/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/loop-lit/gj2007.c.i.p+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 04:34:49,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 04:34:49,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 04:34:49,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 04:34:49,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 04:34:49,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 04:34:49,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 04:34:49,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 04:34:49,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 04:34:49,208 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 04:34:49,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 04:34:49,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 04:34:49,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 04:34:49,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 04:34:49,210 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 04:34:49,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 04:34:49,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 04:34:49,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 04:34:49,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 04:34:49,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 04:34:49,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 04:34:49,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 04:34:49,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 04:34:49,224 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 04:34:49,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 04:34:49,224 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 04:34:49,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 04:34:49,225 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 04:34:49,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 04:34:49,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 04:34:49,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 04:34:49,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 04:34:49,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 04:34:49,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 04:34:49,226 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 04:34:49,226 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 04:34:49,226 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 04:34:49,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 04:34:49,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 04:34:49,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 04:34:49,226 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 04:34:49,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 04:34:49,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 04:34:49,227 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 04:34:49,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 04:34:49,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 04:34:49,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 04:34:49,424 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 04:34:49,425 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 04:34:49,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007.c.i.p+nlh-reducer.c [2023-12-21 04:34:50,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 04:34:50,658 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 04:34:50,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007.c.i.p+nlh-reducer.c [2023-12-21 04:34:50,665 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7cbe5d9/424943e5a2bf4b55832cf9b947e0973e/FLAG4c34989f1 [2023-12-21 04:34:50,674 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b7cbe5d9/424943e5a2bf4b55832cf9b947e0973e [2023-12-21 04:34:50,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 04:34:50,676 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 04:34:50,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 04:34:50,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 04:34:50,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 04:34:50,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:34:50" (1/1) ... [2023-12-21 04:34:50,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfe034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:50, skipping insertion in model container [2023-12-21 04:34:50,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:34:50" (1/1) ... [2023-12-21 04:34:50,723 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 04:34:50,881 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007.c.i.p+nlh-reducer.c[6448,6461] [2023-12-21 04:34:50,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 04:34:50,940 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 04:34:50,966 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007.c.i.p+nlh-reducer.c[6448,6461] [2023-12-21 04:34:50,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 04:34:51,009 INFO L206 MainTranslator]: Completed translation [2023-12-21 04:34:51,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51 WrapperNode [2023-12-21 04:34:51,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 04:34:51,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 04:34:51,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 04:34:51,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 04:34:51,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,048 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 637 [2023-12-21 04:34:51,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 04:34:51,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 04:34:51,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 04:34:51,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 04:34:51,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,072 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]. [2023-12-21 04:34:51,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,085 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,086 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,090 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 04:34:51,090 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 04:34:51,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 04:34:51,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 04:34:51,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (1/1) ... [2023-12-21 04:34:51,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 04:34:51,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 04:34:51,126 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) [2023-12-21 04:34:51,145 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 [2023-12-21 04:34:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 04:34:51,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 04:34:51,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 04:34:51,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 04:34:51,203 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 04:34:51,205 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 04:34:51,639 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 04:34:51,653 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 04:34:51,653 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 04:34:51,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:34:51 BoogieIcfgContainer [2023-12-21 04:34:51,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 04:34:51,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 04:34:51,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 04:34:51,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 04:34:51,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:34:50" (1/3) ... [2023-12-21 04:34:51,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30328da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:34:51, skipping insertion in model container [2023-12-21 04:34:51,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:34:51" (2/3) ... [2023-12-21 04:34:51,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30328da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:34:51, skipping insertion in model container [2023-12-21 04:34:51,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:34:51" (3/3) ... [2023-12-21 04:34:51,664 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007.c.i.p+nlh-reducer.c [2023-12-21 04:34:51,675 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 04:34:51,675 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 04:34:51,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 04:34:51,713 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;@27d63b94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 04:34:51,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 04:34:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 140 states have (on average 1.9857142857142858) internal successors, (278), 141 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:51,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:51,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:51,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:51,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:51,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:51,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2065817410, now seen corresponding path program 1 times [2023-12-21 04:34:51,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:51,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141595547] [2023-12-21 04:34:51,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:51,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:52,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:52,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141595547] [2023-12-21 04:34:52,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141595547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:52,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:52,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 04:34:52,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986014607] [2023-12-21 04:34:52,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:52,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 04:34:52,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:52,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 04:34:52,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 04:34:52,100 INFO L87 Difference]: Start difference. First operand has 142 states, 140 states have (on average 1.9857142857142858) internal successors, (278), 141 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:52,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:52,391 INFO L93 Difference]: Finished difference Result 281 states and 551 transitions. [2023-12-21 04:34:52,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 04:34:52,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:52,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:52,399 INFO L225 Difference]: With dead ends: 281 [2023-12-21 04:34:52,399 INFO L226 Difference]: Without dead ends: 140 [2023-12-21 04:34:52,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 04:34:52,403 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:52,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 274 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:34:52,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-21 04:34:52,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-12-21 04:34:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.4892086330935252) internal successors, (207), 139 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:52,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 207 transitions. [2023-12-21 04:34:52,430 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 207 transitions. Word has length 138 [2023-12-21 04:34:52,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:52,430 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 207 transitions. [2023-12-21 04:34:52,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:52,430 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 207 transitions. [2023-12-21 04:34:52,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:52,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:52,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:52,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 04:34:52,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:52,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:52,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1380941303, now seen corresponding path program 1 times [2023-12-21 04:34:52,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:52,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400162548] [2023-12-21 04:34:52,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:52,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:52,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:52,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400162548] [2023-12-21 04:34:52,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400162548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:52,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:52,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 04:34:52,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655795177] [2023-12-21 04:34:52,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:52,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 04:34:52,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:52,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 04:34:52,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 04:34:52,544 INFO L87 Difference]: Start difference. First operand 140 states and 207 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:52,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:52,888 INFO L93 Difference]: Finished difference Result 405 states and 604 transitions. [2023-12-21 04:34:52,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 04:34:52,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:52,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:52,892 INFO L225 Difference]: With dead ends: 405 [2023-12-21 04:34:52,892 INFO L226 Difference]: Without dead ends: 272 [2023-12-21 04:34:52,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 04:34:52,896 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 68 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:52,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 77 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:34:52,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-12-21 04:34:52,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2023-12-21 04:34:52,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.2546125461254614) internal successors, (340), 271 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:52,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 340 transitions. [2023-12-21 04:34:52,912 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 340 transitions. Word has length 138 [2023-12-21 04:34:52,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:52,912 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 340 transitions. [2023-12-21 04:34:52,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:52,913 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 340 transitions. [2023-12-21 04:34:52,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:52,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:52,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:52,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 04:34:52,916 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:52,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:52,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1091579007, now seen corresponding path program 1 times [2023-12-21 04:34:52,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:52,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893730127] [2023-12-21 04:34:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:52,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:53,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:53,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893730127] [2023-12-21 04:34:53,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893730127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:53,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:53,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 04:34:53,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031415030] [2023-12-21 04:34:53,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:53,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 04:34:53,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:53,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 04:34:53,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-21 04:34:53,072 INFO L87 Difference]: Start difference. First operand 272 states and 340 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:53,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:53,267 INFO L93 Difference]: Finished difference Result 401 states and 469 transitions. [2023-12-21 04:34:53,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 04:34:53,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:53,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:53,268 INFO L225 Difference]: With dead ends: 401 [2023-12-21 04:34:53,268 INFO L226 Difference]: Without dead ends: 266 [2023-12-21 04:34:53,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-21 04:34:53,272 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:53,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:34:53,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2023-12-21 04:34:53,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2023-12-21 04:34:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.2490566037735849) internal successors, (331), 265 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:53,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 331 transitions. [2023-12-21 04:34:53,291 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 331 transitions. Word has length 138 [2023-12-21 04:34:53,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:53,292 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 331 transitions. [2023-12-21 04:34:53,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:53,292 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 331 transitions. [2023-12-21 04:34:53,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:53,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:53,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:53,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 04:34:53,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:53,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:53,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1605575413, now seen corresponding path program 1 times [2023-12-21 04:34:53,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:53,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703598127] [2023-12-21 04:34:53,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:53,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:53,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:53,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703598127] [2023-12-21 04:34:53,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703598127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:53,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:53,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 04:34:53,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727342019] [2023-12-21 04:34:53,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:53,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 04:34:53,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:53,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 04:34:53,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-21 04:34:53,401 INFO L87 Difference]: Start difference. First operand 266 states and 331 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:53,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:53,602 INFO L93 Difference]: Finished difference Result 393 states and 458 transitions. [2023-12-21 04:34:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 04:34:53,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:53,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:53,637 INFO L225 Difference]: With dead ends: 393 [2023-12-21 04:34:53,637 INFO L226 Difference]: Without dead ends: 264 [2023-12-21 04:34:53,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-12-21 04:34:53,638 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:53,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 196 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:34:53,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-12-21 04:34:53,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2023-12-21 04:34:53,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 1.247148288973384) internal successors, (328), 263 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:53,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 328 transitions. [2023-12-21 04:34:53,642 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 328 transitions. Word has length 138 [2023-12-21 04:34:53,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:53,642 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 328 transitions. [2023-12-21 04:34:53,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:53,642 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 328 transitions. [2023-12-21 04:34:53,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:53,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:53,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:53,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 04:34:53,643 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:53,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:53,646 INFO L85 PathProgramCache]: Analyzing trace with hash 72262183, now seen corresponding path program 1 times [2023-12-21 04:34:53,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:53,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586215221] [2023-12-21 04:34:53,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:53,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:53,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:53,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:53,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586215221] [2023-12-21 04:34:53,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586215221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:53,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:53,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 04:34:53,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834982631] [2023-12-21 04:34:53,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:53,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 04:34:53,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:53,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 04:34:53,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-21 04:34:53,807 INFO L87 Difference]: Start difference. First operand 264 states and 328 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:54,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:54,039 INFO L93 Difference]: Finished difference Result 385 states and 449 transitions. [2023-12-21 04:34:54,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 04:34:54,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:54,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:54,040 INFO L225 Difference]: With dead ends: 385 [2023-12-21 04:34:54,040 INFO L226 Difference]: Without dead ends: 258 [2023-12-21 04:34:54,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-12-21 04:34:54,043 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:54,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:34:54,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-12-21 04:34:54,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2023-12-21 04:34:54,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 257 states have (on average 1.2412451361867705) internal successors, (319), 257 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 319 transitions. [2023-12-21 04:34:54,049 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 319 transitions. Word has length 138 [2023-12-21 04:34:54,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:54,049 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 319 transitions. [2023-12-21 04:34:54,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 9 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:54,050 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 319 transitions. [2023-12-21 04:34:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:54,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:54,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:54,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 04:34:54,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:54,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:54,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1119682688, now seen corresponding path program 1 times [2023-12-21 04:34:54,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:54,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029083942] [2023-12-21 04:34:54,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:54,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:54,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:54,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:54,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029083942] [2023-12-21 04:34:54,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029083942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:54,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:54,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 04:34:54,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524573109] [2023-12-21 04:34:54,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:54,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 04:34:54,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:54,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 04:34:54,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-21 04:34:54,258 INFO L87 Difference]: Start difference. First operand 258 states and 319 transitions. Second operand has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:54,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:54,543 INFO L93 Difference]: Finished difference Result 373 states and 434 transitions. [2023-12-21 04:34:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 04:34:54,543 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:54,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:54,544 INFO L225 Difference]: With dead ends: 373 [2023-12-21 04:34:54,544 INFO L226 Difference]: Without dead ends: 252 [2023-12-21 04:34:54,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-12-21 04:34:54,545 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:54,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:34:54,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-12-21 04:34:54,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-12-21 04:34:54,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 251 states have (on average 1.2350597609561753) internal successors, (310), 251 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 310 transitions. [2023-12-21 04:34:54,549 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 310 transitions. Word has length 138 [2023-12-21 04:34:54,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:54,550 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 310 transitions. [2023-12-21 04:34:54,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 12 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:54,550 