/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/Problem16_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 23:17:20,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 23:17:20,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 23:17:20,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-01 23:17:20,518 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 23:17:20,535 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 23:17:20,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 23:17:20,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 23:17:20,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 23:17:20,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 23:17:20,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 23:17:20,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 23:17:20,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 23:17:20,537 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 23:17:20,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 23:17:20,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 23:17:20,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 23:17:20,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 23:17:20,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 23:17:20,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 23:17:20,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 23:17:20,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 23:17:20,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 23:17:20,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 23:17:20,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 23:17:20,539 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 23:17:20,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 23:17:20,540 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 23:17:20,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 23:17:20,540 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 23:17:20,540 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 23:17:20,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 23:17:20,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 23:17:20,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 23:17:20,696 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 23:17:20,700 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 23:17:20,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label52.c [2023-04-01 23:17:21,621 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 23:17:21,912 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 23:17:21,912 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label52.c [2023-04-01 23:17:21,927 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2ca7c8b/2f8ea93953324207bfc04ab896580c5f/FLAG119201105 [2023-04-01 23:17:21,939 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b2ca7c8b/2f8ea93953324207bfc04ab896580c5f [2023-04-01 23:17:21,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 23:17:21,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 23:17:21,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 23:17:21,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 23:17:21,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 23:17:21,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:17:21" (1/1) ... [2023-04-01 23:17:21,946 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11053f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:21, skipping insertion in model container [2023-04-01 23:17:21,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:17:21" (1/1) ... [2023-04-01 23:17:21,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 23:17:21,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 23:17:22,144 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/Problem16_label52.c[3233,3246] [2023-04-01 23:17:22,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 23:17:22,401 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 23:17:22,420 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/Problem16_label52.c[3233,3246] [2023-04-01 23:17:22,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 23:17:22,602 INFO L208 MainTranslator]: Completed translation [2023-04-01 23:17:22,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22 WrapperNode [2023-04-01 23:17:22,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 23:17:22,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 23:17:22,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 23:17:22,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 23:17:22,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (1/1) ... [2023-04-01 23:17:22,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (1/1) ... [2023-04-01 23:17:22,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (1/1) ... [2023-04-01 23:17:22,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (1/1) ... [2023-04-01 23:17:22,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (1/1) ... [2023-04-01 23:17:22,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (1/1) ... [2023-04-01 23:17:22,703 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (1/1) ... [2023-04-01 23:17:22,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (1/1) ... [2023-04-01 23:17:22,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 23:17:22,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 23:17:22,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 23:17:22,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 23:17:22,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (1/1) ... [2023-04-01 23:17:22,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 23:17:22,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:22,768 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 23:17:22,770 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 23:17:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 23:17:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 23:17:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 23:17:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 23:17:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 23:17:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 23:17:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 23:17:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 23:17:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 23:17:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 23:17:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 23:17:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 23:17:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 23:17:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 23:17:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 23:17:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 23:17:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 23:17:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 23:17:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 23:17:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 23:17:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 23:17:22,879 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 23:17:22,880 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 23:17:24,306 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 23:17:24,313 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 23:17:24,313 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 23:17:24,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:17:24 BoogieIcfgContainer [2023-04-01 23:17:24,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 23:17:24,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 23:17:24,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 23:17:24,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 23:17:24,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:17:21" (1/3) ... [2023-04-01 23:17:24,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c50552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:17:24, skipping insertion in model container [2023-04-01 23:17:24,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:17:22" (2/3) ... [2023-04-01 23:17:24,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c50552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:17:24, skipping insertion in model container [2023-04-01 23:17:24,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:17:24" (3/3) ... [2023-04-01 23:17:24,320 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label52.c [2023-04-01 23:17:24,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 23:17:24,331 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 23:17:24,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 23:17:24,369 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;@4df58c42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 23:17:24,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 23:17:24,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 409 states, 399 states have (on average 1.8245614035087718) internal successors, (728), 400 states have internal predecessors, (728), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-01 23:17:24,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-04-01 23:17:24,378 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:24,378 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] [2023-04-01 23:17:24,379 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:24,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:24,382 INFO L85 PathProgramCache]: Analyzing trace with hash -235061612, now seen corresponding path program 1 times [2023-04-01 23:17:24,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:24,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492430748] [2023-04-01 23:17:24,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:24,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:24,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:24,632 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 23:17:24,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:24,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492430748] [2023-04-01 23:17:24,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492430748] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:17:24,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 23:17:24,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 23:17:24,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894898469] [2023-04-01 23:17:24,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:17:24,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 23:17:24,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 23:17:24,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 23:17:24,656 INFO L87 Difference]: Start difference. First operand has 409 states, 399 states have (on average 1.8245614035087718) internal successors, (728), 400 states have internal predecessors, (728), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 23:17:27,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:27,287 INFO L93 Difference]: Finished difference Result 1515 states and 2850 transitions. [2023-04-01 23:17:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 23:17:27,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 35 [2023-04-01 23:17:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:27,307 INFO L225 Difference]: With dead ends: 1515 [2023-04-01 23:17:27,307 INFO L226 Difference]: Without dead ends: 1038 [2023-04-01 23:17:27,316 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 23:17:27,318 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2298 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 1191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 2942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1191 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:27,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 41 Invalid, 2942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1191 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-01 23:17:27,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2023-04-01 23:17:27,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1031. [2023-04-01 23:17:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 1010 states have (on average 1.5712871287128714) internal successors, (1587), 1013 states have internal predecessors, (1587), 8 states have call successors, (8), 8 states have call predecessors, (8), 12 states have return successors, (24), 9 states have call predecessors, (24), 7 states have call successors, (24) [2023-04-01 23:17:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1619 transitions. [2023-04-01 23:17:27,419 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1619 transitions. Word has length 35 [2023-04-01 23:17:27,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:27,420 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1619 transitions. [2023-04-01 23:17:27,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 23:17:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1619 transitions. [2023-04-01 23:17:27,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-01 23:17:27,429 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:27,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:27,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 23:17:27,430 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:27,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:27,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1418227275, now seen corresponding path program 1 times [2023-04-01 23:17:27,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:27,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253234616] [2023-04-01 23:17:27,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:27,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:27,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:27,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:27,998 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:17:27,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:27,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253234616] [2023-04-01 23:17:27,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253234616] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:17:27,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 23:17:27,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 23:17:27,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148073251] [2023-04-01 23:17:28,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:17:28,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 23:17:28,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:28,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 23:17:28,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 23:17:28,003 INFO L87 Difference]: Start difference. First operand 1031 states and 1619 transitions. Second operand has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 5 states have internal predecessors, (164), 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 23:17:30,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:30,091 INFO L93 Difference]: Finished difference Result 3125 states and 5015 transitions. [2023-04-01 23:17:30,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 23:17:30,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 5 states have internal predecessors, (164), 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 170 [2023-04-01 23:17:30,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:30,107 INFO L225 Difference]: With dead ends: 3125 [2023-04-01 23:17:30,107 INFO L226 Difference]: Without dead ends: 2100 [2023-04-01 23:17:30,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-04-01 23:17:30,116 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1654 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 2177 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 2989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 2177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:30,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 57 Invalid, 2989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 2177 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-01 23:17:30,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2023-04-01 23:17:30,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2069. [2023-04-01 23:17:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2024 states have (on average 1.5019762845849802) internal successors, (3040), 2036 states have internal predecessors, (3040), 14 states have call successors, (14), 14 states have call predecessors, (14), 30 states have return successors, (92), 18 states have call predecessors, (92), 13 states have call successors, (92) [2023-04-01 23:17:30,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 3146 transitions. [2023-04-01 23:17:30,187 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 3146 transitions. Word has length 170 [2023-04-01 23:17:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:30,189 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 3146 transitions. [2023-04-01 23:17:30,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.428571428571427) internal successors, (164), 5 states have internal predecessors, (164), 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 23:17:30,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 3146 transitions. [2023-04-01 23:17:30,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-04-01 23:17:30,196 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:30,196 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:17:30,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 23:17:30,197 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:30,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:30,198 INFO L85 PathProgramCache]: Analyzing trace with hash 352992920, now seen corresponding path program 1 times [2023-04-01 23:17:30,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:30,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211091285] [2023-04-01 23:17:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:30,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:30,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-01 23:17:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:30,464 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 56 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-01 23:17:30,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:30,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211091285] [2023-04-01 23:17:30,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211091285] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:17:30,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819559439] [2023-04-01 23:17:30,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:30,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:30,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:30,483 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 23:17:30,504 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 23:17:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:30,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-01 23:17:30,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:17:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-01 23:17:30,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 23:17:30,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819559439] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:17:30,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 23:17:30,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-04-01 23:17:30,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382985771] [2023-04-01 23:17:30,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:17:30,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 23:17:30,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 23:17:30,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-04-01 23:17:30,782 INFO L87 Difference]: Start difference. First operand 2069 states and 3146 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 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 23:17:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:32,119 INFO L93 Difference]: Finished difference Result 5205 states and 7976 transitions. [2023-04-01 23:17:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 23:17:32,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 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 205 [2023-04-01 23:17:32,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:32,134 INFO L225 Difference]: With dead ends: 5205 [2023-04-01 23:17:32,134 INFO L226 Difference]: Without dead ends: 3142 [2023-04-01 23:17:32,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-04-01 23:17:32,141 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1198 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:32,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 58 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [580 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-01 23:17:32,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3142 states. [2023-04-01 23:17:32,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3142 to 3113. [2023-04-01 23:17:32,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3042 states have (on average 1.2652859960552267) internal successors, (3849), 3063 states have internal predecessors, (3849), 20 states have call successors, (20), 20 states have call predecessors, (20), 50 states have return successors, (140), 29 states have call predecessors, (140), 19 states have call successors, (140) [2023-04-01 23:17:32,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 4009 transitions. [2023-04-01 23:17:32,220 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 4009 transitions. Word has length 205 [2023-04-01 23:17:32,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:32,221 INFO L495 AbstractCegarLoop]: Abstraction has 3113 states and 4009 transitions. [2023-04-01 23:17:32,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 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 23:17:32,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 4009 transitions. [2023-04-01 23:17:32,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2023-04-01 23:17:32,224 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:32,224 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:32,243 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 23:17:32,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:32,429 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:32,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:32,430 INFO L85 PathProgramCache]: Analyzing trace with hash -571217620, now seen corresponding path program 1 times [2023-04-01 23:17:32,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:32,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322755390] [2023-04-01 23:17:32,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:32,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:32,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-01 23:17:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:33,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-04-01 23:17:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:33,254 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 185 proven. 68 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-04-01 23:17:33,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:33,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322755390] [2023-04-01 23:17:33,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322755390] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:17:33,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402802983] [2023-04-01 23:17:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:33,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:33,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:33,274 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 23:17:33,304 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 23:17:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:33,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 23:17:33,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:17:33,458 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-04-01 23:17:33,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 23:17:33,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402802983] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:17:33,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 23:17:33,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-04-01 23:17:33,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568673820] [2023-04-01 23:17:33,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:17:33,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 23:17:33,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:33,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 23:17:33,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-01 23:17:33,465 INFO L87 Difference]: Start difference. First operand 3113 states and 4009 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 23:17:34,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:34,334 INFO L93 Difference]: Finished difference Result 6220 states and 8017 transitions. [2023-04-01 23:17:34,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 23:17:34,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 333 [2023-04-01 23:17:34,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:34,346 INFO L225 Difference]: With dead ends: 6220 [2023-04-01 23:17:34,346 INFO L226 Difference]: Without dead ends: 3113 [2023-04-01 23:17:34,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-01 23:17:34,352 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 321 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:34,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 578 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 23:17:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2023-04-01 23:17:34,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 3113. [2023-04-01 23:17:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3042 states have (on average 1.2333990795529257) internal successors, (3752), 3063 states have internal predecessors, (3752), 20 states have call successors, (20), 20 states have call predecessors, (20), 50 states have return successors, (126), 29 states have call predecessors, (126), 19 states have call successors, (126) [2023-04-01 23:17:34,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 3898 transitions. [2023-04-01 23:17:34,414 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 3898 transitions. Word has length 333 [2023-04-01 23:17:34,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:34,415 INFO L495 AbstractCegarLoop]: Abstraction has 3113 states and 3898 transitions. [2023-04-01 23:17:34,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 23:17:34,415 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 3898 transitions. [2023-04-01 23:17:34,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-04-01 23:17:34,419 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:34,419 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 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 23:17:34,427 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 23:17:34,625 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 23:17:34,625 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:34,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:34,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1146256011, now seen corresponding path program 1 times [2023-04-01 23:17:34,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:34,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600160750] [2023-04-01 23:17:34,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:34,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:34,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-01 23:17:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 23:17:35,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:35,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600160750] [2023-04-01 23:17:35,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600160750] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:17:35,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619409798] [2023-04-01 23:17:35,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:35,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:35,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:35,090 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 23:17:35,093 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 23:17:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:35,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 23:17:35,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:17:35,421 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:17:35,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:17:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 23:17:35,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619409798] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 23:17:35,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 23:17:35,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-04-01 23:17:35,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907061229] [2023-04-01 23:17:35,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 23:17:35,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 23:17:35,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:35,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 23:17:35,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-04-01 23:17:35,900 INFO L87 Difference]: Start difference. First operand 3113 states and 3898 transitions. Second operand has 11 states, 11 states have (on average 72.0) internal successors, (792), 9 states have internal predecessors, (792), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-04-01 23:17:38,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:38,943 INFO L93 Difference]: Finished difference Result 8785 states and 11473 transitions. [2023-04-01 23:17:38,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-01 23:17:38,945 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 72.0) internal successors, (792), 9 states have internal predecessors, (792), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 358 [2023-04-01 23:17:38,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:38,961 INFO L225 Difference]: With dead ends: 8785 [2023-04-01 23:17:38,961 INFO L226 Difference]: Without dead ends: 5678 [2023-04-01 23:17:38,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 722 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2023-04-01 23:17:38,967 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 1806 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 4920 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 5550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 4920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:38,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 142 Invalid, 5550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 4920 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-01 23:17:38,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5678 states. [2023-04-01 23:17:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5678 to 5585. [2023-04-01 23:17:39,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5585 states, 5436 states have (on average 1.1559970566593083) internal successors, (6284), 5495 states have internal predecessors, (6284), 35 states have call successors, (35), 34 states have call predecessors, (35), 113 states have return successors, (282), 55 states have call predecessors, (282), 34 states have call successors, (282) [2023-04-01 23:17:39,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5585 states to 5585 states and 6601 transitions. [2023-04-01 23:17:39,061 INFO L78 Accepts]: Start accepts. Automaton has 5585 states and 6601 transitions. Word has length 358 [2023-04-01 23:17:39,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:39,061 INFO L495 AbstractCegarLoop]: Abstraction has 5585 states and 6601 transitions. [2023-04-01 23:17:39,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.0) internal successors, (792), 9 states have internal predecessors, (792), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-04-01 23:17:39,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5585 states and 6601 transitions. [2023-04-01 23:17:39,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2023-04-01 23:17:39,068 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:39,069 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 23:17:39,089 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 23:17:39,274 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 23:17:39,274 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:39,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:39,274 INFO L85 PathProgramCache]: Analyzing trace with hash 239707284, now seen corresponding path program 1 times [2023-04-01 23:17:39,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:39,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165942640] [2023-04-01 23:17:39,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:39,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:39,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:39,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-04-01 23:17:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 48 proven. 8 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2023-04-01 23:17:39,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:39,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165942640] [2023-04-01 23:17:39,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165942640] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:17:39,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428119698] [2023-04-01 23:17:39,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:39,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:39,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:39,917 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 23:17:39,972 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 23:17:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:40,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 23:17:40,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:17:40,123 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-04-01 23:17:40,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 23:17:40,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428119698] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:17:40,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 23:17:40,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-04-01 23:17:40,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271065692] [2023-04-01 23:17:40,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:17:40,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 23:17:40,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:40,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 23:17:40,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 23:17:40,125 INFO L87 Difference]: Start difference. First operand 5585 states and 6601 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 23:17:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:40,951 INFO L93 Difference]: Finished difference Result 7611 states and 8831 transitions. [2023-04-01 23:17:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 23:17:40,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 497 [2023-04-01 23:17:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:40,970 INFO L225 Difference]: With dead ends: 7611 [2023-04-01 23:17:40,971 INFO L226 Difference]: Without dead ends: 7609 [2023-04-01 23:17:40,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 23:17:40,989 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 334 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:40,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 184 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 23:17:40,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7609 states. [2023-04-01 23:17:41,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7609 to 6261. [2023-04-01 23:17:41,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6261 states, 6103 states have (on average 1.1477961658200886) internal successors, (7005), 6163 states have internal predecessors, (7005), 39 states have call successors, (39), 38 states have call predecessors, (39), 118 states have return successors, (307), 59 states have call predecessors, (307), 38 states have call successors, (307) [2023-04-01 23:17:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 7351 transitions. [2023-04-01 23:17:41,086 INFO L78 Accepts]: Start accepts. Automaton has 6261 states and 7351 transitions. Word has length 497 [2023-04-01 23:17:41,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:41,087 INFO L495 AbstractCegarLoop]: Abstraction has 6261 states and 7351 transitions. [2023-04-01 23:17:41,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 23:17:41,087 INFO L276 IsEmpty]: Start isEmpty. Operand 6261 states and 7351 transitions. [2023-04-01 23:17:41,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2023-04-01 23:17:41,099 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:41,099 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:41,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-04-01 23:17:41,304 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 23:17:41,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:41,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:41,304 INFO L85 PathProgramCache]: Analyzing trace with hash 187343460, now seen corresponding path program 1 times [2023-04-01 23:17:41,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:41,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253301238] [2023-04-01 23:17:41,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:41,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:41,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-04-01 23:17:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:41,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-04-01 23:17:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:41,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2023-04-01 23:17:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-04-01 23:17:41,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:41,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253301238] [2023-04-01 23:17:41,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253301238] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:17:41,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674618236] [2023-04-01 23:17:41,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:41,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:41,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:41,827 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 23:17:41,848 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 23:17:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:42,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 23:17:42,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:17:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 417 proven. 2 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-04-01 23:17:42,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:17:42,464 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 417 proven. 2 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-04-01 23:17:42,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674618236] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 23:17:42,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 23:17:42,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-04-01 23:17:42,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205050529] [2023-04-01 23:17:42,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 23:17:42,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 23:17:42,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:42,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 23:17:42,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-01 23:17:42,467 INFO L87 Difference]: Start difference. First operand 6261 states and 7351 transitions. Second operand has 11 states, 11 states have (on average 56.72727272727273) internal successors, (624), 9 states have internal predecessors, (624), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 23:17:46,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:46,355 INFO L93 Difference]: Finished difference Result 16316 states and 19420 transitions. [2023-04-01 23:17:46,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-04-01 23:17:46,373 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 56.72727272727273) internal successors, (624), 9 states have internal predecessors, (624), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 613 [2023-04-01 23:17:46,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:46,393 INFO L225 Difference]: With dead ends: 16316 [2023-04-01 23:17:46,393 INFO L226 Difference]: Without dead ends: 7949 [2023-04-01 23:17:46,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1293 GetRequests, 1255 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=293, Invalid=1113, Unknown=0, NotChecked=0, Total=1406 [2023-04-01 23:17:46,407 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 1546 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 6830 mSolverCounterSat, 1070 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 7900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1070 IncrementalHoareTripleChecker+Valid, 6830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:46,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 196 Invalid, 7900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1070 Valid, 6830 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-04-01 23:17:46,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7949 states. [2023-04-01 23:17:46,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7949 to 7921. [2023-04-01 23:17:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7921 states, 7751 states have (on average 1.0323829183331183) internal successors, (8002), 7812 states have internal predecessors, (8002), 49 states have call successors, (49), 48 states have call predecessors, (49), 120 states have return successors, (254), 60 states have call predecessors, (254), 48 states have call successors, (254) [2023-04-01 23:17:46,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7921 states to 7921 states and 8305 transitions. [2023-04-01 23:17:46,584 INFO L78 Accepts]: Start accepts. Automaton has 7921 states and 8305 transitions. Word has length 613 [2023-04-01 23:17:46,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:46,585 INFO L495 AbstractCegarLoop]: Abstraction has 7921 states and 8305 transitions. [2023-04-01 23:17:46,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 56.72727272727273) internal successors, (624), 9 states have internal predecessors, (624), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 23:17:46,585 INFO L276 IsEmpty]: Start isEmpty. Operand 7921 states and 8305 transitions. [2023-04-01 23:17:46,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2023-04-01 23:17:46,602 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:46,602 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:46,624 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 23:17:46,807 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 23:17:46,808 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:46,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:46,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1193744053, now seen corresponding path program 1 times [2023-04-01 23:17:46,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:46,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825954262] [2023-04-01 23:17:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:46,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:47,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:47,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-04-01 23:17:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:47,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2023-04-01 23:17:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:47,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2023-04-01 23:17:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1447 backedges. 809 proven. 2 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2023-04-01 23:17:47,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:47,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825954262] [2023-04-01 23:17:47,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825954262] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:17:47,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111376303] [2023-04-01 23:17:47,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:47,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:47,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:47,550 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 23:17:47,552 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 23:17:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:47,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 23:17:47,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:17:48,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1447 backedges. 812 proven. 2 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2023-04-01 23:17:48,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:17:48,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1447 backedges. 812 proven. 2 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2023-04-01 23:17:48,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111376303] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 23:17:48,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 23:17:48,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-04-01 23:17:48,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200721098] [2023-04-01 23:17:48,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 23:17:48,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 23:17:48,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:48,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 23:17:48,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-04-01 23:17:48,671 INFO L87 Difference]: Start difference. First operand 7921 states and 8305 transitions. Second operand has 11 states, 11 states have (on average 96.0) internal successors, (1056), 9 states have internal predecessors, (1056), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 23:17:51,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:51,508 INFO L93 Difference]: Finished difference Result 18920 states and 19927 transitions. [2023-04-01 23:17:51,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-01 23:17:51,508 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 96.0) internal successors, (1056), 9 states have internal predecessors, (1056), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 1004 [2023-04-01 23:17:51,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:51,526 INFO L225 Difference]: With dead ends: 18920 [2023-04-01 23:17:51,526 INFO L226 Difference]: Without dead ends: 9971 [2023-04-01 23:17:51,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2049 GetRequests, 2023 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2023-04-01 23:17:51,537 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 1966 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 4883 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 5137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 4883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:51,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 159 Invalid, 5137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 4883 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-04-01 23:17:51,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9971 states. [2023-04-01 23:17:51,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9971 to 8589. [2023-04-01 23:17:51,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8589 states, 8413 states have (on average 1.0257934149530488) internal successors, (8630), 8474 states have internal predecessors, (8630), 53 states have call successors, (53), 52 states have call predecessors, (53), 122 states have return successors, (232), 62 states have call predecessors, (232), 52 states have call successors, (232) [2023-04-01 23:17:51,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8589 states to 8589 states and 8915 transitions. [2023-04-01 23:17:51,636 INFO L78 Accepts]: Start accepts. Automaton has 8589 states and 8915 transitions. Word has length 1004 [2023-04-01 23:17:51,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:51,637 INFO L495 AbstractCegarLoop]: Abstraction has 8589 states and 8915 transitions. [2023-04-01 23:17:51,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.0) internal successors, (1056), 9 states have internal predecessors, (1056), 4 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 23:17:51,637 INFO L276 IsEmpty]: Start isEmpty. Operand 8589 states and 8915 transitions. [2023-04-01 23:17:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1045 [2023-04-01 23:17:51,651 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:51,652 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 23:17:51,658 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 23:17:51,858 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 23:17:51,858 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:51,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:51,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1086544259, now seen corresponding path program 1 times [2023-04-01 23:17:51,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:51,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961196353] [2023-04-01 23:17:51,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:51,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-04-01 23:17:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-04-01 23:17:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2023-04-01 23:17:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 612 [2023-04-01 23:17:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2023-04-01 23:17:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-04-01 23:17:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1916 backedges. 404 proven. 389 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2023-04-01 23:17:52,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:52,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961196353] [2023-04-01 23:17:52,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961196353] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:17:52,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118554653] [2023-04-01 23:17:52,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:52,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:52,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:52,671 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 23:17:52,673 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 23:17:52,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:52,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 23:17:52,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:17:53,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1916 backedges. 737 proven. 0 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2023-04-01 23:17:53,506 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 23:17:53,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118554653] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:17:53,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 23:17:53,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-04-01 23:17:53,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339701736] [2023-04-01 23:17:53,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:17:53,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 23:17:53,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:53,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 23:17:53,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-01 23:17:53,509 INFO L87 Difference]: Start difference. First operand 8589 states and 8915 transitions. Second operand has 5 states, 5 states have (on average 109.2) internal successors, (546), 4 states have internal predecessors, (546), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-01 23:17:54,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:54,488 INFO L93 Difference]: Finished difference Result 17862 states and 18584 transitions. [2023-04-01 23:17:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 23:17:54,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 109.2) internal successors, (546), 4 states have internal predecessors, (546), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 1044 [2023-04-01 23:17:54,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:54,503 INFO L225 Difference]: With dead ends: 17862 [2023-04-01 23:17:54,503 INFO L226 Difference]: Without dead ends: 9620 [2023-04-01 23:17:54,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 1056 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-04-01 23:17:54,513 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 524 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:54,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 84 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 23:17:54,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9620 states. [2023-04-01 23:17:54,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9620 to 8938. [2023-04-01 23:17:54,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8938 states, 8751 states have (on average 1.025825619929151) internal successors, (8977), 8820 states have internal predecessors, (8977), 54 states have call successors, (54), 54 states have call predecessors, (54), 132 states have return successors, (255), 63 states have call predecessors, (255), 53 states have call successors, (255) [2023-04-01 23:17:54,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8938 states to 8938 states and 9286 transitions. [2023-04-01 23:17:54,616 INFO L78 Accepts]: Start accepts. Automaton has 8938 states and 9286 transitions. Word has length 1044 [2023-04-01 23:17:54,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:54,616 INFO L495 AbstractCegarLoop]: Abstraction has 8938 states and 9286 transitions. [2023-04-01 23:17:54,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.2) internal successors, (546), 4 states have internal predecessors, (546), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-01 23:17:54,616 INFO L276 IsEmpty]: Start isEmpty. Operand 8938 states and 9286 transitions. [2023-04-01 23:17:54,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1181 [2023-04-01 23:17:54,633 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:54,633 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-01 23:17:54,639 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 23:17:54,839 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 23:17:54,839 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:54,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:54,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1092268691, now seen corresponding path program 1 times [2023-04-01 23:17:54,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:54,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974698417] [2023-04-01 23:17:54,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:54,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:56,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-01 23:17:56,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2023-04-01 23:17:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2023-04-01 23:17:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2023-04-01 23:17:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2023-04-01 23:17:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 858 [2023-04-01 23:17:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-04-01 23:17:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2819 backedges. 1037 proven. 18 refuted. 0 times theorem prover too weak. 1764 trivial. 0 not checked. [2023-04-01 23:17:56,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:56,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974698417] [2023-04-01 23:17:56,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974698417] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:17:56,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479923529] [2023-04-01 23:17:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:56,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:56,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:56,695 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 23:17:56,724 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 23:17:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:56,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 1601 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-01 23:17:56,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:17:57,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2819 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 2197 trivial. 0 not checked. [2023-04-01 23:17:57,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 23:17:57,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479923529] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 23:17:57,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 23:17:57,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-04-01 23:17:57,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136205281] [2023-04-01 23:17:57,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 23:17:57,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 23:17:57,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:17:57,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 23:17:57,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-01 23:17:57,104 INFO L87 Difference]: Start difference. First operand 8938 states and 9286 transitions. Second operand has 5 states, 5 states have (on average 79.6) internal successors, (398), 4 states have internal predecessors, (398), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-01 23:17:58,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:17:58,132 INFO L93 Difference]: Finished difference Result 25007 states and 26109 transitions. [2023-04-01 23:17:58,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 23:17:58,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 79.6) internal successors, (398), 4 states have internal predecessors, (398), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 1180 [2023-04-01 23:17:58,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:17:58,168 INFO L225 Difference]: With dead ends: 25007 [2023-04-01 23:17:58,168 INFO L226 Difference]: Without dead ends: 16075 [2023-04-01 23:17:58,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1208 GetRequests, 1196 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-04-01 23:17:58,184 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 838 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 23:17:58,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 70 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 23:17:58,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16075 states. [2023-04-01 23:17:58,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16075 to 14715. [2023-04-01 23:17:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14715 states, 14437 states have (on average 1.0256978596661357) internal successors, (14808), 14527 states have internal predecessors, (14808), 88 states have call successors, (88), 88 states have call predecessors, (88), 189 states have return successors, (462), 99 states have call predecessors, (462), 87 states have call successors, (462) [2023-04-01 23:17:58,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14715 states to 14715 states and 15358 transitions. [2023-04-01 23:17:58,433 INFO L78 Accepts]: Start accepts. Automaton has 14715 states and 15358 transitions. Word has length 1180 [2023-04-01 23:17:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:17:58,433 INFO L495 AbstractCegarLoop]: Abstraction has 14715 states and 15358 transitions. [2023-04-01 23:17:58,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.6) internal successors, (398), 4 states have internal predecessors, (398), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-04-01 23:17:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand 14715 states and 15358 transitions. [2023-04-01 23:17:58,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1405 [2023-04-01 23:17:58,458 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:17:58,458 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:58,477 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 23:17:58,665 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 23:17:58,665 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:17:58,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:17:58,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1821390601, now seen corresponding path program 1 times [2023-04-01 23:17:58,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:17:58,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085217824] [2023-04-01 23:17:58,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:58,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:17:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:17:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:17:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-04-01 23:17:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-04-01 23:17:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2023-04-01 23:17:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2023-04-01 23:17:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2023-04-01 23:17:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 972 [2023-04-01 23:17:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1082 [2023-04-01 23:17:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-04-01 23:17:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3672 backedges. 689 proven. 333 refuted. 0 times theorem prover too weak. 2650 trivial. 0 not checked. [2023-04-01 23:17:59,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:17:59,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085217824] [2023-04-01 23:17:59,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085217824] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:17:59,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062293919] [2023-04-01 23:17:59,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:17:59,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:17:59,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:17:59,488 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 23:17:59,489 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 23:17:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:17:59,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 23:17:59,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:17:59,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3672 backedges. 2495 proven. 2 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2023-04-01 23:17:59,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:18:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3672 backedges. 693 proven. 336 refuted. 0 times theorem prover too weak. 2643 trivial. 0 not checked. [2023-04-01 23:18:00,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062293919] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 23:18:00,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 23:18:00,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2023-04-01 23:18:00,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975918225] [2023-04-01 23:18:00,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 23:18:00,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 23:18:00,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:18:00,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 23:18:00,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-04-01 23:18:00,244 INFO L87 Difference]: Start difference. First operand 14715 states and 15358 transitions. Second operand has 11 states, 11 states have (on average 85.0909090909091) internal successors, (936), 9 states have internal predecessors, (936), 4 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-01 23:18:02,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:18:02,383 INFO L93 Difference]: Finished difference Result 29777 states and 31088 transitions. [2023-04-01 23:18:02,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-01 23:18:02,383 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 85.0909090909091) internal successors, (936), 9 states have internal predecessors, (936), 4 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 1404 [2023-04-01 23:18:02,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:18:02,412 INFO L225 Difference]: With dead ends: 29777 [2023-04-01 23:18:02,412 INFO L226 Difference]: Without dead ends: 15405 [2023-04-01 23:18:02,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2848 GetRequests, 2829 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2023-04-01 23:18:02,431 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2508 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2508 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 3427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-01 23:18:02,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2508 Valid, 120 Invalid, 3427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 3232 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-01 23:18:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15405 states. [2023-04-01 23:18:02,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15405 to 14713. [2023-04-01 23:18:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14713 states, 14436 states have (on average 1.021681906345248) internal successors, (14749), 14525 states have internal predecessors, (14749), 88 states have call successors, (88), 88 states have call predecessors, (88), 188 states have return successors, (386), 99 states have call predecessors, (386), 87 states have call successors, (386) [2023-04-01 23:18:02,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14713 states to 14713 states and 15223 transitions. [2023-04-01 23:18:02,608 INFO L78 Accepts]: Start accepts. Automaton has 14713 states and 15223 transitions. Word has length 1404 [2023-04-01 23:18:02,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:18:02,608 INFO L495 AbstractCegarLoop]: Abstraction has 14713 states and 15223 transitions. [2023-04-01 23:18:02,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 85.0909090909091) internal successors, (936), 9 states have internal predecessors, (936), 4 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-01 23:18:02,609 INFO L276 IsEmpty]: Start isEmpty. Operand 14713 states and 15223 transitions. [2023-04-01 23:18:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1406 [2023-04-01 23:18:02,632 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:18:02,633 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:02,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-04-01 23:18:02,839 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 23:18:02,840 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:18:02,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:18:02,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1188995224, now seen corresponding path program 1 times [2023-04-01 23:18:02,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:18:02,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287698648] [2023-04-01 23:18:02,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:18:02,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:18:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:18:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:18:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-04-01 23:18:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-04-01 23:18:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2023-04-01 23:18:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2023-04-01 23:18:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2023-04-01 23:18:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2023-04-01 23:18:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1083 [2023-04-01 23:18:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:04,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-04-01 23:18:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3679 backedges. 1305 proven. 23 refuted. 0 times theorem prover too weak. 2351 trivial. 0 not checked. [2023-04-01 23:18:05,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:18:05,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287698648] [2023-04-01 23:18:05,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287698648] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:18:05,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700998325] [2023-04-01 23:18:05,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:18:05,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:18:05,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:18:05,022 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 23:18:05,024 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 23:18:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:05,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 1858 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-01 23:18:05,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:18:05,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3679 backedges. 2499 proven. 2 refuted. 0 times theorem prover too weak. 1178 trivial. 0 not checked. [2023-04-01 23:18:05,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:18:06,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3679 backedges. 694 proven. 336 refuted. 0 times theorem prover too weak. 2649 trivial. 0 not checked. [2023-04-01 23:18:06,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700998325] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 23:18:06,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 23:18:06,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 15 [2023-04-01 23:18:06,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916490989] [2023-04-01 23:18:06,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 23:18:06,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-01 23:18:06,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:18:06,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-01 23:18:06,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-04-01 23:18:06,352 INFO L87 Difference]: Start difference. First operand 14713 states and 15223 transitions. Second operand has 15 states, 15 states have (on average 74.93333333333334) internal successors, (1124), 13 states have internal predecessors, (1124), 7 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-04-01 23:18:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:18:11,899 INFO L93 Difference]: Finished difference Result 32503 states and 33696 transitions. [2023-04-01 23:18:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-04-01 23:18:11,900 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 74.93333333333334) internal successors, (1124), 13 states have internal predecessors, (1124), 7 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 1405 [2023-04-01 23:18:11,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:18:11,929 INFO L225 Difference]: With dead ends: 32503 [2023-04-01 23:18:11,929 INFO L226 Difference]: Without dead ends: 18133 [2023-04-01 23:18:11,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2927 GetRequests, 2865 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1151 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=558, Invalid=3348, Unknown=0, NotChecked=0, Total=3906 [2023-04-01 23:18:11,941 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 5006 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 11177 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 11540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 11177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-01 23:18:11,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 498 Invalid, 11540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 11177 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-01 23:18:11,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18133 states. [2023-04-01 23:18:12,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18133 to 17435. [2023-04-01 23:18:12,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17435 states, 17113 states have (on average 1.0199848068719686) internal successors, (17455), 17215 states have internal predecessors, (17455), 104 states have call successors, (104), 104 states have call predecessors, (104), 217 states have return successors, (447), 115 states have call predecessors, (447), 103 states have call successors, (447) [2023-04-01 23:18:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17435 states to 17435 states and 18006 transitions. [2023-04-01 23:18:12,166 INFO L78 Accepts]: Start accepts. Automaton has 17435 states and 18006 transitions. Word has length 1405 [2023-04-01 23:18:12,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:18:12,166 INFO L495 AbstractCegarLoop]: Abstraction has 17435 states and 18006 transitions. [2023-04-01 23:18:12,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 74.93333333333334) internal successors, (1124), 13 states have internal predecessors, (1124), 7 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-04-01 23:18:12,167 INFO L276 IsEmpty]: Start isEmpty. Operand 17435 states and 18006 transitions. [2023-04-01 23:18:12,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1487 [2023-04-01 23:18:12,203 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:18:12,203 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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:12,215 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 23:18:12,410 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 23:18:12,410 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:18:12,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:18:12,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1850803651, now seen corresponding path program 1 times [2023-04-01 23:18:12,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:18:12,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922824578] [2023-04-01 23:18:12,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:18:12,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:18:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:13,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:18:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:13,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:18:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:13,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-04-01 23:18:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2023-04-01 23:18:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:13,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2023-04-01 23:18:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:13,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2023-04-01 23:18:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:14,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2023-04-01 23:18:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:14,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1077 [2023-04-01 23:18:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1331 [2023-04-01 23:18:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:14,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4099 backedges. 997 proven. 458 refuted. 0 times theorem prover too weak. 2644 trivial. 0 not checked. [2023-04-01 23:18:14,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:18:14,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922824578] [2023-04-01 23:18:14,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922824578] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:18:14,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189093757] [2023-04-01 23:18:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:18:14,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:18:14,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:18:14,242 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 23:18:14,243 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 23:18:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:14,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-01 23:18:14,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:18:15,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4099 backedges. 2025 proven. 2 refuted. 0 times theorem prover too weak. 2072 trivial. 0 not checked. [2023-04-01 23:18:15,324 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:18:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4099 backedges. 249 proven. 1928 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2023-04-01 23:18:17,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189093757] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 23:18:17,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 23:18:17,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2023-04-01 23:18:17,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10271461] [2023-04-01 23:18:17,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 23:18:17,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-01 23:18:17,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:18:17,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-01 23:18:17,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2023-04-01 23:18:17,973 INFO L87 Difference]: Start difference. First operand 17435 states and 18006 transitions. Second operand has 20 states, 20 states have (on average 81.6) internal successors, (1632), 18 states have internal predecessors, (1632), 8 states have call successors, (15), 11 states have call predecessors, (15), 10 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-04-01 23:18:23,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:18:23,190 INFO L93 Difference]: Finished difference Result 37644 states and 38968 transitions. [2023-04-01 23:18:23,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-04-01 23:18:23,191 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 81.6) internal successors, (1632), 18 states have internal predecessors, (1632), 8 states have call successors, (15), 11 states have call predecessors, (15), 10 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 1486 [2023-04-01 23:18:23,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:18:23,224 INFO L225 Difference]: With dead ends: 37644 [2023-04-01 23:18:23,224 INFO L226 Difference]: Without dead ends: 20552 [2023-04-01 23:18:23,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3108 GetRequests, 3028 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2099 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=946, Invalid=5534, Unknown=0, NotChecked=0, Total=6480 [2023-04-01 23:18:23,235 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 17252 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 7306 mSolverCounterSat, 938 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17252 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 8244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 938 IncrementalHoareTripleChecker+Valid, 7306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-01 23:18:23,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17252 Valid, 325 Invalid, 8244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [938 Valid, 7306 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-01 23:18:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20552 states. [2023-04-01 23:18:23,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20552 to 18793. [2023-04-01 23:18:23,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18793 states, 18450 states have (on average 1.0161517615176152) internal successors, (18748), 18557 states have internal predecessors, (18748), 112 states have call successors, (112), 112 states have call predecessors, (112), 230 states have return successors, (404), 123 states have call predecessors, (404), 111 states have call successors, (404) [2023-04-01 23:18:23,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18793 states to 18793 states and 19264 transitions. [2023-04-01 23:18:23,464 INFO L78 Accepts]: Start accepts. Automaton has 18793 states and 19264 transitions. Word has length 1486 [2023-04-01 23:18:23,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:18:23,465 INFO L495 AbstractCegarLoop]: Abstraction has 18793 states and 19264 transitions. [2023-04-01 23:18:23,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 81.6) internal successors, (1632), 18 states have internal predecessors, (1632), 8 states have call successors, (15), 11 states have call predecessors, (15), 10 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-04-01 23:18:23,465 INFO L276 IsEmpty]: Start isEmpty. Operand 18793 states and 19264 transitions. [2023-04-01 23:18:23,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1869 [2023-04-01 23:18:23,496 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:18:23,497 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:23,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-04-01 23:18:23,704 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 23:18:23,704 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:18:23,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:18:23,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1603282223, now seen corresponding path program 1 times [2023-04-01 23:18:23,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:18:23,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874676951] [2023-04-01 23:18:23,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:18:23,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:18:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:28,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:18:28,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:28,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:18:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:28,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-04-01 23:18:28,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:28,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2023-04-01 23:18:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:28,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2023-04-01 23:18:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:28,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2023-04-01 23:18:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:28,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2023-04-01 23:18:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:28,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2023-04-01 23:18:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:28,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1175 [2023-04-01 23:18:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:29,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1459 [2023-04-01 23:18:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:29,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1713 [2023-04-01 23:18:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:29,572 INFO L134 CoverageAnalysis]: Checked inductivity of 6698 backedges. 1529 proven. 3089 refuted. 0 times theorem prover too weak. 2080 trivial. 0 not checked. [2023-04-01 23:18:29,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:18:29,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874676951] [2023-04-01 23:18:29,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874676951] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:18:29,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568836344] [2023-04-01 23:18:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:18:29,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:18:29,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:18:29,574 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 23:18:29,575 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 23:18:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:29,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 2376 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 23:18:29,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:18:31,083 INFO L134 CoverageAnalysis]: Checked inductivity of 6698 backedges. 3936 proven. 10 refuted. 0 times theorem prover too weak. 2752 trivial. 0 not checked. [2023-04-01 23:18:31,084 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:18:34,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6698 backedges. 1752 proven. 128 refuted. 0 times theorem prover too weak. 4818 trivial. 0 not checked. [2023-04-01 23:18:34,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568836344] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 23:18:34,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 23:18:34,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8, 5] total 25 [2023-04-01 23:18:34,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153796175] [2023-04-01 23:18:34,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 23:18:34,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-04-01 23:18:34,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:18:34,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-04-01 23:18:34,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2023-04-01 23:18:34,347 INFO L87 Difference]: Start difference. First operand 18793 states and 19264 transitions. Second operand has 25 states, 25 states have (on average 74.56) internal successors, (1864), 23 states have internal predecessors, (1864), 9 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2023-04-01 23:18:47,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:18:47,106 INFO L93 Difference]: Finished difference Result 41704 states and 42798 transitions. [2023-04-01 23:18:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-04-01 23:18:47,106 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 74.56) internal successors, (1864), 23 states have internal predecessors, (1864), 9 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) Word has length 1868 [2023-04-01 23:18:47,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:18:47,137 INFO L225 Difference]: With dead ends: 41704 [2023-04-01 23:18:47,137 INFO L226 Difference]: Without dead ends: 23256 [2023-04-01 23:18:47,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3930 GetRequests, 3816 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4437 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1511, Invalid=11599, Unknown=0, NotChecked=0, Total=13110 [2023-04-01 23:18:47,157 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 18865 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 18095 mSolverCounterSat, 738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18871 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 18833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 18095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-04-01 23:18:47,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18871 Valid, 553 Invalid, 18833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [738 Valid, 18095 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2023-04-01 23:18:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23256 states. [2023-04-01 23:18:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23256 to 20829. [2023-04-01 23:18:47,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20829 states, 20456 states have (on average 1.0142745404771216) internal successors, (20748), 20567 states have internal predecessors, (20748), 124 states have call successors, (124), 124 states have call predecessors, (124), 248 states have return successors, (406), 137 states have call predecessors, (406), 123 states have call successors, (406) [2023-04-01 23:18:47,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20829 states to 20829 states and 21278 transitions. [2023-04-01 23:18:47,466 INFO L78 Accepts]: Start accepts. Automaton has 20829 states and 21278 transitions. Word has length 1868 [2023-04-01 23:18:47,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:18:47,467 INFO L495 AbstractCegarLoop]: Abstraction has 20829 states and 21278 transitions. [2023-04-01 23:18:47,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 74.56) internal successors, (1864), 23 states have internal predecessors, (1864), 9 states have call successors, (15), 8 states have call predecessors, (15), 11 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2023-04-01 23:18:47,467 INFO L276 IsEmpty]: Start isEmpty. Operand 20829 states and 21278 transitions. [2023-04-01 23:18:47,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2227 [2023-04-01 23:18:47,505 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:18:47,506 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, 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, 12, 12, 12, 12, 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, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 23:18:47,527 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 23:18:47,712 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 23:18:47,712 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:18:47,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:18:47,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1610130079, now seen corresponding path program 1 times [2023-04-01 23:18:47,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:18:47,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578049148] [2023-04-01 23:18:47,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:18:47,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:18:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:49,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:18:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:49,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:18:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:49,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-04-01 23:18:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:49,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2023-04-01 23:18:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:49,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2023-04-01 23:18:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:49,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 836 [2023-04-01 23:18:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:49,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 951 [2023-04-01 23:18:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:50,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-04-01 23:18:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:50,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1278 [2023-04-01 23:18:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:50,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1352 [2023-04-01 23:18:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:50,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1462 [2023-04-01 23:18:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:50,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1746 [2023-04-01 23:18:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:50,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1817 [2023-04-01 23:18:50,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2071 [2023-04-01 23:18:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:50,440 INFO L134 CoverageAnalysis]: Checked inductivity of 9055 backedges. 1851 proven. 470 refuted. 0 times theorem prover too weak. 6734 trivial. 0 not checked. [2023-04-01 23:18:50,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:18:50,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578049148] [2023-04-01 23:18:50,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578049148] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:18:50,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745289085] [2023-04-01 23:18:50,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:18:50,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:18:50,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:18:50,441 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 23:18:50,443 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 23:18:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:18:50,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 2827 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-01 23:18:50,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:18:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 9055 backedges. 5269 proven. 2 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-04-01 23:18:51,240 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 23:18:52,467 INFO L134 CoverageAnalysis]: Checked inductivity of 9055 backedges. 1198 proven. 395 refuted. 0 times theorem prover too weak. 7462 trivial. 0 not checked. [2023-04-01 23:18:52,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745289085] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 23:18:52,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 23:18:52,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2023-04-01 23:18:52,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432009823] [2023-04-01 23:18:52,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 23:18:52,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-01 23:18:52,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 23:18:52,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-01 23:18:52,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-04-01 23:18:52,472 INFO L87 Difference]: Start difference. First operand 20829 states and 21278 transitions. Second operand has 14 states, 14 states have (on average 80.92857142857143) internal successors, (1133), 12 states have internal predecessors, (1133), 6 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-04-01 23:18:57,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 23:18:57,649 INFO L93 Difference]: Finished difference Result 43742 states and 44742 transitions. [2023-04-01 23:18:57,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-04-01 23:18:57,649 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 80.92857142857143) internal successors, (1133), 12 states have internal predecessors, (1133), 6 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 2226 [2023-04-01 23:18:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 23:18:57,695 INFO L225 Difference]: With dead ends: 43742 [2023-04-01 23:18:57,696 INFO L226 Difference]: Without dead ends: 23258 [2023-04-01 23:18:57,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4568 GetRequests, 4510 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1001 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=558, Invalid=2864, Unknown=0, NotChecked=0, Total=3422 [2023-04-01 23:18:57,715 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 7693 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 7792 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7700 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 8460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 7792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-01 23:18:57,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7700 Valid, 199 Invalid, 8460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 7792 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-01 23:18:57,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23258 states. [2023-04-01 23:18:57,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23258 to 21522. [2023-04-01 23:18:58,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21522 states, 21132 states have (on average 1.013770584894946) internal successors, (21423), 21251 states have internal predecessors, (21423), 128 states have call successors, (128), 128 states have call predecessors, (128), 261 states have return successors, (409), 142 states have call predecessors, (409), 127 states have call successors, (409) [2023-04-01 23:18:58,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21522 states to 21522 states and 21960 transitions. [2023-04-01 23:18:58,027 INFO L78 Accepts]: Start accepts. Automaton has 21522 states and 21960 transitions. Word has length 2226 [2023-04-01 23:18:58,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 23:18:58,028 INFO L495 AbstractCegarLoop]: Abstraction has 21522 states and 21960 transitions. [2023-04-01 23:18:58,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 80.92857142857143) internal successors, (1133), 12 states have internal predecessors, (1133), 6 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-04-01 23:18:58,028 INFO L276 IsEmpty]: Start isEmpty. Operand 21522 states and 21960 transitions. [2023-04-01 23:18:58,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2358 [2023-04-01 23:18:58,071 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 23:18:58,071 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, 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, 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, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 23:18:58,093 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 23:18:58,293 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 23:18:58,294 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 23:18:58,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 23:18:58,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1767291708, now seen corresponding path program 1 times [2023-04-01 23:18:58,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 23:18:58,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409309800] [2023-04-01 23:18:58,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:18:58,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 23:18:58,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:00,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 23:19:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 23:19:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-04-01 23:19:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:00,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2023-04-01 23:19:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2023-04-01 23:19:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:00,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2023-04-01 23:19:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:01,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2023-04-01 23:19:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1070 [2023-04-01 23:19:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:01,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1320 [2023-04-01 23:19:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:01,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1593 [2023-04-01 23:19:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:01,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1877 [2023-04-01 23:19:01,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:01,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1948 [2023-04-01 23:19:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:01,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2202 [2023-04-01 23:19:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:01,831 INFO L134 CoverageAnalysis]: Checked inductivity of 10454 backedges. 1819 proven. 736 refuted. 0 times theorem prover too weak. 7899 trivial. 0 not checked. [2023-04-01 23:19:01,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 23:19:01,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409309800] [2023-04-01 23:19:01,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409309800] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 23:19:01,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870205818] [2023-04-01 23:19:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 23:19:01,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 23:19:01,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 23:19:01,846 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 23:19:01,871 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 23:19:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 23:19:02,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 2932 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 23:19:02,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 23:19:20,389 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:20,454 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:23,554 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-04-01 23:19:23,760 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:23,964 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:24,235 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:24,511 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:24,896 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:25,290 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:26,457 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:36,568 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:40,361 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:41,245 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:41,654 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-04-01 23:19:41,963 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:42,656 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:45,333 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-04-01 23:19:45,371 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:45,427 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:45,659 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-04-01 23:19:45,914 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-04-01 23:19:46,181 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-04-01 23:19:46,462 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-04-01 23:19:46,572 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:46,848 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:47,104 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-04-01 23:19:47,388 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:47,631 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:47,765 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:47,804 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:47,841 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:47,895 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-04-01 23:19:47,943 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:58,060 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:19:59,336 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:20:00,278 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:20:07,654 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-04-01 23:20:08,933 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts.