,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 19:12:07,228 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:12:07,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:12:07,229 INFO L85 PathProgramCache]: Analyzing trace with hash 292543475, now seen corresponding path program 1 times [2023-12-16 19:12:07,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:12:07,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493616285] [2023-12-16 19:12:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:12:07,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:12:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:12:08,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 19:12:08,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:12:08,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493616285] [2023-12-16 19:12:08,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493616285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:12:08,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:12:08,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 19:12:08,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232654609] [2023-12-16 19:12:08,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:12:08,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 19:12:08,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:12:08,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 19:12:08,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 19:12:08,123 INFO L87 Difference]: Start difference. First operand 9940 states and 16560 transitions. Second operand has 9 states, 9 states have (on average 15.222222222222221) internal successors, (137), 8 states have internal predecessors, (137), 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) Received shutdown request... [2023-12-16 19:12:12,892 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 19:12:13,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 19:12:13,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 19:12:13,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-12-16 19:12:13,578 INFO L413 NwaCegarLoop]: 30167 mSDtfsCounter, 90372 mSDsluCounter, 46206 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90372 SdHoareTripleChecker+Valid, 76373 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-16 19:12:13,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90372 Valid, 76373 Invalid, 400 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 398 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-12-16 19:12:13,579 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 19:12:13,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 19:12:13,580 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (9940states) and FLOYD_HOARE automaton (currently 9 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (27206 states constructed, input type IntersectNwa). [2023-12-16 19:12:13,583 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 19:12:13,585 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 19:12:13,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:12:13 BoogieIcfgContainer [2023-12-16 19:12:13,587 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 19:12:13,587 INFO L158 Benchmark]: Toolchain (without parser) took 57028.48ms. Allocated memory was 226.5MB in the beginning and 5.8GB in the end (delta: 5.5GB). Free memory was 163.8MB in the beginning and 4.5GB in the end (delta: -4.3GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 19:12:13,587 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 178.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:12:13,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1950.17ms. Allocated memory was 226.5MB in the beginning and 658.5MB in the end (delta: 432.0MB). Free memory was 163.8MB in the beginning and 427.6MB in the end (delta: -263.8MB). Peak memory consumption was 237.9MB. Max. memory is 8.0GB. [2023-12-16 19:12:13,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 3849.89ms. Allocated memory was 658.5MB in the beginning and 4.3GB in the end (delta: 3.6GB). Free memory was 427.6MB in the beginning and 3.5GB in the end (delta: -3.1GB). Peak memory consumption was 549.5MB. Max. memory is 8.0GB. [2023-12-16 19:12:13,599 INFO L158 Benchmark]: Boogie Preprocessor took 4368.37ms. Allocated memory is still 4.3GB. Free memory was 3.5GB in the beginning and 3.3GB in the end (delta: 238.6MB). Peak memory consumption was 298.8MB. Max. memory is 8.0GB. [2023-12-16 19:12:13,600 INFO L158 Benchmark]: RCFGBuilder took 23842.90ms. Allocated memory was 4.3GB in the beginning and 5.8GB in the end (delta: 1.5GB). Free memory was 3.3GB in the beginning and 4.6GB in the end (delta: -1.3GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 19:12:13,600 INFO L158 Benchmark]: TraceAbstraction took 23011.09ms. Allocated memory is still 5.8GB. Free memory was 4.6GB in the beginning and 4.5GB in the end (delta: 137.2MB). Peak memory consumption was 647.4MB. Max. memory is 8.0GB. [2023-12-16 19:12:13,602 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 178.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1950.17ms. Allocated memory was 226.5MB in the beginning and 658.5MB in the end (delta: 432.0MB). Free memory was 163.8MB in the beginning and 427.6MB in the end (delta: -263.8MB). Peak memory consumption was 237.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 3849.89ms. Allocated memory was 658.5MB in the beginning and 4.3GB in the end (delta: 3.6GB). Free memory was 427.6MB in the beginning and 3.5GB in the end (delta: -3.1GB). Peak memory consumption was 549.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 4368.37ms. Allocated memory is still 4.3GB. Free memory was 3.5GB in the beginning and 3.3GB in the end (delta: 238.6MB). Peak memory consumption was 298.8MB. Max. memory is 8.0GB. * RCFGBuilder took 23842.90ms. Allocated memory was 4.3GB in the beginning and 5.8GB in the end (delta: 1.5GB). Free memory was 3.3GB in the beginning and 4.6GB in the end (delta: -1.3GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * TraceAbstraction took 23011.09ms. Allocated memory is still 5.8GB. Free memory was 4.6GB in the beginning and 4.5GB in the end (delta: 137.2MB). Peak memory consumption was 647.4MB. 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 - TimeoutResultAtElement [Line: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (9940states) and FLOYD_HOARE automaton (currently 9 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (27206 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9873 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 334146 SdHoareTripleChecker+Valid, 15.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 334146 mSDsluCounter, 339108 SdHoareTripleChecker+Invalid, 14.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 243115 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1269 IncrementalHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 95993 mSDtfsCounter, 1269 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9940occurred in iteration=4, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 29233 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 679 NumberOfCodeBlocks, 679 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 674 ConstructedInterpolants, 0 QuantifiedInterpolants, 2277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown