/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-69.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 13:29:04,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 13:29:04,435 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 13:29:04,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 13:29:04,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 13:29:04,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 13:29:04,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 13:29:04,461 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 13:29:04,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 13:29:04,464 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 13:29:04,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 13:29:04,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 13:29:04,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 13:29:04,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 13:29:04,466 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 13:29:04,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 13:29:04,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 13:29:04,467 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 13:29:04,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 13:29:04,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 13:29:04,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 13:29:04,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 13:29:04,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 13:29:04,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 13:29:04,468 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 13:29:04,468 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 13:29:04,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 13:29:04,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 13:29:04,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 13:29:04,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 13:29:04,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 13:29:04,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 13:29:04,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:29:04,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 13:29:04,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 13:29:04,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 13:29:04,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 13:29:04,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 13:29:04,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 13:29:04,471 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 13:29:04,471 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 13:29:04,471 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 13:29:04,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 13:29:04,471 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 13:29:04,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 13:29:04,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 13:29:04,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 13:29:04,677 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 13:29:04,681 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 13:29:04,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-69.i [2023-12-19 13:29:05,712 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 13:29:05,873 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 13:29:05,874 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-69.i [2023-12-19 13:29:05,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceaceb3e0/efeef795b49b4285a62f2c9440107396/FLAGfb3eeff8a [2023-12-19 13:29:05,893 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceaceb3e0/efeef795b49b4285a62f2c9440107396 [2023-12-19 13:29:05,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 13:29:05,895 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 13:29:05,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 13:29:05,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 13:29:05,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 13:29:05,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:29:05" (1/1) ... [2023-12-19 13:29:05,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f57645b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:05, skipping insertion in model container [2023-12-19 13:29:05,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:29:05" (1/1) ... [2023-12-19 13:29:05,932 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 13:29:06,034 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-69.i[915,928] [2023-12-19 13:29:06,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:29:06,071 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 13:29:06,079 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-69.i[915,928] [2023-12-19 13:29:06,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:29:06,103 INFO L206 MainTranslator]: Completed translation [2023-12-19 13:29:06,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06 WrapperNode [2023-12-19 13:29:06,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 13:29:06,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 13:29:06,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 13:29:06,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 13:29:06,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,153 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 136 [2023-12-19 13:29:06,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 13:29:06,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 13:29:06,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 13:29:06,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 13:29:06,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,164 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,173 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 13:29:06,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,173 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,194 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 13:29:06,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 13:29:06,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 13:29:06,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 13:29:06,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (1/1) ... [2023-12-19 13:29:06,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:29:06,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:29:06,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 13:29:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 13:29:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 13:29:06,278 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 13:29:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 13:29:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 13:29:06,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 13:29:06,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 13:29:06,327 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 13:29:06,328 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 13:29:06,515 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 13:29:06,548 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 13:29:06,548 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 13:29:06,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:29:06 BoogieIcfgContainer [2023-12-19 13:29:06,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 13:29:06,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 13:29:06,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 13:29:06,552 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 13:29:06,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:29:05" (1/3) ... [2023-12-19 13:29:06,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97510a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:29:06, skipping insertion in model container [2023-12-19 13:29:06,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:29:06" (2/3) ... [2023-12-19 13:29:06,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97510a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:29:06, skipping insertion in model container [2023-12-19 13:29:06,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:29:06" (3/3) ... [2023-12-19 13:29:06,555 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-69.i [2023-12-19 13:29:06,566 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 13:29:06,566 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 13:29:06,600 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 13:29:06,604 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b37c7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 13:29:06,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 13:29:06,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 13:29:06,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-19 13:29:06,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:29:06,620 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:29:06,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:29:06,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:29:06,624 INFO L85 PathProgramCache]: Analyzing trace with hash 295662813, now seen corresponding path program 1 times [2023-12-19 13:29:06,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:29:06,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497814542] [2023-12-19 13:29:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:29:06,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:29:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:29:06,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:29:06,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497814542] [2023-12-19 13:29:06,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 13:29:06,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804468284] [2023-12-19 13:29:06,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:29:06,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:29:06,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:29:06,747 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:29:06,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 13:29:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:29:06,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 13:29:06,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:29:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-12-19 13:29:06,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:29:06,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804468284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:29:06,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:29:06,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 13:29:06,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219950166] [2023-12-19 13:29:06,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:29:06,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 13:29:06,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:29:06,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 13:29:06,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 13:29:06,915 INFO L87 Difference]: Start difference. First operand has 50 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 13:29:06,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:29:06,941 INFO L93 Difference]: Finished difference Result 97 states and 168 transitions. [2023-12-19 13:29:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 13:29:06,943 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2023-12-19 13:29:06,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:29:06,947 INFO L225 Difference]: With dead ends: 97 [2023-12-19 13:29:06,947 INFO L226 Difference]: Without dead ends: 48 [2023-12-19 13:29:06,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 13:29:06,952 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:29:06,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:29:06,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-19 13:29:06,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-19 13:29:06,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 13:29:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 72 transitions. [2023-12-19 13:29:06,982 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 72 transitions. Word has length 100 [2023-12-19 13:29:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:29:06,982 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 72 transitions. [2023-12-19 13:29:06,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-19 13:29:06,983 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 72 transitions. [2023-12-19 13:29:06,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-19 13:29:06,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:29:06,985 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:29:06,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 13:29:07,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 13:29:07,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:29:07,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:29:07,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1110271001, now seen corresponding path program 1 times [2023-12-19 13:29:07,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:29:07,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673568684] [2023-12-19 13:29:07,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:29:07,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:29:07,226 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:29:07,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600002637] [2023-12-19 13:29:07,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:29:07,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:29:07,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:29:07,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:29:07,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 13:29:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:29:07,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 13:29:07,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:29:07,786 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:29:07,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:29:07,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:29:07,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673568684] [2023-12-19 13:29:07,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:29:07,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600002637] [2023-12-19 13:29:07,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600002637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:29:07,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:29:07,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 13:29:07,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515009329] [2023-12-19 13:29:07,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:29:07,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 13:29:07,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:29:07,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 13:29:07,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 13:29:07,791 INFO L87 Difference]: Start difference. First operand 48 states and 72 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:29:07,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:29:07,837 INFO L93 Difference]: Finished difference Result 95 states and 143 transitions. [2023-12-19 13:29:07,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 13:29:07,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 100 [2023-12-19 13:29:07,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:29:07,840 INFO L225 Difference]: With dead ends: 95 [2023-12-19 13:29:07,840 INFO L226 Difference]: Without dead ends: 48 [2023-12-19 13:29:07,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 13:29:07,842 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 18 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:29:07,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 157 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:29:07,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-12-19 13:29:07,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-12-19 13:29:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-19 13:29:07,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 71 transitions. [2023-12-19 13:29:07,859 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 71 transitions. Word has length 100 [2023-12-19 13:29:07,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:29:07,861 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 71 transitions. [2023-12-19 13:29:07,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:29:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 71 transitions. [2023-12-19 13:29:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-19 13:29:07,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:29:07,867 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:29:07,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 13:29:08,071 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,SelfDestructingSolverStorable1 [2023-12-19 13:29:08,072 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:29:08,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:29:08,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1344568126, now seen corresponding path program 1 times [2023-12-19 13:29:08,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:29:08,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408671960] [2023-12-19 13:29:08,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:29:08,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:29:08,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:29:08,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619965906] [2023-12-19 13:29:08,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:29:08,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:29:08,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:29:08,129 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:29:08,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 13:29:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:29:08,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-19 13:29:08,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:30:04,535 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:30:04,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:30:04,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:30:04,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408671960] [2023-12-19 13:30:04,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:30:04,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619965906] [2023-12-19 13:30:04,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619965906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:30:04,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:30:04,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 13:30:04,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72390906] [2023-12-19 13:30:04,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:30:04,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 13:30:04,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:30:04,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 13:30:04,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=48, Unknown=2, NotChecked=0, Total=72 [2023-12-19 13:30:04,537 INFO L87 Difference]: Start difference. First operand 48 states and 71 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:30:08,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:12,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:16,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:20,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:24,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:28,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:32,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:36,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:40,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:44,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:48,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:52,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:30:56,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:00,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:08,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:12,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:16,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:20,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:24,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:33,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:37,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:41,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:45,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:49,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:31:57,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:01,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:05,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:09,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:13,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:20,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:25,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:29,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:33,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:37,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:41,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:45,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:49,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:53,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:32:57,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:33:01,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:33:05,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:33:09,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:33:09,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:33:09,246 INFO L93 Difference]: Finished difference Result 101 states and 141 transitions. [2023-12-19 13:33:09,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 13:33:09,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2023-12-19 13:33:09,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:33:09,253 INFO L225 Difference]: With dead ends: 101 [2023-12-19 13:33:09,253 INFO L226 Difference]: Without dead ends: 99 [2023-12-19 13:33:09,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 52.2s TimeCoverageRelationStatistics Valid=44, Invalid=110, Unknown=2, NotChecked=0, Total=156 [2023-12-19 13:33:09,254 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 92 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 41 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 168.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 41 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 168.6s IncrementalHoareTripleChecker+Time [2023-12-19 13:33:09,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 331 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 41 Unknown, 0 Unchecked, 168.6s Time] [2023-12-19 13:33:09,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-19 13:33:09,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 72. [2023-12-19 13:33:09,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 46 states have internal predecessors, (56), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 13:33:09,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 104 transitions. [2023-12-19 13:33:09,265 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 104 transitions. Word has length 102 [2023-12-19 13:33:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:33:09,265 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 104 transitions. [2023-12-19 13:33:09,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:33:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 104 transitions. [2023-12-19 13:33:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-19 13:33:09,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:33:09,266 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:33:09,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 13:33:09,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:33:09,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:33:09,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:33:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1766834587, now seen corresponding path program 1 times [2023-12-19 13:33:09,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:33:09,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532297419] [2023-12-19 13:33:09,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:33:09,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:33:09,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:33:09,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811405629] [2023-12-19 13:33:09,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:33:09,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:33:09,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:33:09,492 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:33:09,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 13:33:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:33:09,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-19 13:33:09,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:33:17,711 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:33:29,735 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:33:41,859 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:33:45,866 WARN L854 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_step_~stepLocal_2~0#1| c_~var_1_17~0) (<= 4294967286 (mod (* (mod c_~var_1_17~0 65536) c_~var_1_11~0) 4294967296)) (= c_~var_1_13~0 c_~var_1_18~0) (= c_~var_1_16~0 c_~var_1_15~0) (= c_~var_1_17~0 c_~var_1_11~0)) is different from false [2023-12-19 13:33:53,889 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:34:05,908 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:34:17,950 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:34:21,959 WARN L854 $PredicateComparison]: unable to prove that (and (= c_~var_1_13~0 c_~var_1_12~0) (<= 4294967286 (mod (* (mod c_~var_1_17~0 65536) c_~var_1_11~0) 4294967296)) (= c_~var_1_13~0 c_~var_1_18~0) (= c_~var_1_16~0 c_~var_1_15~0) (= c_~var_1_17~0 c_~var_1_11~0)) is different from false [2023-12-19 13:34:29,972 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:34:41,995 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:34:54,034 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:35:02,057 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:35:14,074 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:35:26,172 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:35:34,199 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:35:46,245 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:35:58,287 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:36:06,295 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:36:10,320 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~var_1_17~0 65536))) (and (= c_~var_1_13~0 c_~var_1_12~0) (<= 4294967286 (mod (* .cse0 c_~var_1_11~0) 4294967296)) (= c_~var_1_13~0 c_~var_1_18~0) (= c_~var_1_16~0 c_~var_1_15~0) (= |c_ULTIMATE.start_property_#t~nondet14#1| .cse0) (= c_~var_1_17~0 c_~var_1_11~0))) is different from false [2023-12-19 13:36:18,365 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:36:26,376 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:36:38,401 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:36:43,541 WARN L293 SmtUtils]: Spent 5.14s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:36:47,544 WARN L854 $PredicateComparison]: unable to prove that (and |c_ULTIMATE.start_property_#t~short15#1| (<= 4294967286 (mod (* (mod c_~var_1_17~0 65536) c_~var_1_11~0) 4294967296)) (= c_~var_1_13~0 c_~var_1_18~0) (= c_~var_1_16~0 c_~var_1_15~0) (= c_~var_1_17~0 c_~var_1_11~0)) is different from false [2023-12-19 13:37:04,067 