/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/Problem14_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 17:12:44,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 17:12:44,767 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 17:12:44,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 17:12:44,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 17:12:44,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 17:12:44,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 17:12:44,805 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 17:12:44,806 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 17:12:44,810 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 17:12:44,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 17:12:44,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 17:12:44,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 17:12:44,812 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 17:12:44,812 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 17:12:44,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 17:12:44,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 17:12:44,813 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 17:12:44,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 17:12:44,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 17:12:44,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 17:12:44,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 17:12:44,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 17:12:44,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 17:12:44,815 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 17:12:44,815 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 17:12:44,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 17:12:44,816 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 17:12:44,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 17:12:44,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 17:12:44,817 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 17:12:44,817 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 17:12:44,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 17:12:44,818 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 17:12:44,818 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 17:12:44,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 17:12:44,818 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 17:12:44,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 17:12:44,818 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 17:12:44,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 17:12:44,819 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 17:12:44,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 17:12:44,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 17:12:44,819 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 17:12:45,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 17:12:45,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 17:12:45,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 17:12:45,066 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 17:12:45,066 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 17:12:45,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label15.c [2023-12-20 17:12:46,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 17:12:46,483 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 17:12:46,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label15.c [2023-12-20 17:12:46,497 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72eaeb88c/de6d1da237a54c22a31b3a251ab271e3/FLAG03ceb3ed1 [2023-12-20 17:12:46,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72eaeb88c/de6d1da237a54c22a31b3a251ab271e3 [2023-12-20 17:12:46,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 17:12:46,519 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 17:12:46,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 17:12:46,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 17:12:46,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 17:12:46,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 05:12:46" (1/1) ... [2023-12-20 17:12:46,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42ca432f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:46, skipping insertion in model container [2023-12-20 17:12:46,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 05:12:46" (1/1) ... [2023-12-20 17:12:46,580 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 17:12:46,790 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label15.c[6619,6632] [2023-12-20 17:12:46,945 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 17:12:46,955 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 17:12:46,993 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label15.c[6619,6632] [2023-12-20 17:12:47,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 17:12:47,095 INFO L206 MainTranslator]: Completed translation [2023-12-20 17:12:47,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47 WrapperNode [2023-12-20 17:12:47,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 17:12:47,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 17:12:47,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 17:12:47,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 17:12:47,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,185 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2023-12-20 17:12:47,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 17:12:47,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 17:12:47,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 17:12:47,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 17:12:47,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,203 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,232 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]. [2023-12-20 17:12:47,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 17:12:47,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 17:12:47,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 17:12:47,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 17:12:47,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (1/1) ... [2023-12-20 17:12:47,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 17:12:47,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 17:12:47,333 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) [2023-12-20 17:12:47,348 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 [2023-12-20 17:12:47,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 17:12:47,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 17:12:47,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 17:12:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 17:12:47,461 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 17:12:47,464 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 17:12:48,514 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 17:12:48,578 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 17:12:48,578 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 17:12:48,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 05:12:48 BoogieIcfgContainer [2023-12-20 17:12:48,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 17:12:48,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 17:12:48,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 17:12:48,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 17:12:48,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 05:12:46" (1/3) ... [2023-12-20 17:12:48,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70377433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 05:12:48, skipping insertion in model container [2023-12-20 17:12:48,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 05:12:47" (2/3) ... [2023-12-20 17:12:48,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70377433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 05:12:48, skipping insertion in model container [2023-12-20 17:12:48,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 05:12:48" (3/3) ... [2023-12-20 17:12:48,590 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label15.c [2023-12-20 17:12:48,603 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 17:12:48,603 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 17:12:48,656 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 17:12:48,663 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;@1288498b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 17:12:48,663 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 17:12:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 17:12:48,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 17:12:48,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:48,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:12:48,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:48,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:48,690 INFO L85 PathProgramCache]: Analyzing trace with hash -686964549, now seen corresponding path program 1 times [2023-12-20 17:12:48,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:48,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446684658] [2023-12-20 17:12:48,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:48,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:48,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 17:12:48,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:48,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446684658] [2023-12-20 17:12:48,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446684658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:48,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:12:48,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 17:12:48,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563983375] [2023-12-20 17:12:48,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:48,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 17:12:48,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:48,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 17:12:48,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 17:12:48,914 INFO L87 Difference]: Start difference. First operand has 183 states, 181 states have (on average 1.988950276243094) internal successors, (360), 182 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-12-20 17:12:48,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:48,963 INFO L93 Difference]: Finished difference Result 365 states and 719 transitions. [2023-12-20 17:12:48,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 17:12:48,967 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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 64 [2023-12-20 17:12:48,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:48,980 INFO L225 Difference]: With dead ends: 365 [2023-12-20 17:12:48,981 INFO L226 Difference]: Without dead ends: 181 [2023-12-20 17:12:48,985 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 [2023-12-20 17:12:48,989 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:48,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 17:12:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-20 17:12:49,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-12-20 17:12:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.6388888888888888) internal successors, (295), 180 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 17:12:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 295 transitions. [2023-12-20 17:12:49,047 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 295 transitions. Word has length 64 [2023-12-20 17:12:49,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:49,047 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 295 transitions. [2023-12-20 17:12:49,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-12-20 17:12:49,048 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 295 transitions. [2023-12-20 17:12:49,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 17:12:49,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:49,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:12:49,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 17:12:49,050 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:49,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:49,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1812181628, now seen corresponding path program 1 times [2023-12-20 17:12:49,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:49,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317996033] [2023-12-20 17:12:49,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:49,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 17:12:49,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:49,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317996033] [2023-12-20 17:12:49,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317996033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:49,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:12:49,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 17:12:49,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547111290] [2023-12-20 17:12:49,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:49,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:12:49,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:49,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:12:49,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 17:12:49,286 INFO L87 Difference]: Start difference. First operand 181 states and 295 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-12-20 17:12:50,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:50,072 INFO L93 Difference]: Finished difference Result 539 states and 882 transitions. [2023-12-20 17:12:50,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:12:50,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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 64 [2023-12-20 17:12:50,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:50,075 INFO L225 Difference]: With dead ends: 539 [2023-12-20 17:12:50,075 INFO L226 Difference]: Without dead ends: 359 [2023-12-20 17:12:50,076 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 [2023-12-20 17:12:50,077 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 134 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:50,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 87 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 17:12:50,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-20 17:12:50,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2023-12-20 17:12:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 1.4217877094972067) internal successors, (509), 358 states have internal predecessors, (509), 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) [2023-12-20 17:12:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 509 transitions. [2023-12-20 17:12:50,095 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 509 transitions. Word has length 64 [2023-12-20 17:12:50,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:50,095 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 509 transitions. [2023-12-20 17:12:50,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 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) [2023-12-20 17:12:50,096 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 509 transitions. [2023-12-20 17:12:50,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-20 17:12:50,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:50,098 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:12:50,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 17:12:50,098 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:50,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:50,099 INFO L85 PathProgramCache]: Analyzing trace with hash 2085951228, now seen corresponding path program 1 times [2023-12-20 17:12:50,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:50,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86011401] [2023-12-20 17:12:50,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:50,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:50,580 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 17:12:50,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:50,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86011401] [2023-12-20 17:12:50,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86011401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:50,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:12:50,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 17:12:50,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275041088] [2023-12-20 17:12:50,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:50,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 17:12:50,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:50,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 17:12:50,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 17:12:50,607 INFO L87 Difference]: Start difference. First operand 359 states and 509 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 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) [2023-12-20 17:12:51,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:51,541 INFO L93 Difference]: Finished difference Result 1073 states and 1445 transitions. [2023-12-20 17:12:51,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 17:12:51,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 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 143 [2023-12-20 17:12:51,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:51,545 INFO L225 Difference]: With dead ends: 1073 [2023-12-20 17:12:51,545 INFO L226 Difference]: Without dead ends: 715 [2023-12-20 17:12:51,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 17:12:51,547 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 418 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:51,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 119 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 17:12:51,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-12-20 17:12:51,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-12-20 17:12:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 714 states have (on average 1.2619047619047619) internal successors, (901), 714 states have internal predecessors, (901), 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) [2023-12-20 17:12:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 901 transitions. [2023-12-20 17:12:51,576 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 901 transitions. Word has length 143 [2023-12-20 17:12:51,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:51,576 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 901 transitions. [2023-12-20 17:12:51,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 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) [2023-12-20 17:12:51,577 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 901 transitions. [2023-12-20 17:12:51,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-20 17:12:51,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:51,580 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, 2, 2, 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] [2023-12-20 17:12:51,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 17:12:51,580 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:51,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:51,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1250721565, now seen corresponding path program 1 times [2023-12-20 17:12:51,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:51,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205188844] [2023-12-20 17:12:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:51,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:51,887 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 17:12:51,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:51,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205188844] [2023-12-20 17:12:51,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205188844] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 17:12:51,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450203418] [2023-12-20 17:12:51,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:51,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:12:51,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 17:12:51,896 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) [2023-12-20 17:12:51,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 17:12:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:52,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 17:12:52,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 17:12:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-20 17:12:52,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 17:12:52,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450203418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:52,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 17:12:52,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-12-20 17:12:52,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921775750] [2023-12-20 17:12:52,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:52,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:12:52,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:12:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 17:12:52,244 INFO L87 Difference]: Start difference. First operand 715 states and 901 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2023-12-20 17:12:52,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:52,843 INFO L93 Difference]: Finished difference Result 1251 states and 1611 transitions. [2023-12-20 17:12:52,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:12:52,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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 169 [2023-12-20 17:12:52,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:52,851 INFO L225 Difference]: With dead ends: 1251 [2023-12-20 17:12:52,851 INFO L226 Difference]: Without dead ends: 1249 [2023-12-20 17:12:52,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 17:12:52,852 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 91 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:52,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 34 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 17:12:52,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-12-20 17:12:52,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 893. [2023-12-20 17:12:52,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 892 states have (on average 1.3374439461883407) internal successors, (1193), 892 states have internal predecessors, (1193), 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) [2023-12-20 17:12:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1193 transitions. [2023-12-20 17:12:52,878 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1193 transitions. Word has length 169 [2023-12-20 17:12:52,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:52,879 INFO L495 AbstractCegarLoop]: Abstraction has 893 states and 1193 transitions. [2023-12-20 17:12:52,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2023-12-20 17:12:52,879 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1193 transitions. [2023-12-20 17:12:52,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-12-20 17:12:52,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:52,886 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, 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, 1, 1, 1, 1, 1, 1] [2023-12-20 17:12:52,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 17:12:53,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:12:53,093 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:53,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:53,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1466948183, now seen corresponding path program 1 times [2023-12-20 17:12:53,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:53,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852486999] [2023-12-20 17:12:53,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:53,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:53,321 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-20 17:12:53,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:53,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852486999] [2023-12-20 17:12:53,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852486999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:53,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:12:53,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 17:12:53,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748050054] [2023-12-20 17:12:53,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:53,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 17:12:53,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:53,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 17:12:53,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 17:12:53,324 INFO L87 Difference]: Start difference. First operand 893 states and 1193 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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) [2023-12-20 17:12:53,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:53,943 INFO L93 Difference]: Finished difference Result 1992 states and 2628 transitions. [2023-12-20 17:12:53,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 17:12:53,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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 223 [2023-12-20 17:12:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:53,949 INFO L225 Difference]: With dead ends: 1992 [2023-12-20 17:12:53,950 INFO L226 Difference]: Without dead ends: 1071 [2023-12-20 17:12:53,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 17:12:53,956 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 116 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:53,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 116 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 17:12:53,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-12-20 17:12:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2023-12-20 17:12:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.1803738317757009) internal successors, (1263), 1070 states have internal predecessors, (1263), 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) [2023-12-20 17:12:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1263 transitions. [2023-12-20 17:12:53,976 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1263 transitions. Word has length 223 [2023-12-20 17:12:53,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:53,976 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1263 transitions. [2023-12-20 17:12:53,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 3 states have internal predecessors, (190), 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) [2023-12-20 17:12:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1263 transitions. [2023-12-20 17:12:53,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-20 17:12:53,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:53,979 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:12:53,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 17:12:53,980 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:53,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:53,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1337264915, now seen corresponding path program 1 times [2023-12-20 17:12:53,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:53,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62639264] [2023-12-20 17:12:53,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:53,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:54,315 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 125 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 17:12:54,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:54,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62639264] [2023-12-20 17:12:54,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62639264] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 17:12:54,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068101050] [2023-12-20 17:12:54,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:54,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:12:54,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 17:12:54,321 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) [2023-12-20 17:12:54,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 17:12:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:54,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 17:12:54,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 17:12:54,670 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-20 17:12:54,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 17:12:54,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068101050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:54,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 17:12:54,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-20 17:12:54,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058129302] [2023-12-20 17:12:54,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:54,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:12:54,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:54,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:12:54,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 17:12:54,677 INFO L87 Difference]: Start difference. First operand 1071 states and 1263 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 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) [2023-12-20 17:12:55,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:55,188 INFO L93 Difference]: Finished difference Result 2319 states and 2778 transitions. [2023-12-20 17:12:55,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:12:55,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 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 235 [2023-12-20 17:12:55,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:55,193 INFO L225 Difference]: With dead ends: 2319 [2023-12-20 17:12:55,193 INFO L226 Difference]: Without dead ends: 1249 [2023-12-20 17:12:55,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 17:12:55,195 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 84 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:55,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 45 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 17:12:55,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-12-20 17:12:55,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1071. [2023-12-20 17:12:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 1.1672897196261682) internal successors, (1249), 1070 states have internal predecessors, (1249), 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) [2023-12-20 17:12:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1249 transitions. [2023-12-20 17:12:55,212 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1249 transitions. Word has length 235 [2023-12-20 17:12:55,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:55,212 INFO L495 AbstractCegarLoop]: Abstraction has 1071 states and 1249 transitions. [2023-12-20 17:12:55,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 2 states have internal predecessors, (171), 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) [2023-12-20 17:12:55,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1249 transitions. [2023-12-20 17:12:55,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-20 17:12:55,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:55,215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:12:55,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 17:12:55,422 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,SelfDestructingSolverStorable5 [2023-12-20 17:12:55,422 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:55,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:55,422 INFO L85 PathProgramCache]: Analyzing trace with hash -511155190, now seen corresponding path program 1 times [2023-12-20 17:12:55,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:55,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142571689] [2023-12-20 17:12:55,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:55,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 17:12:55,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:55,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142571689] [2023-12-20 17:12:55,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142571689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:55,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:12:55,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 17:12:55,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337994486] [2023-12-20 17:12:55,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:55,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:12:55,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:55,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:12:55,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 17:12:55,667 INFO L87 Difference]: Start difference. First operand 1071 states and 1249 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-12-20 17:12:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:56,198 INFO L93 Difference]: Finished difference Result 2853 states and 3361 transitions. [2023-12-20 17:12:56,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:12:56,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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 238 [2023-12-20 17:12:56,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:56,206 INFO L225 Difference]: With dead ends: 2853 [2023-12-20 17:12:56,206 INFO L226 Difference]: Without dead ends: 1783 [2023-12-20 17:12:56,207 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 [2023-12-20 17:12:56,208 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 111 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:56,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 74 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 17:12:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2023-12-20 17:12:56,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1783. [2023-12-20 17:12:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1782 states have (on average 1.1290684624017957) internal successors, (2012), 1782 states have internal predecessors, (2012), 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) [2023-12-20 17:12:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 2012 transitions. [2023-12-20 17:12:56,238 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 2012 transitions. Word has length 238 [2023-12-20 17:12:56,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:56,238 INFO L495 AbstractCegarLoop]: Abstraction has 1783 states and 2012 transitions. [2023-12-20 17:12:56,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 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) [2023-12-20 17:12:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 2012 transitions. [2023-12-20 17:12:56,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2023-12-20 17:12:56,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:56,243 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, 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, 2, 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] [2023-12-20 17:12:56,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 17:12:56,244 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:56,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:56,244 INFO L85 PathProgramCache]: Analyzing trace with hash 782578460, now seen corresponding path program 1 times [2023-12-20 17:12:56,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:56,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430240626] [2023-12-20 17:12:56,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:56,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:56,545 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-12-20 17:12:56,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:56,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430240626] [2023-12-20 17:12:56,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430240626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:56,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:12:56,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 17:12:56,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368587494] [2023-12-20 17:12:56,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:56,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 17:12:56,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:56,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 17:12:56,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 17:12:56,548 INFO L87 Difference]: Start difference. First operand 1783 states and 2012 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 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) [2023-12-20 17:12:57,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:57,147 INFO L93 Difference]: Finished difference Result 3623 states and 4104 transitions. [2023-12-20 17:12:57,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 17:12:57,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 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 355 [2023-12-20 17:12:57,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:57,153 INFO L225 Difference]: With dead ends: 3623 [2023-12-20 17:12:57,153 INFO L226 Difference]: Without dead ends: 1961 [2023-12-20 17:12:57,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-20 17:12:57,156 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 124 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:57,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 14 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 17:12:57,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2023-12-20 17:12:57,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1783. [2023-12-20 17:12:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1783 states, 1782 states have (on average 1.084736251402918) internal successors, (1933), 1782 states have internal predecessors, (1933), 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) [2023-12-20 17:12:57,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1783 states to 1783 states and 1933 transitions. [2023-12-20 17:12:57,184 INFO L78 Accepts]: Start accepts. Automaton has 1783 states and 1933 transitions. Word has length 355 [2023-12-20 17:12:57,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:57,184 INFO L495 AbstractCegarLoop]: Abstraction has 1783 states and 1933 transitions. [2023-12-20 17:12:57,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 3 states have internal predecessors, (173), 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) [2023-12-20 17:12:57,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1783 states and 1933 transitions. [2023-12-20 17:12:57,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-12-20 17:12:57,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:57,191 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1] [2023-12-20 17:12:57,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 17:12:57,191 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:57,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:57,192 INFO L85 PathProgramCache]: Analyzing trace with hash -345047094, now seen corresponding path program 1 times [2023-12-20 17:12:57,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:57,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677817019] [2023-12-20 17:12:57,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:57,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:57,617 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-12-20 17:12:57,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:57,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677817019] [2023-12-20 17:12:57,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677817019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:57,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:12:57,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 17:12:57,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395974958] [2023-12-20 17:12:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:57,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:12:57,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:57,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:12:57,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 17:12:57,620 INFO L87 Difference]: Start difference. First operand 1783 states and 1933 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-12-20 17:12:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:58,126 INFO L93 Difference]: Finished difference Result 4277 states and 4674 transitions. [2023-12-20 17:12:58,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:12:58,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 450 [2023-12-20 17:12:58,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:58,135 INFO L225 Difference]: With dead ends: 4277 [2023-12-20 17:12:58,135 INFO L226 Difference]: Without dead ends: 2673 [2023-12-20 17:12:58,137 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 [2023-12-20 17:12:58,137 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 110 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:58,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 242 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 17:12:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2023-12-20 17:12:58,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 2139. [2023-12-20 17:12:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2139 states, 2138 states have (on average 1.0720299345182414) internal successors, (2292), 2138 states have internal predecessors, (2292), 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) [2023-12-20 17:12:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 2292 transitions. [2023-12-20 17:12:58,174 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 2292 transitions. Word has length 450 [2023-12-20 17:12:58,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:58,174 INFO L495 AbstractCegarLoop]: Abstraction has 2139 states and 2292 transitions. [2023-12-20 17:12:58,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-12-20 17:12:58,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 2292 transitions. [2023-12-20 17:12:58,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2023-12-20 17:12:58,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:58,181 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:12:58,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 17:12:58,181 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:58,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:58,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1675878437, now seen corresponding path program 1 times [2023-12-20 17:12:58,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:58,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032850878] [2023-12-20 17:12:58,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:58,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:58,562 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-12-20 17:12:58,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:58,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032850878] [2023-12-20 17:12:58,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032850878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:58,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:12:58,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 17:12:58,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347876856] [2023-12-20 17:12:58,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:58,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:12:58,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:58,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:12:58,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 17:12:58,566 INFO L87 Difference]: Start difference. First operand 2139 states and 2292 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 17:12:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:59,087 INFO L93 Difference]: Finished difference Result 4811 states and 5227 transitions. [2023-12-20 17:12:59,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:12:59,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 457 [2023-12-20 17:12:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:59,097 INFO L225 Difference]: With dead ends: 4811 [2023-12-20 17:12:59,098 INFO L226 Difference]: Without dead ends: 2851 [2023-12-20 17:12:59,100 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 [2023-12-20 17:12:59,101 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 113 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:59,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 199 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 17:12:59,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2023-12-20 17:12:59,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2851. [2023-12-20 17:12:59,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2850 states have (on average 1.07859649122807) internal successors, (3074), 2850 states have internal predecessors, (3074), 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) [2023-12-20 17:12:59,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 3074 transitions. [2023-12-20 17:12:59,156 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 3074 transitions. Word has length 457 [2023-12-20 17:12:59,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:12:59,157 INFO L495 AbstractCegarLoop]: Abstraction has 2851 states and 3074 transitions. [2023-12-20 17:12:59,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 17:12:59,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 3074 transitions. [2023-12-20 17:12:59,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2023-12-20 17:12:59,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:12:59,166 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:12:59,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 17:12:59,166 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:12:59,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:12:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1895145814, now seen corresponding path program 1 times [2023-12-20 17:12:59,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:12:59,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663896045] [2023-12-20 17:12:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:12:59,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:12:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:12:59,447 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 571 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-12-20 17:12:59,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:12:59,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663896045] [2023-12-20 17:12:59,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663896045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:12:59,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:12:59,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 17:12:59,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958070680] [2023-12-20 17:12:59,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:12:59,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:12:59,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:12:59,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:12:59,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 17:12:59,450 INFO L87 Difference]: Start difference. First operand 2851 states and 3074 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2023-12-20 17:12:59,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:12:59,967 INFO L93 Difference]: Finished difference Result 6591 states and 7211 transitions. [2023-12-20 17:12:59,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:12:59,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 498 [2023-12-20 17:12:59,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:12:59,980 INFO L225 Difference]: With dead ends: 6591 [2023-12-20 17:12:59,983 INFO L226 Difference]: Without dead ends: 3919 [2023-12-20 17:12:59,988 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 [2023-12-20 17:12:59,989 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 17:12:59,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 50 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 17:12:59,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2023-12-20 17:13:00,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 3563. [2023-12-20 17:13:00,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3563 states, 3562 states have (on average 1.0783267827063447) internal successors, (3841), 3562 states have internal predecessors, (3841), 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) [2023-12-20 17:13:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3563 states to 3563 states and 3841 transitions. [2023-12-20 17:13:00,058 INFO L78 Accepts]: Start accepts. Automaton has 3563 states and 3841 transitions. Word has length 498 [2023-12-20 17:13:00,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:13:00,058 INFO L495 AbstractCegarLoop]: Abstraction has 3563 states and 3841 transitions. [2023-12-20 17:13:00,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2023-12-20 17:13:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3563 states and 3841 transitions. [2023-12-20 17:13:00,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2023-12-20 17:13:00,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:13:00,065 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:13:00,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 17:13:00,065 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:13:00,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:13:00,066 INFO L85 PathProgramCache]: Analyzing trace with hash 607352642, now seen corresponding path program 1 times [2023-12-20 17:13:00,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:13:00,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490397766] [2023-12-20 17:13:00,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:00,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:13:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:00,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 1184 proven. 104 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-12-20 17:13:00,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:13:00,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490397766] [2023-12-20 17:13:00,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490397766] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 17:13:00,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825075100] [2023-12-20 17:13:00,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:00,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:13:00,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 17:13:00,937 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) [2023-12-20 17:13:00,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 17:13:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:01,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 17:13:01,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 17:13:01,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2023-12-20 17:13:01,233 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 17:13:01,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825075100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:13:01,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 17:13:01,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-20 17:13:01,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179583273] [2023-12-20 17:13:01,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:13:01,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:13:01,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:13:01,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:13:01,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:01,256 INFO L87 Difference]: Start difference. First operand 3563 states and 3841 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-12-20 17:13:01,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:13:01,790 INFO L93 Difference]: Finished difference Result 8015 states and 8684 transitions. [2023-12-20 17:13:01,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:13:01,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 643 [2023-12-20 17:13:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:13:01,808 INFO L225 Difference]: With dead ends: 8015 [2023-12-20 17:13:01,808 INFO L226 Difference]: Without dead ends: 4631 [2023-12-20 17:13:01,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:01,812 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 116 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 17:13:01,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 244 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 17:13:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2023-12-20 17:13:01,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4453. [2023-12-20 17:13:01,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4453 states, 4452 states have (on average 1.0721024258760108) internal successors, (4773), 4452 states have internal predecessors, (4773), 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) [2023-12-20 17:13:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4453 states to 4453 states and 4773 transitions. [2023-12-20 17:13:01,894 INFO L78 Accepts]: Start accepts. Automaton has 4453 states and 4773 transitions. Word has length 643 [2023-12-20 17:13:01,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:13:01,895 INFO L495 AbstractCegarLoop]: Abstraction has 4453 states and 4773 transitions. [2023-12-20 17:13:01,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-12-20 17:13:01,895 INFO L276 IsEmpty]: Start isEmpty. Operand 4453 states and 4773 transitions. [2023-12-20 17:13:01,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2023-12-20 17:13:01,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:13:01,903 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:13:01,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 17:13:02,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:13:02,111 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:13:02,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:13:02,111 INFO L85 PathProgramCache]: Analyzing trace with hash -24943392, now seen corresponding path program 1 times [2023-12-20 17:13:02,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:13:02,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079653000] [2023-12-20 17:13:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:02,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:13:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:02,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 1239 proven. 104 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-12-20 17:13:02,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:13:02,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079653000] [2023-12-20 17:13:02,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079653000] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 17:13:02,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788180251] [2023-12-20 17:13:02,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:02,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:13:02,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 17:13:02,885 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) [2023-12-20 17:13:02,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 17:13:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:03,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 17:13:03,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 17:13:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2023-12-20 17:13:03,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 17:13:03,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788180251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:13:03,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 17:13:03,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-20 17:13:03,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231599269] [2023-12-20 17:13:03,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:13:03,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:13:03,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:13:03,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:13:03,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:03,168 INFO L87 Difference]: Start difference. First operand 4453 states and 4773 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-12-20 17:13:03,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:13:03,634 INFO L93 Difference]: Finished difference Result 5345 states and 5725 transitions. [2023-12-20 17:13:03,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:13:03,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 655 [2023-12-20 17:13:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:13:03,653 INFO L225 Difference]: With dead ends: 5345 [2023-12-20 17:13:03,653 INFO L226 Difference]: Without dead ends: 5343 [2023-12-20 17:13:03,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:03,656 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 136 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 17:13:03,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 9 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 17:13:03,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5343 states. [2023-12-20 17:13:03,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5343 to 4453. [2023-12-20 17:13:03,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4453 states, 4452 states have (on average 1.0718778077268643) internal successors, (4772), 4452 states have internal predecessors, (4772), 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) [2023-12-20 17:13:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4453 states to 4453 states and 4772 transitions. [2023-12-20 17:13:03,742 INFO L78 Accepts]: Start accepts. Automaton has 4453 states and 4772 transitions. Word has length 655 [2023-12-20 17:13:03,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:13:03,743 INFO L495 AbstractCegarLoop]: Abstraction has 4453 states and 4772 transitions. [2023-12-20 17:13:03,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-12-20 17:13:03,743 INFO L276 IsEmpty]: Start isEmpty. Operand 4453 states and 4772 transitions. [2023-12-20 17:13:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-12-20 17:13:03,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:13:03,783 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:13:03,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 17:13:03,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:13:03,991 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:13:03,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:13:03,992 INFO L85 PathProgramCache]: Analyzing trace with hash -160367116, now seen corresponding path program 1 times [2023-12-20 17:13:03,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:13:03,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489470782] [2023-12-20 17:13:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:03,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:13:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 1271 proven. 104 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-12-20 17:13:04,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:13:04,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489470782] [2023-12-20 17:13:04,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489470782] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 17:13:04,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898038297] [2023-12-20 17:13:04,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:04,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:13:04,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 17:13:04,766 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 17:13:04,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 17:13:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:04,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 17:13:04,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 17:13:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 1375 trivial. 0 not checked. [2023-12-20 17:13:05,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 17:13:05,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898038297] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:13:05,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 17:13:05,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-20 17:13:05,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296916357] [2023-12-20 17:13:05,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:13:05,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:13:05,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:13:05,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:13:05,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:05,068 INFO L87 Difference]: Start difference. First operand 4453 states and 4772 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-12-20 17:13:05,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:13:05,520 INFO L93 Difference]: Finished difference Result 9973 states and 10724 transitions. [2023-12-20 17:13:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:13:05,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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 663 [2023-12-20 17:13:05,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:13:05,537 INFO L225 Difference]: With dead ends: 9973 [2023-12-20 17:13:05,537 INFO L226 Difference]: Without dead ends: 5699 [2023-12-20 17:13:05,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 662 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:05,543 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 119 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 17:13:05,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 47 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 17:13:05,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5699 states. [2023-12-20 17:13:05,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5699 to 4987. [2023-12-20 17:13:05,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 1.0746089049338148) internal successors, (5358), 4986 states have internal predecessors, (5358), 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) [2023-12-20 17:13:05,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 5358 transitions. [2023-12-20 17:13:05,619 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 5358 transitions. Word has length 663 [2023-12-20 17:13:05,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:13:05,620 INFO L495 AbstractCegarLoop]: Abstraction has 4987 states and 5358 transitions. [2023-12-20 17:13:05,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2023-12-20 17:13:05,621 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 5358 transitions. [2023-12-20 17:13:05,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2023-12-20 17:13:05,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:13:05,630 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:13:05,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 17:13:05,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-20 17:13:05,833 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:13:05,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:13:05,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2047333484, now seen corresponding path program 1 times [2023-12-20 17:13:05,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:13:05,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111080421] [2023-12-20 17:13:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:05,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:13:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 1343 proven. 104 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-12-20 17:13:06,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:13:06,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111080421] [2023-12-20 17:13:06,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111080421] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 17:13:06,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587815283] [2023-12-20 17:13:06,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:06,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:13:06,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 17:13:06,556 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 17:13:06,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 17:13:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:06,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 17:13:06,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 17:13:06,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 377 proven. 0 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2023-12-20 17:13:06,849 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 17:13:06,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587815283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:13:06,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 17:13:06,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-20 17:13:06,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761275832] [2023-12-20 17:13:06,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:13:06,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:13:06,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:13:06,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:13:06,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:06,852 INFO L87 Difference]: Start difference. First operand 4987 states and 5358 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2023-12-20 17:13:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:13:07,234 INFO L93 Difference]: Finished difference Result 5523 states and 5919 transitions. [2023-12-20 17:13:07,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:13:07,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 711 [2023-12-20 17:13:07,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:13:07,244 INFO L225 Difference]: With dead ends: 5523 [2023-12-20 17:13:07,244 INFO L226 Difference]: Without dead ends: 5521 [2023-12-20 17:13:07,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:07,246 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 136 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 17:13:07,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 9 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 17:13:07,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2023-12-20 17:13:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 4809. [2023-12-20 17:13:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4809 states, 4808 states have (on average 1.074667221297837) internal successors, (5167), 4808 states have internal predecessors, (5167), 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) [2023-12-20 17:13:07,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4809 states to 4809 states and 5167 transitions. [2023-12-20 17:13:07,310 INFO L78 Accepts]: Start accepts. Automaton has 4809 states and 5167 transitions. Word has length 711 [2023-12-20 17:13:07,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:13:07,311 INFO L495 AbstractCegarLoop]: Abstraction has 4809 states and 5167 transitions. [2023-12-20 17:13:07,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2023-12-20 17:13:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 4809 states and 5167 transitions. [2023-12-20 17:13:07,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2023-12-20 17:13:07,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:13:07,323 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:13:07,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 17:13:07,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-20 17:13:07,529 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:13:07,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:13:07,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1982129, now seen corresponding path program 1 times [2023-12-20 17:13:07,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:13:07,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854844630] [2023-12-20 17:13:07,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:07,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:13:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:08,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 1343 proven. 104 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2023-12-20 17:13:08,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:13:08,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854844630] [2023-12-20 17:13:08,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854844630] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 17:13:08,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109716168] [2023-12-20 17:13:08,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:08,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:13:08,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 17:13:08,348 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 17:13:08,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 17:13:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:08,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 17:13:08,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 17:13:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 1370 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-12-20 17:13:09,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 17:13:09,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109716168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:13:09,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 17:13:09,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-20 17:13:09,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674071600] [2023-12-20 17:13:09,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:13:09,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:13:09,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:13:09,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:13:09,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:09,050 INFO L87 Difference]: Start difference. First operand 4809 states and 5167 transitions. Second operand has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2023-12-20 17:13:09,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:13:09,527 INFO L93 Difference]: Finished difference Result 9617 states and 10348 transitions. [2023-12-20 17:13:09,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:13:09,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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 738 [2023-12-20 17:13:09,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:13:09,535 INFO L225 Difference]: With dead ends: 9617 [2023-12-20 17:13:09,536 INFO L226 Difference]: Without dead ends: 4987 [2023-12-20 17:13:09,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 737 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-20 17:13:09,541 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 71 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 17:13:09,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 240 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 17:13:09,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2023-12-20 17:13:09,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4631. [2023-12-20 17:13:09,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 4630 states have (on average 1.0721382289416848) internal successors, (4964), 4630 states have internal predecessors, (4964), 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) [2023-12-20 17:13:09,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 4964 transitions. [2023-12-20 17:13:09,614 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 4964 transitions. Word has length 738 [2023-12-20 17:13:09,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:13:09,615 INFO L495 AbstractCegarLoop]: Abstraction has 4631 states and 4964 transitions. [2023-12-20 17:13:09,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 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) [2023-12-20 17:13:09,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 4964 transitions. [2023-12-20 17:13:09,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2023-12-20 17:13:09,630 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:13:09,630 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:13:09,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 17:13:09,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:13:09,837 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:13:09,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:13:09,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1227709128, now seen corresponding path program 1 times [2023-12-20 17:13:09,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:13:09,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457839746] [2023-12-20 17:13:09,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:09,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:13:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:10,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2629 backedges. 1701 proven. 0 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2023-12-20 17:13:10,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:13:10,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457839746] [2023-12-20 17:13:10,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457839746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:13:10,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 17:13:10,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 17:13:10,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148269235] [2023-12-20 17:13:10,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:13:10,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:13:10,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:13:10,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:13:10,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 17:13:10,361 INFO L87 Difference]: Start difference. First operand 4631 states and 4964 transitions. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 17:13:10,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:13:10,817 INFO L93 Difference]: Finished difference Result 10151 states and 10972 transitions. [2023-12-20 17:13:10,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:13:10,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 955 [2023-12-20 17:13:10,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:13:10,826 INFO L225 Difference]: With dead ends: 10151 [2023-12-20 17:13:10,826 INFO L226 Difference]: Without dead ends: 5699 [2023-12-20 17:13:10,830 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 [2023-12-20 17:13:10,831 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 108 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 17:13:10,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 36 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 17:13:10,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5699 states. [2023-12-20 17:13:10,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5699 to 5699. [2023-12-20 17:13:10,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5699 states, 5698 states have (on average 1.076167076167076) internal successors, (6132), 5698 states have internal predecessors, (6132), 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) [2023-12-20 17:13:10,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 6132 transitions. [2023-12-20 17:13:10,908 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 6132 transitions. Word has length 955 [2023-12-20 17:13:10,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:13:10,909 INFO L495 AbstractCegarLoop]: Abstraction has 5699 states and 6132 transitions. [2023-12-20 17:13:10,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 17:13:10,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 6132 transitions. [2023-12-20 17:13:10,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2023-12-20 17:13:10,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 17:13:10,923 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:13:10,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 17:13:10,924 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 17:13:10,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 17:13:10,924 INFO L85 PathProgramCache]: Analyzing trace with hash -954702779, now seen corresponding path program 1 times [2023-12-20 17:13:10,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 17:13:10,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424519305] [2023-12-20 17:13:10,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:10,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 17:13:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:11,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2657 backedges. 1752 proven. 93 refuted. 0 times theorem prover too weak. 812 trivial. 0 not checked. [2023-12-20 17:13:11,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 17:13:11,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424519305] [2023-12-20 17:13:11,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424519305] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 17:13:11,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196777419] [2023-12-20 17:13:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 17:13:11,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 17:13:11,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 17:13:11,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 17:13:11,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 17:13:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 17:13:11,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 17:13:11,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 17:13:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2657 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 2217 trivial. 0 not checked. [2023-12-20 17:13:12,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 17:13:12,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196777419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 17:13:12,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 17:13:12,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-20 17:13:12,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671249559] [2023-12-20 17:13:12,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 17:13:12,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 17:13:12,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 17:13:12,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 17:13:12,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 17:13:12,030 INFO L87 Difference]: Start difference. First operand 5699 states and 6132 transitions. Second operand has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-12-20 17:13:12,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 17:13:12,533 INFO L93 Difference]: Finished difference Result 11395 states and 12265 transitions. [2023-12-20 17:13:12,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 17:13:12,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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 973 [2023-12-20 17:13:12,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 17:13:12,534 INFO L225 Difference]: With dead ends: 11395 [2023-12-20 17:13:12,534 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 17:13:12,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 972 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 17:13:12,543 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 116 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 17:13:12,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 229 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 17:13:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 17:13:12,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 17:13:12,543 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) [2023-12-20 17:13:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 17:13:12,544 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 973 [2023-12-20 17:13:12,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 17:13:12,544 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 17:13:12,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.0) internal successors, (246), 3 states have internal predecessors, (246), 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) [2023-12-20 17:13:12,544 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 17:13:12,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 17:13:12,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 17:13:12,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 17:13:12,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-20 17:13:12,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 17:13:13,450 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2023-12-20 17:13:13,451 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,452 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,453 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2023-12-20 17:13:13,454 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,455 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2023-12-20 17:13:13,456 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 209) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2023-12-20 17:13:13,457 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,458 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,459 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2023-12-20 17:13:13,460 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2023-12-20 17:13:13,461 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 900) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2023-12-20 17:13:13,462 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2023-12-20 17:13:13,463 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,463 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,463 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-12-20 17:13:13,463 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,463 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse2 (<= 0 (+ ~a12~0 42))) (.cse1 (<= 10 ~a21~0)) (.cse3 (<= ~a21~0 6)) (.cse5 (<= (+ 49 ~a12~0) 0)) (.cse0 (= ~a24~0 1)) (.cse4 (<= ~a15~0 8))) (or (and .cse0 .cse1) (and (<= 6 ~a15~0) .cse0 .cse2) (and (<= ~a12~0 80) .cse0 .cse2) (and .cse0 .cse3) (and (<= 7 ~a15~0) .cse4 .cse5 .cse1) (and .cse0 (<= ~a21~0 8) (<= 8 ~a15~0)) (and .cse4 .cse3 .cse5) (and (<= ~a12~0 11) .cse0 .cse4))) [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2023-12-20 17:13:13,464 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2023-12-20 17:13:13,467 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 17:13:13,469 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 17:13:13,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 05:13:13 BoogieIcfgContainer [2023-12-20 17:13:13,485 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 17:13:13,485 INFO L158 Benchmark]: Toolchain (without parser) took 26966.57ms. Allocated memory was 272.6MB in the beginning and 701.5MB in the end (delta: 428.9MB). Free memory was 221.8MB in the beginning and 553.8MB in the end (delta: -332.0MB). Peak memory consumption was 408.7MB. Max. memory is 8.0GB. [2023-12-20 17:13:13,485 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 182.5MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 17:13:13,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.42ms. Allocated memory is still 272.6MB. Free memory was 221.8MB in the beginning and 188.1MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-12-20 17:13:13,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.01ms. Allocated memory is still 272.6MB. Free memory was 188.1MB in the beginning and 178.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-20 17:13:13,486 INFO L158 Benchmark]: Boogie Preprocessor took 112.67ms. Allocated memory is still 272.6MB. Free memory was 178.2MB in the beginning and 165.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-20 17:13:13,486 INFO L158 Benchmark]: RCFGBuilder took 1279.22ms. Allocated memory is still 272.6MB. Free memory was 165.5MB in the beginning and 132.9MB in the end (delta: 32.6MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-20 17:13:13,486 INFO L158 Benchmark]: TraceAbstraction took 24903.43ms. Allocated memory was 272.6MB in the beginning and 701.5MB in the end (delta: 428.9MB). Free memory was 132.3MB in the beginning and 553.8MB in the end (delta: -421.4MB). Peak memory consumption was 318.9MB. Max. memory is 8.0GB. [2023-12-20 17:13:13,488 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 182.5MB. Free memory is still 136.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 576.42ms. Allocated memory is still 272.6MB. Free memory was 221.8MB in the beginning and 188.1MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 89.01ms. Allocated memory is still 272.6MB. Free memory was 188.1MB in the beginning and 178.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 112.67ms. Allocated memory is still 272.6MB. Free memory was 178.2MB in the beginning and 165.5MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1279.22ms. Allocated memory is still 272.6MB. Free memory was 165.5MB in the beginning and 132.9MB in the end (delta: 32.6MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 24903.43ms. Allocated memory was 272.6MB in the beginning and 701.5MB in the end (delta: 428.9MB). Free memory was 132.3MB in the beginning and 553.8MB in the end (delta: -421.4MB). Peak memory consumption was 318.9MB. 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: 209]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 183 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.8s, OverallIterations: 18, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2174 SdHoareTripleChecker+Valid, 8.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2174 mSDsluCounter, 2089 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 989 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8499 IncrementalHoareTripleChecker+Invalid, 9488 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 989 mSolverCounterUnsat, 2013 mSDtfsCounter, 8499 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4844 GetRequests, 4795 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5699occurred in iteration=17, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 18 MinimizatonAttempts, 4450 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 37 NumberOfFragments, 86 HoareAnnotationTreeSize, 1 FormulaSimplifications, 890 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 1 FormulaSimplificationsInter, 1465 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 8.7s InterpolantComputationTime, 13021 NumberOfCodeBlocks, 13021 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 12995 ConstructedInterpolants, 0 QuantifiedInterpolants, 48018 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6044 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 28625/29353 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((a24 == 1) && (10 <= a21)) || (((6 <= a15) && (a24 == 1)) && (0 <= (a12 + 42)))) || (((a12 <= 80) && (a24 == 1)) && (0 <= (a12 + 42)))) || ((a24 == 1) && (a21 <= 6))) || ((((7 <= a15) && (a15 <= 8)) && ((49 + a12) <= 0)) && (10 <= a21))) || (((a24 == 1) && (a21 <= 8)) && (8 <= a15))) || (((a15 <= 8) && (a21 <= 6)) && ((49 + a12) <= 0))) || (((a12 <= 11) && (a24 == 1)) && (a15 <= 8))) RESULT: Ultimate proved your program to be correct! [2023-12-20 17:13:13,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...