/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 17:45:49,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 17:45:49,158 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 17:45:49,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 17:45:49,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 17:45:49,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 17:45:49,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 17:45:49,185 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 17:45:49,185 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 17:45:49,188 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 17:45:49,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 17:45:49,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 17:45:49,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 17:45:49,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 17:45:49,190 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 17:45:49,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 17:45:49,190 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 17:45:49,191 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 17:45:49,191 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 17:45:49,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 17:45:49,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 17:45:49,191 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 17:45:49,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 17:45:49,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 17:45:49,192 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 17:45:49,192 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 17:45:49,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 17:45:49,192 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 17:45:49,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 17:45:49,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 17:45:49,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 17:45:49,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 17:45:49,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 17:45:49,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 17:45:49,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 17:45:49,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 17:45:49,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 17:45:49,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 17:45:49,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 17:45:49,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 17:45:49,195 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 17:45:49,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 17:45:49,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 17:45:49,195 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 17:45:49,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 17:45:49,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 17:45:49,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 17:45:49,383 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 17:45:49,383 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 17:45:49,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i [2023-12-18 17:45:50,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 17:45:50,552 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 17:45:50,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i [2023-12-18 17:45:50,558 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/943088e19/cdc8dedbdbce4429af89d2ec957069c8/FLAG6f6bfad93 [2023-12-18 17:45:50,574 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/943088e19/cdc8dedbdbce4429af89d2ec957069c8 [2023-12-18 17:45:50,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 17:45:50,577 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 17:45:50,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 17:45:50,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 17:45:50,582 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 17:45:50,582 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,583 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d14ecca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50, skipping insertion in model container [2023-12-18 17:45:50,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,598 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 17:45:50,713 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i[814,827] [2023-12-18 17:45:50,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 17:45:50,728 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 17:45:50,736 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_assert_loop_dep.i[814,827] [2023-12-18 17:45:50,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 17:45:50,748 INFO L206 MainTranslator]: Completed translation [2023-12-18 17:45:50,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50 WrapperNode [2023-12-18 17:45:50,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 17:45:50,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 17:45:50,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 17:45:50,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 17:45:50,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,772 INFO L138 Inliner]: procedures = 15, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2023-12-18 17:45:50,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 17:45:50,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 17:45:50,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 17:45:50,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 17:45:50,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,780 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,788 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2023-12-18 17:45:50,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,788 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,793 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,793 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 17:45:50,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 17:45:50,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 17:45:50,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 17:45:50,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (1/1) ... [2023-12-18 17:45:50,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 17:45:50,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:45:50,836 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) [2023-12-18 17:45:50,872 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 [2023-12-18 17:45:50,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 17:45:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 17:45:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-18 17:45:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-18 17:45:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-18 17:45:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-18 17:45:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 17:45:50,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 17:45:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-18 17:45:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-18 17:45:50,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-18 17:45:50,942 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 17:45:50,946 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 17:45:51,059 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 17:45:51,086 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 17:45:51,086 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-18 17:45:51,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:45:51 BoogieIcfgContainer [2023-12-18 17:45:51,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 17:45:51,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 17:45:51,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 17:45:51,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 17:45:51,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 05:45:50" (1/3) ... [2023-12-18 17:45:51,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b6f34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:45:51, skipping insertion in model container [2023-12-18 17:45:51,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 05:45:50" (2/3) ... [2023-12-18 17:45:51,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b6f34f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:45:51, skipping insertion in model container [2023-12-18 17:45:51,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:45:51" (3/3) ... [2023-12-18 17:45:51,092 INFO L112 eAbstractionObserver]: Analyzing ICFG array_assert_loop_dep.i [2023-12-18 17:45:51,104 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 17:45:51,105 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-18 17:45:51,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 17:45:51,154 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;@4dcd4e87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 17:45:51,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-18 17:45:51,158 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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) [2023-12-18 17:45:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-18 17:45:51,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:45:51,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-18 17:45:51,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:45:51,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:45:51,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1968117311, now seen corresponding path program 1 times [2023-12-18 17:45:51,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:45:51,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450875490] [2023-12-18 17:45:51,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:45:51,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:45:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:45:51,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:51,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:45:51,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450875490] [2023-12-18 17:45:51,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450875490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 17:45:51,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 17:45:51,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-18 17:45:51,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2793173] [2023-12-18 17:45:51,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 17:45:51,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-18 17:45:51,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:45:51,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-18 17:45:51,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 17:45:51,371 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-12-18 17:45:51,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:45:51,421 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2023-12-18 17:45:51,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-18 17:45:51,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-12-18 17:45:51,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:45:51,427 INFO L225 Difference]: With dead ends: 30 [2023-12-18 17:45:51,427 INFO L226 Difference]: Without dead ends: 18 [2023-12-18 17:45:51,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-18 17:45:51,433 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:45:51,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 12 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:45:51,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-12-18 17:45:51,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2023-12-18 17:45:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2023-12-18 17:45:51,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2023-12-18 17:45:51,457 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 6 [2023-12-18 17:45:51,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:45:51,457 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2023-12-18 17:45:51,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-12-18 17:45:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2023-12-18 17:45:51,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-18 17:45:51,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:45:51,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-12-18 17:45:51,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-18 17:45:51,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:45:51,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:45:51,459 INFO L85 PathProgramCache]: Analyzing trace with hash 369958735, now seen corresponding path program 1 times [2023-12-18 17:45:51,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:45:51,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880866657] [2023-12-18 17:45:51,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:45:51,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:45:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:45:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:51,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:45:51,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880866657] [2023-12-18 17:45:51,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880866657] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:45:51,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386682115] [2023-12-18 17:45:51,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:45:51,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:45:51,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:45:51,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 17:45:51,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-18 17:45:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:45:51,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-18 17:45:51,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:45:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:51,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:45:51,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:51,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386682115] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:45:51,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:45:51,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-12-18 17:45:51,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125087742] [2023-12-18 17:45:51,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:45:51,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 17:45:51,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:45:51,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 17:45:51,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-18 17:45:51,690 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-12-18 17:45:51,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:45:51,758 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2023-12-18 17:45:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 17:45:51,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 7 [2023-12-18 17:45:51,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:45:51,759 INFO L225 Difference]: With dead ends: 48 [2023-12-18 17:45:51,760 INFO L226 Difference]: Without dead ends: 36 [2023-12-18 17:45:51,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-18 17:45:51,761 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:45:51,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 22 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:45:51,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-12-18 17:45:51,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 23. [2023-12-18 17:45:51,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2023-12-18 17:45:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-12-18 17:45:51,770 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 7 [2023-12-18 17:45:51,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:45:51,770 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-12-18 17:45:51,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-12-18 17:45:51,770 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-12-18 17:45:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-18 17:45:51,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:45:51,770 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2023-12-18 17:45:51,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-18 17:45:51,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:45:51,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:45:51,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:45:51,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1697063615, now seen corresponding path program 2 times [2023-12-18 17:45:51,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:45:51,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536133127] [2023-12-18 17:45:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:45:51,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:45:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:45:52,084 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:52,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:45:52,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536133127] [2023-12-18 17:45:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536133127] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:45:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107166379] [2023-12-18 17:45:52,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-18 17:45:52,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:45:52,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:45:52,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 17:45:52,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-18 17:45:52,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-18 17:45:52,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:45:52,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-18 17:45:52,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:45:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:52,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:45:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:52,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107166379] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:45:52,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:45:52,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-12-18 17:45:52,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087514792] [2023-12-18 17:45:52,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:45:52,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-18 17:45:52,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:45:52,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-18 17:45:52,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-18 17:45:52,187 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2023-12-18 17:45:52,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:45:52,250 INFO L93 Difference]: Finished difference Result 101 states and 119 transitions. [2023-12-18 17:45:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-18 17:45:52,250 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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 10 [2023-12-18 17:45:52,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:45:52,252 INFO L225 Difference]: With dead ends: 101 [2023-12-18 17:45:52,252 INFO L226 Difference]: Without dead ends: 84 [2023-12-18 17:45:52,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-18 17:45:52,253 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 133 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 17:45:52,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 46 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 17:45:52,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-18 17:45:52,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 44. [2023-12-18 17:45:52,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.186046511627907) internal successors, (51), 43 states have internal predecessors, (51), 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) [2023-12-18 17:45:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2023-12-18 17:45:52,259 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 10 [2023-12-18 17:45:52,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:45:52,259 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2023-12-18 17:45:52,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2023-12-18 17:45:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2023-12-18 17:45:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-18 17:45:52,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:45:52,260 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2023-12-18 17:45:52,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-18 17:45:52,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-12-18 17:45:52,465 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:45:52,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:45:52,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1334574463, now seen corresponding path program 3 times [2023-12-18 17:45:52,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:45:52,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303859250] [2023-12-18 17:45:52,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:45:52,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:45:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:45:52,700 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:52,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:45:52,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303859250] [2023-12-18 17:45:52,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303859250] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:45:52,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033853404] [2023-12-18 17:45:52,704 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-18 17:45:52,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:45:52,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:45:52,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 17:45:52,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-18 17:45:52,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-18 17:45:52,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:45:52,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-18 17:45:52,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:45:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:52,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:45:52,946 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:52,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033853404] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:45:52,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:45:52,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-12-18 17:45:52,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61508648] [2023-12-18 17:45:52,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:45:52,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-18 17:45:52,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:45:52,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-18 17:45:52,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-12-18 17:45:52,949 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 25 states, 25 states have (on average 1.2) internal successors, (30), 24 states have internal predecessors, (30), 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) [2023-12-18 17:45:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:45:53,097 INFO L93 Difference]: Finished difference Result 212 states and 248 transitions. [2023-12-18 17:45:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-18 17:45:53,098 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.2) internal successors, (30), 24 states have internal predecessors, (30), 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 16 [2023-12-18 17:45:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:45:53,100 INFO L225 Difference]: With dead ends: 212 [2023-12-18 17:45:53,100 INFO L226 Difference]: Without dead ends: 180 [2023-12-18 17:45:53,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-12-18 17:45:53,101 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 321 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-18 17:45:53,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 94 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-18 17:45:53,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-18 17:45:53,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 86. [2023-12-18 17:45:53,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 85 states have internal predecessors, (99), 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) [2023-12-18 17:45:53,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 99 transitions. [2023-12-18 17:45:53,109 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 99 transitions. Word has length 16 [2023-12-18 17:45:53,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:45:53,109 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 99 transitions. [2023-12-18 17:45:53,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.2) internal successors, (30), 24 states have internal predecessors, (30), 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) [2023-12-18 17:45:53,109 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 99 transitions. [2023-12-18 17:45:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-18 17:45:53,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:45:53,109 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1] [2023-12-18 17:45:53,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-18 17:45:53,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:45:53,318 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:45:53,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:45:53,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2075884801, now seen corresponding path program 4 times [2023-12-18 17:45:53,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:45:53,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681214350] [2023-12-18 17:45:53,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:45:53,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:45:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:45:53,752 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:53,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:45:53,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681214350] [2023-12-18 17:45:53,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681214350] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:45:53,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210821565] [2023-12-18 17:45:53,753 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-18 17:45:53,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:45:53,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:45:53,754 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 17:45:53,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-18 17:45:53,829 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-18 17:45:53,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:45:53,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-18 17:45:53,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:45:53,882 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:53,882 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:45:54,441 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:54,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210821565] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:45:54,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:45:54,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-12-18 17:45:54,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095006137] [2023-12-18 17:45:54,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:45:54,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-18 17:45:54,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:45:54,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-18 17:45:54,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-12-18 17:45:54,444 INFO L87 Difference]: Start difference. First operand 86 states and 99 transitions. Second operand has 49 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 48 states have internal predecessors, (54), 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) [2023-12-18 17:45:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:45:54,858 INFO L93 Difference]: Finished difference Result 434 states and 506 transitions. [2023-12-18 17:45:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-12-18 17:45:54,858 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 48 states have internal predecessors, (54), 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 28 [2023-12-18 17:45:54,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:45:54,860 INFO L225 Difference]: With dead ends: 434 [2023-12-18 17:45:54,860 INFO L226 Difference]: Without dead ends: 372 [2023-12-18 17:45:54,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-12-18 17:45:54,861 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 921 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 921 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-18 17:45:54,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [921 Valid, 186 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-18 17:45:54,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2023-12-18 17:45:54,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 170. [2023-12-18 17:45:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 169 states have (on average 1.1538461538461537) internal successors, (195), 169 states have internal predecessors, (195), 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) [2023-12-18 17:45:54,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 195 transitions. [2023-12-18 17:45:54,873 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 195 transitions. Word has length 28 [2023-12-18 17:45:54,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:45:54,873 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 195 transitions. [2023-12-18 17:45:54,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 48 states have internal predecessors, (54), 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) [2023-12-18 17:45:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 195 transitions. [2023-12-18 17:45:54,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-18 17:45:54,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:45:54,874 INFO L195 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1] [2023-12-18 17:45:54,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-18 17:45:55,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:45:55,080 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:45:55,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:45:55,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1975569919, now seen corresponding path program 5 times [2023-12-18 17:45:55,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:45:55,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850544412] [2023-12-18 17:45:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:45:55,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:45:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:45:56,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:45:56,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:45:56,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850544412] [2023-12-18 17:45:56,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850544412] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:45:56,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328149210] [2023-12-18 17:45:56,395 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-18 17:45:56,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:45:56,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:45:56,396 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 17:45:56,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-18 17:46:12,997 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2023-12-18 17:46:12,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-18 17:46:13,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-18 17:46:13,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-18 17:46:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:46:13,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-18 17:46:14,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:46:14,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328149210] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-18 17:46:14,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-18 17:46:14,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 96 [2023-12-18 17:46:14,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442461263] [2023-12-18 17:46:14,907 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-18 17:46:14,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-12-18 17:46:14,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 17:46:14,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-12-18 17:46:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-12-18 17:46:14,912 INFO L87 Difference]: Start difference. First operand 170 states and 195 transitions. Second operand has 97 states, 97 states have (on average 1.0515463917525774) internal successors, (102), 96 states have internal predecessors, (102), 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) [2023-12-18 17:46:16,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 17:46:16,957 INFO L93 Difference]: Finished difference Result 878 states and 1022 transitions. [2023-12-18 17:46:16,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-12-18 17:46:16,957 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 1.0515463917525774) internal successors, (102), 96 states have internal predecessors, (102), 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 52 [2023-12-18 17:46:16,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 17:46:16,960 INFO L225 Difference]: With dead ends: 878 [2023-12-18 17:46:16,960 INFO L226 Difference]: Without dead ends: 756 [2023-12-18 17:46:16,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-12-18 17:46:16,963 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2298 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 562 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-18 17:46:16,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 378 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-18 17:46:16,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2023-12-18 17:46:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 338. [2023-12-18 17:46:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 337 states have (on average 1.1483679525222552) internal successors, (387), 337 states have internal predecessors, (387), 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) [2023-12-18 17:46:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 387 transitions. [2023-12-18 17:46:16,985 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 387 transitions. Word has length 52 [2023-12-18 17:46:16,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 17:46:16,985 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 387 transitions. [2023-12-18 17:46:16,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 1.0515463917525774) internal successors, (102), 96 states have internal predecessors, (102), 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) [2023-12-18 17:46:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 387 transitions. [2023-12-18 17:46:16,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-18 17:46:16,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 17:46:16,987 INFO L195 NwaCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1] [2023-12-18 17:46:17,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-18 17:46:17,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:46:17,200 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 17:46:17,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 17:46:17,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1285135361, now seen corresponding path program 6 times [2023-12-18 17:46:17,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 17:46:17,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916040520] [2023-12-18 17:46:17,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 17:46:17,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 17:46:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 17:46:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 17:46:21,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 17:46:21,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916040520] [2023-12-18 17:46:21,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916040520] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-18 17:46:21,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093874152] [2023-12-18 17:46:21,549 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-18 17:46:21,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-18 17:46:21,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 17:46:21,556 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-18 17:46:21,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process Received shutdown request... [2023-12-18 18:00:35,897 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 [2023-12-18 18:00:35,922 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-18 18:00:36,914 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 [2023-12-18 18:00:37,122 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2023-12-18 18:00:37,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-18 18:00:37,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-18 18:00:37,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2023-12-18 18:00:37,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585710922] [2023-12-18 18:00:37,150 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-18 18:00:37,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-12-18 18:00:37,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 18:00:37,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-12-18 18:00:37,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-12-18 18:00:37,154 INFO L87 Difference]: Start difference. First operand 338 states and 387 transitions. Second operand has 97 states, 97 states have (on average 1.0309278350515463) internal successors, (100), 96 states have internal predecessors, (100), 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) [2023-12-18 18:00:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-18 18:00:37,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 137 [2023-12-18 18:00:37,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-12-18 18:00:37,174 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-18 18:00:37,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-18 18:00:37,178 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-18 18:00:37,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-18 18:00:37,179 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (338states) and FLOYD_HOARE automaton (currently 2 states, 97 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). [2023-12-18 18:00:37,181 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1] [2023-12-18 18:00:37,183 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-18 18:00:37,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:00:37 BoogieIcfgContainer [2023-12-18 18:00:37,185 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-18 18:00:37,185 INFO L158 Benchmark]: Toolchain (without parser) took 886608.20ms. Allocated memory was 245.4MB in the beginning and 414.2MB in the end (delta: 168.8MB). Free memory was 208.7MB in the beginning and 355.3MB in the end (delta: -146.6MB). Peak memory consumption was 22.8MB. Max. memory is 8.0GB. [2023-12-18 18:00:37,185 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 179.3MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-18 18:00:37,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.94ms. Allocated memory is still 245.4MB. Free memory was 208.2MB in the beginning and 197.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-18 18:00:37,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.20ms. Allocated memory is still 245.4MB. Free memory was 197.7MB in the beginning and 196.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-18 18:00:37,186 INFO L158 Benchmark]: Boogie Preprocessor took 21.82ms. Allocated memory is still 245.4MB. Free memory was 196.1MB in the beginning and 194.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-12-18 18:00:37,186 INFO L158 Benchmark]: RCFGBuilder took 291.18ms. Allocated memory is still 245.4MB. Free memory was 194.0MB in the beginning and 183.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-18 18:00:37,186 INFO L158 Benchmark]: TraceAbstraction took 886097.02ms. Allocated memory was 245.4MB in the beginning and 414.2MB in the end (delta: 168.8MB). Free memory was 182.5MB in the beginning and 355.3MB in the end (delta: -172.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-18 18:00:37,187 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 179.3MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 169.94ms. Allocated memory is still 245.4MB. Free memory was 208.2MB in the beginning and 197.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.20ms. Allocated memory is still 245.4MB. Free memory was 197.7MB in the beginning and 196.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.82ms. Allocated memory is still 245.4MB. Free memory was 196.1MB in the beginning and 194.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 291.18ms. Allocated memory is still 245.4MB. Free memory was 194.0MB in the beginning and 183.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 886097.02ms. Allocated memory was 245.4MB in the beginning and 414.2MB in the end (delta: 168.8MB). Free memory was 182.5MB in the beginning and 355.3MB in the end (delta: -172.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 13). Cancelled while NwaCegarLoop was constructing difference of abstraction (338states) and FLOYD_HOARE automaton (currently 2 states, 97 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 886.0s, OverallIterations: 7, TraceHistogramMax: 94, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3710 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3710 mSDsluCounter, 738 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 700 mSDsCounter, 898 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 786 IncrementalHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 898 mSolverCounterUnsat, 38 mSDtfsCounter, 786 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 407 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 277 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=6, InterpolantAutomatonStates: 189, 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, 6 MinimizatonAttempts, 770 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 16.8s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 332 NumberOfCodeBlocks, 332 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 428 ConstructedInterpolants, 0 QuantifiedInterpolants, 1148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 801 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 0/8665 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