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:37:16,092 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:37:20,099 WARN L854 $PredicateComparison]: unable to prove that (and (exists ((v_z_1 Int) (v_y_1 Int)) (and (<= 0 v_z_1) (<= 4294967286 (mod (+ (* 65536 v_z_1 v_y_1) (* v_z_1 v_z_1)) 4294967296)) (<= v_z_1 65535))) (<= 1 |c_ULTIMATE.start___VERIFIER_assert_~cond#1|)) is different from false [2023-12-19 13:37:20,102 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:37:20,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:37:20,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:37:20,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532297419] [2023-12-19 13:37:20,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:37:20,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811405629] [2023-12-19 13:37:20,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811405629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:37:20,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:37:20,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 13:37:20,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743765275] [2023-12-19 13:37:20,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:37:20,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 13:37:20,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:37:20,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 13:37:20,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=15, Unknown=5, NotChecked=50, Total=90 [2023-12-19 13:37:20,104 INFO L87 Difference]: Start difference. First operand 72 states and 104 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:24,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:37:28,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-12-19 13:37:32,191 WARN L854 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_step_~stepLocal_2~0#1| c_~var_1_17~0) (<= 4294967286 (mod (* (mod c_~var_1_17~0 65536) c_~var_1_11~0) 4294967296)) (= c_~var_1_13~0 c_~var_1_18~0) (= c_~var_1_16~0 c_~var_1_15~0) (= (+ |c_ULTIMATE.start_step_~stepLocal_1~0#1| 10) 0) (= c_~var_1_17~0 c_~var_1_11~0)) is different from false [2023-12-19 13:37:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:37:32,280 INFO L93 Difference]: Finished difference Result 165 states and 233 transitions. [2023-12-19 13:37:32,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 13:37:32,281 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2023-12-19 13:37:32,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:37:32,282 INFO L225 Difference]: With dead ends: 165 [2023-12-19 13:37:32,282 INFO L226 Difference]: Without dead ends: 107 [2023-12-19 13:37:32,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=22, Invalid=16, Unknown=6, NotChecked=66, Total=110 [2023-12-19 13:37:32,283 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 47 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 392 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-12-19 13:37:32,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 443 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 2 Unknown, 392 Unchecked, 8.1s Time] [2023-12-19 13:37:32,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-19 13:37:32,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 73. [2023-12-19 13:37:32,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 47 states have internal predecessors, (57), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 13:37:32,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 105 transitions. [2023-12-19 13:37:32,291 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 105 transitions. Word has length 103 [2023-12-19 13:37:32,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:37:32,291 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 105 transitions. [2023-12-19 13:37:32,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:32,291 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 105 transitions. [2023-12-19 13:37:32,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-19 13:37:32,295 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:37:32,295 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:37:32,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 13:37:32,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:37:32,500 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:37:32,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:37:32,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1718786083, now seen corresponding path program 1 times [2023-12-19 13:37:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:37:32,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290813379] [2023-12-19 13:37:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:32,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:37:32,516 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:37:32,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992012913] [2023-12-19 13:37:32,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:32,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:37:32,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:37:32,518 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:37:32,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 13:37:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:37:32,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 13:37:32,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:37:32,610 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:37:32,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:37:32,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:37:32,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290813379] [2023-12-19 13:37:32,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:37:32,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992012913] [2023-12-19 13:37:32,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992012913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:37:32,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:37:32,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:37:32,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557380601] [2023-12-19 13:37:32,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:37:32,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:37:32,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:37:32,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:37:32,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:37:32,612 INFO L87 Difference]: Start difference. First operand 73 states and 105 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:37:32,634 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2023-12-19 13:37:32,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:37:32,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2023-12-19 13:37:32,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:37:32,638 INFO L225 Difference]: With dead ends: 132 [2023-12-19 13:37:32,638 INFO L226 Difference]: Without dead ends: 73 [2023-12-19 13:37:32,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:37:32,641 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 5 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:37:32,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 112 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:37:32,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-19 13:37:32,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-12-19 13:37:32,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 47 states have internal predecessors, (56), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 13:37:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 104 transitions. [2023-12-19 13:37:32,657 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 104 transitions. Word has length 103 [2023-12-19 13:37:32,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:37:32,658 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 104 transitions. [2023-12-19 13:37:32,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:32,658 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 104 transitions. [2023-12-19 13:37:32,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-19 13:37:32,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:37:32,659 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:37:32,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 13:37:32,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:37:32,866 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:37:32,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:37:32,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1216523543, now seen corresponding path program 1 times [2023-12-19 13:37:32,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:37:32,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147858022] [2023-12-19 13:37:32,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:32,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:37:32,898 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:37:32,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759565571] [2023-12-19 13:37:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:32,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:37:32,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:37:32,899 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:37:32,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 13:37:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:37:33,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 13:37:33,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:37:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:37:33,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:37:33,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:37:33,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147858022] [2023-12-19 13:37:33,030 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:37:33,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759565571] [2023-12-19 13:37:33,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759565571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:37:33,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:37:33,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:37:33,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103190762] [2023-12-19 13:37:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:37:33,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:37:33,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:37:33,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:37:33,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:37:33,036 INFO L87 Difference]: Start difference. First operand 73 states and 104 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:33,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:37:33,070 INFO L93 Difference]: Finished difference Result 153 states and 212 transitions. [2023-12-19 13:37:33,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:37:33,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2023-12-19 13:37:33,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:37:33,072 INFO L225 Difference]: With dead ends: 153 [2023-12-19 13:37:33,072 INFO L226 Difference]: Without dead ends: 94 [2023-12-19 13:37:33,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:37:33,074 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 28 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:37:33,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 131 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:37:33,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-19 13:37:33,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2023-12-19 13:37:33,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 59 states have internal predecessors, (67), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-19 13:37:33,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2023-12-19 13:37:33,093 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 103 [2023-12-19 13:37:33,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:37:33,094 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2023-12-19 13:37:33,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2023-12-19 13:37:33,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-19 13:37:33,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:37:33,096 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:37:33,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-19 13:37:33,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:37:33,301 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:37:33,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:37:33,302 INFO L85 PathProgramCache]: Analyzing trace with hash 899106042, now seen corresponding path program 1 times [2023-12-19 13:37:33,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:37:33,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678044994] [2023-12-19 13:37:33,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:33,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:37:33,327 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:37:33,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625762673] [2023-12-19 13:37:33,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:33,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:37:33,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:37:33,335 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:37:33,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 13:37:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:37:33,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 13:37:33,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:37:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:37:33,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:37:33,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:37:33,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678044994] [2023-12-19 13:37:33,423 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:37:33,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625762673] [2023-12-19 13:37:33,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625762673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:37:33,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:37:33,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:37:33,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436400792] [2023-12-19 13:37:33,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:37:33,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:37:33,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:37:33,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:37:33,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:37:33,425 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:33,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:37:33,459 INFO L93 Difference]: Finished difference Result 174 states and 235 transitions. [2023-12-19 13:37:33,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:37:33,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2023-12-19 13:37:33,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:37:33,460 INFO L225 Difference]: With dead ends: 174 [2023-12-19 13:37:33,460 INFO L226 Difference]: Without dead ends: 97 [2023-12-19 13:37:33,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:37:33,461 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 31 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:37:33,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 114 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:37:33,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-19 13:37:33,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 81. [2023-12-19 13:37:33,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 53 states have internal predecessors, (60), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 13:37:33,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 108 transitions. [2023-12-19 13:37:33,467 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 108 transitions. Word has length 103 [2023-12-19 13:37:33,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:37:33,467 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 108 transitions. [2023-12-19 13:37:33,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:33,467 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 108 transitions. [2023-12-19 13:37:33,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 13:37:33,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:37:33,468 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:37:33,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 13:37:33,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:37:33,673 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:37:33,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:37:33,674 INFO L85 PathProgramCache]: Analyzing trace with hash -2140946259, now seen corresponding path program 1 times [2023-12-19 13:37:33,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:37:33,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519692031] [2023-12-19 13:37:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:33,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:37:33,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:37:33,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025700670] [2023-12-19 13:37:33,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:33,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:37:33,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:37:33,692 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:37:33,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 13:37:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:37:33,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 13:37:33,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:37:33,812 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-19 13:37:33,812 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:37:33,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:37:33,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519692031] [2023-12-19 13:37:33,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:37:33,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025700670] [2023-12-19 13:37:33,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025700670] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:37:33,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:37:33,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:37:33,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348900236] [2023-12-19 13:37:33,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:37:33,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:37:33,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:37:33,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:37:33,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:37:33,813 INFO L87 Difference]: Start difference. First operand 81 states and 108 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:33,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:37:33,851 INFO L93 Difference]: Finished difference Result 194 states and 256 transitions. [2023-12-19 13:37:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:37:33,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2023-12-19 13:37:33,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:37:33,852 INFO L225 Difference]: With dead ends: 194 [2023-12-19 13:37:33,852 INFO L226 Difference]: Without dead ends: 131 [2023-12-19 13:37:33,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:37:33,853 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 53 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:37:33,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 124 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:37:33,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-12-19 13:37:33,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2023-12-19 13:37:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 80 states have (on average 1.125) internal successors, (90), 82 states have internal predecessors, (90), 40 states have call successors, (40), 7 states have call predecessors, (40), 7 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-19 13:37:33,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 170 transitions. [2023-12-19 13:37:33,862 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 170 transitions. Word has length 104 [2023-12-19 13:37:33,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:37:33,862 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 170 transitions. [2023-12-19 13:37:33,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-12-19 13:37:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 170 transitions. [2023-12-19 13:37:33,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 13:37:33,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:37:33,863 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:37:33,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 13:37:34,075 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,SelfDestructingSolverStorable7 [2023-12-19 13:37:34,076 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:37:34,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:37:34,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2139099217, now seen corresponding path program 1 times [2023-12-19 13:37:34,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:37:34,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249465002] [2023-12-19 13:37:34,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:34,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:37:34,091 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:37:34,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55820860] [2023-12-19 13:37:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:37:34,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:37:34,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:37:34,092 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) [2023-12-19 13:37:34,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 13:37:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:37:34,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 56 conjunts are in the unsatisfiable core [2023-12-19 13:37:34,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:37:41,648 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 294 proven. 75 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-19 13:37:41,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 13:37:59,475 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 13:39:08,009 WARN L293 SmtUtils]: Spent 1.03m on a formula simplification. DAG size of input: 58 DAG size of output: 51 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 13:39:55,854 WARN L293 SmtUtils]: Spent 5.51s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:40:03,868 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:40:25,753 WARN L293 SmtUtils]: Spent 16.80s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 13:40:53,983 WARN L293 SmtUtils]: Spent 11.71s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 13:41:28,619 WARN L293 SmtUtils]: Spent 22.82s on a formula simplification that was a NOOP. DAG size: 56 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 13:42:32,720 WARN L293 SmtUtils]: Spent 30.66s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-19 13:42:40,767 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 13:43:04,878 WARN L293 SmtUtils]: Spent 8.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-19 13:43:51,450 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 13:43:51,475 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 13:43:51,609 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 13:43:51,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 13:43:51,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:43:51,810 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 105 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 32 known predicates. [2023-12-19 13:43:51,813 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:43:51,815 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 13:43:51,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 01:43:51 BoogieIcfgContainer [2023-12-19 13:43:51,816 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 13:43:51,816 INFO L158 Benchmark]: Toolchain (without parser) took 885920.97ms. Allocated memory was 188.7MB in the beginning and 243.3MB in the end (delta: 54.5MB). Free memory was 151.4MB in the beginning and 185.3MB in the end (delta: -34.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-19 13:43:51,816 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 13:43:51,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.29ms. Allocated memory is still 188.7MB. Free memory was 151.0MB in the beginning and 138.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-19 13:43:51,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.24ms. Allocated memory is still 188.7MB. Free memory was 138.4MB in the beginning and 135.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 13:43:51,817 INFO L158 Benchmark]: Boogie Preprocessor took 42.37ms. Allocated memory is still 188.7MB. Free memory was 135.9MB in the beginning and 133.1MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 13:43:51,817 INFO L158 Benchmark]: RCFGBuilder took 351.67ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 114.9MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-19 13:43:51,819 INFO L158 Benchmark]: TraceAbstraction took 885265.38ms. Allocated memory was 188.7MB in the beginning and 243.3MB in the end (delta: 54.5MB). Free memory was 114.3MB in the beginning and 185.3MB in the end (delta: -71.1MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 13:43:51,820 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 144.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 207.29ms. Allocated memory is still 188.7MB. Free memory was 151.0MB in the beginning and 138.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.24ms. Allocated memory is still 188.7MB. Free memory was 138.4MB in the beginning and 135.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.37ms. Allocated memory is still 188.7MB. Free memory was 135.9MB in the beginning and 133.1MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 351.67ms. Allocated memory is still 188.7MB. Free memory was 133.1MB in the beginning and 114.9MB in the end (delta: 18.2MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 885265.38ms. Allocated memory was 188.7MB in the beginning and 243.3MB in the end (delta: 54.5MB). Free memory was 114.3MB in the beginning and 185.3MB in the end (delta: -71.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 105 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 32 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 885.2s, OverallIterations: 9, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 197.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 176.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 1481 SdHoareTripleChecker+Invalid, 176.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 392 IncrementalHoareTripleChecker+Unchecked, 922 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 469 IncrementalHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 559 mSDtfsCounter, 469 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 815 GetRequests, 789 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 76.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=8, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 83 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 307.4s InterpolantComputationTime, 918 NumberOfCodeBlocks, 918 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 810 ConstructedInterpolants, 1 QuantifiedInterpolants, 1301 SizeOfPredicates, 35 NumberOfNonLiveVariables, 1970 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 3840/3840 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown