/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:22:36,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:22:36,196 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:22:36,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:22:36,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:22:36,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:22:36,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:22:36,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:22:36,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:22:36,224 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:22:36,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:22:36,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:22:36,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:22:36,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:22:36,226 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:22:36,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:22:36,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:22:36,226 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:22:36,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:22:36,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:22:36,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:22:36,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:22:36,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:22:36,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:22:36,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:22:36,229 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:22:36,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:22:36,229 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:22:36,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:22:36,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:22:36,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:22:36,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:22:36,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:22:36,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:22:36,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:22:36,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:22:36,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:22:36,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:22:36,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:22:36,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:22:36,231 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:22:36,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:22:36,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:22:36,232 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:22:36,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:22:36,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:22:36,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:22:36,445 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:22:36,445 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:22:36,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-16 06:22:37,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:22:37,742 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:22:37,743 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-16 06:22:37,753 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/986d86434/ccaaaef969a747cd98820f32041c95b8/FLAG509875ae3 [2023-12-16 06:22:37,771 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/986d86434/ccaaaef969a747cd98820f32041c95b8 [2023-12-16 06:22:37,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:22:37,774 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:22:37,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:22:37,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:22:37,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:22:37,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:22:37" (1/1) ... [2023-12-16 06:22:37,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740ae291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:37, skipping insertion in model container [2023-12-16 06:22:37,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:22:37" (1/1) ... [2023-12-16 06:22:37,836 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:22:38,053 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2023-12-16 06:22:38,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:22:38,148 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:22:38,203 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c[8609,8622] [2023-12-16 06:22:38,227 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:22:38,240 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:22:38,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38 WrapperNode [2023-12-16 06:22:38,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:22:38,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:22:38,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:22:38,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:22:38,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,308 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 871 [2023-12-16 06:22:38,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:22:38,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:22:38,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:22:38,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:22:38,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,355 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 06:22:38,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:22:38,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:22:38,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:22:38,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:22:38,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (1/1) ... [2023-12-16 06:22:38,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:22:38,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:22:38,435 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 06:22:38,485 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 06:22:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:22:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:22:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:22:38,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:22:38,602 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:22:38,604 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:22:39,211 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:22:39,257 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:22:39,257 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:22:39,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:22:39 BoogieIcfgContainer [2023-12-16 06:22:39,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:22:39,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:22:39,259 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:22:39,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:22:39,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:22:37" (1/3) ... [2023-12-16 06:22:39,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dadb901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:22:39, skipping insertion in model container [2023-12-16 06:22:39,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:38" (2/3) ... [2023-12-16 06:22:39,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dadb901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:22:39, skipping insertion in model container [2023-12-16 06:22:39,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:22:39" (3/3) ... [2023-12-16 06:22:39,263 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2023-12-16 06:22:39,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:22:39,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:22:39,316 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:22:39,321 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;@36c2670d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:22:39,321 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:22:39,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 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 06:22:39,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 06:22:39,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:39,339 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] [2023-12-16 06:22:39,340 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:39,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:39,344 INFO L85 PathProgramCache]: Analyzing trace with hash -474104543, now seen corresponding path program 1 times [2023-12-16 06:22:39,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:39,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374613443] [2023-12-16 06:22:39,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:39,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:39,781 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 06:22:39,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:39,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374613443] [2023-12-16 06:22:39,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374613443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:39,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:39,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:22:39,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929975999] [2023-12-16 06:22:39,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:39,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:39,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:39,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:39,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:39,810 INFO L87 Difference]: Start difference. First operand has 214 states, 212 states have (on average 1.7264150943396226) internal successors, (366), 213 states have internal predecessors, (366), 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 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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 06:22:40,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:40,066 INFO L93 Difference]: Finished difference Result 860 states and 1396 transitions. [2023-12-16 06:22:40,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:22:40,069 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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 80 [2023-12-16 06:22:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:40,085 INFO L225 Difference]: With dead ends: 860 [2023-12-16 06:22:40,085 INFO L226 Difference]: Without dead ends: 747 [2023-12-16 06:22:40,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:22:40,093 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 2247 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:40,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2247 Valid, 2297 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:40,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2023-12-16 06:22:40,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 328. [2023-12-16 06:22:40,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 1.5015290519877675) internal successors, (491), 327 states have internal predecessors, (491), 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 06:22:40,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 491 transitions. [2023-12-16 06:22:40,167 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 491 transitions. Word has length 80 [2023-12-16 06:22:40,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:40,168 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 491 transitions. [2023-12-16 06:22:40,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 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 06:22:40,168 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 491 transitions. [2023-12-16 06:22:40,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 06:22:40,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:40,170 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] [2023-12-16 06:22:40,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:22:40,170 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:40,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:40,171 INFO L85 PathProgramCache]: Analyzing trace with hash -2091304489, now seen corresponding path program 1 times [2023-12-16 06:22:40,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:40,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742946678] [2023-12-16 06:22:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:40,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:40,448 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 06:22:40,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:40,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742946678] [2023-12-16 06:22:40,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742946678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:40,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:40,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:22:40,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668382839] [2023-12-16 06:22:40,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:40,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:40,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:40,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:40,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:40,456 INFO L87 Difference]: Start difference. First operand 328 states and 491 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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 06:22:40,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:40,651 INFO L93 Difference]: Finished difference Result 1424 states and 2198 transitions. [2023-12-16 06:22:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:22:40,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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 81 [2023-12-16 06:22:40,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:40,655 INFO L225 Difference]: With dead ends: 1424 [2023-12-16 06:22:40,656 INFO L226 Difference]: Without dead ends: 1176 [2023-12-16 06:22:40,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:40,662 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 1016 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:40,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1959 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:22:40,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2023-12-16 06:22:40,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1168. [2023-12-16 06:22:40,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1167 states have (on average 1.5389888603256212) internal successors, (1796), 1167 states have internal predecessors, (1796), 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 06:22:40,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 1796 transitions. [2023-12-16 06:22:40,698 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 1796 transitions. Word has length 81 [2023-12-16 06:22:40,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:40,699 INFO L495 AbstractCegarLoop]: Abstraction has 1168 states and 1796 transitions. [2023-12-16 06:22:40,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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 06:22:40,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 1796 transitions. [2023-12-16 06:22:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 06:22:40,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:40,706 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] [2023-12-16 06:22:40,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:22:40,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:40,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:40,710 INFO L85 PathProgramCache]: Analyzing trace with hash -680835100, now seen corresponding path program 1 times [2023-12-16 06:22:40,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:40,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885886363] [2023-12-16 06:22:40,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:40,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:40,827 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 06:22:40,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:40,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885886363] [2023-12-16 06:22:40,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885886363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:40,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:40,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:40,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702733374] [2023-12-16 06:22:40,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:40,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:40,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:40,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:40,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:40,831 INFO L87 Difference]: Start difference. First operand 1168 states and 1796 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:41,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:41,055 INFO L93 Difference]: Finished difference Result 3225 states and 5016 transitions. [2023-12-16 06:22:41,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:22:41,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 82 [2023-12-16 06:22:41,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:41,061 INFO L225 Difference]: With dead ends: 3225 [2023-12-16 06:22:41,061 INFO L226 Difference]: Without dead ends: 2099 [2023-12-16 06:22:41,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:41,067 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1231 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:41,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 288 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:22:41,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2023-12-16 06:22:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2097. [2023-12-16 06:22:41,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2097 states, 2096 states have (on average 1.5481870229007633) internal successors, (3245), 2096 states have internal predecessors, (3245), 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 06:22:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 3245 transitions. [2023-12-16 06:22:41,103 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 3245 transitions. Word has length 82 [2023-12-16 06:22:41,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:41,106 INFO L495 AbstractCegarLoop]: Abstraction has 2097 states and 3245 transitions. [2023-12-16 06:22:41,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:41,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 3245 transitions. [2023-12-16 06:22:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 06:22:41,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:41,113 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] [2023-12-16 06:22:41,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:22:41,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:41,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:41,114 INFO L85 PathProgramCache]: Analyzing trace with hash -107615691, now seen corresponding path program 1 times [2023-12-16 06:22:41,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:41,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219207153] [2023-12-16 06:22:41,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:41,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:41,216 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 06:22:41,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:41,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219207153] [2023-12-16 06:22:41,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219207153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:41,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:41,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:41,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940167181] [2023-12-16 06:22:41,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:41,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:41,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:41,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:41,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:41,218 INFO L87 Difference]: Start difference. First operand 2097 states and 3245 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:41,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:41,401 INFO L93 Difference]: Finished difference Result 5895 states and 9183 transitions. [2023-12-16 06:22:41,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:22:41,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 82 [2023-12-16 06:22:41,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:41,412 INFO L225 Difference]: With dead ends: 5895 [2023-12-16 06:22:41,412 INFO L226 Difference]: Without dead ends: 3856 [2023-12-16 06:22:41,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:41,419 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1191 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:41,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 292 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2023-12-16 06:22:41,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 3854. [2023-12-16 06:22:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3854 states, 3853 states have (on average 1.5491824552296911) internal successors, (5969), 3853 states have internal predecessors, (5969), 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 06:22:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3854 states to 3854 states and 5969 transitions. [2023-12-16 06:22:41,481 INFO L78 Accepts]: Start accepts. Automaton has 3854 states and 5969 transitions. Word has length 82 [2023-12-16 06:22:41,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:41,482 INFO L495 AbstractCegarLoop]: Abstraction has 3854 states and 5969 transitions. [2023-12-16 06:22:41,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:41,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3854 states and 5969 transitions. [2023-12-16 06:22:41,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 06:22:41,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:41,484 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] [2023-12-16 06:22:41,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:22:41,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:41,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:41,485 INFO L85 PathProgramCache]: Analyzing trace with hash 565371462, now seen corresponding path program 1 times [2023-12-16 06:22:41,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:41,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351013186] [2023-12-16 06:22:41,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:41,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:41,574 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 06:22:41,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:41,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351013186] [2023-12-16 06:22:41,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351013186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:41,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:41,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:41,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632061310] [2023-12-16 06:22:41,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:41,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:41,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:41,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:41,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:41,577 INFO L87 Difference]: Start difference. First operand 3854 states and 5969 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:41,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:41,792 INFO L93 Difference]: Finished difference Result 10979 states and 17064 transitions. [2023-12-16 06:22:41,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:22:41,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 82 [2023-12-16 06:22:41,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:41,813 INFO L225 Difference]: With dead ends: 10979 [2023-12-16 06:22:41,813 INFO L226 Difference]: Without dead ends: 7206 [2023-12-16 06:22:41,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:41,821 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1153 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:41,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 294 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:41,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7206 states. [2023-12-16 06:22:41,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7206 to 7204. [2023-12-16 06:22:41,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7204 states, 7203 states have (on average 1.545328335415799) internal successors, (11131), 7203 states have internal predecessors, (11131), 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 06:22:41,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7204 states to 7204 states and 11131 transitions. [2023-12-16 06:22:41,939 INFO L78 Accepts]: Start accepts. Automaton has 7204 states and 11131 transitions. Word has length 82 [2023-12-16 06:22:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:41,939 INFO L495 AbstractCegarLoop]: Abstraction has 7204 states and 11131 transitions. [2023-12-16 06:22:41,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 7204 states and 11131 transitions. [2023-12-16 06:22:41,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 06:22:41,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:41,942 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] [2023-12-16 06:22:41,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:22:41,943 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:41,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:41,943 INFO L85 PathProgramCache]: Analyzing trace with hash -563630057, now seen corresponding path program 1 times [2023-12-16 06:22:41,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:41,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278514957] [2023-12-16 06:22:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:41,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:42,004 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 06:22:42,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:42,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278514957] [2023-12-16 06:22:42,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278514957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:42,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:42,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:42,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629869512] [2023-12-16 06:22:42,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:42,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:42,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:42,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:42,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:42,006 INFO L87 Difference]: Start difference. First operand 7204 states and 11131 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:42,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:42,236 INFO L93 Difference]: Finished difference Result 20742 states and 32106 transitions. [2023-12-16 06:22:42,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:22:42,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 82 [2023-12-16 06:22:42,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:42,321 INFO L225 Difference]: With dead ends: 20742 [2023-12-16 06:22:42,321 INFO L226 Difference]: Without dead ends: 13649 [2023-12-16 06:22:42,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:42,331 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1115 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:42,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 296 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:42,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13649 states. [2023-12-16 06:22:42,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13649 to 13647. [2023-12-16 06:22:42,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13647 states, 13646 states have (on average 1.5395720357613953) internal successors, (21009), 13646 states have internal predecessors, (21009), 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 06:22:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13647 states to 13647 states and 21009 transitions. [2023-12-16 06:22:42,556 INFO L78 Accepts]: Start accepts. Automaton has 13647 states and 21009 transitions. Word has length 82 [2023-12-16 06:22:42,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:42,556 INFO L495 AbstractCegarLoop]: Abstraction has 13647 states and 21009 transitions. [2023-12-16 06:22:42,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:42,557 INFO L276 IsEmpty]: Start isEmpty. Operand 13647 states and 21009 transitions. [2023-12-16 06:22:42,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 06:22:42,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:42,561 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] [2023-12-16 06:22:42,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:22:42,561 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:42,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1335241816, now seen corresponding path program 1 times [2023-12-16 06:22:42,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:42,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976507565] [2023-12-16 06:22:42,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:42,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:42,659 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 06:22:42,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:42,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976507565] [2023-12-16 06:22:42,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976507565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:42,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:42,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:42,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833817867] [2023-12-16 06:22:42,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:42,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:42,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:42,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:42,661 INFO L87 Difference]: Start difference. First operand 13647 states and 21009 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:42,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:42,961 INFO L93 Difference]: Finished difference Result 39951 states and 61617 transitions. [2023-12-16 06:22:42,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:22:42,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 82 [2023-12-16 06:22:42,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:43,025 INFO L225 Difference]: With dead ends: 39951 [2023-12-16 06:22:43,025 INFO L226 Difference]: Without dead ends: 26449 [2023-12-16 06:22:43,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:43,040 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1101 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:43,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 305 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:43,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26449 states. [2023-12-16 06:22:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26449 to 26447. [2023-12-16 06:22:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26447 states, 26446 states have (on average 1.5359600695757392) internal successors, (40620), 26446 states have internal predecessors, (40620), 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 06:22:43,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26447 states to 26447 states and 40620 transitions. [2023-12-16 06:22:43,506 INFO L78 Accepts]: Start accepts. Automaton has 26447 states and 40620 transitions. Word has length 82 [2023-12-16 06:22:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:43,506 INFO L495 AbstractCegarLoop]: Abstraction has 26447 states and 40620 transitions. [2023-12-16 06:22:43,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 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 06:22:43,507 INFO L276 IsEmpty]: Start isEmpty. Operand 26447 states and 40620 transitions. [2023-12-16 06:22:43,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-16 06:22:43,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:43,511 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] [2023-12-16 06:22:43,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:22:43,511 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:43,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:43,512 INFO L85 PathProgramCache]: Analyzing trace with hash -375543261, now seen corresponding path program 1 times [2023-12-16 06:22:43,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:43,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561635133] [2023-12-16 06:22:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:43,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:43,701 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 06:22:43,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:43,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561635133] [2023-12-16 06:22:43,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561635133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:43,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:43,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:22:43,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934479233] [2023-12-16 06:22:43,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:43,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:43,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:43,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:43,703 INFO L87 Difference]: Start difference. First operand 26447 states and 40620 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 06:22:44,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:44,005 INFO L93 Difference]: Finished difference Result 52689 states and 80653 transitions. [2023-12-16 06:22:44,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:22:44,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2023-12-16 06:22:44,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:44,103 INFO L225 Difference]: With dead ends: 52689 [2023-12-16 06:22:44,103 INFO L226 Difference]: Without dead ends: 52687 [2023-12-16 06:22:44,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:22:44,120 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 302 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:44,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1228 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:44,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52687 states. [2023-12-16 06:22:44,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52687 to 27087. [2023-12-16 06:22:44,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27087 states, 27086 states have (on average 1.5232961677619434) internal successors, (41260), 27086 states have internal predecessors, (41260), 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 06:22:44,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27087 states to 27087 states and 41260 transitions. [2023-12-16 06:22:44,693 INFO L78 Accepts]: Start accepts. Automaton has 27087 states and 41260 transitions. Word has length 83 [2023-12-16 06:22:44,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:44,693 INFO L495 AbstractCegarLoop]: Abstraction has 27087 states and 41260 transitions. [2023-12-16 06:22:44,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 06:22:44,694 INFO L276 IsEmpty]: Start isEmpty. Operand 27087 states and 41260 transitions. [2023-12-16 06:22:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:22:44,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:44,699 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] [2023-12-16 06:22:44,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:22:44,699 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:44,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:44,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1521514654, now seen corresponding path program 1 times [2023-12-16 06:22:44,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:44,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59144271] [2023-12-16 06:22:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:44,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:44,820 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 06:22:44,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:44,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59144271] [2023-12-16 06:22:44,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59144271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:44,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:44,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:44,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106739145] [2023-12-16 06:22:44,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:44,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:22:44,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:22:44,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:22:44,825 INFO L87 Difference]: Start difference. First operand 27087 states and 41260 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 06:22:45,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:45,109 INFO L93 Difference]: Finished difference Result 76307 states and 115934 transitions. [2023-12-16 06:22:45,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:22:45,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 84 [2023-12-16 06:22:45,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:45,214 INFO L225 Difference]: With dead ends: 76307 [2023-12-16 06:22:45,214 INFO L226 Difference]: Without dead ends: 50065 [2023-12-16 06:22:45,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:22:45,364 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 204 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:45,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 818 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:45,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50065 states. [2023-12-16 06:22:46,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50065 to 50063. [2023-12-16 06:22:46,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50063 states, 50062 states have (on average 1.5100475410490992) internal successors, (75596), 50062 states have internal predecessors, (75596), 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 06:22:46,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50063 states to 50063 states and 75596 transitions. [2023-12-16 06:22:46,226 INFO L78 Accepts]: Start accepts. Automaton has 50063 states and 75596 transitions. Word has length 84 [2023-12-16 06:22:46,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:46,226 INFO L495 AbstractCegarLoop]: Abstraction has 50063 states and 75596 transitions. [2023-12-16 06:22:46,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 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 06:22:46,226 INFO L276 IsEmpty]: Start isEmpty. Operand 50063 states and 75596 transitions. [2023-12-16 06:22:46,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:22:46,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:46,239 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] [2023-12-16 06:22:46,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:22:46,239 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:46,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:46,239 INFO L85 PathProgramCache]: Analyzing trace with hash -887764282, now seen corresponding path program 1 times [2023-12-16 06:22:46,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:46,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789135764] [2023-12-16 06:22:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:46,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:46,399 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 06:22:46,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:46,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789135764] [2023-12-16 06:22:46,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789135764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:46,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:46,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:46,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442218344] [2023-12-16 06:22:46,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:46,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:46,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:46,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:46,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:46,401 INFO L87 Difference]: Start difference. First operand 50063 states and 75596 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 06:22:46,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:46,824 INFO L93 Difference]: Finished difference Result 108096 states and 163083 transitions. [2023-12-16 06:22:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:46,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2023-12-16 06:22:46,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:46,955 INFO L225 Difference]: With dead ends: 108096 [2023-12-16 06:22:46,955 INFO L226 Difference]: Without dead ends: 66062 [2023-12-16 06:22:46,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:46,987 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 203 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:46,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 563 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:47,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66062 states. [2023-12-16 06:22:47,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66062 to 65587. [2023-12-16 06:22:47,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65587 states, 65586 states have (on average 1.4912176379105297) internal successors, (97803), 65586 states have internal predecessors, (97803), 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 06:22:47,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65587 states to 65587 states and 97803 transitions. [2023-12-16 06:22:47,923 INFO L78 Accepts]: Start accepts. Automaton has 65587 states and 97803 transitions. Word has length 85 [2023-12-16 06:22:47,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:47,923 INFO L495 AbstractCegarLoop]: Abstraction has 65587 states and 97803 transitions. [2023-12-16 06:22:47,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 06:22:47,929 INFO L276 IsEmpty]: Start isEmpty. Operand 65587 states and 97803 transitions. [2023-12-16 06:22:47,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:22:47,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:47,956 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] [2023-12-16 06:22:47,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:22:47,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:47,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:47,957 INFO L85 PathProgramCache]: Analyzing trace with hash 614233927, now seen corresponding path program 1 times [2023-12-16 06:22:47,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:47,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652322999] [2023-12-16 06:22:47,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:47,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:48,001 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 06:22:48,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:48,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652322999] [2023-12-16 06:22:48,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652322999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:48,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:48,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:48,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844318507] [2023-12-16 06:22:48,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:48,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:48,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:48,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:48,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:48,003 INFO L87 Difference]: Start difference. First operand 65587 states and 97803 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 06:22:48,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:48,592 INFO L93 Difference]: Finished difference Result 125254 states and 186422 transitions. [2023-12-16 06:22:48,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:48,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2023-12-16 06:22:48,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:48,695 INFO L225 Difference]: With dead ends: 125254 [2023-12-16 06:22:48,695 INFO L226 Difference]: Without dead ends: 79724 [2023-12-16 06:22:48,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:48,726 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 191 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:48,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 561 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:48,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79724 states. [2023-12-16 06:22:49,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79724 to 79127. [2023-12-16 06:22:49,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79127 states, 79126 states have (on average 1.4686828602482118) internal successors, (116211), 79126 states have internal predecessors, (116211), 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 06:22:49,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79127 states to 79127 states and 116211 transitions. [2023-12-16 06:22:49,959 INFO L78 Accepts]: Start accepts. Automaton has 79127 states and 116211 transitions. Word has length 85 [2023-12-16 06:22:49,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:49,959 INFO L495 AbstractCegarLoop]: Abstraction has 79127 states and 116211 transitions. [2023-12-16 06:22:49,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 06:22:49,959 INFO L276 IsEmpty]: Start isEmpty. Operand 79127 states and 116211 transitions. [2023-12-16 06:22:49,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:22:49,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:49,984 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] [2023-12-16 06:22:49,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:22:49,984 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:49,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:49,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1372954598, now seen corresponding path program 1 times [2023-12-16 06:22:49,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:49,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224660969] [2023-12-16 06:22:49,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:49,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:50,048 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 06:22:50,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:50,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224660969] [2023-12-16 06:22:50,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224660969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:50,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:50,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:50,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282900367] [2023-12-16 06:22:50,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:50,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:50,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:50,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:50,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:50,050 INFO L87 Difference]: Start difference. First operand 79127 states and 116211 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 06:22:50,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:50,708 INFO L93 Difference]: Finished difference Result 134140 states and 196458 transitions. [2023-12-16 06:22:50,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:50,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2023-12-16 06:22:50,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:50,839 INFO L225 Difference]: With dead ends: 134140 [2023-12-16 06:22:50,839 INFO L226 Difference]: Without dead ends: 90450 [2023-12-16 06:22:50,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:50,872 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 179 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:50,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 559 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:50,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90450 states. [2023-12-16 06:22:51,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90450 to 89654. [2023-12-16 06:22:51,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89654 states, 89653 states have (on average 1.4431530456314903) internal successors, (129383), 89653 states have internal predecessors, (129383), 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 06:22:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89654 states to 89654 states and 129383 transitions. [2023-12-16 06:22:52,006 INFO L78 Accepts]: Start accepts. Automaton has 89654 states and 129383 transitions. Word has length 85 [2023-12-16 06:22:52,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:52,007 INFO L495 AbstractCegarLoop]: Abstraction has 89654 states and 129383 transitions. [2023-12-16 06:22:52,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 06:22:52,007 INFO L276 IsEmpty]: Start isEmpty. Operand 89654 states and 129383 transitions. [2023-12-16 06:22:52,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:22:52,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:52,018 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] [2023-12-16 06:22:52,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:22:52,018 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:52,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:52,019 INFO L85 PathProgramCache]: Analyzing trace with hash -208696069, now seen corresponding path program 1 times [2023-12-16 06:22:52,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:52,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747776260] [2023-12-16 06:22:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:52,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:52,077 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 06:22:52,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:52,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747776260] [2023-12-16 06:22:52,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747776260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:52,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:52,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:52,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147636540] [2023-12-16 06:22:52,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:52,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:52,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:52,080 INFO L87 Difference]: Start difference. First operand 89654 states and 129383 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 06:22:52,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:52,625 INFO L93 Difference]: Finished difference Result 124080 states and 178327 transitions. [2023-12-16 06:22:52,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:52,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2023-12-16 06:22:52,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:52,783 INFO L225 Difference]: With dead ends: 124080 [2023-12-16 06:22:52,783 INFO L226 Difference]: Without dead ends: 92182 [2023-12-16 06:22:52,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:52,830 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 171 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:52,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 560 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:52,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92182 states. [2023-12-16 06:22:53,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92182 to 82684. [2023-12-16 06:22:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82684 states, 82683 states have (on average 1.4202314865208083) internal successors, (117429), 82683 states have internal predecessors, (117429), 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 06:22:54,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82684 states to 82684 states and 117429 transitions. [2023-12-16 06:22:54,091 INFO L78 Accepts]: Start accepts. Automaton has 82684 states and 117429 transitions. Word has length 85 [2023-12-16 06:22:54,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:54,092 INFO L495 AbstractCegarLoop]: Abstraction has 82684 states and 117429 transitions. [2023-12-16 06:22:54,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 06:22:54,092 INFO L276 IsEmpty]: Start isEmpty. Operand 82684 states and 117429 transitions. [2023-12-16 06:22:54,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:22:54,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:54,101 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] [2023-12-16 06:22:54,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:22:54,101 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:54,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:54,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1081683865, now seen corresponding path program 1 times [2023-12-16 06:22:54,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:54,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505061932] [2023-12-16 06:22:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:54,187 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 06:22:54,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:54,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505061932] [2023-12-16 06:22:54,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505061932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:54,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:54,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:22:54,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803997743] [2023-12-16 06:22:54,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:54,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:54,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:54,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:54,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:54,189 INFO L87 Difference]: Start difference. First operand 82684 states and 117429 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:22:54,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:54,929 INFO L93 Difference]: Finished difference Result 192544 states and 275327 transitions. [2023-12-16 06:22:54,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:22:54,930 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2023-12-16 06:22:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:55,182 INFO L225 Difference]: With dead ends: 192544 [2023-12-16 06:22:55,183 INFO L226 Difference]: Without dead ends: 160856 [2023-12-16 06:22:55,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:22:55,247 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 1650 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:55,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 2265 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:22:55,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160856 states. [2023-12-16 06:22:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160856 to 108032. [2023-12-16 06:22:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108032 states, 108031 states have (on average 1.4202404865270153) internal successors, (153430), 108031 states have internal predecessors, (153430), 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 06:22:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108032 states to 108032 states and 153430 transitions. [2023-12-16 06:22:57,258 INFO L78 Accepts]: Start accepts. Automaton has 108032 states and 153430 transitions. Word has length 85 [2023-12-16 06:22:57,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:57,492 INFO L495 AbstractCegarLoop]: Abstraction has 108032 states and 153430 transitions. [2023-12-16 06:22:57,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:22:57,492 INFO L276 IsEmpty]: Start isEmpty. Operand 108032 states and 153430 transitions. [2023-12-16 06:22:57,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:22:57,526 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:57,531 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] [2023-12-16 06:22:57,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:22:57,531 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:22:57,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:57,531 INFO L85 PathProgramCache]: Analyzing trace with hash 644137702, now seen corresponding path program 1 times [2023-12-16 06:22:57,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:57,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835466636] [2023-12-16 06:22:57,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:57,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:57,809 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 06:22:57,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:57,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835466636] [2023-12-16 06:22:57,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835466636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:57,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:57,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:22:57,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245875858] [2023-12-16 06:22:57,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:57,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:57,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:57,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:57,811 INFO L87 Difference]: Start difference. First operand 108032 states and 153430 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:22:58,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:58,708 INFO L93 Difference]: Finished difference Result 219492 states and 313627 transitions. [2023-12-16 06:22:58,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:22:58,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2023-12-16 06:22:58,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:59,048 INFO L225 Difference]: With dead ends: 219492 [2023-12-16 06:22:59,049 INFO L226 Difference]: Without dead ends: 186022 [2023-12-16 06:22:59,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:22:59,104 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 1641 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:59,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 2033 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:59,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186022 states. [2023-12-16 06:23:00,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186022 to 139665. [2023-12-16 06:23:01,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139665 states, 139664 states have (on average 1.4203087409783481) internal successors, (198366), 139664 states have internal predecessors, (198366), 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 06:23:01,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139665 states to 139665 states and 198366 transitions. [2023-12-16 06:23:01,419 INFO L78 Accepts]: Start accepts. Automaton has 139665 states and 198366 transitions. Word has length 85 [2023-12-16 06:23:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:01,419 INFO L495 AbstractCegarLoop]: Abstraction has 139665 states and 198366 transitions. [2023-12-16 06:23:01,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 139665 states and 198366 transitions. [2023-12-16 06:23:01,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:23:01,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:01,433 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] [2023-12-16 06:23:01,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:23:01,434 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:01,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:01,434 INFO L85 PathProgramCache]: Analyzing trace with hash 478289799, now seen corresponding path program 1 times [2023-12-16 06:23:01,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:01,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100449178] [2023-12-16 06:23:01,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:01,548 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 06:23:01,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:01,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100449178] [2023-12-16 06:23:01,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100449178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:01,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:01,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:01,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432713484] [2023-12-16 06:23:01,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:01,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:01,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:01,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:01,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:01,551 INFO L87 Difference]: Start difference. First operand 139665 states and 198366 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:02,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:02,524 INFO L93 Difference]: Finished difference Result 240050 states and 342715 transitions. [2023-12-16 06:23:02,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:02,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2023-12-16 06:23:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:02,880 INFO L225 Difference]: With dead ends: 240050 [2023-12-16 06:23:02,880 INFO L226 Difference]: Without dead ends: 212868 [2023-12-16 06:23:03,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:23:03,305 INFO L413 NwaCegarLoop]: 450 mSDtfsCounter, 1743 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:03,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 1959 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:23:03,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212868 states. [2023-12-16 06:23:05,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212868 to 154993. [2023-12-16 06:23:05,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154993 states, 154992 states have (on average 1.42177660782492) internal successors, (220364), 154992 states have internal predecessors, (220364), 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 06:23:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154993 states to 154993 states and 220364 transitions. [2023-12-16 06:23:05,590 INFO L78 Accepts]: Start accepts. Automaton has 154993 states and 220364 transitions. Word has length 85 [2023-12-16 06:23:05,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:05,594 INFO L495 AbstractCegarLoop]: Abstraction has 154993 states and 220364 transitions. [2023-12-16 06:23:05,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:05,595 INFO L276 IsEmpty]: Start isEmpty. Operand 154993 states and 220364 transitions. [2023-12-16 06:23:05,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:23:05,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:05,609 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] [2023-12-16 06:23:05,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:23:05,609 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:05,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:05,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1379291066, now seen corresponding path program 1 times [2023-12-16 06:23:05,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:05,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401215273] [2023-12-16 06:23:05,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:05,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:06,037 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 06:23:06,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:06,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401215273] [2023-12-16 06:23:06,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401215273] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:06,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:06,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:06,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948533871] [2023-12-16 06:23:06,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:06,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:06,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:06,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:06,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:06,039 INFO L87 Difference]: Start difference. First operand 154993 states and 220364 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:06,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:06,757 INFO L93 Difference]: Finished difference Result 247982 states and 353677 transitions. [2023-12-16 06:23:06,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:06,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2023-12-16 06:23:06,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:07,492 INFO L225 Difference]: With dead ends: 247982 [2023-12-16 06:23:07,493 INFO L226 Difference]: Without dead ends: 230304 [2023-12-16 06:23:07,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:23:07,552 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 1856 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:07,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 2036 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:07,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230304 states. [2023-12-16 06:23:09,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230304 to 163901. [2023-12-16 06:23:09,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163901 states, 163900 states have (on average 1.4228065893837707) internal successors, (233198), 163900 states have internal predecessors, (233198), 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 06:23:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163901 states to 163901 states and 233198 transitions. [2023-12-16 06:23:10,179 INFO L78 Accepts]: Start accepts. Automaton has 163901 states and 233198 transitions. Word has length 85 [2023-12-16 06:23:10,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:10,179 INFO L495 AbstractCegarLoop]: Abstraction has 163901 states and 233198 transitions. [2023-12-16 06:23:10,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:10,180 INFO L276 IsEmpty]: Start isEmpty. Operand 163901 states and 233198 transitions. [2023-12-16 06:23:10,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:23:10,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:10,190 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] [2023-12-16 06:23:10,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:23:10,191 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:10,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:10,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2093367941, now seen corresponding path program 1 times [2023-12-16 06:23:10,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:10,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587042729] [2023-12-16 06:23:10,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:10,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:10,277 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 06:23:10,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:10,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587042729] [2023-12-16 06:23:10,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587042729] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:10,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:10,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:23:10,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593133172] [2023-12-16 06:23:10,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:10,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:10,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:10,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:10,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:10,279 INFO L87 Difference]: Start difference. First operand 163901 states and 233198 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:11,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:11,282 INFO L93 Difference]: Finished difference Result 245966 states and 350539 transitions. [2023-12-16 06:23:11,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 06:23:11,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2023-12-16 06:23:11,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:11,719 INFO L225 Difference]: With dead ends: 245966 [2023-12-16 06:23:11,719 INFO L226 Difference]: Without dead ends: 238080 [2023-12-16 06:23:11,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-16 06:23:11,794 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 1676 mSDsluCounter, 1841 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:11,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 2276 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:11,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238080 states. [2023-12-16 06:23:14,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238080 to 171677. [2023-12-16 06:23:14,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171677 states, 171676 states have (on average 1.4228430298935204) internal successors, (244268), 171676 states have internal predecessors, (244268), 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 06:23:15,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171677 states to 171677 states and 244268 transitions. [2023-12-16 06:23:15,123 INFO L78 Accepts]: Start accepts. Automaton has 171677 states and 244268 transitions. Word has length 85 [2023-12-16 06:23:15,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:15,124 INFO L495 AbstractCegarLoop]: Abstraction has 171677 states and 244268 transitions. [2023-12-16 06:23:15,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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 06:23:15,124 INFO L276 IsEmpty]: Start isEmpty. Operand 171677 states and 244268 transitions. [2023-12-16 06:23:15,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 06:23:15,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:15,141 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] [2023-12-16 06:23:15,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:23:15,142 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:15,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:15,142 INFO L85 PathProgramCache]: Analyzing trace with hash 994226260, now seen corresponding path program 1 times [2023-12-16 06:23:15,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:15,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633089913] [2023-12-16 06:23:15,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:15,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:15,199 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 06:23:15,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:15,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633089913] [2023-12-16 06:23:15,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633089913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:15,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:15,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:23:15,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130693354] [2023-12-16 06:23:15,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:15,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:23:15,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:15,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:23:15,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:15,202 INFO L87 Difference]: Start difference. First operand 171677 states and 244268 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 06:23:17,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:17,260 INFO L93 Difference]: Finished difference Result 468837 states and 666096 transitions. [2023-12-16 06:23:17,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:23:17,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 88 [2023-12-16 06:23:17,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:17,846 INFO L225 Difference]: With dead ends: 468837 [2023-12-16 06:23:17,846 INFO L226 Difference]: Without dead ends: 304868 [2023-12-16 06:23:17,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:23:17,983 INFO L413 NwaCegarLoop]: 407 mSDtfsCounter, 205 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:17,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 676 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:23:18,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304868 states. [2023-12-16 06:23:21,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304868 to 284123. [2023-12-16 06:23:21,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284123 states, 284122 states have (on average 1.4085111325416546) internal successors, (400189), 284122 states have internal predecessors, (400189), 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 06:23:23,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284123 states to 284123 states and 400189 transitions. [2023-12-16 06:23:23,143 INFO L78 Accepts]: Start accepts. Automaton has 284123 states and 400189 transitions. Word has length 88 [2023-12-16 06:23:23,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:23,143 INFO L495 AbstractCegarLoop]: Abstraction has 284123 states and 400189 transitions. [2023-12-16 06:23:23,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 06:23:23,144 INFO L276 IsEmpty]: Start isEmpty. Operand 284123 states and 400189 transitions. [2023-12-16 06:23:23,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:23:23,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:23,167 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] [2023-12-16 06:23:23,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 06:23:23,167 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:23:23,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:23,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1526305416, now seen corresponding path program 1 times [2023-12-16 06:23:23,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:23,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227977526] [2023-12-16 06:23:23,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:23,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:23,276 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 06:23:23,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:23,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227977526] [2023-12-16 06:23:23,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227977526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:23:23,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:23:23,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:23:23,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619673339] [2023-12-16 06:23:23,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:23:23,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:23:23,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:23:23,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:23:23,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:23:23,278 INFO L87 Difference]: Start difference. First operand 284123 states and 400189 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 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 06:23:27,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:23:27,984 INFO L93 Difference]: Finished difference Result 1181073 states and 1651238 transitions. [2023-12-16 06:23:27,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:23:27,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 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 90 [2023-12-16 06:23:27,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:30,111 INFO L225 Difference]: With dead ends: 1181073 [2023-12-16 06:23:30,111 INFO L226 Difference]: Without dead ends: 1017733 [2023-12-16 06:23:30,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:23:30,838 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 2989 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2989 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:30,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2989 Valid, 488 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:23:31,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017733 states. Received shutdown request... [2023-12-16 06:23:34,761 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:23:34,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 06:23:34,761 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 06:23:34,766 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:34,769 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:23:34,779 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 06:23:34,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:23:34 BoogieIcfgContainer [2023-12-16 06:23:34,781 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:23:34,782 INFO L158 Benchmark]: Toolchain (without parser) took 57008.32ms. Allocated memory was 247.5MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 191.8MB in the beginning and 5.0GB in the end (delta: -4.8GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-16 06:23:34,782 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 205.5MB. Free memory is still 152.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:23:34,782 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.53ms. Allocated memory is still 247.5MB. Free memory was 191.3MB in the beginning and 167.2MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 06:23:34,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.29ms. Allocated memory is still 247.5MB. Free memory was 167.2MB in the beginning and 163.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 06:23:34,782 INFO L158 Benchmark]: Boogie Preprocessor took 66.73ms. Allocated memory is still 247.5MB. Free memory was 163.0MB in the beginning and 158.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 06:23:34,783 INFO L158 Benchmark]: RCFGBuilder took 880.99ms. Allocated memory is still 247.5MB. Free memory was 158.3MB in the beginning and 182.9MB in the end (delta: -24.7MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. [2023-12-16 06:23:34,783 INFO L158 Benchmark]: TraceAbstraction took 55522.24ms. Allocated memory was 247.5MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 182.4MB in the beginning and 5.0GB in the end (delta: -4.8GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-16 06:23:34,784 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 205.5MB. Free memory is still 152.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 469.53ms. Allocated memory is still 247.5MB. Free memory was 191.3MB in the beginning and 167.2MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.29ms. Allocated memory is still 247.5MB. Free memory was 167.2MB in the beginning and 163.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.73ms. Allocated memory is still 247.5MB. Free memory was 163.0MB in the beginning and 158.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 880.99ms. Allocated memory is still 247.5MB. Free memory was 158.3MB in the beginning and 182.9MB in the end (delta: -24.7MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. * TraceAbstraction took 55522.24ms. Allocated memory was 247.5MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 182.4MB in the beginning and 5.0GB in the end (delta: -4.8GB). Peak memory consumption was 3.0GB. 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: 453]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 453). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.5s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 23.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22064 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22064 mSDsluCounter, 21753 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14937 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2273 IncrementalHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 6816 mSDtfsCounter, 2273 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=284123occurred in iteration=19, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 28.6s AutomataMinimizationTime, 20 MinimizatonAttempts, 348012 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1681 NumberOfCodeBlocks, 1681 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1661 ConstructedInterpolants, 0 QuantifiedInterpolants, 8366 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 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