/usr/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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label48.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 22:55:32,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 22:55:32,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 22:55:32,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-01 22:55:32,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-01 22:55:32,556 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 22:55:32,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 22:55:32,557 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 22:55:32,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 22:55:32,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 22:55:32,558 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 22:55:32,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 22:55:32,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 22:55:32,559 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 22:55:32,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 22:55:32,560 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 22:55:32,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 22:55:32,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 22:55:32,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 22:55:32,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 22:55:32,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 22:55:32,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 22:55:32,560 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 22:55:32,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 22:55:32,561 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 22:55:32,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 22:55:32,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 22:55:32,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 22:55:32,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 22:55:32,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 22:55:32,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 22:55:32,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 22:55:32,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 22:55:32,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 22:55:32,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 22:55:32,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 22:55:32,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 22:55:32,562 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 22:55:32,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 22:55:32,563 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 22:55:32,563 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 22:55:32,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 22:55:32,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 22:55:32,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 22:55:32,820 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 22:55:32,820 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 22:55:32,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label48.c [2023-04-01 22:55:33,975 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 22:55:34,214 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 22:55:34,215 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label48.c [2023-04-01 22:55:34,226 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba55b915/1c97d3b117d34875abbea2ddb43cd4f4/FLAG291fc8f16 [2023-04-01 22:55:34,239 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eba55b915/1c97d3b117d34875abbea2ddb43cd4f4 [2023-04-01 22:55:34,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 22:55:34,243 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 22:55:34,244 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 22:55:34,244 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 22:55:34,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 22:55:34,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575ae607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34, skipping insertion in model container [2023-04-01 22:55:34,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 22:55:34,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 22:55:34,516 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label48.c[4040,4053] [2023-04-01 22:55:34,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 22:55:34,731 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 22:55:34,758 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label48.c[4040,4053] [2023-04-01 22:55:34,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 22:55:34,859 INFO L208 MainTranslator]: Completed translation [2023-04-01 22:55:34,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34 WrapperNode [2023-04-01 22:55:34,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 22:55:34,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 22:55:34,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 22:55:34,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 22:55:34,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,969 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:34,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 22:55:34,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 22:55:34,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 22:55:34,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 22:55:34,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (1/1) ... [2023-04-01 22:55:35,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 22:55:35,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:55:35,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 22:55:35,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 22:55:35,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 22:55:35,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 22:55:35,075 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 22:55:35,075 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 22:55:35,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 22:55:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 22:55:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 22:55:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 22:55:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 22:55:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 22:55:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 22:55:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 22:55:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 22:55:35,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 22:55:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 22:55:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 22:55:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 22:55:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 22:55:35,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 22:55:35,151 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 22:55:35,152 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 22:55:36,416 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 22:55:36,434 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 22:55:36,435 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 22:55:36,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:55:36 BoogieIcfgContainer [2023-04-01 22:55:36,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 22:55:36,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 22:55:36,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 22:55:36,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 22:55:36,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:55:34" (1/3) ... [2023-04-01 22:55:36,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4200b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:55:36, skipping insertion in model container [2023-04-01 22:55:36,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:55:34" (2/3) ... [2023-04-01 22:55:36,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4200b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:55:36, skipping insertion in model container [2023-04-01 22:55:36,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:55:36" (3/3) ... [2023-04-01 22:55:36,444 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label48.c [2023-04-01 22:55:36,459 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 22:55:36,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 22:55:36,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 22:55:36,527 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=LoopsAndPotentialCycles, 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;@bb581ab, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 22:55:36,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 22:55:36,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 254 states, 246 states have (on average 1.7276422764227641) internal successors, (425), 247 states have internal predecessors, (425), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 22:55:36,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-04-01 22:55:36,543 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:55:36,544 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] [2023-04-01 22:55:36,545 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:55:36,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:55:36,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1422400801, now seen corresponding path program 1 times [2023-04-01 22:55:36,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:55:36,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737731318] [2023-04-01 22:55:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:36,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:55:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:55:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:55:37,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:55:37,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737731318] [2023-04-01 22:55:37,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737731318] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:55:37,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 22:55:37,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 22:55:37,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860948446] [2023-04-01 22:55:37,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:55:37,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 22:55:37,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:55:37,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 22:55:37,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 22:55:37,144 INFO L87 Difference]: Start difference. First operand has 254 states, 246 states have (on average 1.7276422764227641) internal successors, (425), 247 states have internal predecessors, (425), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 22:55:39,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:55:39,194 INFO L93 Difference]: Finished difference Result 886 states and 1612 transitions. [2023-04-01 22:55:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 22:55:39,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2023-04-01 22:55:39,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:55:39,211 INFO L225 Difference]: With dead ends: 886 [2023-04-01 22:55:39,212 INFO L226 Difference]: Without dead ends: 564 [2023-04-01 22:55:39,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-04-01 22:55:39,222 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1276 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 666 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 666 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-01 22:55:39,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 28 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [666 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-01 22:55:39,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-04-01 22:55:39,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2023-04-01 22:55:39,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 547 states have (on average 1.5502742230347348) internal successors, (848), 550 states have internal predecessors, (848), 5 states have call successors, (5), 5 states have call predecessors, (5), 7 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-04-01 22:55:39,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 867 transitions. [2023-04-01 22:55:39,290 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 867 transitions. Word has length 44 [2023-04-01 22:55:39,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:55:39,290 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 867 transitions. [2023-04-01 22:55:39,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 22:55:39,291 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 867 transitions. [2023-04-01 22:55:39,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-04-01 22:55:39,295 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:55:39,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:55:39,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 22:55:39,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:55:39,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:55:39,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1214057837, now seen corresponding path program 1 times [2023-04-01 22:55:39,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:55:39,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809559027] [2023-04-01 22:55:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:39,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:55:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:55:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:39,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:55:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:55:39,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:55:39,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809559027] [2023-04-01 22:55:39,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809559027] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:55:39,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007568709] [2023-04-01 22:55:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:39,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:39,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:55:39,571 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) [2023-04-01 22:55:39,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 22:55:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:39,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:55:39,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:55:39,805 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:55:39,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:55:39,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007568709] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:55:39,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:55:39,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-04-01 22:55:39,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520587994] [2023-04-01 22:55:39,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:55:39,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 22:55:39,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:55:39,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 22:55:39,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 22:55:39,809 INFO L87 Difference]: Start difference. First operand 560 states and 867 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 22:55:40,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:55:40,430 INFO L93 Difference]: Finished difference Result 1666 states and 2613 transitions. [2023-04-01 22:55:40,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 22:55:40,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 127 [2023-04-01 22:55:40,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:55:40,437 INFO L225 Difference]: With dead ends: 1666 [2023-04-01 22:55:40,437 INFO L226 Difference]: Without dead ends: 1112 [2023-04-01 22:55:40,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 22:55:40,439 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 143 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 22:55:40,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 323 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 22:55:40,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2023-04-01 22:55:40,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 744. [2023-04-01 22:55:40,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 728 states have (on average 1.4217032967032968) internal successors, (1035), 732 states have internal predecessors, (1035), 6 states have call successors, (6), 6 states have call predecessors, (6), 9 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2023-04-01 22:55:40,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1062 transitions. [2023-04-01 22:55:40,494 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1062 transitions. Word has length 127 [2023-04-01 22:55:40,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:55:40,496 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 1062 transitions. [2023-04-01 22:55:40,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 22:55:40,497 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1062 transitions. [2023-04-01 22:55:40,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-01 22:55:40,502 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:55:40,502 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:55:40,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 22:55:40,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:40,711 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:55:40,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:55:40,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1527354424, now seen corresponding path program 1 times [2023-04-01 22:55:40,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:55:40,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776228240] [2023-04-01 22:55:40,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:40,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:55:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:40,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:55:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:40,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:55:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:41,169 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:55:41,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:55:41,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776228240] [2023-04-01 22:55:41,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776228240] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:55:41,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 22:55:41,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 22:55:41,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354499910] [2023-04-01 22:55:41,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:55:41,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 22:55:41,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:55:41,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 22:55:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-01 22:55:41,177 INFO L87 Difference]: Start difference. First operand 744 states and 1062 transitions. Second operand has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 22:55:42,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:55:42,408 INFO L93 Difference]: Finished difference Result 2070 states and 2976 transitions. [2023-04-01 22:55:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-01 22:55:42,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 130 [2023-04-01 22:55:42,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:55:42,415 INFO L225 Difference]: With dead ends: 2070 [2023-04-01 22:55:42,415 INFO L226 Difference]: Without dead ends: 1332 [2023-04-01 22:55:42,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-01 22:55:42,418 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 615 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 22:55:42,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 42 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 22:55:42,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2023-04-01 22:55:42,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1126. [2023-04-01 22:55:42,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1097 states have (on average 1.340018231540565) internal successors, (1470), 1110 states have internal predecessors, (1470), 8 states have call successors, (8), 8 states have call predecessors, (8), 20 states have return successors, (52), 7 states have call predecessors, (52), 7 states have call successors, (52) [2023-04-01 22:55:42,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1530 transitions. [2023-04-01 22:55:42,456 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1530 transitions. Word has length 130 [2023-04-01 22:55:42,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:55:42,457 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 1530 transitions. [2023-04-01 22:55:42,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 22:55:42,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1530 transitions. [2023-04-01 22:55:42,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-04-01 22:55:42,462 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:55:42,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:55:42,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 22:55:42,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:55:42,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:55:42,463 INFO L85 PathProgramCache]: Analyzing trace with hash -104205719, now seen corresponding path program 1 times [2023-04-01 22:55:42,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:55:42,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982086981] [2023-04-01 22:55:42,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:42,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:55:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:55:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:42,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:55:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:55:42,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:55:42,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982086981] [2023-04-01 22:55:42,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982086981] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:55:42,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985787605] [2023-04-01 22:55:42,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:42,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:42,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:55:42,763 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) [2023-04-01 22:55:42,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 22:55:42,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:42,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:55:42,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:55:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:55:42,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:55:42,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985787605] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:55:42,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:55:42,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-04-01 22:55:42,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217007186] [2023-04-01 22:55:42,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:55:42,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 22:55:42,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:55:42,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 22:55:42,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 22:55:42,962 INFO L87 Difference]: Start difference. First operand 1126 states and 1530 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 22:55:43,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:55:43,525 INFO L93 Difference]: Finished difference Result 1866 states and 2663 transitions. [2023-04-01 22:55:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 22:55:43,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 177 [2023-04-01 22:55:43,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:55:43,538 INFO L225 Difference]: With dead ends: 1866 [2023-04-01 22:55:43,538 INFO L226 Difference]: Without dead ends: 1864 [2023-04-01 22:55:43,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 22:55:43,540 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 159 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 22:55:43,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 69 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 22:55:43,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2023-04-01 22:55:43,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1126. [2023-04-01 22:55:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1097 states have (on average 1.340018231540565) internal successors, (1470), 1110 states have internal predecessors, (1470), 8 states have call successors, (8), 8 states have call predecessors, (8), 20 states have return successors, (52), 7 states have call predecessors, (52), 7 states have call successors, (52) [2023-04-01 22:55:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1530 transitions. [2023-04-01 22:55:43,588 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1530 transitions. Word has length 177 [2023-04-01 22:55:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:55:43,590 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 1530 transitions. [2023-04-01 22:55:43,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 22:55:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1530 transitions. [2023-04-01 22:55:43,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-04-01 22:55:43,595 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:55:43,598 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 22:55:43,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 22:55:43,809 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,SelfDestructingSolverStorable3 [2023-04-01 22:55:43,809 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:55:43,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:55:43,810 INFO L85 PathProgramCache]: Analyzing trace with hash -77897924, now seen corresponding path program 1 times [2023-04-01 22:55:43,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:55:43,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040644646] [2023-04-01 22:55:43,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:43,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:55:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:44,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:55:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:44,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:55:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-01 22:55:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:44,327 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 22:55:44,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:55:44,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040644646] [2023-04-01 22:55:44,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040644646] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:55:44,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684606499] [2023-04-01 22:55:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:44,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:44,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:55:44,329 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) [2023-04-01 22:55:44,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 22:55:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:44,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:55:44,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:55:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:55:44,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:55:44,974 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:55:44,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684606499] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:55:44,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:55:44,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2023-04-01 22:55:44,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165404050] [2023-04-01 22:55:44,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:55:44,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 22:55:44,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:55:44,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 22:55:44,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-01 22:55:44,978 INFO L87 Difference]: Start difference. First operand 1126 states and 1530 transitions. Second operand has 12 states, 12 states have (on average 32.5) internal successors, (390), 10 states have internal predecessors, (390), 5 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 22:55:47,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:55:47,318 INFO L93 Difference]: Finished difference Result 3384 states and 4836 transitions. [2023-04-01 22:55:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-01 22:55:47,318 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 32.5) internal successors, (390), 10 states have internal predecessors, (390), 5 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 225 [2023-04-01 22:55:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:55:47,328 INFO L225 Difference]: With dead ends: 3384 [2023-04-01 22:55:47,328 INFO L226 Difference]: Without dead ends: 1894 [2023-04-01 22:55:47,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 455 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2023-04-01 22:55:47,333 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1498 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 3106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-01 22:55:47,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 109 Invalid, 3106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-01 22:55:47,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2023-04-01 22:55:47,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1502. [2023-04-01 22:55:47,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1463 states have (on average 1.2310321257689678) internal successors, (1801), 1482 states have internal predecessors, (1801), 10 states have call successors, (10), 10 states have call predecessors, (10), 28 states have return successors, (83), 9 states have call predecessors, (83), 9 states have call successors, (83) [2023-04-01 22:55:47,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1894 transitions. [2023-04-01 22:55:47,380 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1894 transitions. Word has length 225 [2023-04-01 22:55:47,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:55:47,380 INFO L495 AbstractCegarLoop]: Abstraction has 1502 states and 1894 transitions. [2023-04-01 22:55:47,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 32.5) internal successors, (390), 10 states have internal predecessors, (390), 5 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 22:55:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1894 transitions. [2023-04-01 22:55:47,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-04-01 22:55:47,384 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:55:47,385 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 22:55:47,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 22:55:47,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:47,594 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:55:47,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:55:47,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1979388827, now seen corresponding path program 1 times [2023-04-01 22:55:47,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:55:47,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713172299] [2023-04-01 22:55:47,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:47,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:55:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:47,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:55:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:47,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:55:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:48,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-01 22:55:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 22:55:48,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:55:48,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713172299] [2023-04-01 22:55:48,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713172299] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:55:48,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599691368] [2023-04-01 22:55:48,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:48,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:48,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:55:48,233 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) [2023-04-01 22:55:48,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-01 22:55:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:48,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 22:55:48,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:55:48,789 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-01 22:55:48,790 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:55:48,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599691368] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:55:48,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:55:48,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-04-01 22:55:48,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622509127] [2023-04-01 22:55:48,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:55:48,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 22:55:48,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:55:48,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 22:55:48,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-01 22:55:48,792 INFO L87 Difference]: Start difference. First operand 1502 states and 1894 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 22:55:49,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:55:49,591 INFO L93 Difference]: Finished difference Result 2644 states and 3381 transitions. [2023-04-01 22:55:49,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 22:55:49,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 242 [2023-04-01 22:55:49,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:55:49,597 INFO L225 Difference]: With dead ends: 2644 [2023-04-01 22:55:49,598 INFO L226 Difference]: Without dead ends: 1516 [2023-04-01 22:55:49,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-01 22:55:49,600 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 340 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 22:55:49,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 54 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 22:55:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2023-04-01 22:55:49,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1502. [2023-04-01 22:55:49,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1463 states have (on average 1.2241968557758032) internal successors, (1791), 1482 states have internal predecessors, (1791), 10 states have call successors, (10), 10 states have call predecessors, (10), 28 states have return successors, (75), 9 states have call predecessors, (75), 9 states have call successors, (75) [2023-04-01 22:55:49,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1876 transitions. [2023-04-01 22:55:49,636 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1876 transitions. Word has length 242 [2023-04-01 22:55:49,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:55:49,636 INFO L495 AbstractCegarLoop]: Abstraction has 1502 states and 1876 transitions. [2023-04-01 22:55:49,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 22:55:49,637 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1876 transitions. [2023-04-01 22:55:49,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-04-01 22:55:49,641 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:55:49,642 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:55:49,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-01 22:55:49,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:49,848 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:55:49,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:55:49,849 INFO L85 PathProgramCache]: Analyzing trace with hash 285744667, now seen corresponding path program 1 times [2023-04-01 22:55:49,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:55:49,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306691625] [2023-04-01 22:55:49,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:49,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:55:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:50,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:55:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:50,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:55:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:50,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-01 22:55:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-04-01 22:55:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 185 proven. 85 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-04-01 22:55:50,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:55:50,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306691625] [2023-04-01 22:55:50,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306691625] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:55:50,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814875818] [2023-04-01 22:55:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:50,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:50,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:55:50,813 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) [2023-04-01 22:55:50,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-01 22:55:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:50,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 22:55:50,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:55:51,212 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-04-01 22:55:51,212 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:55:51,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814875818] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:55:51,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:55:51,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-04-01 22:55:51,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996766600] [2023-04-01 22:55:51,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:55:51,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 22:55:51,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:55:51,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 22:55:51,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-01 22:55:51,214 INFO L87 Difference]: Start difference. First operand 1502 states and 1876 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 22:55:52,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:55:52,132 INFO L93 Difference]: Finished difference Result 2838 states and 3578 transitions. [2023-04-01 22:55:52,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 22:55:52,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 315 [2023-04-01 22:55:52,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:55:52,140 INFO L225 Difference]: With dead ends: 2838 [2023-04-01 22:55:52,140 INFO L226 Difference]: Without dead ends: 1710 [2023-04-01 22:55:52,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2023-04-01 22:55:52,144 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 424 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 22:55:52,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 50 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 22:55:52,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2023-04-01 22:55:52,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1500. [2023-04-01 22:55:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1462 states have (on average 1.216142270861833) internal successors, (1778), 1480 states have internal predecessors, (1778), 10 states have call successors, (10), 10 states have call predecessors, (10), 27 states have return successors, (65), 9 states have call predecessors, (65), 9 states have call successors, (65) [2023-04-01 22:55:52,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1853 transitions. [2023-04-01 22:55:52,186 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1853 transitions. Word has length 315 [2023-04-01 22:55:52,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:55:52,186 INFO L495 AbstractCegarLoop]: Abstraction has 1500 states and 1853 transitions. [2023-04-01 22:55:52,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 22:55:52,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1853 transitions. [2023-04-01 22:55:52,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-04-01 22:55:52,191 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:55:52,191 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:55:52,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-01 22:55:52,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:52,401 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:55:52,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:55:52,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1307316762, now seen corresponding path program 1 times [2023-04-01 22:55:52,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:55:52,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423685943] [2023-04-01 22:55:52,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:52,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:55:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:52,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:55:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:52,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:55:52,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-01 22:55:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:53,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-04-01 22:55:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:53,342 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 145 proven. 213 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-01 22:55:53,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:55:53,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423685943] [2023-04-01 22:55:53,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423685943] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:55:53,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395406714] [2023-04-01 22:55:53,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:55:53,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:55:53,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:55:53,345 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) [2023-04-01 22:55:53,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-01 22:55:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:55:53,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 15 conjunts are in the unsatisfiable core [2023-04-01 22:55:53,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:55:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 325 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-01 22:55:54,683 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:55:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 116 proven. 245 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 22:55:57,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395406714] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:55:57,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:55:57,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 22 [2023-04-01 22:55:57,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785865663] [2023-04-01 22:55:57,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:55:57,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-01 22:55:57,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:55:57,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-01 22:55:57,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2023-04-01 22:55:57,588 INFO L87 Difference]: Start difference. First operand 1500 states and 1853 transitions. Second operand has 22 states, 22 states have (on average 33.95454545454545) internal successors, (747), 21 states have internal predecessors, (747), 7 states have call successors, (14), 11 states have call predecessors, (14), 10 states have return successors, (11), 6 states have call predecessors, (11), 7 states have call successors, (11) [2023-04-01 22:56:01,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:01,837 INFO L93 Difference]: Finished difference Result 3859 states and 4995 transitions. [2023-04-01 22:56:01,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-04-01 22:56:01,839 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 33.95454545454545) internal successors, (747), 21 states have internal predecessors, (747), 7 states have call successors, (14), 11 states have call predecessors, (14), 10 states have return successors, (11), 6 states have call predecessors, (11), 7 states have call successors, (11) Word has length 326 [2023-04-01 22:56:01,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:01,849 INFO L225 Difference]: With dead ends: 3859 [2023-04-01 22:56:01,850 INFO L226 Difference]: Without dead ends: 2296 [2023-04-01 22:56:01,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 675 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=779, Invalid=2527, Unknown=0, NotChecked=0, Total=3306 [2023-04-01 22:56:01,857 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 3123 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 3833 mSolverCounterSat, 995 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3129 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 4828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 995 IncrementalHoareTripleChecker+Valid, 3833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:01,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3129 Valid, 153 Invalid, 4828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [995 Valid, 3833 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-01 22:56:01,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2023-04-01 22:56:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2050. [2023-04-01 22:56:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2004 states have (on average 1.0733532934131738) internal successors, (2151), 2024 states have internal predecessors, (2151), 13 states have call successors, (13), 13 states have call predecessors, (13), 32 states have return successors, (87), 12 states have call predecessors, (87), 12 states have call successors, (87) [2023-04-01 22:56:01,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2251 transitions. [2023-04-01 22:56:01,915 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2251 transitions. Word has length 326 [2023-04-01 22:56:01,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:01,915 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 2251 transitions. [2023-04-01 22:56:01,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 33.95454545454545) internal successors, (747), 21 states have internal predecessors, (747), 7 states have call successors, (14), 11 states have call predecessors, (14), 10 states have return successors, (11), 6 states have call predecessors, (11), 7 states have call successors, (11) [2023-04-01 22:56:01,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2251 transitions. [2023-04-01 22:56:01,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2023-04-01 22:56:01,947 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:01,947 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:56:01,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-01 22:56:02,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:02,148 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:02,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:02,149 INFO L85 PathProgramCache]: Analyzing trace with hash -252389918, now seen corresponding path program 1 times [2023-04-01 22:56:02,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:02,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907591747] [2023-04-01 22:56:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:02,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:02,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:02,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:02,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:02,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:03,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-04-01 22:56:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:03,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2023-04-01 22:56:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 416 proven. 200 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2023-04-01 22:56:03,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:03,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907591747] [2023-04-01 22:56:03,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907591747] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:03,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449094024] [2023-04-01 22:56:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:03,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:03,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:03,185 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) [2023-04-01 22:56:03,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-01 22:56:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:03,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:56:03,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 536 proven. 2 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-04-01 22:56:03,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:03,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 536 proven. 2 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2023-04-01 22:56:03,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449094024] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:03,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:03,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2023-04-01 22:56:03,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351878722] [2023-04-01 22:56:03,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:03,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-01 22:56:03,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:03,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-01 22:56:03,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-04-01 22:56:03,897 INFO L87 Difference]: Start difference. First operand 2050 states and 2251 transitions. Second operand has 13 states, 13 states have (on average 37.0) internal successors, (481), 11 states have internal predecessors, (481), 5 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-01 22:56:06,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:06,097 INFO L93 Difference]: Finished difference Result 6138 states and 6896 transitions. [2023-04-01 22:56:06,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-01 22:56:06,098 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 37.0) internal successors, (481), 11 states have internal predecessors, (481), 5 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 594 [2023-04-01 22:56:06,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:06,111 INFO L225 Difference]: With dead ends: 6138 [2023-04-01 22:56:06,111 INFO L226 Difference]: Without dead ends: 3720 [2023-04-01 22:56:06,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1252 GetRequests, 1214 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=293, Invalid=1113, Unknown=0, NotChecked=0, Total=1406 [2023-04-01 22:56:06,119 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2531 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 2793 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 3132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 2793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:06,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2535 Valid, 95 Invalid, 3132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 2793 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-01 22:56:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3720 states. [2023-04-01 22:56:06,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3720 to 3356. [2023-04-01 22:56:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3356 states, 3280 states have (on average 1.064939024390244) internal successors, (3493), 3316 states have internal predecessors, (3493), 20 states have call successors, (20), 20 states have call predecessors, (20), 55 states have return successors, (196), 19 states have call predecessors, (196), 19 states have call successors, (196) [2023-04-01 22:56:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3356 states to 3356 states and 3709 transitions. [2023-04-01 22:56:06,195 INFO L78 Accepts]: Start accepts. Automaton has 3356 states and 3709 transitions. Word has length 594 [2023-04-01 22:56:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:06,196 INFO L495 AbstractCegarLoop]: Abstraction has 3356 states and 3709 transitions. [2023-04-01 22:56:06,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 37.0) internal successors, (481), 11 states have internal predecessors, (481), 5 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-01 22:56:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3356 states and 3709 transitions. [2023-04-01 22:56:06,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2023-04-01 22:56:06,210 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:06,211 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2023-04-01 22:56:06,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-04-01 22:56:06,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:06,420 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:06,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:06,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1053976441, now seen corresponding path program 1 times [2023-04-01 22:56:06,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:06,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477225757] [2023-04-01 22:56:06,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:06,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:07,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-04-01 22:56:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:07,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2023-04-01 22:56:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 344 proven. 459 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2023-04-01 22:56:07,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:07,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477225757] [2023-04-01 22:56:07,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477225757] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:07,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533746707] [2023-04-01 22:56:07,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:07,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:07,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:07,781 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) [2023-04-01 22:56:07,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-01 22:56:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:07,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-01 22:56:07,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 844 proven. 2 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-04-01 22:56:08,137 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:08,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1206 backedges. 550 proven. 86 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-04-01 22:56:08,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533746707] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:08,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:08,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 12 [2023-04-01 22:56:08,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586459579] [2023-04-01 22:56:08,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:08,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 22:56:08,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:08,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 22:56:08,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-01 22:56:08,953 INFO L87 Difference]: Start difference. First operand 3356 states and 3709 transitions. Second operand has 12 states, 12 states have (on average 50.666666666666664) internal successors, (608), 10 states have internal predecessors, (608), 5 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-01 22:56:10,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:10,567 INFO L93 Difference]: Finished difference Result 6740 states and 7520 transitions. [2023-04-01 22:56:10,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-01 22:56:10,568 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 50.666666666666664) internal successors, (608), 10 states have internal predecessors, (608), 5 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 641 [2023-04-01 22:56:10,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:10,579 INFO L225 Difference]: With dead ends: 6740 [2023-04-01 22:56:10,579 INFO L226 Difference]: Without dead ends: 3572 [2023-04-01 22:56:10,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1331 GetRequests, 1305 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2023-04-01 22:56:10,585 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2387 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2387 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:10,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2387 Valid, 57 Invalid, 1276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 22:56:10,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2023-04-01 22:56:10,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3544. [2023-04-01 22:56:10,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3544 states, 3463 states have (on average 1.0583309269419579) internal successors, (3665), 3502 states have internal predecessors, (3665), 21 states have call successors, (21), 21 states have call predecessors, (21), 59 states have return successors, (192), 20 states have call predecessors, (192), 20 states have call successors, (192) [2023-04-01 22:56:10,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3544 states to 3544 states and 3878 transitions. [2023-04-01 22:56:10,665 INFO L78 Accepts]: Start accepts. Automaton has 3544 states and 3878 transitions. Word has length 641 [2023-04-01 22:56:10,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:10,666 INFO L495 AbstractCegarLoop]: Abstraction has 3544 states and 3878 transitions. [2023-04-01 22:56:10,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 50.666666666666664) internal successors, (608), 10 states have internal predecessors, (608), 5 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-04-01 22:56:10,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3544 states and 3878 transitions. [2023-04-01 22:56:10,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2023-04-01 22:56:10,674 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:10,674 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:56:10,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-04-01 22:56:10,883 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,SelfDestructingSolverStorable9 [2023-04-01 22:56:10,884 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:10,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:10,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1339639452, now seen corresponding path program 1 times [2023-04-01 22:56:10,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:10,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839340631] [2023-04-01 22:56:10,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:10,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:11,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:11,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:11,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-04-01 22:56:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:12,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2023-04-01 22:56:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 581 proven. 93 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2023-04-01 22:56:12,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:12,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839340631] [2023-04-01 22:56:12,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839340631] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:12,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367088857] [2023-04-01 22:56:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:12,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:12,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:12,225 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:56:12,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-04-01 22:56:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:12,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-01 22:56:12,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 876 proven. 2 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-04-01 22:56:13,266 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1238 backedges. 582 proven. 86 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2023-04-01 22:56:13,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367088857] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:13,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:13,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 13 [2023-04-01 22:56:13,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505156899] [2023-04-01 22:56:13,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:13,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-01 22:56:13,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:13,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-01 22:56:13,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-04-01 22:56:13,969 INFO L87 Difference]: Start difference. First operand 3544 states and 3878 transitions. Second operand has 13 states, 13 states have (on average 47.84615384615385) internal successors, (622), 11 states have internal predecessors, (622), 6 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2023-04-01 22:56:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:16,215 INFO L93 Difference]: Finished difference Result 6900 states and 7570 transitions. [2023-04-01 22:56:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-04-01 22:56:16,216 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 47.84615384615385) internal successors, (622), 11 states have internal predecessors, (622), 6 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 690 [2023-04-01 22:56:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:16,230 INFO L225 Difference]: With dead ends: 6900 [2023-04-01 22:56:16,230 INFO L226 Difference]: Without dead ends: 3728 [2023-04-01 22:56:16,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1442 GetRequests, 1408 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=306, Invalid=954, Unknown=0, NotChecked=0, Total=1260 [2023-04-01 22:56:16,238 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2272 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:16,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 58 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 22:56:16,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2023-04-01 22:56:16,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 3546. [2023-04-01 22:56:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3546 states, 3464 states have (on average 1.0505196304849884) internal successors, (3639), 3504 states have internal predecessors, (3639), 21 states have call successors, (21), 21 states have call predecessors, (21), 60 states have return successors, (172), 20 states have call predecessors, (172), 20 states have call successors, (172) [2023-04-01 22:56:16,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3546 states to 3546 states and 3832 transitions. [2023-04-01 22:56:16,319 INFO L78 Accepts]: Start accepts. Automaton has 3546 states and 3832 transitions. Word has length 690 [2023-04-01 22:56:16,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:16,320 INFO L495 AbstractCegarLoop]: Abstraction has 3546 states and 3832 transitions. [2023-04-01 22:56:16,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 47.84615384615385) internal successors, (622), 11 states have internal predecessors, (622), 6 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2023-04-01 22:56:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 3546 states and 3832 transitions. [2023-04-01 22:56:16,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2023-04-01 22:56:16,329 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:16,329 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 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] [2023-04-01 22:56:16,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-04-01 22:56:16,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:16,536 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:16,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:16,537 INFO L85 PathProgramCache]: Analyzing trace with hash 108547879, now seen corresponding path program 1 times [2023-04-01 22:56:16,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:16,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014139377] [2023-04-01 22:56:16,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:16,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:17,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:17,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:17,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:17,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:17,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-04-01 22:56:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-04-01 22:56:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2023-04-01 22:56:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:17,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1608 backedges. 657 proven. 97 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2023-04-01 22:56:17,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:17,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014139377] [2023-04-01 22:56:17,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014139377] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:17,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271774050] [2023-04-01 22:56:17,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:17,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:17,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:17,974 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:56:18,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-01 22:56:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:18,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-01 22:56:18,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:18,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1608 backedges. 1030 proven. 2 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2023-04-01 22:56:18,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:20,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1608 backedges. 667 proven. 86 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2023-04-01 22:56:20,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271774050] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:20,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:20,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 16 [2023-04-01 22:56:20,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298814247] [2023-04-01 22:56:20,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:20,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-01 22:56:20,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:20,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-01 22:56:20,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-04-01 22:56:20,499 INFO L87 Difference]: Start difference. First operand 3546 states and 3832 transitions. Second operand has 16 states, 16 states have (on average 40.75) internal successors, (652), 14 states have internal predecessors, (652), 6 states have call successors, (12), 7 states have call predecessors, (12), 8 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-04-01 22:56:23,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:23,755 INFO L93 Difference]: Finished difference Result 6855 states and 7483 transitions. [2023-04-01 22:56:23,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-04-01 22:56:23,756 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 40.75) internal successors, (652), 14 states have internal predecessors, (652), 6 states have call successors, (12), 7 states have call predecessors, (12), 8 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 714 [2023-04-01 22:56:23,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:23,767 INFO L225 Difference]: With dead ends: 6855 [2023-04-01 22:56:23,767 INFO L226 Difference]: Without dead ends: 3433 [2023-04-01 22:56:23,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1509 GetRequests, 1456 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=671, Invalid=2191, Unknown=0, NotChecked=0, Total=2862 [2023-04-01 22:56:23,775 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3568 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3571 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:23,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3571 Valid, 106 Invalid, 2464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 22:56:23,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2023-04-01 22:56:23,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3168. [2023-04-01 22:56:23,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 3097 states have (on average 1.0429447852760736) internal successors, (3230), 3130 states have internal predecessors, (3230), 19 states have call successors, (19), 19 states have call predecessors, (19), 51 states have return successors, (143), 18 states have call predecessors, (143), 18 states have call successors, (143) [2023-04-01 22:56:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 3392 transitions. [2023-04-01 22:56:23,845 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 3392 transitions. Word has length 714 [2023-04-01 22:56:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:23,845 INFO L495 AbstractCegarLoop]: Abstraction has 3168 states and 3392 transitions. [2023-04-01 22:56:23,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 40.75) internal successors, (652), 14 states have internal predecessors, (652), 6 states have call successors, (12), 7 states have call predecessors, (12), 8 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-04-01 22:56:23,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 3392 transitions. [2023-04-01 22:56:23,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2023-04-01 22:56:23,853 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:23,853 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:56:23,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-04-01 22:56:24,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-04-01 22:56:24,061 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:24,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:24,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1305613394, now seen corresponding path program 1 times [2023-04-01 22:56:24,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:24,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460674681] [2023-04-01 22:56:24,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:24,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:24,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:24,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:24,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:24,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-04-01 22:56:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:24,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-04-01 22:56:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:24,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2023-04-01 22:56:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 612 proven. 345 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2023-04-01 22:56:24,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:24,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460674681] [2023-04-01 22:56:24,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460674681] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:24,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240579977] [2023-04-01 22:56:24,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:24,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:24,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:24,928 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:56:24,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-04-01 22:56:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:25,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:56:25,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 1124 proven. 2 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2023-04-01 22:56:25,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1610 backedges. 478 proven. 150 refuted. 0 times theorem prover too weak. 982 trivial. 0 not checked. [2023-04-01 22:56:25,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240579977] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:25,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:25,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 10 [2023-04-01 22:56:25,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336729834] [2023-04-01 22:56:25,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:25,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-01 22:56:25,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:25,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-01 22:56:25,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-04-01 22:56:25,451 INFO L87 Difference]: Start difference. First operand 3168 states and 3392 transitions. Second operand has 10 states, 10 states have (on average 62.9) internal successors, (629), 8 states have internal predecessors, (629), 4 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-04-01 22:56:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:26,355 INFO L93 Difference]: Finished difference Result 7070 states and 7587 transitions. [2023-04-01 22:56:26,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-01 22:56:26,361 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 62.9) internal successors, (629), 8 states have internal predecessors, (629), 4 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 721 [2023-04-01 22:56:26,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:26,381 INFO L225 Difference]: With dead ends: 7070 [2023-04-01 22:56:26,382 INFO L226 Difference]: Without dead ends: 4274 [2023-04-01 22:56:26,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1474 GetRequests, 1457 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-04-01 22:56:26,390 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 900 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:26,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 52 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 22:56:26,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4274 states. [2023-04-01 22:56:26,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4274 to 3906. [2023-04-01 22:56:26,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3906 states, 3822 states have (on average 1.0384615384615385) internal successors, (3969), 3860 states have internal predecessors, (3969), 23 states have call successors, (23), 23 states have call predecessors, (23), 60 states have return successors, (162), 22 states have call predecessors, (162), 22 states have call successors, (162) [2023-04-01 22:56:26,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 4154 transitions. [2023-04-01 22:56:26,490 INFO L78 Accepts]: Start accepts. Automaton has 3906 states and 4154 transitions. Word has length 721 [2023-04-01 22:56:26,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:26,491 INFO L495 AbstractCegarLoop]: Abstraction has 3906 states and 4154 transitions. [2023-04-01 22:56:26,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 62.9) internal successors, (629), 8 states have internal predecessors, (629), 4 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-04-01 22:56:26,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3906 states and 4154 transitions. [2023-04-01 22:56:26,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2023-04-01 22:56:26,502 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:26,503 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 22:56:26,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-04-01 22:56:26,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-01 22:56:26,710 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:26,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:26,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1431617460, now seen corresponding path program 1 times [2023-04-01 22:56:26,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:26,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604673917] [2023-04-01 22:56:26,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:26,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-04-01 22:56:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2023-04-01 22:56:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2023-04-01 22:56:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2023-04-01 22:56:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 595 proven. 160 refuted. 0 times theorem prover too weak. 1549 trivial. 0 not checked. [2023-04-01 22:56:27,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:27,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604673917] [2023-04-01 22:56:27,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604673917] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:27,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303231331] [2023-04-01 22:56:27,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:27,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:27,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:27,661 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:56:27,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-04-01 22:56:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:27,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:56:27,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 1485 proven. 2 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2023-04-01 22:56:27,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 602 proven. 150 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2023-04-01 22:56:28,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303231331] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:28,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:28,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 12 [2023-04-01 22:56:28,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741679648] [2023-04-01 22:56:28,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:28,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 22:56:28,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:28,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 22:56:28,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-04-01 22:56:28,196 INFO L87 Difference]: Start difference. First operand 3906 states and 4154 transitions. Second operand has 12 states, 12 states have (on average 49.166666666666664) internal successors, (590), 10 states have internal predecessors, (590), 5 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-01 22:56:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:29,458 INFO L93 Difference]: Finished difference Result 7444 states and 7936 transitions. [2023-04-01 22:56:29,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-01 22:56:29,459 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 49.166666666666664) internal successors, (590), 10 states have internal predecessors, (590), 5 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 880 [2023-04-01 22:56:29,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:29,470 INFO L225 Difference]: With dead ends: 7444 [2023-04-01 22:56:29,470 INFO L226 Difference]: Without dead ends: 3910 [2023-04-01 22:56:29,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1812 GetRequests, 1784 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2023-04-01 22:56:29,477 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2259 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:29,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 63 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-01 22:56:29,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3910 states. [2023-04-01 22:56:29,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3910 to 3904. [2023-04-01 22:56:29,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3821 states have (on average 1.0324522376341272) internal successors, (3945), 3858 states have internal predecessors, (3945), 23 states have call successors, (23), 23 states have call predecessors, (23), 59 states have return successors, (138), 22 states have call predecessors, (138), 22 states have call successors, (138) [2023-04-01 22:56:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 4106 transitions. [2023-04-01 22:56:29,558 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 4106 transitions. Word has length 880 [2023-04-01 22:56:29,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:29,559 INFO L495 AbstractCegarLoop]: Abstraction has 3904 states and 4106 transitions. [2023-04-01 22:56:29,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 49.166666666666664) internal successors, (590), 10 states have internal predecessors, (590), 5 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-01 22:56:29,559 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 4106 transitions. [2023-04-01 22:56:29,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 892 [2023-04-01 22:56:29,568 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:29,569 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 22:56:29,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-04-01 22:56:29,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-04-01 22:56:29,776 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:29,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:29,776 INFO L85 PathProgramCache]: Analyzing trace with hash 764614657, now seen corresponding path program 1 times [2023-04-01 22:56:29,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:29,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561824516] [2023-04-01 22:56:29,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:29,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-04-01 22:56:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2023-04-01 22:56:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2023-04-01 22:56:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2023-04-01 22:56:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2308 backedges. 509 proven. 372 refuted. 0 times theorem prover too weak. 1427 trivial. 0 not checked. [2023-04-01 22:56:30,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:30,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561824516] [2023-04-01 22:56:30,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561824516] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:30,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433556469] [2023-04-01 22:56:30,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:30,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:30,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:30,612 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:56:30,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-04-01 22:56:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:30,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:56:30,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2308 backedges. 1632 proven. 2 refuted. 0 times theorem prover too weak. 674 trivial. 0 not checked. [2023-04-01 22:56:31,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2308 backedges. 628 proven. 335 refuted. 0 times theorem prover too weak. 1345 trivial. 0 not checked. [2023-04-01 22:56:32,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433556469] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:32,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:32,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-04-01 22:56:32,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377224076] [2023-04-01 22:56:32,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:32,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 22:56:32,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:32,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 22:56:32,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-04-01 22:56:32,431 INFO L87 Difference]: Start difference. First operand 3904 states and 4106 transitions. Second operand has 11 states, 11 states have (on average 75.0909090909091) internal successors, (826), 9 states have internal predecessors, (826), 4 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 22:56:33,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:33,484 INFO L93 Difference]: Finished difference Result 8960 states and 9494 transitions. [2023-04-01 22:56:33,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-01 22:56:33,484 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 75.0909090909091) internal successors, (826), 9 states have internal predecessors, (826), 4 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 891 [2023-04-01 22:56:33,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:33,497 INFO L225 Difference]: With dead ends: 8960 [2023-04-01 22:56:33,497 INFO L226 Difference]: Without dead ends: 5428 [2023-04-01 22:56:33,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1826 GetRequests, 1802 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2023-04-01 22:56:33,506 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1357 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:33,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 79 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 22:56:33,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5428 states. [2023-04-01 22:56:33,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5428 to 5020. [2023-04-01 22:56:33,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5020 states, 4913 states have (on average 1.026460411154081) internal successors, (5043), 4962 states have internal predecessors, (5043), 29 states have call successors, (29), 29 states have call predecessors, (29), 77 states have return successors, (150), 28 states have call predecessors, (150), 28 states have call successors, (150) [2023-04-01 22:56:33,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5020 states to 5020 states and 5222 transitions. [2023-04-01 22:56:33,611 INFO L78 Accepts]: Start accepts. Automaton has 5020 states and 5222 transitions. Word has length 891 [2023-04-01 22:56:33,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:33,612 INFO L495 AbstractCegarLoop]: Abstraction has 5020 states and 5222 transitions. [2023-04-01 22:56:33,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 75.0909090909091) internal successors, (826), 9 states have internal predecessors, (826), 4 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 22:56:33,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5020 states and 5222 transitions. [2023-04-01 22:56:33,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2023-04-01 22:56:33,623 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:33,623 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:56:33,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-04-01 22:56:33,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-01 22:56:33,831 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:33,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:33,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1164295470, now seen corresponding path program 1 times [2023-04-01 22:56:33,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:33,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86318548] [2023-04-01 22:56:33,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:33,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-04-01 22:56:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-04-01 22:56:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2023-04-01 22:56:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2023-04-01 22:56:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2023-04-01 22:56:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 1648 proven. 62 refuted. 0 times theorem prover too weak. 1211 trivial. 0 not checked. [2023-04-01 22:56:36,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:36,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86318548] [2023-04-01 22:56:36,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86318548] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:36,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997433979] [2023-04-01 22:56:36,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:36,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:36,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:36,527 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:56:36,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-04-01 22:56:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:36,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-01 22:56:36,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:37,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 1482 proven. 6 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2023-04-01 22:56:37,197 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 1482 proven. 86 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2023-04-01 22:56:38,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997433979] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:38,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:38,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 8] total 22 [2023-04-01 22:56:38,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243518909] [2023-04-01 22:56:38,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:38,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-01 22:56:38,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:38,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-01 22:56:38,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2023-04-01 22:56:38,020 INFO L87 Difference]: Start difference. First operand 5020 states and 5222 transitions. Second operand has 22 states, 22 states have (on average 40.0) internal successors, (880), 20 states have internal predecessors, (880), 11 states have call successors, (15), 9 states have call predecessors, (15), 10 states have return successors, (14), 11 states have call predecessors, (14), 9 states have call successors, (14) [2023-04-01 22:56:40,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:40,896 INFO L93 Difference]: Finished difference Result 11144 states and 11627 transitions. [2023-04-01 22:56:40,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-04-01 22:56:40,896 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 40.0) internal successors, (880), 20 states have internal predecessors, (880), 11 states have call successors, (15), 9 states have call predecessors, (15), 10 states have return successors, (14), 11 states have call predecessors, (14), 9 states have call successors, (14) Word has length 979 [2023-04-01 22:56:40,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:40,912 INFO L225 Difference]: With dead ends: 11144 [2023-04-01 22:56:40,912 INFO L226 Difference]: Without dead ends: 6496 [2023-04-01 22:56:40,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2046 GetRequests, 1998 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=625, Invalid=1727, Unknown=0, NotChecked=0, Total=2352 [2023-04-01 22:56:40,923 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4229 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 3776 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4229 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 3962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 3776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:40,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4229 Valid, 116 Invalid, 3962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 3776 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-04-01 22:56:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6496 states. [2023-04-01 22:56:41,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6496 to 5210. [2023-04-01 22:56:41,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5210 states, 5097 states have (on average 1.0253090052972336) internal successors, (5226), 5150 states have internal predecessors, (5226), 30 states have call successors, (30), 30 states have call predecessors, (30), 82 states have return successors, (151), 29 states have call predecessors, (151), 29 states have call successors, (151) [2023-04-01 22:56:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 5210 states and 5407 transitions. [2023-04-01 22:56:41,028 INFO L78 Accepts]: Start accepts. Automaton has 5210 states and 5407 transitions. Word has length 979 [2023-04-01 22:56:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:41,029 INFO L495 AbstractCegarLoop]: Abstraction has 5210 states and 5407 transitions. [2023-04-01 22:56:41,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 40.0) internal successors, (880), 20 states have internal predecessors, (880), 11 states have call successors, (15), 9 states have call predecessors, (15), 10 states have return successors, (14), 11 states have call predecessors, (14), 9 states have call successors, (14) [2023-04-01 22:56:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5210 states and 5407 transitions. [2023-04-01 22:56:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1540 [2023-04-01 22:56:41,065 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:41,066 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-01 22:56:41,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-04-01 22:56:41,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:41,273 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:41,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:41,274 INFO L85 PathProgramCache]: Analyzing trace with hash 108880700, now seen corresponding path program 1 times [2023-04-01 22:56:41,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:41,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311667000] [2023-04-01 22:56:41,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:41,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:42,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:42,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:42,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:42,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:42,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-04-01 22:56:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:42,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-04-01 22:56:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:42,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2023-04-01 22:56:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:42,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2023-04-01 22:56:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:42,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2023-04-01 22:56:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:43,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 997 [2023-04-01 22:56:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:43,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1179 [2023-04-01 22:56:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:43,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1292 [2023-04-01 22:56:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:43,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1417 [2023-04-01 22:56:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7222 backedges. 1335 proven. 475 refuted. 0 times theorem prover too weak. 5412 trivial. 0 not checked. [2023-04-01 22:56:43,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:43,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311667000] [2023-04-01 22:56:43,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311667000] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:43,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751886958] [2023-04-01 22:56:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:43,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:43,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:43,173 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:56:43,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-04-01 22:56:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:43,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 2108 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-01 22:56:43,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:43,953 INFO L134 CoverageAnalysis]: Checked inductivity of 7222 backedges. 2468 proven. 2 refuted. 0 times theorem prover too weak. 4752 trivial. 0 not checked. [2023-04-01 22:56:43,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:46,671 INFO L134 CoverageAnalysis]: Checked inductivity of 7222 backedges. 1615 proven. 86 refuted. 0 times theorem prover too weak. 5521 trivial. 0 not checked. [2023-04-01 22:56:46,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751886958] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:46,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:46,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 15 [2023-04-01 22:56:46,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700573334] [2023-04-01 22:56:46,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:46,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-01 22:56:46,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:46,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-01 22:56:46,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-04-01 22:56:46,674 INFO L87 Difference]: Start difference. First operand 5210 states and 5407 transitions. Second operand has 15 states, 15 states have (on average 45.0) internal successors, (675), 13 states have internal predecessors, (675), 6 states have call successors, (13), 7 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-04-01 22:56:51,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:51,023 INFO L93 Difference]: Finished difference Result 9872 states and 10286 transitions. [2023-04-01 22:56:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-04-01 22:56:51,024 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 45.0) internal successors, (675), 13 states have internal predecessors, (675), 6 states have call successors, (13), 7 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 1539 [2023-04-01 22:56:51,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:51,032 INFO L225 Difference]: With dead ends: 9872 [2023-04-01 22:56:51,032 INFO L226 Difference]: Without dead ends: 5034 [2023-04-01 22:56:51,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3188 GetRequests, 3125 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1242 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=624, Invalid=3408, Unknown=0, NotChecked=0, Total=4032 [2023-04-01 22:56:51,039 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 4893 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 4744 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4893 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 5014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 4744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:51,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4893 Valid, 218 Invalid, 5014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 4744 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-04-01 22:56:51,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5034 states. [2023-04-01 22:56:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5034 to 5016. [2023-04-01 22:56:51,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5016 states, 4911 states have (on average 1.0221950722867033) internal successors, (5020), 4958 states have internal predecessors, (5020), 29 states have call successors, (29), 29 states have call predecessors, (29), 75 states have return successors, (129), 28 states have call predecessors, (129), 28 states have call successors, (129) [2023-04-01 22:56:51,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 5178 transitions. [2023-04-01 22:56:51,138 INFO L78 Accepts]: Start accepts. Automaton has 5016 states and 5178 transitions. Word has length 1539 [2023-04-01 22:56:51,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:51,139 INFO L495 AbstractCegarLoop]: Abstraction has 5016 states and 5178 transitions. [2023-04-01 22:56:51,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 45.0) internal successors, (675), 13 states have internal predecessors, (675), 6 states have call successors, (13), 7 states have call predecessors, (13), 8 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-04-01 22:56:51,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5016 states and 5178 transitions. [2023-04-01 22:56:51,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1660 [2023-04-01 22:56:51,162 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:51,163 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-01 22:56:51,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-04-01 22:56:51,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-04-01 22:56:51,371 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:51,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:51,371 INFO L85 PathProgramCache]: Analyzing trace with hash 934271, now seen corresponding path program 1 times [2023-04-01 22:56:51,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:51,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413746266] [2023-04-01 22:56:51,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:51,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-04-01 22:56:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-04-01 22:56:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2023-04-01 22:56:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2023-04-01 22:56:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2023-04-01 22:56:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2023-04-01 22:56:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2023-04-01 22:56:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2023-04-01 22:56:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2023-04-01 22:56:52,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2023-04-01 22:56:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:52,765 INFO L134 CoverageAnalysis]: Checked inductivity of 8549 backedges. 1514 proven. 38 refuted. 0 times theorem prover too weak. 6997 trivial. 0 not checked. [2023-04-01 22:56:52,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413746266] [2023-04-01 22:56:52,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413746266] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:52,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591722205] [2023-04-01 22:56:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:52,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:52,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:52,767 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:56:52,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-04-01 22:56:53,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:53,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:56:53,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:56:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 8549 backedges. 1529 proven. 2 refuted. 0 times theorem prover too weak. 7018 trivial. 0 not checked. [2023-04-01 22:56:53,262 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:56:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 8549 backedges. 1529 proven. 2 refuted. 0 times theorem prover too weak. 7018 trivial. 0 not checked. [2023-04-01 22:56:53,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591722205] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:56:53,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:56:53,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 12 [2023-04-01 22:56:53,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515631919] [2023-04-01 22:56:53,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:56:53,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 22:56:53,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:56:53,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 22:56:53,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-04-01 22:56:53,663 INFO L87 Difference]: Start difference. First operand 5016 states and 5178 transitions. Second operand has 12 states, 12 states have (on average 40.583333333333336) internal successors, (487), 10 states have internal predecessors, (487), 5 states have call successors, (11), 7 states have call predecessors, (11), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 22:56:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:56:55,255 INFO L93 Difference]: Finished difference Result 9668 states and 9988 transitions. [2023-04-01 22:56:55,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-01 22:56:55,257 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 40.583333333333336) internal successors, (487), 10 states have internal predecessors, (487), 5 states have call successors, (11), 7 states have call predecessors, (11), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 1659 [2023-04-01 22:56:55,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:56:55,269 INFO L225 Difference]: With dead ends: 9668 [2023-04-01 22:56:55,269 INFO L226 Difference]: Without dead ends: 5024 [2023-04-01 22:56:55,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3383 GetRequests, 3354 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=203, Invalid=609, Unknown=0, NotChecked=0, Total=812 [2023-04-01 22:56:55,277 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 1702 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-01 22:56:55,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 74 Invalid, 2675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-01 22:56:55,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5024 states. [2023-04-01 22:56:55,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5024 to 5016. [2023-04-01 22:56:55,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5016 states, 4911 states have (on average 1.0209733251883526) internal successors, (5014), 4958 states have internal predecessors, (5014), 29 states have call successors, (29), 29 states have call predecessors, (29), 75 states have return successors, (123), 28 states have call predecessors, (123), 28 states have call successors, (123) [2023-04-01 22:56:55,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5016 states to 5016 states and 5166 transitions. [2023-04-01 22:56:55,379 INFO L78 Accepts]: Start accepts. Automaton has 5016 states and 5166 transitions. Word has length 1659 [2023-04-01 22:56:55,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:56:55,380 INFO L495 AbstractCegarLoop]: Abstraction has 5016 states and 5166 transitions. [2023-04-01 22:56:55,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 40.583333333333336) internal successors, (487), 10 states have internal predecessors, (487), 5 states have call successors, (11), 7 states have call predecessors, (11), 5 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-01 22:56:55,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5016 states and 5166 transitions. [2023-04-01 22:56:55,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1785 [2023-04-01 22:56:55,406 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:56:55,406 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-01 22:56:55,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-04-01 22:56:55,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-01 22:56:55,616 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:56:55,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:56:55,617 INFO L85 PathProgramCache]: Analyzing trace with hash -57918647, now seen corresponding path program 1 times [2023-04-01 22:56:55,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:56:55,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246287403] [2023-04-01 22:56:55,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:55,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:56:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:56:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:56:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-01 22:56:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-04-01 22:56:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2023-04-01 22:56:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2023-04-01 22:56:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2023-04-01 22:56:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2023-04-01 22:56:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2023-04-01 22:56:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2023-04-01 22:56:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2023-04-01 22:56:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2023-04-01 22:56:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2023-04-01 22:56:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2023-04-01 22:56:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2023-04-01 22:56:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:56:59,618 INFO L134 CoverageAnalysis]: Checked inductivity of 10021 backedges. 1618 proven. 26 refuted. 0 times theorem prover too weak. 8377 trivial. 0 not checked. [2023-04-01 22:56:59,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:56:59,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246287403] [2023-04-01 22:56:59,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246287403] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:56:59,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697799417] [2023-04-01 22:56:59,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:56:59,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:56:59,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:56:59,621 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:56:59,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-04-01 22:57:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:57:00,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 2424 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-01 22:57:00,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:57:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10021 backedges. 3987 proven. 126 refuted. 0 times theorem prover too weak. 5908 trivial. 0 not checked. [2023-04-01 22:57:00,837 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:57:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 10021 backedges. 1655 proven. 2 refuted. 0 times theorem prover too weak. 8364 trivial. 0 not checked. [2023-04-01 22:57:01,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697799417] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:57:01,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:57:01,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 6] total 21 [2023-04-01 22:57:01,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106508042] [2023-04-01 22:57:01,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:57:01,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-04-01 22:57:01,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:57:01,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-04-01 22:57:01,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2023-04-01 22:57:01,447 INFO L87 Difference]: Start difference. First operand 5016 states and 5166 transitions. Second operand has 21 states, 21 states have (on average 30.285714285714285) internal successors, (636), 19 states have internal predecessors, (636), 10 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2023-04-01 22:57:05,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:57:05,346 INFO L93 Difference]: Finished difference Result 13007 states and 13541 transitions. [2023-04-01 22:57:05,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-04-01 22:57:05,349 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 30.285714285714285) internal successors, (636), 19 states have internal predecessors, (636), 10 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) Word has length 1784 [2023-04-01 22:57:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:57:05,351 INFO L225 Difference]: With dead ends: 13007 [2023-04-01 22:57:05,351 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 22:57:05,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3688 GetRequests, 3633 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=623, Invalid=2457, Unknown=0, NotChecked=0, Total=3080 [2023-04-01 22:57:05,370 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 4469 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 5217 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 5470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 5217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-01 22:57:05,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 182 Invalid, 5470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 5217 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-01 22:57:05,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 22:57:05,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 22:57:05,371 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) [2023-04-01 22:57:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 22:57:05,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1784 [2023-04-01 22:57:05,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:57:05,372 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 22:57:05,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 30.285714285714285) internal successors, (636), 19 states have internal predecessors, (636), 10 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (12), 10 states have call predecessors, (12), 7 states have call successors, (12) [2023-04-01 22:57:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 22:57:05,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 22:57:05,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 22:57:05,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-04-01 22:57:05,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:57:05,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 22:57:11,622 WARN L223 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 427 DAG size of output: 370 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-01 22:57:18,793 WARN L223 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 427 DAG size of output: 370 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-01 22:57:22,591 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2023-04-01 22:57:22,591 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 12) no Hoare annotation was computed. [2023-04-01 22:57:22,591 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 12) no Hoare annotation was computed. [2023-04-01 22:57:22,591 INFO L899 garLoopResultBuilder]: For program point L898-1(line 898) no Hoare annotation was computed. [2023-04-01 22:57:22,591 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-04-01 22:57:22,591 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 884 900) no Hoare annotation was computed. [2023-04-01 22:57:22,591 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse9 (<= ~a15~0 7)) (.cse6 (= ~a21~0 10))) (let ((.cse1 (or (< ~a12~0 12) (< ~a21~0 9))) (.cse5 (not (= ~a15~0 10))) (.cse4 (or (<= ~a15~0 6) (and .cse9 (not .cse6)))) (.cse7 (< ~a12~0 81)) (.cse8 (<= (+ ~a12~0 43) 0)) (.cse0 (= ~a24~0 1)) (.cse3 (<= 7 ~a21~0)) (.cse2 (= ~a15~0 8))) (or (< |old(~a21~0)| 7) (and (<= 9 ~a21~0) .cse0 .cse1 .cse2) (and .cse0 .cse3 (= ~a12~0 |old(~a12~0)|) .cse2) (and .cse0 .cse4) (and .cse0 .cse5 .cse6 (<= 8 ~a15~0) .cse1) (and (<= 19 ~a12~0) .cse0 .cse5 (<= ~a12~0 586307)) (and .cse0 .cse3 (< ~a12~0 600130) .cse5 (<= 95381 ~a12~0)) (and .cse0 .cse7 .cse5 (<= 8 ~a21~0) (<= ~a21~0 8)) (not (= |old(~a24~0)| 1)) (< 0 (+ 49 |old(~a12~0)|)) (and .cse8 (<= ~a21~0 6) .cse9) (and .cse4 .cse7 (not (= ~a24~0 2))) (and .cse8 .cse0 .cse9) (< 8 |old(~a15~0)|) (and .cse0 .cse3 (<= 0 (+ ~a12~0 2)) (<= ~a12~0 2) .cse2) (< 7 |old(~a21~0)|) (< |old(~a15~0)| 8)))) [2023-04-01 22:57:22,591 INFO L899 garLoopResultBuilder]: For program point L890-3(lines 884 900) no Hoare annotation was computed. [2023-04-01 22:57:22,592 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 884 900) the Hoare annotation is: (or (and (= ~a24~0 1) (<= 7 ~a21~0) (<= ~a21~0 7) (= ~a12~0 |old(~a12~0)|) (= ~a15~0 8)) (< |old(~a21~0)| 7) (not (= |old(~a24~0)| 1)) (< 0 (+ 49 |old(~a12~0)|)) (< 8 |old(~a15~0)|) (< 7 |old(~a21~0)|) (< |old(~a15~0)| 8)) [2023-04-01 22:57:22,592 INFO L895 garLoopResultBuilder]: At program point L898(line 898) the Hoare annotation is: (let ((.cse9 (<= ~a15~0 7)) (.cse6 (= ~a21~0 10))) (let ((.cse1 (or (< ~a12~0 12) (< ~a21~0 9))) (.cse5 (not (= ~a15~0 10))) (.cse4 (or (<= ~a15~0 6) (and .cse9 (not .cse6)))) (.cse7 (< ~a12~0 81)) (.cse8 (<= (+ ~a12~0 43) 0)) (.cse0 (= ~a24~0 1)) (.cse3 (<= 7 ~a21~0)) (.cse2 (= ~a15~0 8))) (or (< |old(~a21~0)| 7) (and (<= 9 ~a21~0) .cse0 .cse1 .cse2) (and .cse0 .cse3 (= ~a12~0 |old(~a12~0)|) .cse2) (and .cse0 .cse4) (and .cse0 .cse5 .cse6 (<= 8 ~a15~0) .cse1) (and (<= 19 ~a12~0) .cse0 .cse5 (<= ~a12~0 586307)) (and .cse0 .cse3 (< ~a12~0 600130) .cse5 (<= 95381 ~a12~0)) (and .cse0 .cse7 .cse5 (<= 8 ~a21~0) (<= ~a21~0 8)) (not (= |old(~a24~0)| 1)) (< 0 (+ 49 |old(~a12~0)|)) (and .cse8 (<= ~a21~0 6) .cse9) (and .cse4 .cse7 (not (= ~a24~0 2))) (and .cse8 .cse0 .cse9) (< 8 |old(~a15~0)|) (and .cse0 .cse3 (<= 0 (+ ~a12~0 2)) (<= ~a12~0 2) .cse2) (< 7 |old(~a21~0)|) (< |old(~a15~0)| 8)))) [2023-04-01 22:57:22,592 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2023-04-01 22:57:22,592 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= ~a21~0 |old(~a21~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~a15~0 |old(~a15~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~inputF~0 |old(~inputF~0)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-04-01 22:57:22,592 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 22:57:22,592 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2023-04-01 22:57:22,592 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2023-04-01 22:57:22,592 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2023-04-01 22:57:22,592 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2023-04-01 22:57:22,592 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,592 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,592 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2023-04-01 22:57:22,593 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2023-04-01 22:57:22,594 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2023-04-01 22:57:22,595 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point calculate_outputEXIT(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,596 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2023-04-01 22:57:22,597 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2023-04-01 22:57:22,598 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-04-01 22:57:22,599 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2023-04-01 22:57:22,599 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2023-04-01 22:57:22,600 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,601 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,602 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2023-04-01 22:57:22,603 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 128) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,604 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point calculate_outputFINAL(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,605 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2023-04-01 22:57:22,606 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2023-04-01 22:57:22,607 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 30 882) the Hoare annotation is: (let ((.cse26 (= 10 |old(~a21~0)|)) (.cse18 (< |old(~a15~0)| 8))) (let ((.cse0 (< 7 |old(~a15~0)|)) (.cse13 (and .cse26 .cse18)) (.cse22 (= ~a21~0 |old(~a21~0)|)) (.cse24 (<= 7 ~a21~0)) (.cse25 (<= ~a21~0 7)) (.cse23 (= ~a15~0 8)) (.cse19 (= ~a24~0 1)) (.cse20 (= ~a15~0 |old(~a15~0)|)) (.cse21 (= ~a12~0 |old(~a12~0)|))) (let ((.cse2 (< 0 (+ 43 |old(~a12~0)|))) (.cse1 (and .cse19 .cse20 .cse21 (= ~a21~0 10))) (.cse3 (not .cse26)) (.cse14 (and .cse19 .cse24 .cse25 .cse21 .cse23)) (.cse15 (not (= 8 |old(~a15~0)|))) (.cse12 (< 11 |old(~a12~0)|)) (.cse10 (< |old(~a21~0)| 9)) (.cse5 (and .cse22 .cse20 .cse21 (= ~a24~0 |old(~a24~0)|))) (.cse16 (< |old(~a21~0)| 7)) (.cse7 (< |old(~a12~0)| 95381)) (.cse9 (= 10 |old(~a15~0)|)) (.cse11 (<= 600130 |old(~a12~0)|)) (.cse17 (< 7 |old(~a21~0)|)) (.cse8 (and .cse22 .cse19 .cse20 .cse21)) (.cse4 (not (= |old(~a24~0)| 1))) (.cse6 (and (or .cse0 .cse13) (< 6 |old(~a15~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (< 6 |old(~a21~0)|) .cse2 .cse5 .cse6) (or .cse7 .cse8 .cse9 .cse10 .cse4 .cse11) (or .cse8 .cse9 .cse4 (< 586307 |old(~a12~0)|) (< |old(~a12~0)| 19)) (or .cse12 .cse1 .cse9 .cse3 .cse4 .cse13) (or .cse14 .cse15 .cse16 (< 2 |old(~a12~0)|) .cse4 (< (+ 2 |old(~a12~0)|) 0) .cse17) (or .cse14 .cse16 .cse4 (< 0 (+ 49 |old(~a12~0)|)) (< 8 |old(~a15~0)|) .cse17 .cse18) (or (< |old(~a21~0)| 8) .cse9 .cse4 (and .cse19 .cse20 .cse21 (<= 8 ~a21~0) (<= ~a21~0 8)) .cse11 (< 8 |old(~a21~0)|)) (or .cse15 .cse12 (and .cse22 .cse19 .cse21 .cse23) .cse10 .cse4) (or (<= 81 |old(~a12~0)|) .cse5 .cse6 (= 2 |old(~a24~0)|)) (or .cse16 .cse7 .cse9 .cse4 .cse11 (and .cse19 .cse24 .cse20 .cse25 .cse21) .cse17) (or .cse8 .cse4 .cse6))))) [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2023-04-01 22:57:22,608 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-04-01 22:57:22,609 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2023-04-01 22:57:22,609 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2023-04-01 22:57:22,609 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2023-04-01 22:57:22,609 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2023-04-01 22:57:22,609 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,609 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,609 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2023-04-01 22:57:22,610 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2023-04-01 22:57:22,610 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2023-04-01 22:57:22,610 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2023-04-01 22:57:22,610 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-04-01 22:57:22,610 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 22:57:22,610 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a24~0 1) (<= 7 ~a21~0) (<= ~a21~0 7) (<= (+ 49 ~a12~0) 0) (= ~a15~0 8)) [2023-04-01 22:57:22,612 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 22:57:22,612 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 22:57:22,615 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:57:22,617 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 22:57:22,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 10:57:22 BoogieIcfgContainer [2023-04-01 22:57:22,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 22:57:22,642 INFO L158 Benchmark]: Toolchain (without parser) took 108398.64ms. Allocated memory was 184.5MB in the beginning and 887.1MB in the end (delta: 702.5MB). Free memory was 125.1MB in the beginning and 356.8MB in the end (delta: -231.7MB). Peak memory consumption was 524.4MB. Max. memory is 8.0GB. [2023-04-01 22:57:22,642 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 22:57:22,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 615.37ms. Allocated memory was 184.5MB in the beginning and 293.6MB in the end (delta: 109.1MB). Free memory was 125.1MB in the beginning and 256.7MB in the end (delta: -131.6MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. [2023-04-01 22:57:22,642 INFO L158 Benchmark]: Boogie Preprocessor took 137.91ms. Allocated memory is still 293.6MB. Free memory was 256.7MB in the beginning and 250.9MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-04-01 22:57:22,642 INFO L158 Benchmark]: RCFGBuilder took 1439.01ms. Allocated memory is still 293.6MB. Free memory was 250.9MB in the beginning and 149.7MB in the end (delta: 101.2MB). Peak memory consumption was 101.7MB. Max. memory is 8.0GB. [2023-04-01 22:57:22,643 INFO L158 Benchmark]: TraceAbstraction took 106201.86ms. Allocated memory was 293.6MB in the beginning and 887.1MB in the end (delta: 593.5MB). Free memory was 149.2MB in the beginning and 356.8MB in the end (delta: -207.6MB). Peak memory consumption was 437.8MB. Max. memory is 8.0GB. [2023-04-01 22:57:22,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 615.37ms. Allocated memory was 184.5MB in the beginning and 293.6MB in the end (delta: 109.1MB). Free memory was 125.1MB in the beginning and 256.7MB in the end (delta: -131.6MB). Peak memory consumption was 34.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 137.91ms. Allocated memory is still 293.6MB. Free memory was 256.7MB in the beginning and 250.9MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1439.01ms. Allocated memory is still 293.6MB. Free memory was 250.9MB in the beginning and 149.7MB in the end (delta: 101.2MB). Peak memory consumption was 101.7MB. Max. memory is 8.0GB. * TraceAbstraction took 106201.86ms. Allocated memory was 293.6MB in the beginning and 887.1MB in the end (delta: 593.5MB). Free memory was 149.2MB in the beginning and 356.8MB in the end (delta: -207.6MB). Peak memory consumption was 437.8MB. 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: 128]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 257 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 106.1s, OverallIterations: 19, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 38.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 17.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38166 SdHoareTripleChecker+Valid, 28.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38145 mSDsluCounter, 1928 SdHoareTripleChecker+Invalid, 23.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1239 mSDsCounter, 4917 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39243 IncrementalHoareTripleChecker+Invalid, 44160 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4917 mSolverCounterUnsat, 689 mSDtfsCounter, 39243 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25091 GetRequests, 24547 SyntacticMatches, 16 SemanticMatches, 528 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5471 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5210occurred in iteration=16, InterpolantAutomatonStates: 421, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 5111 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 318 PreInvPairs, 450 NumberOfFragments, 894 HoareAnnotationTreeSize, 318 FomulaSimplifications, 622699 FormulaSimplificationTreeSizeReduction, 13.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 28431 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 40.4s InterpolantComputationTime, 25182 NumberOfCodeBlocks, 25182 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 36776 ConstructedInterpolants, 38 QuantifiedInterpolants, 93110 SizeOfPredicates, 26 NumberOfNonLiveVariables, 18420 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 49 InterpolantComputations, 6 PerfectInterpolantSequences, 119188/123291 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: (((((((((((((((\old(a21) < 7 || (((9 <= a21 && a24 == 1) && (a12 < 12 || a21 < 9)) && a15 == 8)) || (((a24 == 1 && 7 <= a21) && a12 == \old(a12)) && a15 == 8)) || (a24 == 1 && (a15 <= 6 || (a15 <= 7 && !(a21 == 10))))) || ((((a24 == 1 && !(a15 == 10)) && a21 == 10) && 8 <= a15) && (a12 < 12 || a21 < 9))) || (((19 <= a12 && a24 == 1) && !(a15 == 10)) && a12 <= 586307)) || ((((a24 == 1 && 7 <= a21) && a12 < 600130) && !(a15 == 10)) && 95381 <= a12)) || ((((a24 == 1 && a12 < 81) && !(a15 == 10)) && 8 <= a21) && a21 <= 8)) || !(\old(a24) == 1)) || 0 < 49 + \old(a12)) || ((a12 + 43 <= 0 && a21 <= 6) && a15 <= 7)) || (((a15 <= 6 || (a15 <= 7 && !(a21 == 10))) && a12 < 81) && !(a24 == 2))) || ((a12 + 43 <= 0 && a24 == 1) && a15 <= 7)) || 8 < \old(a15)) || ((((a24 == 1 && 7 <= a21) && 0 <= a12 + 2) && a12 <= 2) && a15 == 8)) || 7 < \old(a21)) || \old(a15) < 8 RESULT: Ultimate proved your program to be correct! [2023-04-01 22:57:22,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...