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 310 transitions. [2023-12-21 04:34:54,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:54,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:54,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:54,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 04:34:54,551 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:54,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:54,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1980321201, now seen corresponding path program 1 times [2023-12-21 04:34:54,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:54,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596859521] [2023-12-21 04:34:54,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:54,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:54,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:54,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596859521] [2023-12-21 04:34:54,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596859521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:54,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:54,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 04:34:54,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063990282] [2023-12-21 04:34:54,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:54,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 04:34:54,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:54,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 04:34:54,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2023-12-21 04:34:54,805 INFO L87 Difference]: Start difference. First operand 252 states and 310 transitions. Second operand has 15 states, 15 states have (on average 9.2) internal successors, (138), 14 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:55,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:55,140 INFO L93 Difference]: Finished difference Result 363 states and 421 transitions. [2023-12-21 04:34:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 04:34:55,141 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.2) internal successors, (138), 14 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:55,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:55,142 INFO L225 Difference]: With dead ends: 363 [2023-12-21 04:34:55,142 INFO L226 Difference]: Without dead ends: 248 [2023-12-21 04:34:55,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2023-12-21 04:34:55,143 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:55,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 178 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:34:55,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-12-21 04:34:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2023-12-21 04:34:55,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 247 states have (on average 1.2307692307692308) internal successors, (304), 247 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 304 transitions. [2023-12-21 04:34:55,146 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 304 transitions. Word has length 138 [2023-12-21 04:34:55,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:55,146 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 304 transitions. [2023-12-21 04:34:55,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.2) internal successors, (138), 14 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 304 transitions. [2023-12-21 04:34:55,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:55,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:55,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:55,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 04:34:55,148 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:55,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:55,148 INFO L85 PathProgramCache]: Analyzing trace with hash 443614953, now seen corresponding path program 1 times [2023-12-21 04:34:55,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:55,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839594118] [2023-12-21 04:34:55,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:55,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:55,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:55,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:55,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839594118] [2023-12-21 04:34:55,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839594118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:55,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:55,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-21 04:34:55,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072115236] [2023-12-21 04:34:55,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:55,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 04:34:55,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:55,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 04:34:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2023-12-21 04:34:55,426 INFO L87 Difference]: Start difference. First operand 248 states and 304 transitions. Second operand has 19 states, 19 states have (on average 7.2631578947368425) internal successors, (138), 18 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:55,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:55,754 INFO L93 Difference]: Finished difference Result 351 states and 407 transitions. [2023-12-21 04:34:55,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 04:34:55,754 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.2631578947368425) internal successors, (138), 18 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:55,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:55,755 INFO L225 Difference]: With dead ends: 351 [2023-12-21 04:34:55,755 INFO L226 Difference]: Without dead ends: 240 [2023-12-21 04:34:55,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2023-12-21 04:34:55,756 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:55,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:34:55,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-12-21 04:34:55,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2023-12-21 04:34:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 239 states have (on average 1.2217573221757323) internal successors, (292), 239 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:55,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 292 transitions. [2023-12-21 04:34:55,759 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 292 transitions. Word has length 138 [2023-12-21 04:34:55,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:55,760 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 292 transitions. [2023-12-21 04:34:55,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.2631578947368425) internal successors, (138), 18 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:55,760 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 292 transitions. [2023-12-21 04:34:55,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:55,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:55,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:55,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 04:34:55,761 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:55,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:55,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1394752007, now seen corresponding path program 1 times [2023-12-21 04:34:55,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:55,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650810172] [2023-12-21 04:34:55,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:55,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:56,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:56,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650810172] [2023-12-21 04:34:56,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650810172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:56,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:56,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-21 04:34:56,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386622365] [2023-12-21 04:34:56,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:56,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-21 04:34:56,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:56,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-21 04:34:56,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2023-12-21 04:34:56,068 INFO L87 Difference]: Start difference. First operand 240 states and 292 transitions. Second operand has 22 states, 22 states have (on average 6.2727272727272725) internal successors, (138), 21 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:56,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:56,424 INFO L93 Difference]: Finished difference Result 337 states and 389 transitions. [2023-12-21 04:34:56,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-21 04:34:56,424 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.2727272727272725) internal successors, (138), 21 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:56,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:56,425 INFO L225 Difference]: With dead ends: 337 [2023-12-21 04:34:56,425 INFO L226 Difference]: Without dead ends: 234 [2023-12-21 04:34:56,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2023-12-21 04:34:56,426 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:56,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:34:56,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-21 04:34:56,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2023-12-21 04:34:56,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.2145922746781115) internal successors, (283), 233 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:56,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 283 transitions. [2023-12-21 04:34:56,430 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 283 transitions. Word has length 138 [2023-12-21 04:34:56,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:56,430 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 283 transitions. [2023-12-21 04:34:56,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.2727272727272725) internal successors, (138), 21 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:56,430 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 283 transitions. [2023-12-21 04:34:56,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:56,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:56,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:56,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 04:34:56,431 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:56,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:56,431 INFO L85 PathProgramCache]: Analyzing trace with hash 326618323, now seen corresponding path program 1 times [2023-12-21 04:34:56,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:56,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761385460] [2023-12-21 04:34:56,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:56,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:56,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:56,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761385460] [2023-12-21 04:34:56,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761385460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:56,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:56,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-21 04:34:56,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459582609] [2023-12-21 04:34:56,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:56,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 04:34:56,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:56,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 04:34:56,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-12-21 04:34:56,791 INFO L87 Difference]: Start difference. First operand 234 states and 283 transitions. Second operand has 23 states, 23 states have (on average 6.0) internal successors, (138), 22 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:57,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:57,090 INFO L93 Difference]: Finished difference Result 329 states and 378 transitions. [2023-12-21 04:34:57,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 04:34:57,090 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.0) internal successors, (138), 22 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:57,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:57,091 INFO L225 Difference]: With dead ends: 329 [2023-12-21 04:34:57,091 INFO L226 Difference]: Without dead ends: 232 [2023-12-21 04:34:57,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-12-21 04:34:57,092 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:57,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:34:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-12-21 04:34:57,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2023-12-21 04:34:57,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 1.2121212121212122) internal successors, (280), 231 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 280 transitions. [2023-12-21 04:34:57,096 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 280 transitions. Word has length 138 [2023-12-21 04:34:57,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:57,096 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 280 transitions. [2023-12-21 04:34:57,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.0) internal successors, (138), 22 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:57,097 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 280 transitions. [2023-12-21 04:34:57,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:57,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:57,098 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:57,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 04:34:57,098 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:57,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:57,098 INFO L85 PathProgramCache]: Analyzing trace with hash -707495457, now seen corresponding path program 1 times [2023-12-21 04:34:57,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:57,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781005474] [2023-12-21 04:34:57,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:57,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:57,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:57,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781005474] [2023-12-21 04:34:57,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781005474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:57,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:57,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2023-12-21 04:34:57,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958375403] [2023-12-21 04:34:57,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:57,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-21 04:34:57,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:57,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-21 04:34:57,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2023-12-21 04:34:57,494 INFO L87 Difference]: Start difference. First operand 232 states and 280 transitions. Second operand has 26 states, 26 states have (on average 5.3076923076923075) internal successors, (138), 25 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:57,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:57,680 INFO L93 Difference]: Finished difference Result 321 states and 369 transitions. [2023-12-21 04:34:57,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-21 04:34:57,680 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.3076923076923075) internal successors, (138), 25 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:57,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:57,681 INFO L225 Difference]: With dead ends: 321 [2023-12-21 04:34:57,681 INFO L226 Difference]: Without dead ends: 226 [2023-12-21 04:34:57,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2023-12-21 04:34:57,682 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:57,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:34:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-21 04:34:57,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2023-12-21 04:34:57,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.2044444444444444) internal successors, (271), 225 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:57,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 271 transitions. [2023-12-21 04:34:57,685 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 271 transitions. Word has length 138 [2023-12-21 04:34:57,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:57,685 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 271 transitions. [2023-12-21 04:34:57,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.3076923076923075) internal successors, (138), 25 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:57,686 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 271 transitions. [2023-12-21 04:34:57,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:57,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:57,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:57,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 04:34:57,687 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:57,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:57,687 INFO L85 PathProgramCache]: Analyzing trace with hash -270620632, now seen corresponding path program 1 times [2023-12-21 04:34:57,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:57,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803936575] [2023-12-21 04:34:57,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:57,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:58,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:58,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803936575] [2023-12-21 04:34:58,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803936575] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:58,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:58,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2023-12-21 04:34:58,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544469051] [2023-12-21 04:34:58,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:58,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-21 04:34:58,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:58,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-21 04:34:58,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2023-12-21 04:34:58,173 INFO L87 Difference]: Start difference. First operand 226 states and 271 transitions. Second operand has 29 states, 29 states have (on average 4.758620689655173) internal successors, (138), 28 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:58,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:58,355 INFO L93 Difference]: Finished difference Result 309 states and 354 transitions. [2023-12-21 04:34:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-21 04:34:58,356 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.758620689655173) internal successors, (138), 28 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:58,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:58,357 INFO L225 Difference]: With dead ends: 309 [2023-12-21 04:34:58,357 INFO L226 Difference]: Without dead ends: 220 [2023-12-21 04:34:58,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2023-12-21 04:34:58,358 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:58,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:34:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-21 04:34:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2023-12-21 04:34:58,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 219 states have (on average 1.1963470319634704) internal successors, (262), 219 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:58,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 262 transitions. [2023-12-21 04:34:58,363 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 262 transitions. Word has length 138 [2023-12-21 04:34:58,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:58,363 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 262 transitions. [2023-12-21 04:34:58,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.758620689655173) internal successors, (138), 28 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 262 transitions. [2023-12-21 04:34:58,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:58,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:58,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:58,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 04:34:58,365 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:58,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:58,365 INFO L85 PathProgramCache]: Analyzing trace with hash 891628695, now seen corresponding path program 1 times [2023-12-21 04:34:58,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:58,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647999156] [2023-12-21 04:34:58,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:58,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:58,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:58,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647999156] [2023-12-21 04:34:58,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647999156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:58,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:58,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2023-12-21 04:34:58,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988651279] [2023-12-21 04:34:58,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:58,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-21 04:34:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:58,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-21 04:34:58,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2023-12-21 04:34:58,832 INFO L87 Difference]: Start difference. First operand 220 states and 262 transitions. Second operand has 31 states, 31 states have (on average 4.451612903225806) internal successors, (138), 30 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:59,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:59,046 INFO L93 Difference]: Finished difference Result 299 states and 341 transitions. [2023-12-21 04:34:59,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-21 04:34:59,046 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.451612903225806) internal successors, (138), 30 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:59,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:59,047 INFO L225 Difference]: With dead ends: 299 [2023-12-21 04:34:59,047 INFO L226 Difference]: Without dead ends: 216 [2023-12-21 04:34:59,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2023-12-21 04:34:59,048 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:59,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:34:59,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-12-21 04:34:59,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2023-12-21 04:34:59,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.1906976744186046) internal successors, (256), 215 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:59,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 256 transitions. [2023-12-21 04:34:59,051 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 256 transitions. Word has length 138 [2023-12-21 04:34:59,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:59,051 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 256 transitions. [2023-12-21 04:34:59,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.451612903225806) internal successors, (138), 30 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:59,052 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 256 transitions. [2023-12-21 04:34:59,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:59,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:59,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:59,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 04:34:59,053 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:59,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash 866190961, now seen corresponding path program 1 times [2023-12-21 04:34:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409132162] [2023-12-21 04:34:59,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:59,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:34:59,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:34:59,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:34:59,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409132162] [2023-12-21 04:34:59,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409132162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:34:59,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:34:59,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2023-12-21 04:34:59,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132170764] [2023-12-21 04:34:59,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:34:59,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-21 04:34:59,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:34:59,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-21 04:34:59,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 04:34:59,577 INFO L87 Difference]: Start difference. First operand 216 states and 256 transitions. Second operand has 35 states, 35 states have (on average 3.942857142857143) internal successors, (138), 34 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:59,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:34:59,823 INFO L93 Difference]: Finished difference Result 287 states and 327 transitions. [2023-12-21 04:34:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-21 04:34:59,824 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.942857142857143) internal successors, (138), 34 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:34:59,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:34:59,824 INFO L225 Difference]: With dead ends: 287 [2023-12-21 04:34:59,824 INFO L226 Difference]: Without dead ends: 208 [2023-12-21 04:34:59,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 04:34:59,825 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:34:59,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:34:59,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-21 04:34:59,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2023-12-21 04:34:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 1.178743961352657) internal successors, (244), 207 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 244 transitions. [2023-12-21 04:34:59,828 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 244 transitions. Word has length 138 [2023-12-21 04:34:59,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:34:59,828 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 244 transitions. [2023-12-21 04:34:59,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.942857142857143) internal successors, (138), 34 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:34:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 244 transitions. [2023-12-21 04:34:59,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:34:59,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:34:59,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:34:59,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 04:34:59,830 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:34:59,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:34:59,830 INFO L85 PathProgramCache]: Analyzing trace with hash -309703311, now seen corresponding path program 1 times [2023-12-21 04:34:59,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:34:59,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321642636] [2023-12-21 04:34:59,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:34:59,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:34:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:00,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:00,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321642636] [2023-12-21 04:35:00,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321642636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:35:00,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:35:00,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2023-12-21 04:35:00,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497850028] [2023-12-21 04:35:00,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:35:00,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-21 04:35:00,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:00,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-21 04:35:00,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 04:35:00,477 INFO L87 Difference]: Start difference. First operand 208 states and 244 transitions. Second operand has 38 states, 38 states have (on average 3.6315789473684212) internal successors, (138), 37 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:00,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:00,756 INFO L93 Difference]: Finished difference Result 273 states and 309 transitions. [2023-12-21 04:35:00,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-21 04:35:00,756 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.6315789473684212) internal successors, (138), 37 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:35:00,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:00,757 INFO L225 Difference]: With dead ends: 273 [2023-12-21 04:35:00,757 INFO L226 Difference]: Without dead ends: 202 [2023-12-21 04:35:00,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 04:35:00,758 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:00,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:35:00,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-12-21 04:35:00,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2023-12-21 04:35:00,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.1691542288557213) internal successors, (235), 201 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 235 transitions. [2023-12-21 04:35:00,761 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 235 transitions. Word has length 138 [2023-12-21 04:35:00,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:00,761 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 235 transitions. [2023-12-21 04:35:00,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.6315789473684212) internal successors, (138), 37 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:00,761 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 235 transitions. [2023-12-21 04:35:00,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:35:00,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:00,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:00,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 04:35:00,762 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:00,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:00,762 INFO L85 PathProgramCache]: Analyzing trace with hash -967585381, now seen corresponding path program 1 times [2023-12-21 04:35:00,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:00,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981022153] [2023-12-21 04:35:00,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:00,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:01,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:01,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981022153] [2023-12-21 04:35:01,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981022153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:35:01,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:35:01,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2023-12-21 04:35:01,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20414309] [2023-12-21 04:35:01,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:35:01,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-21 04:35:01,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:01,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-21 04:35:01,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 04:35:01,458 INFO L87 Difference]: Start difference. First operand 202 states and 235 transitions. Second operand has 39 states, 39 states have (on average 3.5384615384615383) internal successors, (138), 38 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:01,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:01,734 INFO L93 Difference]: Finished difference Result 265 states and 298 transitions. [2023-12-21 04:35:01,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-21 04:35:01,735 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.5384615384615383) internal successors, (138), 38 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:35:01,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:01,735 INFO L225 Difference]: With dead ends: 265 [2023-12-21 04:35:01,736 INFO L226 Difference]: Without dead ends: 200 [2023-12-21 04:35:01,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2023-12-21 04:35:01,737 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:01,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:35:01,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-12-21 04:35:01,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2023-12-21 04:35:01,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.1658291457286432) internal successors, (232), 199 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:01,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 232 transitions. [2023-12-21 04:35:01,739 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 232 transitions. Word has length 138 [2023-12-21 04:35:01,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:01,739 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 232 transitions. [2023-12-21 04:35:01,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.5384615384615383) internal successors, (138), 38 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:01,740 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 232 transitions. [2023-12-21 04:35:01,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:35:01,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:01,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:01,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 04:35:01,740 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:01,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:01,741 INFO L85 PathProgramCache]: Analyzing trace with hash -511514985, now seen corresponding path program 1 times [2023-12-21 04:35:01,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:01,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044003570] [2023-12-21 04:35:01,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:01,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:02,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:02,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:02,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044003570] [2023-12-21 04:35:02,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044003570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:35:02,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:35:02,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2023-12-21 04:35:02,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153594019] [2023-12-21 04:35:02,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:35:02,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-21 04:35:02,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:02,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-21 04:35:02,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2023-12-21 04:35:02,526 INFO L87 Difference]: Start difference. First operand 200 states and 232 transitions. Second operand has 42 states, 42 states have (on average 3.2857142857142856) internal successors, (138), 41 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:02,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:02,723 INFO L93 Difference]: Finished difference Result 257 states and 289 transitions. [2023-12-21 04:35:02,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-21 04:35:02,724 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.2857142857142856) internal successors, (138), 41 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:35:02,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:02,725 INFO L225 Difference]: With dead ends: 257 [2023-12-21 04:35:02,725 INFO L226 Difference]: Without dead ends: 194 [2023-12-21 04:35:02,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2023-12-21 04:35:02,726 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:02,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:35:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-12-21 04:35:02,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2023-12-21 04:35:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.1554404145077721) internal successors, (223), 193 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 223 transitions. [2023-12-21 04:35:02,728 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 223 transitions. Word has length 138 [2023-12-21 04:35:02,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:02,729 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 223 transitions. [2023-12-21 04:35:02,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.2857142857142856) internal successors, (138), 41 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 223 transitions. [2023-12-21 04:35:02,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:35:02,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:02,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:02,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 04:35:02,730 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:02,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:02,730 INFO L85 PathProgramCache]: Analyzing trace with hash 789603536, now seen corresponding path program 1 times [2023-12-21 04:35:02,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:02,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254977094] [2023-12-21 04:35:02,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:02,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:03,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:03,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:03,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254977094] [2023-12-21 04:35:03,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254977094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:35:03,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:35:03,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2023-12-21 04:35:03,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151688631] [2023-12-21 04:35:03,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:35:03,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-12-21 04:35:03,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:03,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-12-21 04:35:03,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2023-12-21 04:35:03,556 INFO L87 Difference]: Start difference. First operand 194 states and 223 transitions. Second operand has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 44 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:03,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:03,774 INFO L93 Difference]: Finished difference Result 245 states and 274 transitions. [2023-12-21 04:35:03,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-21 04:35:03,774 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 44 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:35:03,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:03,775 INFO L225 Difference]: With dead ends: 245 [2023-12-21 04:35:03,775 INFO L226 Difference]: Without dead ends: 188 [2023-12-21 04:35:03,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2023-12-21 04:35:03,776 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:03,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:35:03,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-21 04:35:03,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-12-21 04:35:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.1443850267379678) internal successors, (214), 187 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 214 transitions. [2023-12-21 04:35:03,778 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 214 transitions. Word has length 138 [2023-12-21 04:35:03,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:03,779 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 214 transitions. [2023-12-21 04:35:03,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 44 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:03,779 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 214 transitions. [2023-12-21 04:35:03,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:35:03,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:03,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:03,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 04:35:03,780 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:03,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:03,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2102967263, now seen corresponding path program 1 times [2023-12-21 04:35:03,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:03,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607195969] [2023-12-21 04:35:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:03,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:04,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:04,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607195969] [2023-12-21 04:35:04,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607195969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:35:04,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:35:04,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2023-12-21 04:35:04,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377972082] [2023-12-21 04:35:04,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:35:04,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-12-21 04:35:04,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:04,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-12-21 04:35:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2023-12-21 04:35:04,646 INFO L87 Difference]: Start difference. First operand 188 states and 214 transitions. Second operand has 47 states, 47 states have (on average 2.9361702127659575) internal successors, (138), 46 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:04,862 INFO L93 Difference]: Finished difference Result 235 states and 261 transitions. [2023-12-21 04:35:04,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-21 04:35:04,863 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.9361702127659575) internal successors, (138), 46 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:35:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:04,864 INFO L225 Difference]: With dead ends: 235 [2023-12-21 04:35:04,864 INFO L226 Difference]: Without dead ends: 184 [2023-12-21 04:35:04,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2023-12-21 04:35:04,865 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:04,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:35:04,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-21 04:35:04,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-12-21 04:35:04,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.1366120218579234) internal successors, (208), 183 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 208 transitions. [2023-12-21 04:35:04,867 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 208 transitions. Word has length 138 [2023-12-21 04:35:04,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:04,868 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 208 transitions. [2023-12-21 04:35:04,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.9361702127659575) internal successors, (138), 46 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:04,868 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 208 transitions. [2023-12-21 04:35:04,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:35:04,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:04,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:04,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 04:35:04,868 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:04,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:04,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1728060153, now seen corresponding path program 1 times [2023-12-21 04:35:04,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:04,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429434983] [2023-12-21 04:35:04,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:04,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:05,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:05,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:05,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429434983] [2023-12-21 04:35:05,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429434983] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:35:05,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:35:05,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2023-12-21 04:35:05,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042825108] [2023-12-21 04:35:05,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:35:05,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-12-21 04:35:05,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:05,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-12-21 04:35:05,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2023-12-21 04:35:05,894 INFO L87 Difference]: Start difference. First operand 184 states and 208 transitions. Second operand has 51 states, 51 states have (on average 2.7058823529411766) internal successors, (138), 50 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:06,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:06,116 INFO L93 Difference]: Finished difference Result 223 states and 247 transitions. [2023-12-21 04:35:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-12-21 04:35:06,117 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.7058823529411766) internal successors, (138), 50 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:35:06,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:06,118 INFO L225 Difference]: With dead ends: 223 [2023-12-21 04:35:06,118 INFO L226 Difference]: Without dead ends: 176 [2023-12-21 04:35:06,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2023-12-21 04:35:06,120 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:06,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:35:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-12-21 04:35:06,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2023-12-21 04:35:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 1.12) internal successors, (196), 175 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:06,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 196 transitions. [2023-12-21 04:35:06,127 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 196 transitions. Word has length 138 [2023-12-21 04:35:06,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:06,127 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 196 transitions. [2023-12-21 04:35:06,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.7058823529411766) internal successors, (138), 50 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:06,127 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 196 transitions. [2023-12-21 04:35:06,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:35:06,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:06,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:06,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 04:35:06,128 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:06,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:06,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1486711273, now seen corresponding path program 1 times [2023-12-21 04:35:06,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:06,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096834081] [2023-12-21 04:35:06,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:06,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:07,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:07,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:07,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096834081] [2023-12-21 04:35:07,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096834081] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:35:07,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:35:07,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2023-12-21 04:35:07,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286166103] [2023-12-21 04:35:07,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:35:07,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-12-21 04:35:07,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:07,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-12-21 04:35:07,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1328, Invalid=1428, Unknown=0, NotChecked=0, Total=2756 [2023-12-21 04:35:07,204 INFO L87 Difference]: Start difference. First operand 176 states and 196 transitions. Second operand has 53 states, 53 states have (on average 2.6037735849056602) internal successors, (138), 52 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:07,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:07,456 INFO L93 Difference]: Finished difference Result 211 states and 231 transitions. [2023-12-21 04:35:07,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-21 04:35:07,458 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.6037735849056602) internal successors, (138), 52 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:35:07,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:07,458 INFO L225 Difference]: With dead ends: 211 [2023-12-21 04:35:07,458 INFO L226 Difference]: Without dead ends: 142 [2023-12-21 04:35:07,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1328, Invalid=1428, Unknown=0, NotChecked=0, Total=2756 [2023-12-21 04:35:07,459 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 80 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:07,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 4 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:35:07,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-21 04:35:07,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2023-12-21 04:35:07,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 1.014388489208633) internal successors, (141), 139 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:07,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 141 transitions. [2023-12-21 04:35:07,461 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 141 transitions. Word has length 138 [2023-12-21 04:35:07,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:07,461 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 141 transitions. [2023-12-21 04:35:07,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.6037735849056602) internal successors, (138), 52 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:07,461 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 141 transitions. [2023-12-21 04:35:07,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 04:35:07,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:07,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:07,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 04:35:07,462 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:07,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:07,462 INFO L85 PathProgramCache]: Analyzing trace with hash -851195132, now seen corresponding path program 1 times [2023-12-21 04:35:07,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:07,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493894508] [2023-12-21 04:35:07,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:07,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:09,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:09,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493894508] [2023-12-21 04:35:09,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493894508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:35:09,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:35:09,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2023-12-21 04:35:09,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035092662] [2023-12-21 04:35:09,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:35:09,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-12-21 04:35:09,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:09,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-12-21 04:35:09,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2023-12-21 04:35:09,172 INFO L87 Difference]: Start difference. First operand 140 states and 141 transitions. Second operand has 70 states, 70 states have (on average 1.9714285714285715) internal successors, (138), 69 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:09,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:09,443 INFO L93 Difference]: Finished difference Result 181 states and 183 transitions. [2023-12-21 04:35:09,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-12-21 04:35:09,443 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 1.9714285714285715) internal successors, (138), 69 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2023-12-21 04:35:09,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:09,444 INFO L225 Difference]: With dead ends: 181 [2023-12-21 04:35:09,444 INFO L226 Difference]: Without dead ends: 142 [2023-12-21 04:35:09,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2023-12-21 04:35:09,446 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:09,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 11 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 04:35:09,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-21 04:35:09,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2023-12-21 04:35:09,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 140 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:09,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2023-12-21 04:35:09,448 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 138 [2023-12-21 04:35:09,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:09,451 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2023-12-21 04:35:09,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 1.9714285714285715) internal successors, (138), 69 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2023-12-21 04:35:09,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-21 04:35:09,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:09,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:09,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 04:35:09,452 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:09,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:09,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1962261058, now seen corresponding path program 1 times [2023-12-21 04:35:09,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:09,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063764267] [2023-12-21 04:35:09,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:09,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:11,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:11,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063764267] [2023-12-21 04:35:11,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063764267] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 04:35:11,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508378642] [2023-12-21 04:35:11,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:11,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 04:35:11,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 04:35:11,200 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) [2023-12-21 04:35:11,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 04:35:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:11,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 70 conjunts are in the unsatisfiable core [2023-12-21 04:35:11,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 04:35:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:11,516 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 04:35:14,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:14,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508378642] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 04:35:14,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 04:35:14,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 102 [2023-12-21 04:35:14,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158365488] [2023-12-21 04:35:14,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 04:35:14,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2023-12-21 04:35:14,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:14,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2023-12-21 04:35:14,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2023-12-21 04:35:14,474 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand has 103 states, 103 states have (on average 2.7281553398058254) internal successors, (281), 102 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:14,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:14,808 INFO L93 Difference]: Finished difference Result 208 states and 239 transitions. [2023-12-21 04:35:14,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-12-21 04:35:14,809 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 2.7281553398058254) internal successors, (281), 102 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2023-12-21 04:35:14,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:14,812 INFO L225 Difference]: With dead ends: 208 [2023-12-21 04:35:14,812 INFO L226 Difference]: Without dead ends: 205 [2023-12-21 04:35:14,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 209 SyntacticMatches, 38 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2153 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2023-12-21 04:35:14,817 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 117 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:14,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 13 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:35:14,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-12-21 04:35:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-12-21 04:35:14,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.0049019607843137) internal successors, (205), 204 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:14,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 205 transitions. [2023-12-21 04:35:14,819 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 205 transitions. Word has length 140 [2023-12-21 04:35:14,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:14,819 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 205 transitions. [2023-12-21 04:35:14,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 2.7281553398058254) internal successors, (281), 102 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:14,820 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 205 transitions. [2023-12-21 04:35:14,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-21 04:35:14,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:14,820 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:14,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 04:35:15,026 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,SelfDestructingSolverStorable22 [2023-12-21 04:35:15,027 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:15,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:15,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2094150910, now seen corresponding path program 2 times [2023-12-21 04:35:15,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:15,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282490986] [2023-12-21 04:35:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:16,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:16,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:16,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282490986] [2023-12-21 04:35:16,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282490986] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 04:35:16,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163385557] [2023-12-21 04:35:16,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 04:35:16,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 04:35:16,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 04:35:16,406 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) [2023-12-21 04:35:16,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 04:35:16,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 04:35:16,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 04:35:16,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 108 conjunts are in the unsatisfiable core [2023-12-21 04:35:16,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 04:35:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:16,739 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 04:35:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:16,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163385557] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 04:35:16,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 04:35:16,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53, 53] total 54 [2023-12-21 04:35:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090180999] [2023-12-21 04:35:16,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 04:35:16,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-12-21 04:35:16,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-12-21 04:35:16,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=2862, Unknown=0, NotChecked=0, Total=2970 [2023-12-21 04:35:16,941 INFO L87 Difference]: Start difference. First operand 205 states and 205 transitions. Second operand has 55 states, 55 states have (on average 3.7454545454545456) internal successors, (206), 54 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:17,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:17,794 INFO L93 Difference]: Finished difference Result 211 states and 211 transitions. [2023-12-21 04:35:17,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-21 04:35:17,804 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 3.7454545454545456) internal successors, (206), 54 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 204 [2023-12-21 04:35:17,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:17,805 INFO L225 Difference]: With dead ends: 211 [2023-12-21 04:35:17,805 INFO L226 Difference]: Without dead ends: 208 [2023-12-21 04:35:17,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=113, Invalid=2967, Unknown=0, NotChecked=0, Total=3080 [2023-12-21 04:35:17,805 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 2 mSDsluCounter, 7804 mSDsCounter, 0 mSdLazyCounter, 2759 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7957 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:17,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7957 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2759 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 04:35:17,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-21 04:35:17,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2023-12-21 04:35:17,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.0048543689320388) internal successors, (207), 206 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:17,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 207 transitions. [2023-12-21 04:35:17,808 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 207 transitions. Word has length 204 [2023-12-21 04:35:17,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:17,808 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 207 transitions. [2023-12-21 04:35:17,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.7454545454545456) internal successors, (206), 54 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:17,808 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 207 transitions. [2023-12-21 04:35:17,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-21 04:35:17,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 04:35:17,809 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:17,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 04:35:18,013 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,SelfDestructingSolverStorable23 [2023-12-21 04:35:18,014 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 04:35:18,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 04:35:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1868162760, now seen corresponding path program 3 times [2023-12-21 04:35:18,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 04:35:18,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720757731] [2023-12-21 04:35:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 04:35:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 04:35:18,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 04:35:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 1156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 04:35:19,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 04:35:19,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720757731] [2023-12-21 04:35:19,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720757731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 04:35:19,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 04:35:19,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2023-12-21 04:35:19,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381682157] [2023-12-21 04:35:19,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 04:35:19,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-21 04:35:19,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 04:35:19,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-21 04:35:19,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 04:35:19,286 INFO L87 Difference]: Start difference. First operand 207 states and 207 transitions. Second operand has 52 states, 52 states have (on average 3.9615384615384617) internal successors, (206), 52 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:19,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 04:35:19,586 INFO L93 Difference]: Finished difference Result 207 states and 207 transitions. [2023-12-21 04:35:19,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-21 04:35:19,586 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 3.9615384615384617) internal successors, (206), 52 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2023-12-21 04:35:19,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 04:35:19,587 INFO L225 Difference]: With dead ends: 207 [2023-12-21 04:35:19,587 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 04:35:19,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 04:35:19,588 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 04:35:19,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 04:35:19,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 04:35:19,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 04:35:19,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:19,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 04:35:19,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 206 [2023-12-21 04:35:19,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 04:35:19,589 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 04:35:19,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.9615384615384617) internal successors, (206), 52 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 04:35:19,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 04:35:19,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 04:35:19,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 04:35:19,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 04:35:19,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 556) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 688) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 820) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 952) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 1084) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 1216) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point $Ultimate##202(lines 317 657) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 484) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L337(lines 337 616) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 748) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 880) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 1012) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 1144) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 544) no Hoare annotation was computed. [2023-12-21 04:35:19,596 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 676) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 808) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 940) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 1072) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 1204) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 13 1258) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 451) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L409(lines 409 472) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 604) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L277(lines 277 736) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L211(lines 211 868) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 1000) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 1132) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L379(lines 379 532) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L313(lines 313 664) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 796) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 928) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 1060) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 1192) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 1257) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 460) no Hoare annotation was computed. [2023-12-21 04:35:19,597 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 592) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 724) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 856) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 988) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 1120) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 1252) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point $Ultimate##90(lines 149 993) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point $Ultimate##94(lines 155 981) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point $Ultimate##98(lines 161 969) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 520) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 652) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L253(lines 253 784) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point $Ultimate##82(lines 137 1017) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L187(lines 187 916) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 1048) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 1180) no Hoare annotation was computed. [2023-12-21 04:35:19,598 INFO L899 garLoopResultBuilder]: For program point $Ultimate##86(lines 143 1005) no Hoare annotation was computed. [2023-12-21 04:35:19,599 INFO L899 garLoopResultBuilder]: For program point $Ultimate##70(lines 119 1053) no Hoare annotation was computed. [2023-12-21 04:35:19,599 INFO L899 garLoopResultBuilder]: For program point $Ultimate##170(lines 269 753) no Hoare annotation was computed. [2023-12-21 04:35:19,599 INFO L899 garLoopResultBuilder]: For program point $Ultimate##74(lines 125 1041) no Hoare annotation was computed. [2023-12-21 04:35:19,599 INFO L899 garLoopResultBuilder]: For program point $Ultimate##174(lines 275 741) no Hoare annotation was computed. [2023-12-21 04:35:19,599 INFO L899 garLoopResultBuilder]: For program point $Ultimate##78(lines 131 1029) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##178(lines 281 729) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##182(lines 287 717) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##186(lines 293 705) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##62(lines 107 1077) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 580) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##66(lines 113 1065) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point L289(lines 289 712) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 844) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##50(lines 89 1113) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 976) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 1108) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 1240) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##190(lines 299 693) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##194(lines 305 681) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##54(lines 95 1101) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##198(lines 311 669) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point L422(lines 422 433) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##58(lines 101 1089) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##42(lines 77 1137) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##46(lines 83 1125) no Hoare annotation was computed. [2023-12-21 04:35:19,600 INFO L899 garLoopResultBuilder]: For program point $Ultimate##38(lines 71 1149) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##250(lines 389 513) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##254(lines 395 501) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##30(lines 59 1173) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 508) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##130(lines 209 873) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 640) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##258(lines 401 489) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##34(lines 65 1161) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 772) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##134(lines 215 861) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 904) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##6(lines 23 1245) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point L127(lines 127 1036) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##138(lines 221 849) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 1168) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##26(lines 53 1185) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##142(lines 227 837) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##262(lines 407 477) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##146(lines 233 825) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##22(lines 47 1197) no Hoare annotation was computed. [2023-12-21 04:35:19,601 INFO L899 garLoopResultBuilder]: For program point $Ultimate##266(lines 413 465) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##18(lines 41 1209) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##150(lines 239 813) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##270(lines 420 453) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##10(lines 29 1233) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##154(lines 245 801) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##14(lines 35 1221) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##158(lines 251 789) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##162(lines 257 777) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point $Ultimate##166(lines 263 765) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 568) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 700) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 832) no Hoare annotation was computed. [2023-12-21 04:35:19,602 INFO L899 garLoopResultBuilder]: For program point L163(lines 163 964) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point L97(lines 97 1096) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point $Ultimate##206(lines 323 645) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 1228) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point $Ultimate##210(lines 329 633) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point $Ultimate##214(lines 335 621) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point $Ultimate##218(lines 341 609) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 444) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point $Ultimate##102(lines 167 957) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point $Ultimate##222(lines 347 597) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point $Ultimate##106(lines 173 945) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point $Ultimate##226(lines 353 585) no Hoare annotation was computed. [2023-12-21 04:35:19,603 INFO L899 garLoopResultBuilder]: For program point L397(lines 397 496) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 628) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 760) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##110(lines 179 933) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 892) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##230(lines 359 573) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 1024) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##114(lines 185 921) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 1156) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##234(lines 365 561) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##118(lines 191 909) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##238(lines 371 549) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##122(lines 197 897) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##242(lines 377 537) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##126(lines 203 885) no Hoare annotation was computed. [2023-12-21 04:35:19,604 INFO L899 garLoopResultBuilder]: For program point $Ultimate##246(lines 383 525) no Hoare annotation was computed. [2023-12-21 04:35:19,606 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 04:35:19,608 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 04:35:19,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 04:35:19 BoogieIcfgContainer [2023-12-21 04:35:19,612 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 04:35:19,613 INFO L158 Benchmark]: Toolchain (without parser) took 28936.60ms. Allocated memory was 275.8MB in the beginning and 601.9MB in the end (delta: 326.1MB). Free memory was 222.2MB in the beginning and 365.1MB in the end (delta: -142.8MB). Peak memory consumption was 184.4MB. Max. memory is 8.0GB. [2023-12-21 04:35:19,613 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 218.1MB. Free memory is still 167.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 04:35:19,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.80ms. Allocated memory is still 275.8MB. Free memory was 221.9MB in the beginning and 200.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-21 04:35:19,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.65ms. Allocated memory is still 275.8MB. Free memory was 200.9MB in the beginning and 197.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 04:35:19,613 INFO L158 Benchmark]: Boogie Preprocessor took 40.78ms. Allocated memory is still 275.8MB. Free memory was 197.8MB in the beginning and 194.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 04:35:19,613 INFO L158 Benchmark]: RCFGBuilder took 563.57ms. Allocated memory is still 275.8MB. Free memory was 194.2MB in the beginning and 209.1MB in the end (delta: -14.9MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. [2023-12-21 04:35:19,618 INFO L158 Benchmark]: TraceAbstraction took 27957.53ms. Allocated memory was 275.8MB in the beginning and 601.9MB in the end (delta: 326.1MB). Free memory was 208.6MB in the beginning and 365.1MB in the end (delta: -156.5MB). Peak memory consumption was 169.6MB. Max. memory is 8.0GB. [2023-12-21 04:35:19,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 218.1MB. Free memory is still 167.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 326.80ms. Allocated memory is still 275.8MB. Free memory was 221.9MB in the beginning and 200.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.65ms. Allocated memory is still 275.8MB. Free memory was 200.9MB in the beginning and 197.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.78ms. Allocated memory is still 275.8MB. Free memory was 197.8MB in the beginning and 194.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 563.57ms. Allocated memory is still 275.8MB. Free memory was 194.2MB in the beginning and 209.1MB in the end (delta: -14.9MB). Peak memory consumption was 18.0MB. Max. memory is 8.0GB. * TraceAbstraction took 27957.53ms. Allocated memory was 275.8MB in the beginning and 601.9MB in the end (delta: 326.1MB). Free memory was 208.6MB in the beginning and 365.1MB in the end (delta: -156.5MB). Peak memory consumption was 169.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 444]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 142 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 27.9s, OverallIterations: 25, TraceHistogramMax: 34, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 268 mSDsluCounter, 10900 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7949 mSDsCounter, 417 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17691 IncrementalHoareTripleChecker+Invalid, 18108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 417 mSolverCounterUnsat, 2951 mSDtfsCounter, 17691 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1466 GetRequests, 640 SyntacticMatches, 38 SemanticMatches, 788 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2153 ImplicationChecksByTransitivity, 12.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=2, InterpolantAutomatonStates: 835, 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, 25 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FormulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 19.1s InterpolantComputationTime, 3930 NumberOfCodeBlocks, 3930 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 4245 ConstructedInterpolants, 0 QuantifiedInterpolants, 8809 SizeOfPredicates, 2 NumberOfNonLiveVariables, 882 ConjunctsInSsa, 178 ConjunctsInUnsatCore, 29 InterpolantComputations, 23 PerfectInterpolantSequences, 1156/4426 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-21 04:35:19,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...