/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 04:09:41,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 04:09:41,210 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 04:09:41,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 04:09:41,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 04:09:41,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 04:09:41,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 04:09:41,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 04:09:41,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 04:09:41,248 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 04:09:41,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 04:09:41,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 04:09:41,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 04:09:41,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 04:09:41,251 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 04:09:41,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 04:09:41,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 04:09:41,252 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 04:09:41,252 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 04:09:41,252 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 04:09:41,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 04:09:41,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 04:09:41,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 04:09:41,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 04:09:41,253 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 04:09:41,253 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 04:09:41,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 04:09:41,254 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 04:09:41,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 04:09:41,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 04:09:41,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 04:09:41,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 04:09:41,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 04:09:41,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 04:09:41,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 04:09:41,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 04:09:41,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 04:09:41,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 04:09:41,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 04:09:41,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 04:09:41,257 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 04:09:41,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 04:09:41,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 04:09:41,257 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 04:09:41,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 04:09:41,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 04:09:41,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 04:09:41,554 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 04:09:41,554 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 04:09:41,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label50.c [2023-12-19 04:09:42,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 04:09:43,144 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 04:09:43,144 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label50.c [2023-12-19 04:09:43,166 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81a337c7/c7490567965b4842b4d8c1fc0e9d0afd/FLAG926a9468b [2023-12-19 04:09:43,181 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a81a337c7/c7490567965b4842b4d8c1fc0e9d0afd [2023-12-19 04:09:43,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 04:09:43,184 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 04:09:43,185 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 04:09:43,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 04:09:43,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 04:09:43,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:43,193 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa7ba5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43, skipping insertion in model container [2023-12-19 04:09:43,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:43,244 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 04:09:43,412 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label50.c[3933,3946] [2023-12-19 04:09:43,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 04:09:43,679 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 04:09:43,695 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label50.c[3933,3946] [2023-12-19 04:09:43,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 04:09:43,790 INFO L206 MainTranslator]: Completed translation [2023-12-19 04:09:43,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43 WrapperNode [2023-12-19 04:09:43,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 04:09:43,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 04:09:43,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 04:09:43,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 04:09:43,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:43,830 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:43,896 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2023-12-19 04:09:43,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 04:09:43,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 04:09:43,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 04:09:43,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 04:09:43,909 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:43,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:43,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:43,967 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 04:09:43,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:43,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:44,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:44,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:44,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:44,040 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:44,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 04:09:44,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 04:09:44,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 04:09:44,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 04:09:44,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (1/1) ... [2023-12-19 04:09:44,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 04:09:44,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:09:44,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 04:09:44,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 04:09:44,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 04:09:44,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 04:09:44,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 04:09:44,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 04:09:44,180 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 04:09:44,182 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 04:09:45,429 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 04:09:45,473 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 04:09:45,473 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 04:09:45,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:09:45 BoogieIcfgContainer [2023-12-19 04:09:45,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 04:09:45,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 04:09:45,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 04:09:45,478 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 04:09:45,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:09:43" (1/3) ... [2023-12-19 04:09:45,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150a0122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:09:45, skipping insertion in model container [2023-12-19 04:09:45,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:09:43" (2/3) ... [2023-12-19 04:09:45,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150a0122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:09:45, skipping insertion in model container [2023-12-19 04:09:45,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:09:45" (3/3) ... [2023-12-19 04:09:45,481 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label50.c [2023-12-19 04:09:45,496 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 04:09:45,496 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 04:09:45,551 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 04:09:45,557 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;@24d0263a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 04:09:45,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 04:09:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:45,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-19 04:09:45,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:45,568 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] [2023-12-19 04:09:45,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:45,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:45,575 INFO L85 PathProgramCache]: Analyzing trace with hash 758676237, now seen corresponding path program 1 times [2023-12-19 04:09:45,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:45,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178359593] [2023-12-19 04:09:45,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:45,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:45,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:09:45,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:45,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178359593] [2023-12-19 04:09:45,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178359593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:45,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:09:45,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 04:09:45,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696681516] [2023-12-19 04:09:45,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:45,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 04:09:45,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:45,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 04:09:45,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 04:09:45,804 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 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 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:45,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:45,853 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-19 04:09:45,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 04:09:45,860 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 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 36 [2023-12-19 04:09:45,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:45,869 INFO L225 Difference]: With dead ends: 365 [2023-12-19 04:09:45,869 INFO L226 Difference]: Without dead ends: 181 [2023-12-19 04:09:45,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 04:09:45,875 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:45,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 04:09:45,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-19 04:09:45,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-19 04:09:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-19 04:09:45,914 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 36 [2023-12-19 04:09:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:45,914 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-19 04:09:45,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:45,914 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-19 04:09:45,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-19 04:09:45,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:45,915 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] [2023-12-19 04:09:45,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 04:09:45,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:45,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:45,917 INFO L85 PathProgramCache]: Analyzing trace with hash 955388277, now seen corresponding path program 1 times [2023-12-19 04:09:45,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:45,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833887216] [2023-12-19 04:09:45,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:45,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 04:09:46,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:46,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833887216] [2023-12-19 04:09:46,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833887216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:46,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:09:46,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:09:46,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124221591] [2023-12-19 04:09:46,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:46,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 04:09:46,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:46,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 04:09:46,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:09:46,163 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:47,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:47,420 INFO L93 Difference]: Finished difference Result 717 states and 1175 transitions. [2023-12-19 04:09:47,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:09:47,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2023-12-19 04:09:47,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:47,425 INFO L225 Difference]: With dead ends: 717 [2023-12-19 04:09:47,425 INFO L226 Difference]: Without dead ends: 537 [2023-12-19 04:09:47,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 04:09:47,427 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 505 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:47,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 14 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 04:09:47,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-19 04:09:47,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2023-12-19 04:09:47,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.4496268656716418) internal successors, (777), 536 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 777 transitions. [2023-12-19 04:09:47,472 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 777 transitions. Word has length 36 [2023-12-19 04:09:47,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:47,473 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 777 transitions. [2023-12-19 04:09:47,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:47,473 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 777 transitions. [2023-12-19 04:09:47,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-19 04:09:47,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:47,480 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:09:47,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 04:09:47,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:47,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:47,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1722262339, now seen corresponding path program 1 times [2023-12-19 04:09:47,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:47,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547424776] [2023-12-19 04:09:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:47,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-19 04:09:47,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:47,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547424776] [2023-12-19 04:09:47,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547424776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:47,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:09:47,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 04:09:47,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517346893] [2023-12-19 04:09:47,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:47,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:09:47,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:47,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:09:47,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:09:47,710 INFO L87 Difference]: Start difference. First operand 537 states and 777 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:48,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:48,332 INFO L93 Difference]: Finished difference Result 1073 states and 1655 transitions. [2023-12-19 04:09:48,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:09:48,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 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 184 [2023-12-19 04:09:48,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:48,336 INFO L225 Difference]: With dead ends: 1073 [2023-12-19 04:09:48,336 INFO L226 Difference]: Without dead ends: 715 [2023-12-19 04:09:48,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:09:48,341 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:48,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 55 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 04:09:48,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-19 04:09:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-19 04:09:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.354341736694678) internal successors, (967), 714 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 967 transitions. [2023-12-19 04:09:48,372 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 967 transitions. Word has length 184 [2023-12-19 04:09:48,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:48,372 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 967 transitions. [2023-12-19 04:09:48,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 967 transitions. [2023-12-19 04:09:48,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-19 04:09:48,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:48,381 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:09:48,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 04:09:48,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:48,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:48,382 INFO L85 PathProgramCache]: Analyzing trace with hash -166227050, now seen corresponding path program 1 times [2023-12-19 04:09:48,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:48,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087956980] [2023-12-19 04:09:48,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:48,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:48,811 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 04:09:48,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:48,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087956980] [2023-12-19 04:09:48,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087956980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:48,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:09:48,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:09:48,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476351994] [2023-12-19 04:09:48,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:48,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 04:09:48,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:48,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 04:09:48,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:09:48,816 INFO L87 Difference]: Start difference. First operand 715 states and 967 transitions. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:49,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:49,507 INFO L93 Difference]: Finished difference Result 1636 states and 2267 transitions. [2023-12-19 04:09:49,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:09:49,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 3 states have internal predecessors, (202), 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 207 [2023-12-19 04:09:49,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:49,511 INFO L225 Difference]: With dead ends: 1636 [2023-12-19 04:09:49,511 INFO L226 Difference]: Without dead ends: 1071 [2023-12-19 04:09:49,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:09:49,514 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 101 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:49,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 111 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 04:09:49,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-19 04:09:49,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 893. [2023-12-19 04:09:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 892 states have (on average 1.1726457399103138) internal successors, (1046), 892 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:49,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1046 transitions. [2023-12-19 04:09:49,542 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1046 transitions. Word has length 207 [2023-12-19 04:09:49,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:49,543 INFO L495 AbstractCegarLoop]: Abstraction has 893 states and 1046 transitions. [2023-12-19 04:09:49,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:49,543 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1046 transitions. [2023-12-19 04:09:49,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-19 04:09:49,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:49,566 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:09:49,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 04:09:49,566 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:49,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:49,567 INFO L85 PathProgramCache]: Analyzing trace with hash 361460998, now seen corresponding path program 1 times [2023-12-19 04:09:49,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:49,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879961191] [2023-12-19 04:09:49,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:49,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 168 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-19 04:09:50,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:50,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879961191] [2023-12-19 04:09:50,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879961191] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:09:50,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015984220] [2023-12-19 04:09:50,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:50,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:09:50,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:09:50,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:09:50,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 04:09:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:50,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 04:09:50,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:09:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-12-19 04:09:50,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 04:09:50,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015984220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:50,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 04:09:50,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-19 04:09:50,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148616054] [2023-12-19 04:09:50,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:50,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:09:50,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:50,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:09:50,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:09:50,614 INFO L87 Difference]: Start difference. First operand 893 states and 1046 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:51,149 INFO L93 Difference]: Finished difference Result 2319 states and 2777 transitions. [2023-12-19 04:09:51,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:09:51,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 338 [2023-12-19 04:09:51,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:51,155 INFO L225 Difference]: With dead ends: 2319 [2023-12-19 04:09:51,156 INFO L226 Difference]: Without dead ends: 1605 [2023-12-19 04:09:51,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:09:51,160 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 144 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:51,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 262 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 04:09:51,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2023-12-19 04:09:51,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1427. [2023-12-19 04:09:51,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1426 states have (on average 1.1402524544179524) internal successors, (1626), 1426 states have internal predecessors, (1626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:51,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 1626 transitions. [2023-12-19 04:09:51,194 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 1626 transitions. Word has length 338 [2023-12-19 04:09:51,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:51,195 INFO L495 AbstractCegarLoop]: Abstraction has 1427 states and 1626 transitions. [2023-12-19 04:09:51,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:51,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 1626 transitions. [2023-12-19 04:09:51,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-19 04:09:51,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:51,202 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:09:51,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 04:09:51,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:09:51,411 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:51,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1663186409, now seen corresponding path program 1 times [2023-12-19 04:09:51,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:51,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943233627] [2023-12-19 04:09:51,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:51,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2023-12-19 04:09:51,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:51,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943233627] [2023-12-19 04:09:51,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943233627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:51,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:09:51,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:09:51,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002341752] [2023-12-19 04:09:51,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:51,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:09:51,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:51,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:09:51,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:09:51,951 INFO L87 Difference]: Start difference. First operand 1427 states and 1626 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:52,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:52,483 INFO L93 Difference]: Finished difference Result 3209 states and 3756 transitions. [2023-12-19 04:09:52,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:09:52,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 437 [2023-12-19 04:09:52,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:52,497 INFO L225 Difference]: With dead ends: 3209 [2023-12-19 04:09:52,497 INFO L226 Difference]: Without dead ends: 1961 [2023-12-19 04:09:52,499 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 [2023-12-19 04:09:52,503 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 72 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:52,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 74 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 04:09:52,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2023-12-19 04:09:52,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1961. [2023-12-19 04:09:52,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1960 states have (on average 1.1275510204081634) internal successors, (2210), 1960 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:52,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2210 transitions. [2023-12-19 04:09:52,543 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2210 transitions. Word has length 437 [2023-12-19 04:09:52,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:52,543 INFO L495 AbstractCegarLoop]: Abstraction has 1961 states and 2210 transitions. [2023-12-19 04:09:52,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:52,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2210 transitions. [2023-12-19 04:09:52,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-12-19 04:09:52,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:52,551 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:09:52,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 04:09:52,552 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:52,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:52,553 INFO L85 PathProgramCache]: Analyzing trace with hash 986707621, now seen corresponding path program 1 times [2023-12-19 04:09:52,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:52,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546948957] [2023-12-19 04:09:52,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:52,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:53,128 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 550 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-12-19 04:09:53,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:53,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546948957] [2023-12-19 04:09:53,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546948957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:53,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:09:53,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:09:53,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810154989] [2023-12-19 04:09:53,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:53,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 04:09:53,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 04:09:53,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:09:53,134 INFO L87 Difference]: Start difference. First operand 1961 states and 2210 transitions. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:53,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:53,838 INFO L93 Difference]: Finished difference Result 4099 states and 4615 transitions. [2023-12-19 04:09:53,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:09:53,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 3 states have internal predecessors, (346), 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 461 [2023-12-19 04:09:53,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:53,847 INFO L225 Difference]: With dead ends: 4099 [2023-12-19 04:09:53,848 INFO L226 Difference]: Without dead ends: 2317 [2023-12-19 04:09:53,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:09:53,853 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 124 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:53,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 87 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 04:09:53,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2317 states. [2023-12-19 04:09:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2317 to 2317. [2023-12-19 04:09:53,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2316 states have (on average 1.1135578583765113) internal successors, (2579), 2316 states have internal predecessors, (2579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:53,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2579 transitions. [2023-12-19 04:09:53,895 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2579 transitions. Word has length 461 [2023-12-19 04:09:53,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:53,895 INFO L495 AbstractCegarLoop]: Abstraction has 2317 states and 2579 transitions. [2023-12-19 04:09:53,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:53,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2579 transitions. [2023-12-19 04:09:53,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2023-12-19 04:09:53,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:53,905 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:09:53,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 04:09:53,905 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:53,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:53,906 INFO L85 PathProgramCache]: Analyzing trace with hash 2137788380, now seen corresponding path program 1 times [2023-12-19 04:09:53,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:53,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610441569] [2023-12-19 04:09:53,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:53,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1052 backedges. 695 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-12-19 04:09:54,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:54,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610441569] [2023-12-19 04:09:54,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610441569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:54,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:09:54,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:09:54,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520501926] [2023-12-19 04:09:54,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:54,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 04:09:54,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:54,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 04:09:54,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:09:54,377 INFO L87 Difference]: Start difference. First operand 2317 states and 2579 transitions. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:54,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:54,931 INFO L93 Difference]: Finished difference Result 4691 states and 5226 transitions. [2023-12-19 04:09:54,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:09:54,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 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 517 [2023-12-19 04:09:54,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:54,940 INFO L225 Difference]: With dead ends: 4691 [2023-12-19 04:09:54,940 INFO L226 Difference]: Without dead ends: 2495 [2023-12-19 04:09:54,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 04:09:54,945 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 141 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:54,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 14 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 04:09:54,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2023-12-19 04:09:54,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2317. [2023-12-19 04:09:54,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2317 states, 2316 states have (on average 1.081174438687392) internal successors, (2504), 2316 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:54,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2317 states to 2317 states and 2504 transitions. [2023-12-19 04:09:54,992 INFO L78 Accepts]: Start accepts. Automaton has 2317 states and 2504 transitions. Word has length 517 [2023-12-19 04:09:54,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:54,993 INFO L495 AbstractCegarLoop]: Abstraction has 2317 states and 2504 transitions. [2023-12-19 04:09:54,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:54,993 INFO L276 IsEmpty]: Start isEmpty. Operand 2317 states and 2504 transitions. [2023-12-19 04:09:54,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2023-12-19 04:09:54,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:54,998 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:09:54,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 04:09:54,998 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:54,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:54,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1485306083, now seen corresponding path program 2 times [2023-12-19 04:09:54,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:54,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812433075] [2023-12-19 04:09:54,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:55,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 771 proven. 11 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-12-19 04:09:55,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:55,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812433075] [2023-12-19 04:09:55,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812433075] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:09:55,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5466628] [2023-12-19 04:09:55,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-19 04:09:55,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:09:55,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:09:55,661 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:09:55,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 04:09:55,843 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-19 04:09:55,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-19 04:09:55,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 04:09:55,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:09:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1131 backedges. 782 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-12-19 04:09:56,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 04:09:56,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5466628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:56,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 04:09:56,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 04:09:56,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110050172] [2023-12-19 04:09:56,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:56,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 04:09:56,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:56,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 04:09:56,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:09:56,486 INFO L87 Difference]: Start difference. First operand 2317 states and 2504 transitions. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:57,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:57,229 INFO L93 Difference]: Finished difference Result 5345 states and 5840 transitions. [2023-12-19 04:09:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:09:57,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 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 543 [2023-12-19 04:09:57,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:57,242 INFO L225 Difference]: With dead ends: 5345 [2023-12-19 04:09:57,242 INFO L226 Difference]: Without dead ends: 3207 [2023-12-19 04:09:57,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:09:57,248 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 161 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:57,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 13 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 04:09:57,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2023-12-19 04:09:57,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 2673. [2023-12-19 04:09:57,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2672 states have (on average 1.0755988023952097) internal successors, (2874), 2672 states have internal predecessors, (2874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:57,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 2874 transitions. [2023-12-19 04:09:57,310 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 2874 transitions. Word has length 543 [2023-12-19 04:09:57,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:57,311 INFO L495 AbstractCegarLoop]: Abstraction has 2673 states and 2874 transitions. [2023-12-19 04:09:57,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 2874 transitions. [2023-12-19 04:09:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2023-12-19 04:09:57,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:57,318 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:09:57,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 04:09:57,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-19 04:09:57,526 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:57,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:57,527 INFO L85 PathProgramCache]: Analyzing trace with hash -433230898, now seen corresponding path program 1 times [2023-12-19 04:09:57,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:57,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232059312] [2023-12-19 04:09:57,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:57,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:58,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 784 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-12-19 04:09:58,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:58,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232059312] [2023-12-19 04:09:58,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232059312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:58,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:09:58,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:09:58,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132543420] [2023-12-19 04:09:58,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:58,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:09:58,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:58,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:09:58,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:09:58,059 INFO L87 Difference]: Start difference. First operand 2673 states and 2874 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:58,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:09:58,579 INFO L93 Difference]: Finished difference Result 5879 states and 6399 transitions. [2023-12-19 04:09:58,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:09:58,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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 550 [2023-12-19 04:09:58,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:09:58,594 INFO L225 Difference]: With dead ends: 5879 [2023-12-19 04:09:58,594 INFO L226 Difference]: Without dead ends: 3385 [2023-12-19 04:09:58,598 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 [2023-12-19 04:09:58,599 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 04:09:58,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 199 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 04:09:58,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2023-12-19 04:09:58,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3385. [2023-12-19 04:09:58,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3385 states, 3384 states have (on average 1.077127659574468) internal successors, (3645), 3384 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 3645 transitions. [2023-12-19 04:09:58,670 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 3645 transitions. Word has length 550 [2023-12-19 04:09:58,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:09:58,671 INFO L495 AbstractCegarLoop]: Abstraction has 3385 states and 3645 transitions. [2023-12-19 04:09:58,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:09:58,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 3645 transitions. [2023-12-19 04:09:58,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2023-12-19 04:09:58,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:09:58,677 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:09:58,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 04:09:58,677 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:09:58,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:09:58,678 INFO L85 PathProgramCache]: Analyzing trace with hash -176954977, now seen corresponding path program 1 times [2023-12-19 04:09:58,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:09:58,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709215862] [2023-12-19 04:09:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:58,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:09:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 798 proven. 195 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-19 04:09:59,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:09:59,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709215862] [2023-12-19 04:09:59,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709215862] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:09:59,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025130282] [2023-12-19 04:09:59,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:09:59,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:09:59,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:09:59,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:09:59,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 04:09:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:09:59,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 04:09:59,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:09:59,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2023-12-19 04:09:59,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 04:09:59,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025130282] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:09:59,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 04:09:59,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-19 04:09:59,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035534199] [2023-12-19 04:09:59,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:09:59,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:09:59,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:09:59,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:09:59,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:09:59,808 INFO L87 Difference]: Start difference. First operand 3385 states and 3645 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:00,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:00,278 INFO L93 Difference]: Finished difference Result 7125 states and 7750 transitions. [2023-12-19 04:10:00,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:00,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 595 [2023-12-19 04:10:00,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:00,294 INFO L225 Difference]: With dead ends: 7125 [2023-12-19 04:10:00,294 INFO L226 Difference]: Without dead ends: 3919 [2023-12-19 04:10:00,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:10:00,299 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 144 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:00,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 232 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 04:10:00,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2023-12-19 04:10:00,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3741. [2023-12-19 04:10:00,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 3740 states have (on average 1.0794117647058823) internal successors, (4037), 3740 states have internal predecessors, (4037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:00,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 4037 transitions. [2023-12-19 04:10:00,375 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 4037 transitions. Word has length 595 [2023-12-19 04:10:00,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:00,376 INFO L495 AbstractCegarLoop]: Abstraction has 3741 states and 4037 transitions. [2023-12-19 04:10:00,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:00,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 4037 transitions. [2023-12-19 04:10:00,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2023-12-19 04:10:00,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:00,382 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:00,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 04:10:00,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:00,590 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:00,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:00,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1281039184, now seen corresponding path program 1 times [2023-12-19 04:10:00,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:00,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583703739] [2023-12-19 04:10:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:00,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 874 proven. 195 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-19 04:10:01,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:01,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583703739] [2023-12-19 04:10:01,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583703739] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:10:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582223608] [2023-12-19 04:10:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:01,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:01,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:10:01,482 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:10:01,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 04:10:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:01,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 04:10:01,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:10:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2023-12-19 04:10:01,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 04:10:01,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582223608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:01,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 04:10:01,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-19 04:10:01,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367170683] [2023-12-19 04:10:01,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:01,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:01,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:01,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:01,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:10:01,747 INFO L87 Difference]: Start difference. First operand 3741 states and 4037 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:02,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:02,232 INFO L93 Difference]: Finished difference Result 7303 states and 7894 transitions. [2023-12-19 04:10:02,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:02,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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 614 [2023-12-19 04:10:02,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:02,245 INFO L225 Difference]: With dead ends: 7303 [2023-12-19 04:10:02,246 INFO L226 Difference]: Without dead ends: 3741 [2023-12-19 04:10:02,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 613 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:10:02,251 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 147 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:02,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 190 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 04:10:02,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3741 states. [2023-12-19 04:10:02,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3741 to 3385. [2023-12-19 04:10:02,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3385 states, 3384 states have (on average 1.0756501182033098) internal successors, (3640), 3384 states have internal predecessors, (3640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 3640 transitions. [2023-12-19 04:10:02,311 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 3640 transitions. Word has length 614 [2023-12-19 04:10:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:02,312 INFO L495 AbstractCegarLoop]: Abstraction has 3385 states and 3640 transitions. [2023-12-19 04:10:02,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:02,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 3640 transitions. [2023-12-19 04:10:02,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2023-12-19 04:10:02,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:02,319 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:02,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 04:10:02,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:02,530 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:02,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:02,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1252968499, now seen corresponding path program 1 times [2023-12-19 04:10:02,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:02,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756023591] [2023-12-19 04:10:02,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:02,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 904 proven. 195 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-19 04:10:03,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:03,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756023591] [2023-12-19 04:10:03,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756023591] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:10:03,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201794365] [2023-12-19 04:10:03,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:03,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:03,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:10:03,382 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:10:03,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 04:10:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:03,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 04:10:03,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:10:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2023-12-19 04:10:04,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 04:10:04,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201794365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:04,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 04:10:04,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-19 04:10:04,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733607910] [2023-12-19 04:10:04,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:04,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:04,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:04,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:10:04,811 INFO L87 Difference]: Start difference. First operand 3385 states and 3640 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:05,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:05,264 INFO L93 Difference]: Finished difference Result 6591 states and 7109 transitions. [2023-12-19 04:10:05,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:05,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 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 628 [2023-12-19 04:10:05,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:05,293 INFO L225 Difference]: With dead ends: 6591 [2023-12-19 04:10:05,293 INFO L226 Difference]: Without dead ends: 3563 [2023-12-19 04:10:05,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-19 04:10:05,298 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 29 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:05,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 46 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 04:10:05,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3563 states. [2023-12-19 04:10:05,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3563 to 3563. [2023-12-19 04:10:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3563 states, 3562 states have (on average 1.0679393599101628) internal successors, (3804), 3562 states have internal predecessors, (3804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:05,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 3804 transitions. [2023-12-19 04:10:05,404 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 3804 transitions. Word has length 628 [2023-12-19 04:10:05,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:05,405 INFO L495 AbstractCegarLoop]: Abstraction has 3563 states and 3804 transitions. [2023-12-19 04:10:05,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 3804 transitions. [2023-12-19 04:10:05,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2023-12-19 04:10:05,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:05,414 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:05,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 04:10:05,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-19 04:10:05,626 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:05,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:05,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1725400121, now seen corresponding path program 1 times [2023-12-19 04:10:05,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:05,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626022603] [2023-12-19 04:10:05,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:05,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:05,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1249 backedges. 900 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-12-19 04:10:05,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:05,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626022603] [2023-12-19 04:10:05,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626022603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:05,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:05,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:05,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187444136] [2023-12-19 04:10:05,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:05,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:05,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:05,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:05,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:05,964 INFO L87 Difference]: Start difference. First operand 3563 states and 3804 transitions. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:06,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:06,377 INFO L93 Difference]: Finished difference Result 8193 states and 8792 transitions. [2023-12-19 04:10:06,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:06,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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 650 [2023-12-19 04:10:06,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:06,385 INFO L225 Difference]: With dead ends: 8193 [2023-12-19 04:10:06,386 INFO L226 Difference]: Without dead ends: 4987 [2023-12-19 04:10:06,390 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 [2023-12-19 04:10:06,390 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:06,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 56 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 04:10:06,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2023-12-19 04:10:06,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4987. [2023-12-19 04:10:06,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 1.060369033293221) internal successors, (5287), 4986 states have internal predecessors, (5287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:06,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 5287 transitions. [2023-12-19 04:10:06,462 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 5287 transitions. Word has length 650 [2023-12-19 04:10:06,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:06,463 INFO L495 AbstractCegarLoop]: Abstraction has 4987 states and 5287 transitions. [2023-12-19 04:10:06,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:06,463 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 5287 transitions. [2023-12-19 04:10:06,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2023-12-19 04:10:06,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:06,472 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:06,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 04:10:06,472 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:06,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:06,473 INFO L85 PathProgramCache]: Analyzing trace with hash 337848011, now seen corresponding path program 1 times [2023-12-19 04:10:06,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:06,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662085492] [2023-12-19 04:10:06,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:06,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-12-19 04:10:07,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:07,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662085492] [2023-12-19 04:10:07,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662085492] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:10:07,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241460185] [2023-12-19 04:10:07,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:07,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:07,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:10:07,017 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:10:07,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 04:10:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:07,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 04:10:07,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:10:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-12-19 04:10:07,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 04:10:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1877 backedges. 1373 proven. 155 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-12-19 04:10:07,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241460185] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 04:10:07,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 04:10:07,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-12-19 04:10:07,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351367110] [2023-12-19 04:10:07,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 04:10:07,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 04:10:07,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:07,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 04:10:07,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-19 04:10:07,959 INFO L87 Difference]: Start difference. First operand 4987 states and 5287 transitions. Second operand has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:08,963 INFO L93 Difference]: Finished difference Result 11041 states and 11736 transitions. [2023-12-19 04:10:08,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 04:10:08,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 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 805 [2023-12-19 04:10:08,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:08,976 INFO L225 Difference]: With dead ends: 11041 [2023-12-19 04:10:08,976 INFO L226 Difference]: Without dead ends: 6411 [2023-12-19 04:10:08,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1612 GetRequests, 1608 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-19 04:10:08,982 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 72 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:08,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 62 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-19 04:10:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6411 states. [2023-12-19 04:10:09,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6411 to 5699. [2023-12-19 04:10:09,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5698 states have (on average 1.0603720603720603) internal successors, (6042), 5698 states have internal predecessors, (6042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:09,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 6042 transitions. [2023-12-19 04:10:09,069 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 6042 transitions. Word has length 805 [2023-12-19 04:10:09,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:09,070 INFO L495 AbstractCegarLoop]: Abstraction has 5699 states and 6042 transitions. [2023-12-19 04:10:09,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:09,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 6042 transitions. [2023-12-19 04:10:09,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2023-12-19 04:10:09,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:09,081 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:09,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 04:10:09,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-19 04:10:09,290 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:09,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:09,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1266991062, now seen corresponding path program 1 times [2023-12-19 04:10:09,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:09,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381679669] [2023-12-19 04:10:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:09,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:09,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2343 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2023-12-19 04:10:09,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:09,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381679669] [2023-12-19 04:10:09,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381679669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:09,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:09,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:09,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673861726] [2023-12-19 04:10:09,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:09,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:09,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:09,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:09,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:09,710 INFO L87 Difference]: Start difference. First operand 5699 states and 6042 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:10,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:10,152 INFO L93 Difference]: Finished difference Result 11575 states and 12322 transitions. [2023-12-19 04:10:10,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:10,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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 877 [2023-12-19 04:10:10,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:10,193 INFO L225 Difference]: With dead ends: 11575 [2023-12-19 04:10:10,193 INFO L226 Difference]: Without dead ends: 6233 [2023-12-19 04:10:10,197 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 [2023-12-19 04:10:10,198 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 109 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:10,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 29 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 04:10:10,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6233 states. [2023-12-19 04:10:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6233 to 6233. [2023-12-19 04:10:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6233 states, 6232 states have (on average 1.0563222079589216) internal successors, (6583), 6232 states have internal predecessors, (6583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:10,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6233 states to 6233 states and 6583 transitions. [2023-12-19 04:10:10,290 INFO L78 Accepts]: Start accepts. Automaton has 6233 states and 6583 transitions. Word has length 877 [2023-12-19 04:10:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:10,291 INFO L495 AbstractCegarLoop]: Abstraction has 6233 states and 6583 transitions. [2023-12-19 04:10:10,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:10,291 INFO L276 IsEmpty]: Start isEmpty. Operand 6233 states and 6583 transitions. [2023-12-19 04:10:10,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 896 [2023-12-19 04:10:10,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:10,302 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:10,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 04:10:10,302 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:10,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:10,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1948733385, now seen corresponding path program 1 times [2023-12-19 04:10:10,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:10,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697820653] [2023-12-19 04:10:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:10,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:11,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1590 proven. 93 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2023-12-19 04:10:11,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:11,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697820653] [2023-12-19 04:10:11,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697820653] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:10:11,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268998022] [2023-12-19 04:10:11,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:11,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:11,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:10:11,117 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:10:11,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 04:10:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:11,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 04:10:11,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:10:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2361 backedges. 1683 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2023-12-19 04:10:11,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 04:10:11,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268998022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:11,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 04:10:11,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-19 04:10:11,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402567304] [2023-12-19 04:10:11,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:11,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:11,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:11,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:11,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 04:10:11,805 INFO L87 Difference]: Start difference. First operand 6233 states and 6583 transitions. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:12,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:12,211 INFO L93 Difference]: Finished difference Result 12287 states and 12991 transitions. [2023-12-19 04:10:12,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:12,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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 895 [2023-12-19 04:10:12,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:12,221 INFO L225 Difference]: With dead ends: 12287 [2023-12-19 04:10:12,222 INFO L226 Difference]: Without dead ends: 6411 [2023-12-19 04:10:12,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 894 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 04:10:12,228 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:12,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 63 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 04:10:12,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6411 states. [2023-12-19 04:10:12,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6411 to 6233. [2023-12-19 04:10:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6233 states, 6232 states have (on average 1.0563222079589216) internal successors, (6583), 6232 states have internal predecessors, (6583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:12,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6233 states to 6233 states and 6583 transitions. [2023-12-19 04:10:12,311 INFO L78 Accepts]: Start accepts. Automaton has 6233 states and 6583 transitions. Word has length 895 [2023-12-19 04:10:12,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:12,311 INFO L495 AbstractCegarLoop]: Abstraction has 6233 states and 6583 transitions. [2023-12-19 04:10:12,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:12,312 INFO L276 IsEmpty]: Start isEmpty. Operand 6233 states and 6583 transitions. [2023-12-19 04:10:12,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 973 [2023-12-19 04:10:12,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:12,323 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:12,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 04:10:12,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:12,534 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:12,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:12,535 INFO L85 PathProgramCache]: Analyzing trace with hash -988506698, now seen corresponding path program 1 times [2023-12-19 04:10:12,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:12,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567837458] [2023-12-19 04:10:12,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:12,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:13,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2929 backedges. 981 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2023-12-19 04:10:13,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:13,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567837458] [2023-12-19 04:10:13,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567837458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:13,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:13,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:13,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349966304] [2023-12-19 04:10:13,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:13,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:13,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:13,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:13,372 INFO L87 Difference]: Start difference. First operand 6233 states and 6583 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:13,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:13,829 INFO L93 Difference]: Finished difference Result 11931 states and 12627 transitions. [2023-12-19 04:10:13,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:13,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 972 [2023-12-19 04:10:13,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:13,840 INFO L225 Difference]: With dead ends: 11931 [2023-12-19 04:10:13,840 INFO L226 Difference]: Without dead ends: 6055 [2023-12-19 04:10:13,846 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 [2023-12-19 04:10:13,846 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 64 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:13,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 224 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 04:10:13,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states. [2023-12-19 04:10:13,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 6055. [2023-12-19 04:10:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6055 states, 6054 states have (on average 1.0497191939213744) internal successors, (6355), 6054 states have internal predecessors, (6355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:13,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6055 states to 6055 states and 6355 transitions. [2023-12-19 04:10:13,940 INFO L78 Accepts]: Start accepts. Automaton has 6055 states and 6355 transitions. Word has length 972 [2023-12-19 04:10:13,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:13,941 INFO L495 AbstractCegarLoop]: Abstraction has 6055 states and 6355 transitions. [2023-12-19 04:10:13,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 6055 states and 6355 transitions. [2023-12-19 04:10:13,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1048 [2023-12-19 04:10:13,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:13,955 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:13,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 04:10:13,955 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:13,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash 732875496, now seen corresponding path program 1 times [2023-12-19 04:10:13,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:13,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154309646] [2023-12-19 04:10:13,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:13,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3560 backedges. 1091 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2023-12-19 04:10:14,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:14,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154309646] [2023-12-19 04:10:14,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154309646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 04:10:14,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 04:10:14,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 04:10:14,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548665336] [2023-12-19 04:10:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:14,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 04:10:14,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:14,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 04:10:14,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 04:10:14,717 INFO L87 Difference]: Start difference. First operand 6055 states and 6355 transitions. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:15,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:15,203 INFO L93 Difference]: Finished difference Result 11753 states and 12351 transitions. [2023-12-19 04:10:15,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 04:10:15,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 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 1047 [2023-12-19 04:10:15,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:15,215 INFO L225 Difference]: With dead ends: 11753 [2023-12-19 04:10:15,215 INFO L226 Difference]: Without dead ends: 6055 [2023-12-19 04:10:15,221 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 [2023-12-19 04:10:15,222 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 66 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:15,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 238 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 04:10:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6055 states. [2023-12-19 04:10:15,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6055 to 6055. [2023-12-19 04:10:15,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6055 states, 6054 states have (on average 1.0431119920713579) internal successors, (6315), 6054 states have internal predecessors, (6315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6055 states to 6055 states and 6315 transitions. [2023-12-19 04:10:15,303 INFO L78 Accepts]: Start accepts. Automaton has 6055 states and 6315 transitions. Word has length 1047 [2023-12-19 04:10:15,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:15,304 INFO L495 AbstractCegarLoop]: Abstraction has 6055 states and 6315 transitions. [2023-12-19 04:10:15,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 6055 states and 6315 transitions. [2023-12-19 04:10:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1096 [2023-12-19 04:10:15,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 04:10:15,320 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:15,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 04:10:15,320 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 04:10:15,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 04:10:15,321 INFO L85 PathProgramCache]: Analyzing trace with hash -549051792, now seen corresponding path program 1 times [2023-12-19 04:10:15,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 04:10:15,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643126913] [2023-12-19 04:10:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:15,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 04:10:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2746 proven. 72 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2023-12-19 04:10:16,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 04:10:16,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643126913] [2023-12-19 04:10:16,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643126913] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 04:10:16,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580939921] [2023-12-19 04:10:16,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 04:10:16,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:16,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 04:10:16,747 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 04:10:16,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 04:10:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 04:10:17,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 04:10:17,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 04:10:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2705 proven. 666 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-12-19 04:10:17,815 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 04:10:18,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3797 backedges. 2818 proven. 0 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2023-12-19 04:10:18,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580939921] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 04:10:18,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-19 04:10:18,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2023-12-19 04:10:18,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109497168] [2023-12-19 04:10:18,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 04:10:18,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 04:10:18,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 04:10:18,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 04:10:18,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-19 04:10:18,325 INFO L87 Difference]: Start difference. First operand 6055 states and 6315 transitions. Second operand has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:18,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 04:10:18,865 INFO L93 Difference]: Finished difference Result 11929 states and 12455 transitions. [2023-12-19 04:10:18,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 04:10:18,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 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 1095 [2023-12-19 04:10:18,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 04:10:18,866 INFO L225 Difference]: With dead ends: 11929 [2023-12-19 04:10:18,866 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 04:10:18,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2193 GetRequests, 2185 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-19 04:10:18,876 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 77 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 04:10:18,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 6 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 04:10:18,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 04:10:18,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 04:10:18,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:18,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 04:10:18,877 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1095 [2023-12-19 04:10:18,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 04:10:18,878 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 04:10:18,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 04:10:18,878 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 04:10:18,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 04:10:18,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 04:10:18,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 04:10:19,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 04:10:19,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 04:10:19,657 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2023-12-19 04:10:19,657 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-12-19 04:10:19,657 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2023-12-19 04:10:19,657 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2023-12-19 04:10:19,657 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2023-12-19 04:10:19,657 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,657 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,657 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2023-12-19 04:10:19,658 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2023-12-19 04:10:19,659 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,660 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2023-12-19 04:10:19,661 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,662 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2023-12-19 04:10:19,663 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2023-12-19 04:10:19,664 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2023-12-19 04:10:19,665 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2023-12-19 04:10:19,666 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2023-12-19 04:10:19,667 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 900) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2023-12-19 04:10:19,668 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 04:10:19,669 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2023-12-19 04:10:19,669 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2023-12-19 04:10:19,669 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,669 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,669 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-12-19 04:10:19,669 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,669 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2023-12-19 04:10:19,669 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse5 (<= ~a21~0 6)) (.cse1 (<= ~a15~0 8)) (.cse0 (= ~a24~0 1)) (.cse3 (= 7 ~a21~0)) (.cse4 (<= 0 (+ ~a12~0 42))) (.cse6 (<= 8 ~a15~0)) (.cse2 (<= ~a12~0 600060))) (or (and .cse0 .cse1 (<= 8 ~a21~0) .cse2) (and .cse0 .cse3 (<= ~a12~0 76) (not (= 7 ~a15~0)) .cse4) (and .cse0 .cse5 .cse4 .cse2) (and .cse0 (<= 10 ~a21~0) .cse2) (and .cse1 .cse5 (<= (+ 49 ~a12~0) 0)) (and (= ~a21~0 8) .cse0 .cse2) (and (<= ~a12~0 11) .cse0 .cse1) (and .cse0 (<= 81 ~a12~0) .cse6 .cse2) (and .cse0 .cse3 .cse4 .cse6 .cse2))) [2023-12-19 04:10:19,669 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2023-12-19 04:10:19,669 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2023-12-19 04:10:19,670 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,670 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2023-12-19 04:10:19,670 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2023-12-19 04:10:19,670 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2023-12-19 04:10:19,670 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2023-12-19 04:10:19,670 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,670 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,670 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2023-12-19 04:10:19,670 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2023-12-19 04:10:19,673 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 04:10:19,674 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 04:10:19,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:10:19 BoogieIcfgContainer [2023-12-19 04:10:19,693 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 04:10:19,696 INFO L158 Benchmark]: Toolchain (without parser) took 36511.21ms. Allocated memory was 282.1MB in the beginning and 964.7MB in the end (delta: 682.6MB). Free memory was 229.8MB in the beginning and 829.3MB in the end (delta: -599.6MB). Peak memory consumption was 567.0MB. Max. memory is 8.0GB. [2023-12-19 04:10:19,696 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 04:10:19,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.75ms. Allocated memory is still 282.1MB. Free memory was 229.3MB in the beginning and 195.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-12-19 04:10:19,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.14ms. Allocated memory is still 282.1MB. Free memory was 195.2MB in the beginning and 185.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-19 04:10:19,696 INFO L158 Benchmark]: Boogie Preprocessor took 153.61ms. Allocated memory is still 282.1MB. Free memory was 185.7MB in the beginning and 173.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 04:10:19,697 INFO L158 Benchmark]: RCFGBuilder took 1422.09ms. Allocated memory is still 282.1MB. Free memory was 173.2MB in the beginning and 169.4MB in the end (delta: 3.8MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2023-12-19 04:10:19,697 INFO L158 Benchmark]: TraceAbstraction took 34219.91ms. Allocated memory was 282.1MB in the beginning and 964.7MB in the end (delta: 682.6MB). Free memory was 168.9MB in the beginning and 829.3MB in the end (delta: -660.5MB). Peak memory consumption was 506.6MB. Max. memory is 8.0GB. [2023-12-19 04:10:19,698 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 606.75ms. Allocated memory is still 282.1MB. Free memory was 229.3MB in the beginning and 195.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 103.14ms. Allocated memory is still 282.1MB. Free memory was 195.2MB in the beginning and 185.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 153.61ms. Allocated memory is still 282.1MB. Free memory was 185.7MB in the beginning and 173.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1422.09ms. Allocated memory is still 282.1MB. Free memory was 173.2MB in the beginning and 169.4MB in the end (delta: 3.8MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * TraceAbstraction took 34219.91ms. Allocated memory was 282.1MB in the beginning and 964.7MB in the end (delta: 682.6MB). Free memory was 168.9MB in the beginning and 829.3MB in the end (delta: -660.5MB). Peak memory consumption was 506.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 125]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.1s, OverallIterations: 20, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2167 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2167 mSDsluCounter, 2270 SdHoareTripleChecker+Invalid, 8.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 1446 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10258 IncrementalHoareTripleChecker+Invalid, 11704 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1446 mSolverCounterUnsat, 2173 mSDtfsCounter, 10258 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7475 GetRequests, 7418 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6233occurred in iteration=16, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 2492 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 37 NumberOfFragments, 121 HoareAnnotationTreeSize, 1 FormulaSimplifications, 912 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 1 FormulaSimplificationsInter, 1014 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 17000 NumberOfCodeBlocks, 17000 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 18870 ConstructedInterpolants, 0 QuantifiedInterpolants, 54260 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6892 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 30 InterpolantComputations, 19 PerfectInterpolantSequences, 43872/45894 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((a24 == 1) && (a15 <= 8)) && (8 <= a21)) && (a12 <= 600060)) || (((((a24 == 1) && (7 == a21)) && (a12 <= 76)) && !((7 == a15))) && (0 <= (a12 + 42)))) || ((((a24 == 1) && (a21 <= 6)) && (0 <= (a12 + 42))) && (a12 <= 600060))) || (((a24 == 1) && (10 <= a21)) && (a12 <= 600060))) || (((a15 <= 8) && (a21 <= 6)) && ((49 + a12) <= 0))) || (((a21 == 8) && (a24 == 1)) && (a12 <= 600060))) || (((a12 <= 11) && (a24 == 1)) && (a15 <= 8))) || ((((a24 == 1) && (81 <= a12)) && (8 <= a15)) && (a12 <= 600060))) || (((((a24 == 1) && (7 == a21)) && (0 <= (a12 + 42))) && (8 <= a15)) && (a12 <= 600060))) RESULT: Ultimate proved your program to be correct! [2023-12-19 04:10:19,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...