/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:48:57,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:48:57,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:48:57,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:48:57,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:48:57,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:48:57,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:48:57,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:48:57,933 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:48:57,936 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:48:57,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:48:57,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:48:57,937 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:48:57,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:48:57,938 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:48:57,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:48:57,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:48:57,939 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:48:57,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:48:57,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:48:57,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:48:57,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:48:57,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:48:57,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:48:57,940 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:48:57,940 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:48:57,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:48:57,940 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:48:57,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:48:57,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:48:57,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:48:57,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:48:57,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:48:57,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:48:57,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:48:57,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:48:57,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:48:57,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:48:57,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:48:57,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:48:57,942 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:48:57,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:48:57,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:48:57,943 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:48:58,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:48:58,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:48:58,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:48:58,151 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:48:58,151 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:48:58,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2023-12-16 01:48:59,137 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:48:59,358 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:48:59,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2023-12-16 01:48:59,371 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e391447f1/84bb31a4c88b4dd9b769eb47cd1c7826/FLAG7b05a42f7 [2023-12-16 01:48:59,380 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e391447f1/84bb31a4c88b4dd9b769eb47cd1c7826 [2023-12-16 01:48:59,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:48:59,383 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:48:59,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:48:59,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:48:59,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:48:59,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:48:59,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4136cfe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59, skipping insertion in model container [2023-12-16 01:48:59,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:48:59,438 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:48:59,600 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/Problem10_label36.c[4555,4568] [2023-12-16 01:48:59,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:48:59,746 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:48:59,764 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/Problem10_label36.c[4555,4568] [2023-12-16 01:48:59,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:48:59,857 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:48:59,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59 WrapperNode [2023-12-16 01:48:59,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:48:59,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:48:59,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:48:59,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:48:59,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:48:59,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:48:59,939 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2023-12-16 01:48:59,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:48:59,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:48:59,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:48:59,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:48:59,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:48:59,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:48:59,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:48:59,995 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:48:59,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:48:59,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:49:00,011 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:49:00,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:49:00,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:49:00,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:49:00,030 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:49:00,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:49:00,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:49:00,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:49:00,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (1/1) ... [2023-12-16 01:49:00,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:49:00,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:49:00,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:49:00,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:49:00,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:49:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:49:00,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:49:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:49:00,151 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:49:00,153 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:49:01,051 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:49:01,119 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:49:01,119 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 01:49:01,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:49:01 BoogieIcfgContainer [2023-12-16 01:49:01,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:49:01,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:49:01,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:49:01,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:49:01,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:48:59" (1/3) ... [2023-12-16 01:49:01,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b390305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:49:01, skipping insertion in model container [2023-12-16 01:49:01,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:48:59" (2/3) ... [2023-12-16 01:49:01,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b390305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:49:01, skipping insertion in model container [2023-12-16 01:49:01,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:49:01" (3/3) ... [2023-12-16 01:49:01,127 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label36.c [2023-12-16 01:49:01,142 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:49:01,143 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 01:49:01,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:49:01,211 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;@375cc0a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:49:01,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 01:49:01,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:01,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-16 01:49:01,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:01,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:49:01,228 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:01,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:01,234 INFO L85 PathProgramCache]: Analyzing trace with hash 922312460, now seen corresponding path program 1 times [2023-12-16 01:49:01,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:01,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240087088] [2023-12-16 01:49:01,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:01,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:49:01,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:01,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240087088] [2023-12-16 01:49:01,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240087088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:01,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:49:01,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:49:01,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287408294] [2023-12-16 01:49:01,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:01,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 01:49:01,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:01,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 01:49:01,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:49:01,476 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 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 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:01,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:01,520 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2023-12-16 01:49:01,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 01:49:01,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2023-12-16 01:49:01,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:01,531 INFO L225 Difference]: With dead ends: 287 [2023-12-16 01:49:01,531 INFO L226 Difference]: Without dead ends: 142 [2023-12-16 01:49:01,534 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 [2023-12-16 01:49:01,536 INFO L413 NwaCegarLoop]: 217 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, 217 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 [2023-12-16 01:49:01,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:49:01,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-16 01:49:01,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-12-16 01:49:01,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 141 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:01,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2023-12-16 01:49:01,569 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 38 [2023-12-16 01:49:01,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:01,569 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2023-12-16 01:49:01,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:01,569 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2023-12-16 01:49:01,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-16 01:49:01,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:01,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:49:01,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:49:01,570 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:01,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:01,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2060698202, now seen corresponding path program 1 times [2023-12-16 01:49:01,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:01,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844965480] [2023-12-16 01:49:01,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:01,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:01,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:49:01,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:01,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844965480] [2023-12-16 01:49:01,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844965480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:01,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:49:01,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:49:01,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813362531] [2023-12-16 01:49:01,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:01,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:49:01,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:01,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:49:01,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:49:01,717 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:02,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:02,173 INFO L93 Difference]: Finished difference Result 422 states and 648 transitions. [2023-12-16 01:49:02,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:49:02,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 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 38 [2023-12-16 01:49:02,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:02,180 INFO L225 Difference]: With dead ends: 422 [2023-12-16 01:49:02,180 INFO L226 Difference]: Without dead ends: 281 [2023-12-16 01:49:02,183 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 [2023-12-16 01:49:02,184 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 108 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:02,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 65 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:49:02,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-16 01:49:02,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2023-12-16 01:49:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.3428571428571427) internal successors, (376), 280 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:02,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 376 transitions. [2023-12-16 01:49:02,204 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 376 transitions. Word has length 38 [2023-12-16 01:49:02,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:02,204 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 376 transitions. [2023-12-16 01:49:02,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 376 transitions. [2023-12-16 01:49:02,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 01:49:02,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:02,207 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-12-16 01:49:02,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:49:02,207 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:02,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:02,207 INFO L85 PathProgramCache]: Analyzing trace with hash -960959559, now seen corresponding path program 1 times [2023-12-16 01:49:02,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:02,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292062811] [2023-12-16 01:49:02,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:02,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:49:02,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:02,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292062811] [2023-12-16 01:49:02,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292062811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:02,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:49:02,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:49:02,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642799759] [2023-12-16 01:49:02,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:02,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:49:02,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:02,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:49:02,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:49:02,466 INFO L87 Difference]: Start difference. First operand 281 states and 376 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:02,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:02,845 INFO L93 Difference]: Finished difference Result 700 states and 966 transitions. [2023-12-16 01:49:02,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:49:02,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2023-12-16 01:49:02,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:02,847 INFO L225 Difference]: With dead ends: 700 [2023-12-16 01:49:02,847 INFO L226 Difference]: Without dead ends: 420 [2023-12-16 01:49:02,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:49:02,848 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 125 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:02,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 19 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:49:02,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-12-16 01:49:02,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2023-12-16 01:49:02,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.3842482100238664) internal successors, (580), 419 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:02,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 580 transitions. [2023-12-16 01:49:02,868 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 580 transitions. Word has length 104 [2023-12-16 01:49:02,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:02,873 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 580 transitions. [2023-12-16 01:49:02,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:02,875 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 580 transitions. [2023-12-16 01:49:02,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 01:49:02,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:02,878 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:49:02,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:49:02,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:02,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:02,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1956320407, now seen corresponding path program 1 times [2023-12-16 01:49:02,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:02,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244867808] [2023-12-16 01:49:02,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:02,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:03,099 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:49:03,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:03,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244867808] [2023-12-16 01:49:03,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244867808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:03,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:49:03,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:49:03,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225168972] [2023-12-16 01:49:03,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:03,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:49:03,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:03,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:49:03,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:49:03,101 INFO L87 Difference]: Start difference. First operand 420 states and 580 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:03,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:03,421 INFO L93 Difference]: Finished difference Result 978 states and 1318 transitions. [2023-12-16 01:49:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:49:03,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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 121 [2023-12-16 01:49:03,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:03,423 INFO L225 Difference]: With dead ends: 978 [2023-12-16 01:49:03,423 INFO L226 Difference]: Without dead ends: 559 [2023-12-16 01:49:03,424 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 [2023-12-16 01:49:03,427 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 58 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:03,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 75 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:49:03,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-16 01:49:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-12-16 01:49:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.3064516129032258) internal successors, (729), 558 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:03,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 729 transitions. [2023-12-16 01:49:03,439 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 729 transitions. Word has length 121 [2023-12-16 01:49:03,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:03,439 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 729 transitions. [2023-12-16 01:49:03,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:03,439 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 729 transitions. [2023-12-16 01:49:03,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 01:49:03,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:03,441 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:49:03,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:49:03,441 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:03,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash -218352341, now seen corresponding path program 1 times [2023-12-16 01:49:03,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:03,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549912717] [2023-12-16 01:49:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:03,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:49:03,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:03,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549912717] [2023-12-16 01:49:03,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549912717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:03,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:49:03,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:49:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714521509] [2023-12-16 01:49:03,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:03,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:49:03,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:03,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:49:03,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:49:03,544 INFO L87 Difference]: Start difference. First operand 559 states and 729 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:03,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:03,879 INFO L93 Difference]: Finished difference Result 1256 states and 1671 transitions. [2023-12-16 01:49:03,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:49:03,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 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 129 [2023-12-16 01:49:03,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:03,884 INFO L225 Difference]: With dead ends: 1256 [2023-12-16 01:49:03,884 INFO L226 Difference]: Without dead ends: 837 [2023-12-16 01:49:03,885 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 [2023-12-16 01:49:03,889 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:03,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 32 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:49:03,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-12-16 01:49:03,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2023-12-16 01:49:03,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.2284688995215312) internal successors, (1027), 836 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1027 transitions. [2023-12-16 01:49:03,905 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1027 transitions. Word has length 129 [2023-12-16 01:49:03,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:03,906 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 1027 transitions. [2023-12-16 01:49:03,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:03,907 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1027 transitions. [2023-12-16 01:49:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-16 01:49:03,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:03,914 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:49:03,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:49:03,914 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:03,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:03,914 INFO L85 PathProgramCache]: Analyzing trace with hash 430417828, now seen corresponding path program 1 times [2023-12-16 01:49:03,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:03,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088420997] [2023-12-16 01:49:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:03,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-12-16 01:49:04,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:04,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088420997] [2023-12-16 01:49:04,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088420997] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:49:04,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737474805] [2023-12-16 01:49:04,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:04,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:49:04,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:49:04,166 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) [2023-12-16 01:49:04,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:49:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:04,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:49:04,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:49:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-12-16 01:49:04,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:49:04,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737474805] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:04,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:49:04,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-12-16 01:49:04,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713363938] [2023-12-16 01:49:04,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:04,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:49:04,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:04,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:49:04,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:49:04,523 INFO L87 Difference]: Start difference. First operand 837 states and 1027 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:04,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:04,873 INFO L93 Difference]: Finished difference Result 1256 states and 1546 transitions. [2023-12-16 01:49:04,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:49:04,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 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 187 [2023-12-16 01:49:04,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:04,879 INFO L225 Difference]: With dead ends: 1256 [2023-12-16 01:49:04,879 INFO L226 Difference]: Without dead ends: 1254 [2023-12-16 01:49:04,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:49:04,880 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 96 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:04,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 9 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:49:04,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2023-12-16 01:49:04,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 976. [2023-12-16 01:49:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 1.2471794871794872) internal successors, (1216), 975 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1216 transitions. [2023-12-16 01:49:04,892 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1216 transitions. Word has length 187 [2023-12-16 01:49:04,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:04,893 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1216 transitions. [2023-12-16 01:49:04,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:04,893 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1216 transitions. [2023-12-16 01:49:04,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-16 01:49:04,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:04,895 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:49:04,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 01:49:05,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-16 01:49:05,104 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:05,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:05,104 INFO L85 PathProgramCache]: Analyzing trace with hash -964801077, now seen corresponding path program 1 times [2023-12-16 01:49:05,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:05,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200977930] [2023-12-16 01:49:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:05,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:05,260 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:49:05,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:05,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200977930] [2023-12-16 01:49:05,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200977930] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:05,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:49:05,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:49:05,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545274946] [2023-12-16 01:49:05,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:05,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:49:05,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:05,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:49:05,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:49:05,263 INFO L87 Difference]: Start difference. First operand 976 states and 1216 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:05,568 INFO L93 Difference]: Finished difference Result 1951 states and 2466 transitions. [2023-12-16 01:49:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:49:05,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 241 [2023-12-16 01:49:05,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:05,572 INFO L225 Difference]: With dead ends: 1951 [2023-12-16 01:49:05,572 INFO L226 Difference]: Without dead ends: 1115 [2023-12-16 01:49:05,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:49:05,573 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:05,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 212 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:49:05,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-16 01:49:05,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2023-12-16 01:49:05,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.2253141831238779) internal successors, (1365), 1114 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1365 transitions. [2023-12-16 01:49:05,586 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1365 transitions. Word has length 241 [2023-12-16 01:49:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:05,587 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1365 transitions. [2023-12-16 01:49:05,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:05,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1365 transitions. [2023-12-16 01:49:05,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-12-16 01:49:05,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:05,590 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:49:05,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:49:05,590 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:05,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:05,591 INFO L85 PathProgramCache]: Analyzing trace with hash -18753343, now seen corresponding path program 1 times [2023-12-16 01:49:05,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:05,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973326158] [2023-12-16 01:49:05,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:05,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:49:05,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:05,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973326158] [2023-12-16 01:49:05,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973326158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:05,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:49:05,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:49:05,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748877246] [2023-12-16 01:49:05,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:05,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:49:05,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:05,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:49:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:49:05,949 INFO L87 Difference]: Start difference. First operand 1115 states and 1365 transitions. Second operand has 7 states, 7 states have (on average 35.714285714285715) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:06,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:06,327 INFO L93 Difference]: Finished difference Result 2145 states and 2640 transitions. [2023-12-16 01:49:06,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:49:06,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.714285714285715) internal successors, (250), 6 states have internal predecessors, (250), 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 250 [2023-12-16 01:49:06,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:06,330 INFO L225 Difference]: With dead ends: 2145 [2023-12-16 01:49:06,330 INFO L226 Difference]: Without dead ends: 1115 [2023-12-16 01:49:06,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:49:06,332 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 142 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:06,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 21 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:49:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-16 01:49:06,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2023-12-16 01:49:06,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.2190305206463197) internal successors, (1358), 1114 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:06,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1358 transitions. [2023-12-16 01:49:06,343 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1358 transitions. Word has length 250 [2023-12-16 01:49:06,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:06,343 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1358 transitions. [2023-12-16 01:49:06,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.714285714285715) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:06,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1358 transitions. [2023-12-16 01:49:06,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-16 01:49:06,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:06,346 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, 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, 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, 1] [2023-12-16 01:49:06,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:49:06,346 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:06,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:06,347 INFO L85 PathProgramCache]: Analyzing trace with hash -46412953, now seen corresponding path program 1 times [2023-12-16 01:49:06,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:06,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379977511] [2023-12-16 01:49:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:06,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:06,658 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 41 proven. 32 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-12-16 01:49:06,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:06,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379977511] [2023-12-16 01:49:06,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379977511] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:49:06,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395173956] [2023-12-16 01:49:06,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:06,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:49:06,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:49:06,660 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) [2023-12-16 01:49:06,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 01:49:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:06,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:49:06,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:49:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-12-16 01:49:06,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:49:06,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395173956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:06,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:49:06,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 01:49:06,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810107115] [2023-12-16 01:49:06,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:06,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:49:06,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:06,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:49:06,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:49:06,810 INFO L87 Difference]: Start difference. First operand 1115 states and 1358 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:07,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:07,184 INFO L93 Difference]: Finished difference Result 1673 states and 2023 transitions. [2023-12-16 01:49:07,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:49:07,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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 286 [2023-12-16 01:49:07,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:07,189 INFO L225 Difference]: With dead ends: 1673 [2023-12-16 01:49:07,189 INFO L226 Difference]: Without dead ends: 1671 [2023-12-16 01:49:07,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:49:07,190 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 144 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:07,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 9 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 01:49:07,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2023-12-16 01:49:07,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1115. [2023-12-16 01:49:07,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.2190305206463197) internal successors, (1358), 1114 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:07,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1358 transitions. [2023-12-16 01:49:07,207 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1358 transitions. Word has length 286 [2023-12-16 01:49:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:07,207 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1358 transitions. [2023-12-16 01:49:07,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:07,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1358 transitions. [2023-12-16 01:49:07,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 01:49:07,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:07,211 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, 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, 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] [2023-12-16 01:49:07,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 01:49:07,417 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 [2023-12-16 01:49:07,418 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:07,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:07,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2097891751, now seen corresponding path program 1 times [2023-12-16 01:49:07,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:07,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633435916] [2023-12-16 01:49:07,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:07,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:07,734 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 310 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:49:07,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:07,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633435916] [2023-12-16 01:49:07,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633435916] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:49:07,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599342358] [2023-12-16 01:49:07,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:07,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:49:07,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:49:07,749 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) [2023-12-16 01:49:07,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 01:49:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:07,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:49:07,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:49:07,953 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-16 01:49:07,953 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:49:07,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599342358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:07,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:49:07,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 01:49:07,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366714872] [2023-12-16 01:49:07,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:07,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:49:07,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:07,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:49:07,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:49:07,955 INFO L87 Difference]: Start difference. First operand 1115 states and 1358 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:08,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:08,298 INFO L93 Difference]: Finished difference Result 2785 states and 3438 transitions. [2023-12-16 01:49:08,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:49:08,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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 [2023-12-16 01:49:08,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:08,303 INFO L225 Difference]: With dead ends: 2785 [2023-12-16 01:49:08,303 INFO L226 Difference]: Without dead ends: 1810 [2023-12-16 01:49:08,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:49:08,305 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:08,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 197 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:49:08,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2023-12-16 01:49:08,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1810. [2023-12-16 01:49:08,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 1809 states have (on average 1.1818684355997788) internal successors, (2138), 1809 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 2138 transitions. [2023-12-16 01:49:08,327 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 2138 transitions. Word has length 338 [2023-12-16 01:49:08,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:08,327 INFO L495 AbstractCegarLoop]: Abstraction has 1810 states and 2138 transitions. [2023-12-16 01:49:08,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 2138 transitions. [2023-12-16 01:49:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-16 01:49:08,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:49:08,331 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, 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, 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] [2023-12-16 01:49:08,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 01:49:08,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:49:08,536 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:49:08,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:49:08,537 INFO L85 PathProgramCache]: Analyzing trace with hash -389693887, now seen corresponding path program 1 times [2023-12-16 01:49:08,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:49:08,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363807238] [2023-12-16 01:49:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:08,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:49:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 92 proven. 18 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-12-16 01:49:08,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:49:08,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363807238] [2023-12-16 01:49:08,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363807238] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:49:08,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123965159] [2023-12-16 01:49:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:49:08,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:49:08,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:49:08,981 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) [2023-12-16 01:49:08,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 01:49:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:49:09,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:49:09,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:49:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-12-16 01:49:09,119 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:49:09,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123965159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:49:09,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:49:09,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 01:49:09,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232803328] [2023-12-16 01:49:09,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:49:09,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:49:09,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:49:09,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:49:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:49:09,121 INFO L87 Difference]: Start difference. First operand 1810 states and 2138 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:09,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:49:09,440 INFO L93 Difference]: Finished difference Result 3756 states and 4457 transitions. [2023-12-16 01:49:09,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:49:09,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 351 [2023-12-16 01:49:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:49:09,441 INFO L225 Difference]: With dead ends: 3756 [2023-12-16 01:49:09,441 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 01:49:09,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:49:09,443 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 103 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:49:09,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 219 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:49:09,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 01:49:09,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 01:49:09,444 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) [2023-12-16 01:49:09,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 01:49:09,444 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 351 [2023-12-16 01:49:09,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:49:09,444 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 01:49:09,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:49:09,445 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 01:49:09,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 01:49:09,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 01:49:09,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 01:49:09,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:49:09,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 01:49:09,788 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2023-12-16 01:49:09,788 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2023-12-16 01:49:09,788 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2023-12-16 01:49:09,788 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2023-12-16 01:49:09,789 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2023-12-16 01:49:09,790 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2023-12-16 01:49:09,791 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,792 INFO L899 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,793 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 602) no Hoare annotation was computed. [2023-12-16 01:49:09,794 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,795 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2023-12-16 01:49:09,796 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and (<= ~a19~0 6) .cse0 .cse1) (and (not (= ~a10~0 4)) .cse0 .cse1) (and (<= ~a19~0 9) (<= 8 ~a19~0) .cse0 .cse1))) [2023-12-16 01:49:09,796 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2023-12-16 01:49:09,797 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2023-12-16 01:49:09,798 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,798 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2023-12-16 01:49:09,798 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2023-12-16 01:49:09,798 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2023-12-16 01:49:09,799 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2023-12-16 01:49:09,799 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2023-12-16 01:49:09,799 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,799 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,799 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,799 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,799 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,799 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2023-12-16 01:49:09,799 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2023-12-16 01:49:09,800 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2023-12-16 01:49:09,800 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2023-12-16 01:49:09,802 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:49:09,803 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:49:09,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:49:09 BoogieIcfgContainer [2023-12-16 01:49:09,814 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:49:09,814 INFO L158 Benchmark]: Toolchain (without parser) took 10431.68ms. Allocated memory was 303.0MB in the beginning and 446.7MB in the end (delta: 143.7MB). Free memory was 254.3MB in the beginning and 376.3MB in the end (delta: -122.0MB). Peak memory consumption was 253.1MB. Max. memory is 8.0GB. [2023-12-16 01:49:09,814 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 205.5MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:49:09,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.22ms. Allocated memory is still 303.0MB. Free memory was 254.3MB in the beginning and 225.8MB in the end (delta: 28.6MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-16 01:49:09,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.34ms. Allocated memory is still 303.0MB. Free memory was 225.8MB in the beginning and 217.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 01:49:09,815 INFO L158 Benchmark]: Boogie Preprocessor took 90.67ms. Allocated memory is still 303.0MB. Free memory was 217.6MB in the beginning and 207.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-16 01:49:09,815 INFO L158 Benchmark]: RCFGBuilder took 1088.77ms. Allocated memory is still 303.0MB. Free memory was 207.5MB in the beginning and 188.1MB in the end (delta: 19.4MB). Peak memory consumption was 19.8MB. Max. memory is 8.0GB. [2023-12-16 01:49:09,816 INFO L158 Benchmark]: TraceAbstraction took 8692.51ms. Allocated memory was 303.0MB in the beginning and 446.7MB in the end (delta: 143.7MB). Free memory was 187.1MB in the beginning and 376.3MB in the end (delta: -189.3MB). Peak memory consumption was 185.1MB. Max. memory is 8.0GB. [2023-12-16 01:49:09,817 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 205.5MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 474.22ms. Allocated memory is still 303.0MB. Free memory was 254.3MB in the beginning and 225.8MB in the end (delta: 28.6MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 81.34ms. Allocated memory is still 303.0MB. Free memory was 225.8MB in the beginning and 217.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 90.67ms. Allocated memory is still 303.0MB. Free memory was 217.6MB in the beginning and 207.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1088.77ms. Allocated memory is still 303.0MB. Free memory was 207.5MB in the beginning and 188.1MB in the end (delta: 19.4MB). Peak memory consumption was 19.8MB. Max. memory is 8.0GB. * TraceAbstraction took 8692.51ms. Allocated memory was 303.0MB in the beginning and 446.7MB in the end (delta: 143.7MB). Free memory was 187.1MB in the beginning and 376.3MB in the end (delta: -189.3MB). Peak memory consumption was 185.1MB. 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: 131]: 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, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.6s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 892 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 892 mSDsluCounter, 1075 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 568 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3903 IncrementalHoareTripleChecker+Invalid, 4471 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 568 mSolverCounterUnsat, 1027 mSDtfsCounter, 3903 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1198 GetRequests, 1170 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1810occurred in iteration=10, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 834 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 17 NumberOfFragments, 35 HoareAnnotationTreeSize, 1 FormulaSimplifications, 291 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FormulaSimplificationsInter, 396 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 3245 NumberOfCodeBlocks, 3245 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3230 ConstructedInterpolants, 0 QuantifiedInterpolants, 13494 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1630 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 2362/2507 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: 592]: Loop Invariant Derived loop invariant: (((((a19 <= 6) && (14 == a4)) && (a12 == 0)) || ((!((a10 == 4)) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (8 <= a19)) && (14 == a4)) && (a12 == 0))) RESULT: Ultimate proved your program to be correct! [2023-12-16 01:49:09,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...