/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/combinations/Problem05_label43+token_ring.03.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 11:23:42,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 11:23:42,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 11:23:42,746 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 11:23:42,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 11:23:42,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 11:23:42,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 11:23:42,769 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 11:23:42,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 11:23:42,772 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 11:23:42,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 11:23:42,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 11:23:42,774 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 11:23:42,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 11:23:42,775 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 11:23:42,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 11:23:42,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 11:23:42,775 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 11:23:42,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 11:23:42,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 11:23:42,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 11:23:42,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 11:23:42,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 11:23:42,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 11:23:42,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 11:23:42,776 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 11:23:42,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 11:23:42,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 11:23:42,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 11:23:42,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 11:23:42,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 11:23:42,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 11:23:42,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:23:42,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 11:23:42,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 11:23:42,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 11:23:42,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 11:23:42,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 11:23:42,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 11:23:42,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 11:23:42,779 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 11:23:42,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 11:23:42,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 11:23:42,780 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 11:23:42,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 11:23:43,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 11:23:43,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 11:23:43,005 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 11:23:43,011 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 11:23:43,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.03.cil-2.c [2023-12-20 11:23:44,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 11:23:44,632 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 11:23:44,633 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.03.cil-2.c [2023-12-20 11:23:44,682 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4e7f5f8/b175018fdef34b2c95fb797e222c4e83/FLAG345b4e00c [2023-12-20 11:23:44,699 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d4e7f5f8/b175018fdef34b2c95fb797e222c4e83 [2023-12-20 11:23:44,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 11:23:44,702 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 11:23:44,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 11:23:44,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 11:23:44,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 11:23:44,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:23:44" (1/1) ... [2023-12-20 11:23:44,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7aada1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:44, skipping insertion in model container [2023-12-20 11:23:44,709 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:23:44" (1/1) ... [2023-12-20 11:23:44,863 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 11:23:45,922 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.03.cil-2.c[381679,381692] [2023-12-20 11:23:45,950 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.03.cil-2.c[383339,383352] [2023-12-20 11:23:46,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:23:46,088 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 11:23:46,701 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.03.cil-2.c[381679,381692] [2023-12-20 11:23:46,706 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.03.cil-2.c[383339,383352] [2023-12-20 11:23:46,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:23:46,773 INFO L206 MainTranslator]: Completed translation [2023-12-20 11:23:46,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46 WrapperNode [2023-12-20 11:23:46,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 11:23:46,775 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 11:23:46,775 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 11:23:46,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 11:23:46,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:46,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,089 INFO L138 Inliner]: procedures = 50, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12693 [2023-12-20 11:23:47,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 11:23:47,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 11:23:47,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 11:23:47,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 11:23:47,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,222 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 11:23:47,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 11:23:47,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 11:23:47,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 11:23:47,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 11:23:47,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (1/1) ... [2023-12-20 11:23:47,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:23:47,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:23:47,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 11:23:47,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 11:23:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 11:23:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-20 11:23:47,749 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-20 11:23:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-20 11:23:47,750 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-20 11:23:47,751 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-20 11:23:47,751 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-20 11:23:47,751 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-20 11:23:47,751 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-20 11:23:47,751 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-20 11:23:47,751 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-20 11:23:47,751 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-20 11:23:47,751 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-20 11:23:47,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 11:23:47,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 11:23:47,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 11:23:47,823 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 11:23:47,824 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 11:23:53,637 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 11:23:53,727 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 11:23:53,727 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-12-20 11:23:53,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:23:53 BoogieIcfgContainer [2023-12-20 11:23:53,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 11:23:53,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 11:23:53,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 11:23:53,734 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 11:23:53,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 11:23:44" (1/3) ... [2023-12-20 11:23:53,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7795adcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:23:53, skipping insertion in model container [2023-12-20 11:23:53,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:23:46" (2/3) ... [2023-12-20 11:23:53,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7795adcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:23:53, skipping insertion in model container [2023-12-20 11:23:53,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:23:53" (3/3) ... [2023-12-20 11:23:53,737 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.03.cil-2.c [2023-12-20 11:23:53,749 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 11:23:53,750 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-20 11:23:53,816 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 11:23:53,821 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;@46cba975, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 11:23:53,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-20 11:23:53,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-20 11:23:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 11:23:53,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:23:53,845 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] [2023-12-20 11:23:53,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:23:53,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:23:53,850 INFO L85 PathProgramCache]: Analyzing trace with hash 823068321, now seen corresponding path program 1 times [2023-12-20 11:23:53,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:23:53,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627628618] [2023-12-20 11:23:53,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:23:53,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:23:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:54,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:23:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:54,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:23:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:23:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:23:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:23:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:23:54,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:23:54,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627628618] [2023-12-20 11:23:54,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627628618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:23:54,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:23:54,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 11:23:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195587342] [2023-12-20 11:23:54,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:23:54,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 11:23:54,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:23:54,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 11:23:54,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 11:23:54,246 INFO L87 Difference]: Start difference. First operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:55,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:23:55,138 INFO L93 Difference]: Finished difference Result 4732 states and 8845 transitions. [2023-12-20 11:23:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 11:23:55,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-20 11:23:55,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:23:55,160 INFO L225 Difference]: With dead ends: 4732 [2023-12-20 11:23:55,160 INFO L226 Difference]: Without dead ends: 2471 [2023-12-20 11:23:55,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:23:55,169 INFO L413 NwaCegarLoop]: 4074 mSDtfsCounter, 4459 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 16269 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:23:55,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 16269 Invalid, 864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 11:23:55,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-12-20 11:23:55,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2392. [2023-12-20 11:23:55,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2348 states have (on average 1.8373083475298126) internal successors, (4314), 2351 states have internal predecessors, (4314), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2023-12-20 11:23:55,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 4375 transitions. [2023-12-20 11:23:55,274 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 4375 transitions. Word has length 71 [2023-12-20 11:23:55,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:23:55,275 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 4375 transitions. [2023-12-20 11:23:55,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:55,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 4375 transitions. [2023-12-20 11:23:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 11:23:55,278 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:23:55,278 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] [2023-12-20 11:23:55,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 11:23:55,278 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:23:55,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:23:55,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1524316709, now seen corresponding path program 1 times [2023-12-20 11:23:55,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:23:55,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735330431] [2023-12-20 11:23:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:23:55,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:23:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:55,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:23:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:55,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:23:55,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:55,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:23:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:55,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:23:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:55,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:23:55,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:23:55,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:23:55,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735330431] [2023-12-20 11:23:55,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735330431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:23:55,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:23:55,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:23:55,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072395303] [2023-12-20 11:23:55,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:23:55,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:23:55,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:23:55,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:23:55,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:23:55,509 INFO L87 Difference]: Start difference. First operand 2392 states and 4375 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:56,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:23:56,503 INFO L93 Difference]: Finished difference Result 2906 states and 5181 transitions. [2023-12-20 11:23:56,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:23:56,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-20 11:23:56,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:23:56,512 INFO L225 Difference]: With dead ends: 2906 [2023-12-20 11:23:56,512 INFO L226 Difference]: Without dead ends: 2644 [2023-12-20 11:23:56,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:23:56,515 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 4453 mSDsluCounter, 16419 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 20570 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:23:56,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 20570 Invalid, 1329 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 11:23:56,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2023-12-20 11:23:56,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2515. [2023-12-20 11:23:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 2452 states have (on average 1.8242251223491028) internal successors, (4473), 2456 states have internal predecessors, (4473), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2023-12-20 11:23:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 4560 transitions. [2023-12-20 11:23:56,571 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 4560 transitions. Word has length 71 [2023-12-20 11:23:56,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:23:56,572 INFO L495 AbstractCegarLoop]: Abstraction has 2515 states and 4560 transitions. [2023-12-20 11:23:56,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:56,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 4560 transitions. [2023-12-20 11:23:56,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 11:23:56,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:23:56,574 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] [2023-12-20 11:23:56,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 11:23:56,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:23:56,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:23:56,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1958045795, now seen corresponding path program 1 times [2023-12-20 11:23:56,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:23:56,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046300056] [2023-12-20 11:23:56,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:23:56,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:23:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:23:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:23:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:23:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:56,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:23:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:56,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:23:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:56,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:23:56,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:23:56,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046300056] [2023-12-20 11:23:56,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046300056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:23:56,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:23:56,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:23:56,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467916693] [2023-12-20 11:23:56,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:23:56,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:23:56,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:23:56,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:23:56,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:23:56,722 INFO L87 Difference]: Start difference. First operand 2515 states and 4560 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:57,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:23:57,713 INFO L93 Difference]: Finished difference Result 3352 states and 5868 transitions. [2023-12-20 11:23:57,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:23:57,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-20 11:23:57,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:23:57,725 INFO L225 Difference]: With dead ends: 3352 [2023-12-20 11:23:57,725 INFO L226 Difference]: Without dead ends: 2967 [2023-12-20 11:23:57,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:23:57,734 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4451 mSDsluCounter, 16419 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4461 SdHoareTripleChecker+Valid, 20568 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:23:57,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4461 Valid, 20568 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 11:23:57,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2023-12-20 11:23:57,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2762. [2023-12-20 11:23:57,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2661 states have (on average 1.8008267568583238) internal successors, (4792), 2667 states have internal predecessors, (4792), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2023-12-20 11:23:57,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4935 transitions. [2023-12-20 11:23:57,810 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4935 transitions. Word has length 71 [2023-12-20 11:23:57,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:23:57,811 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4935 transitions. [2023-12-20 11:23:57,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:57,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4935 transitions. [2023-12-20 11:23:57,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 11:23:57,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:23:57,818 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] [2023-12-20 11:23:57,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 11:23:57,818 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:23:57,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:23:57,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1076004251, now seen corresponding path program 1 times [2023-12-20 11:23:57,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:23:57,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54003438] [2023-12-20 11:23:57,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:23:57,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:23:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:57,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:23:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:57,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:23:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:57,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:23:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:23:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:57,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:23:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:57,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:23:57,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:23:57,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54003438] [2023-12-20 11:23:57,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54003438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:23:57,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:23:57,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:23:57,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538579888] [2023-12-20 11:23:57,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:23:57,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:23:57,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:23:57,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:23:57,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:23:57,909 INFO L87 Difference]: Start difference. First operand 2762 states and 4935 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:58,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:23:58,340 INFO L93 Difference]: Finished difference Result 3589 states and 6236 transitions. [2023-12-20 11:23:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:23:58,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-20 11:23:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:23:58,350 INFO L225 Difference]: With dead ends: 3589 [2023-12-20 11:23:58,351 INFO L226 Difference]: Without dead ends: 2957 [2023-12-20 11:23:58,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:23:58,354 INFO L413 NwaCegarLoop]: 4057 mSDtfsCounter, 4387 mSDsluCounter, 12099 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4398 SdHoareTripleChecker+Valid, 16156 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:23:58,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4398 Valid, 16156 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 11:23:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2023-12-20 11:23:58,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2762. [2023-12-20 11:23:58,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2661 states have (on average 1.7989477639984968) internal successors, (4787), 2667 states have internal predecessors, (4787), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2023-12-20 11:23:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4930 transitions. [2023-12-20 11:23:58,422 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4930 transitions. Word has length 71 [2023-12-20 11:23:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:23:58,423 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4930 transitions. [2023-12-20 11:23:58,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4930 transitions. [2023-12-20 11:23:58,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 11:23:58,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:23:58,424 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] [2023-12-20 11:23:58,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 11:23:58,425 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:23:58,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:23:58,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1035329501, now seen corresponding path program 1 times [2023-12-20 11:23:58,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:23:58,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853877750] [2023-12-20 11:23:58,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:23:58,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:23:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:58,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:23:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:58,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:23:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:58,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:23:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:58,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:23:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:58,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:23:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:23:58,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:23:58,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853877750] [2023-12-20 11:23:58,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853877750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:23:58,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:23:58,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:23:58,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640288781] [2023-12-20 11:23:58,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:23:58,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:23:58,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:23:58,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:23:58,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:23:58,522 INFO L87 Difference]: Start difference. First operand 2762 states and 4930 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:59,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:23:59,584 INFO L93 Difference]: Finished difference Result 4380 states and 7425 transitions. [2023-12-20 11:23:59,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:23:59,585 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-20 11:23:59,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:23:59,597 INFO L225 Difference]: With dead ends: 4380 [2023-12-20 11:23:59,597 INFO L226 Difference]: Without dead ends: 3748 [2023-12-20 11:23:59,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:23:59,604 INFO L413 NwaCegarLoop]: 4147 mSDtfsCounter, 4558 mSDsluCounter, 16414 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 20561 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:23:59,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4572 Valid, 20561 Invalid, 1287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 11:23:59,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2023-12-20 11:23:59,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3253. [2023-12-20 11:23:59,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3080 states have (on average 1.7603896103896104) internal successors, (5422), 3090 states have internal predecessors, (5422), 109 states have call successors, (109), 54 states have call predecessors, (109), 62 states have return successors, (144), 116 states have call predecessors, (144), 109 states have call successors, (144) [2023-12-20 11:23:59,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 5675 transitions. [2023-12-20 11:23:59,689 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 5675 transitions. Word has length 71 [2023-12-20 11:23:59,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:23:59,690 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 5675 transitions. [2023-12-20 11:23:59,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:23:59,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 5675 transitions. [2023-12-20 11:23:59,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 11:23:59,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:23:59,692 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] [2023-12-20 11:23:59,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 11:23:59,692 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:23:59,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:23:59,693 INFO L85 PathProgramCache]: Analyzing trace with hash 351455909, now seen corresponding path program 1 times [2023-12-20 11:23:59,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:23:59,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823757970] [2023-12-20 11:23:59,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:23:59,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:23:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:59,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:23:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:59,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:23:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:59,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:23:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:23:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:23:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:23:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:23:59,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:23:59,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823757970] [2023-12-20 11:23:59,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823757970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:23:59,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:23:59,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:23:59,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319864289] [2023-12-20 11:23:59,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:23:59,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:23:59,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:23:59,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:23:59,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:23:59,818 INFO L87 Difference]: Start difference. First operand 3253 states and 5675 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:24:00,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:00,804 INFO L93 Difference]: Finished difference Result 6161 states and 10154 transitions. [2023-12-20 11:24:00,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:24:00,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-20 11:24:00,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:00,823 INFO L225 Difference]: With dead ends: 6161 [2023-12-20 11:24:00,823 INFO L226 Difference]: Without dead ends: 5038 [2023-12-20 11:24:00,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:24:00,832 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 4460 mSDsluCounter, 16411 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 20557 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:00,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 20557 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 11:24:00,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5038 states. [2023-12-20 11:24:00,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5038 to 4191. [2023-12-20 11:24:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4191 states, 3878 states have (on average 1.709128416709644) internal successors, (6628), 3896 states have internal predecessors, (6628), 193 states have call successors, (193), 102 states have call predecessors, (193), 118 states have return successors, (290), 208 states have call predecessors, (290), 193 states have call successors, (290) [2023-12-20 11:24:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 7111 transitions. [2023-12-20 11:24:00,996 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 7111 transitions. Word has length 71 [2023-12-20 11:24:00,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:00,996 INFO L495 AbstractCegarLoop]: Abstraction has 4191 states and 7111 transitions. [2023-12-20 11:24:00,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:24:00,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 7111 transitions. [2023-12-20 11:24:01,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 11:24:01,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:01,013 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] [2023-12-20 11:24:01,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 11:24:01,013 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:01,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:01,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1227474915, now seen corresponding path program 1 times [2023-12-20 11:24:01,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:01,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754208389] [2023-12-20 11:24:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:01,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:01,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:01,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:01,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:24:01,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754208389] [2023-12-20 11:24:01,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754208389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:01,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:24:01,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:24:01,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130850462] [2023-12-20 11:24:01,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:01,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:24:01,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:01,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:24:01,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:01,110 INFO L87 Difference]: Start difference. First operand 4191 states and 7111 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:24:02,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:02,101 INFO L93 Difference]: Finished difference Result 9281 states and 14962 transitions. [2023-12-20 11:24:02,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:24:02,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-20 11:24:02,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:02,150 INFO L225 Difference]: With dead ends: 9281 [2023-12-20 11:24:02,150 INFO L226 Difference]: Without dead ends: 7220 [2023-12-20 11:24:02,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:24:02,164 INFO L413 NwaCegarLoop]: 4147 mSDtfsCounter, 4448 mSDsluCounter, 16414 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 20561 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:02,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4462 Valid, 20561 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 11:24:02,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2023-12-20 11:24:02,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 6122. [2023-12-20 11:24:02,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 5537 states have (on average 1.6525194148455842) internal successors, (9150), 5571 states have internal predecessors, (9150), 353 states have call successors, (353), 198 states have call predecessors, (353), 230 states have return successors, (628), 384 states have call predecessors, (628), 353 states have call successors, (628) [2023-12-20 11:24:02,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 10131 transitions. [2023-12-20 11:24:02,403 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 10131 transitions. Word has length 71 [2023-12-20 11:24:02,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:02,403 INFO L495 AbstractCegarLoop]: Abstraction has 6122 states and 10131 transitions. [2023-12-20 11:24:02,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:24:02,404 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 10131 transitions. [2023-12-20 11:24:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 11:24:02,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:02,408 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] [2023-12-20 11:24:02,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 11:24:02,408 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:02,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:02,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1529152351, now seen corresponding path program 1 times [2023-12-20 11:24:02,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:02,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072305112] [2023-12-20 11:24:02,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:02,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:02,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:02,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:02,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:02,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:02,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:24:02,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:02,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072305112] [2023-12-20 11:24:02,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072305112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:02,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:24:02,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 11:24:02,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294006792] [2023-12-20 11:24:02,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:02,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 11:24:02,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:02,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 11:24:02,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 11:24:02,502 INFO L87 Difference]: Start difference. First operand 6122 states and 10131 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:24:03,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:03,581 INFO L93 Difference]: Finished difference Result 13461 states and 21515 transitions. [2023-12-20 11:24:03,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 11:24:03,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-20 11:24:03,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:03,606 INFO L225 Difference]: With dead ends: 13461 [2023-12-20 11:24:03,606 INFO L226 Difference]: Without dead ends: 9470 [2023-12-20 11:24:03,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-20 11:24:03,619 INFO L413 NwaCegarLoop]: 4178 mSDtfsCounter, 4606 mSDsluCounter, 12239 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4633 SdHoareTripleChecker+Valid, 16417 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:03,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4633 Valid, 16417 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 11:24:03,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2023-12-20 11:24:03,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 8136. [2023-12-20 11:24:03,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8136 states, 7244 states have (on average 1.6114025400331309) internal successors, (11673), 7311 states have internal predecessors, (11673), 542 states have call successors, (542), 300 states have call predecessors, (542), 348 states have return successors, (899), 556 states have call predecessors, (899), 542 states have call successors, (899) [2023-12-20 11:24:03,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 13114 transitions. [2023-12-20 11:24:03,870 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 13114 transitions. Word has length 71 [2023-12-20 11:24:03,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:03,871 INFO L495 AbstractCegarLoop]: Abstraction has 8136 states and 13114 transitions. [2023-12-20 11:24:03,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:24:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 13114 transitions. [2023-12-20 11:24:03,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 11:24:03,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:03,885 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:03,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 11:24:03,886 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:03,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:03,887 INFO L85 PathProgramCache]: Analyzing trace with hash -184989718, now seen corresponding path program 1 times [2023-12-20 11:24:03,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:03,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545209606] [2023-12-20 11:24:03,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:03,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:03,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:03,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:03,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:03,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:03,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:03,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:24:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:03,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 11:24:04,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-20 11:24:04,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:04,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545209606] [2023-12-20 11:24:04,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545209606] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:04,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993724504] [2023-12-20 11:24:04,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:04,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:04,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:04,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:04,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 11:24:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:04,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:24:04,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:04,196 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-20 11:24:04,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:04,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993724504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:04,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:04,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-20 11:24:04,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540664672] [2023-12-20 11:24:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:04,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:04,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:04,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:04,198 INFO L87 Difference]: Start difference. First operand 8136 states and 13114 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:24:04,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:04,522 INFO L93 Difference]: Finished difference Result 19993 states and 31344 transitions. [2023-12-20 11:24:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:24:04,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 115 [2023-12-20 11:24:04,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:04,562 INFO L225 Difference]: With dead ends: 19993 [2023-12-20 11:24:04,562 INFO L226 Difference]: Without dead ends: 13988 [2023-12-20 11:24:04,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:04,585 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4122 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4122 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:04,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4122 Valid, 4322 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:24:04,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13988 states. [2023-12-20 11:24:04,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13988 to 13936. [2023-12-20 11:24:04,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13936 states, 12184 states have (on average 1.5635259356533158) internal successors, (19050), 12316 states have internal predecessors, (19050), 1054 states have call successors, (1054), 600 states have call predecessors, (1054), 696 states have return successors, (1737), 1051 states have call predecessors, (1737), 1054 states have call successors, (1737) [2023-12-20 11:24:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13936 states to 13936 states and 21841 transitions. [2023-12-20 11:24:05,001 INFO L78 Accepts]: Start accepts. Automaton has 13936 states and 21841 transitions. Word has length 115 [2023-12-20 11:24:05,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:05,003 INFO L495 AbstractCegarLoop]: Abstraction has 13936 states and 21841 transitions. [2023-12-20 11:24:05,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:24:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 13936 states and 21841 transitions. [2023-12-20 11:24:05,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 11:24:05,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:05,024 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:05,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 11:24:05,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:05,230 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:05,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash -414310872, now seen corresponding path program 1 times [2023-12-20 11:24:05,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:05,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118754089] [2023-12-20 11:24:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:05,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:24:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 11:24:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-20 11:24:05,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:05,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118754089] [2023-12-20 11:24:05,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118754089] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:05,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670172112] [2023-12-20 11:24:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:05,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:05,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:05,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:05,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 11:24:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:05,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:24:05,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 11:24:05,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:05,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670172112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:05,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:05,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-20 11:24:05,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774366358] [2023-12-20 11:24:05,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:05,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:05,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:05,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:05,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:05,523 INFO L87 Difference]: Start difference. First operand 13936 states and 21841 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:24:06,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:06,254 INFO L93 Difference]: Finished difference Result 37241 states and 57483 transitions. [2023-12-20 11:24:06,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:24:06,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 115 [2023-12-20 11:24:06,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:06,341 INFO L225 Difference]: With dead ends: 37241 [2023-12-20 11:24:06,341 INFO L226 Difference]: Without dead ends: 25436 [2023-12-20 11:24:06,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:06,380 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4127 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4127 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:06,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4127 Valid, 4322 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:24:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25436 states. [2023-12-20 11:24:07,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25436 to 25334. [2023-12-20 11:24:07,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25334 states, 21888 states have (on average 1.5295138888888888) internal successors, (33478), 22150 states have internal predecessors, (33478), 2052 states have call successors, (2052), 1200 states have call predecessors, (2052), 1392 states have return successors, (3387), 2015 states have call predecessors, (3387), 2052 states have call successors, (3387) [2023-12-20 11:24:07,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25334 states to 25334 states and 38917 transitions. [2023-12-20 11:24:07,395 INFO L78 Accepts]: Start accepts. Automaton has 25334 states and 38917 transitions. Word has length 115 [2023-12-20 11:24:07,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:07,395 INFO L495 AbstractCegarLoop]: Abstraction has 25334 states and 38917 transitions. [2023-12-20 11:24:07,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:24:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand 25334 states and 38917 transitions. [2023-12-20 11:24:07,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 11:24:07,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:07,431 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:07,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-20 11:24:07,636 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,SelfDestructingSolverStorable9 [2023-12-20 11:24:07,636 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:07,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:07,637 INFO L85 PathProgramCache]: Analyzing trace with hash -530874710, now seen corresponding path program 1 times [2023-12-20 11:24:07,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:07,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437682008] [2023-12-20 11:24:07,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:07,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:24:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 11:24:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,753 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-20 11:24:07,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:07,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437682008] [2023-12-20 11:24:07,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437682008] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:07,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772736736] [2023-12-20 11:24:07,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:07,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:07,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:07,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:07,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 11:24:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:07,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:24:07,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-20 11:24:07,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:07,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772736736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:07,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:07,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-20 11:24:07,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727048336] [2023-12-20 11:24:07,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:07,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:07,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:07,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:07,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:07,879 INFO L87 Difference]: Start difference. First operand 25334 states and 38917 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-20 11:24:09,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:09,375 INFO L93 Difference]: Finished difference Result 70731 states and 108607 transitions. [2023-12-20 11:24:09,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:24:09,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2023-12-20 11:24:09,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:09,567 INFO L225 Difference]: With dead ends: 70731 [2023-12-20 11:24:09,567 INFO L226 Difference]: Without dead ends: 47529 [2023-12-20 11:24:09,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:09,613 INFO L413 NwaCegarLoop]: 4325 mSDtfsCounter, 182 mSDsluCounter, 4149 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 8474 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:09,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 8474 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:24:09,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47529 states. [2023-12-20 11:24:11,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47529 to 47529. [2023-12-20 11:24:11,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47529 states, 40776 states have (on average 1.5053217578968021) internal successors, (61381), 41231 states have internal predecessors, (61381), 3967 states have call successors, (3967), 2400 states have call predecessors, (3967), 2784 states have return successors, (7350), 3961 states have call predecessors, (7350), 3967 states have call successors, (7350) [2023-12-20 11:24:11,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47529 states to 47529 states and 72698 transitions. [2023-12-20 11:24:11,581 INFO L78 Accepts]: Start accepts. Automaton has 47529 states and 72698 transitions. Word has length 115 [2023-12-20 11:24:11,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:11,582 INFO L495 AbstractCegarLoop]: Abstraction has 47529 states and 72698 transitions. [2023-12-20 11:24:11,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-20 11:24:11,582 INFO L276 IsEmpty]: Start isEmpty. Operand 47529 states and 72698 transitions. [2023-12-20 11:24:11,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-20 11:24:11,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:11,719 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:11,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 11:24:11,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:11,925 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:11,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:11,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1353765659, now seen corresponding path program 1 times [2023-12-20 11:24:11,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:11,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959432930] [2023-12-20 11:24:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:11,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:11,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:11,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:12,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:12,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:24:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:12,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:12,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-20 11:24:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:12,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:12,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-20 11:24:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:12,042 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-20 11:24:12,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:12,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959432930] [2023-12-20 11:24:12,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959432930] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:12,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074690882] [2023-12-20 11:24:12,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:12,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:12,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:12,064 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:12,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 11:24:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:12,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:24:12,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:12,272 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-20 11:24:12,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:12,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074690882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:12,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:12,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-20 11:24:12,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3557799] [2023-12-20 11:24:12,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:12,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:12,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:12,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:12,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:12,275 INFO L87 Difference]: Start difference. First operand 47529 states and 72698 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-20 11:24:15,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:15,186 INFO L93 Difference]: Finished difference Result 136273 states and 208325 transitions. [2023-12-20 11:24:15,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:24:15,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 148 [2023-12-20 11:24:15,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:15,676 INFO L225 Difference]: With dead ends: 136273 [2023-12-20 11:24:15,676 INFO L226 Difference]: Without dead ends: 90881 [2023-12-20 11:24:15,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:15,765 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 4081 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4081 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:15,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4081 Valid, 4331 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:24:15,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90881 states. [2023-12-20 11:24:18,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90881 to 90479. [2023-12-20 11:24:19,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90479 states, 77674 states have (on average 1.4913484563689265) internal successors, (115839), 78581 states have internal predecessors, (115839), 7381 states have call successors, (7381), 4654 states have call predecessors, (7381), 5422 states have return successors, (13774), 7307 states have call predecessors, (13774), 7381 states have call successors, (13774) [2023-12-20 11:24:19,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90479 states to 90479 states and 136994 transitions. [2023-12-20 11:24:19,290 INFO L78 Accepts]: Start accepts. Automaton has 90479 states and 136994 transitions. Word has length 148 [2023-12-20 11:24:19,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:19,291 INFO L495 AbstractCegarLoop]: Abstraction has 90479 states and 136994 transitions. [2023-12-20 11:24:19,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-20 11:24:19,291 INFO L276 IsEmpty]: Start isEmpty. Operand 90479 states and 136994 transitions. [2023-12-20 11:24:19,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-20 11:24:19,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:19,700 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:19,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 11:24:19,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:19,907 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:19,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1877033498, now seen corresponding path program 1 times [2023-12-20 11:24:19,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:19,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779358533] [2023-12-20 11:24:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:19,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:19,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:19,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:19,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 11:24:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-20 11:24:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 11:24:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 11:24:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-20 11:24:20,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:20,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779358533] [2023-12-20 11:24:20,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779358533] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:20,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730259274] [2023-12-20 11:24:20,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:20,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:20,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:20,026 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:20,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 11:24:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:20,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:24:20,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-20 11:24:20,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:20,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730259274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:20,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:20,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-20 11:24:20,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347449996] [2023-12-20 11:24:20,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:20,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:20,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:20,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:20,212 INFO L87 Difference]: Start difference. First operand 90479 states and 136994 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-20 11:24:22,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:22,867 INFO L93 Difference]: Finished difference Result 137875 states and 209245 transitions. [2023-12-20 11:24:22,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:24:22,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 165 [2023-12-20 11:24:22,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:23,233 INFO L225 Difference]: With dead ends: 137875 [2023-12-20 11:24:23,233 INFO L226 Difference]: Without dead ends: 76999 [2023-12-20 11:24:23,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:23,316 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 4101 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 4182 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:23,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4101 Valid, 4182 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:24:23,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76999 states. [2023-12-20 11:24:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76999 to 55391. [2023-12-20 11:24:25,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55391 states, 47802 states have (on average 1.4538094640391614) internal successors, (69495), 48265 states have internal predecessors, (69495), 4297 states have call successors, (4297), 2906 states have call predecessors, (4297), 3290 states have return successors, (6802), 4251 states have call predecessors, (6802), 4297 states have call successors, (6802) [2023-12-20 11:24:25,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55391 states to 55391 states and 80594 transitions. [2023-12-20 11:24:25,556 INFO L78 Accepts]: Start accepts. Automaton has 55391 states and 80594 transitions. Word has length 165 [2023-12-20 11:24:25,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:25,557 INFO L495 AbstractCegarLoop]: Abstraction has 55391 states and 80594 transitions. [2023-12-20 11:24:25,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-20 11:24:25,557 INFO L276 IsEmpty]: Start isEmpty. Operand 55391 states and 80594 transitions. [2023-12-20 11:24:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-20 11:24:25,738 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:25,738 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:25,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 11:24:25,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-20 11:24:25,945 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:25,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:25,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1950429033, now seen corresponding path program 1 times [2023-12-20 11:24:25,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:25,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419034073] [2023-12-20 11:24:25,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:25,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-20 11:24:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-20 11:24:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-20 11:24:26,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-20 11:24:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,111 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-20 11:24:26,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:26,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419034073] [2023-12-20 11:24:26,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419034073] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:26,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574420730] [2023-12-20 11:24:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:26,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:26,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:26,113 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:26,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 11:24:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:26,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 11:24:26,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:26,275 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-20 11:24:26,275 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:26,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574420730] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:26,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:26,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-20 11:24:26,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614934050] [2023-12-20 11:24:26,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:26,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:26,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:26,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:26,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:26,277 INFO L87 Difference]: Start difference. First operand 55391 states and 80594 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-20 11:24:28,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:28,097 INFO L93 Difference]: Finished difference Result 95370 states and 137683 transitions. [2023-12-20 11:24:28,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:24:28,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 165 [2023-12-20 11:24:28,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:28,238 INFO L225 Difference]: With dead ends: 95370 [2023-12-20 11:24:28,238 INFO L226 Difference]: Without dead ends: 58865 [2023-12-20 11:24:28,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:28,283 INFO L413 NwaCegarLoop]: 4191 mSDtfsCounter, 4108 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4108 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:28,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4108 Valid, 4371 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:24:28,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58865 states. [2023-12-20 11:24:30,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58865 to 58681. [2023-12-20 11:24:30,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58681 states, 50744 states have (on average 1.42852356928898) internal successors, (72489), 51207 states have internal predecessors, (72489), 4395 states have call successors, (4395), 3156 states have call predecessors, (4395), 3540 states have return successors, (7150), 4349 states have call predecessors, (7150), 4395 states have call successors, (7150) [2023-12-20 11:24:30,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58681 states to 58681 states and 84034 transitions. [2023-12-20 11:24:30,467 INFO L78 Accepts]: Start accepts. Automaton has 58681 states and 84034 transitions. Word has length 165 [2023-12-20 11:24:30,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:30,467 INFO L495 AbstractCegarLoop]: Abstraction has 58681 states and 84034 transitions. [2023-12-20 11:24:30,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-20 11:24:30,467 INFO L276 IsEmpty]: Start isEmpty. Operand 58681 states and 84034 transitions. [2023-12-20 11:24:30,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 11:24:30,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:30,554 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:30,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 11:24:30,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:30,776 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:30,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:30,776 INFO L85 PathProgramCache]: Analyzing trace with hash 746415630, now seen corresponding path program 1 times [2023-12-20 11:24:30,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:30,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324210181] [2023-12-20 11:24:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:30,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:24:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 11:24:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-20 11:24:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 11:24:30,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:30,940 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-20 11:24:30,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:30,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324210181] [2023-12-20 11:24:30,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324210181] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:30,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793193117] [2023-12-20 11:24:30,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:30,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:30,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:30,958 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:30,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 11:24:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:31,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:24:31,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-20 11:24:31,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:31,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793193117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:31,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:31,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-20 11:24:31,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384702815] [2023-12-20 11:24:31,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:31,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:31,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:31,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:31,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:31,099 INFO L87 Difference]: Start difference. First operand 58681 states and 84034 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-20 11:24:34,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:34,376 INFO L93 Difference]: Finished difference Result 169041 states and 242726 transitions. [2023-12-20 11:24:34,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:24:34,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 166 [2023-12-20 11:24:34,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:34,926 INFO L225 Difference]: With dead ends: 169041 [2023-12-20 11:24:34,927 INFO L226 Difference]: Without dead ends: 112499 [2023-12-20 11:24:35,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:35,007 INFO L413 NwaCegarLoop]: 4319 mSDtfsCounter, 180 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 8463 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:35,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 8463 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:24:35,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112499 states. [2023-12-20 11:24:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112499 to 112389. [2023-12-20 11:24:39,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112389 states, 97046 states have (on average 1.4113616223234342) internal successors, (136967), 97971 states have internal predecessors, (136967), 8417 states have call successors, (8417), 6156 states have call predecessors, (8417), 6924 states have return successors, (15924), 8325 states have call predecessors, (15924), 8417 states have call successors, (15924) [2023-12-20 11:24:39,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112389 states to 112389 states and 161308 transitions. [2023-12-20 11:24:39,493 INFO L78 Accepts]: Start accepts. Automaton has 112389 states and 161308 transitions. Word has length 166 [2023-12-20 11:24:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:39,493 INFO L495 AbstractCegarLoop]: Abstraction has 112389 states and 161308 transitions. [2023-12-20 11:24:39,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-20 11:24:39,493 INFO L276 IsEmpty]: Start isEmpty. Operand 112389 states and 161308 transitions. [2023-12-20 11:24:39,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 11:24:39,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:39,668 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:39,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 11:24:39,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:39,873 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:39,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:39,874 INFO L85 PathProgramCache]: Analyzing trace with hash -986607631, now seen corresponding path program 1 times [2023-12-20 11:24:39,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:39,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746292191] [2023-12-20 11:24:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:39,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:40,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:24:40,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 11:24:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-20 11:24:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 11:24:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,069 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-20 11:24:40,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:40,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746292191] [2023-12-20 11:24:40,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746292191] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:40,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379596977] [2023-12-20 11:24:40,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:40,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:40,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:40,071 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:40,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 11:24:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:40,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:24:40,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-20 11:24:40,278 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:40,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379596977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:40,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:40,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-20 11:24:40,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580294954] [2023-12-20 11:24:40,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:40,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:40,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:40,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:40,280 INFO L87 Difference]: Start difference. First operand 112389 states and 161308 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-20 11:24:43,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:43,712 INFO L93 Difference]: Finished difference Result 186439 states and 270979 transitions. [2023-12-20 11:24:43,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:24:43,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 166 [2023-12-20 11:24:43,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:44,042 INFO L225 Difference]: With dead ends: 186439 [2023-12-20 11:24:44,043 INFO L226 Difference]: Without dead ends: 97401 [2023-12-20 11:24:44,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:44,161 INFO L413 NwaCegarLoop]: 4145 mSDtfsCounter, 4097 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4097 SdHoareTripleChecker+Valid, 4180 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:44,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4097 Valid, 4180 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:24:44,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97401 states. [2023-12-20 11:24:47,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97401 to 71525. [2023-12-20 11:24:47,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71525 states, 62082 states have (on average 1.3804806546180857) internal successors, (85703), 62563 states have internal predecessors, (85703), 5125 states have call successors, (5125), 3932 states have call predecessors, (5125), 4316 states have return successors, (8886), 5061 states have call predecessors, (8886), 5125 states have call successors, (8886) [2023-12-20 11:24:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71525 states to 71525 states and 99714 transitions. [2023-12-20 11:24:47,340 INFO L78 Accepts]: Start accepts. Automaton has 71525 states and 99714 transitions. Word has length 166 [2023-12-20 11:24:47,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:47,341 INFO L495 AbstractCegarLoop]: Abstraction has 71525 states and 99714 transitions. [2023-12-20 11:24:47,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-20 11:24:47,341 INFO L276 IsEmpty]: Start isEmpty. Operand 71525 states and 99714 transitions. [2023-12-20 11:24:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 11:24:47,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:47,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:47,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-20 11:24:47,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-20 11:24:47,634 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:47,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:47,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1379321810, now seen corresponding path program 1 times [2023-12-20 11:24:47,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683849484] [2023-12-20 11:24:47,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:47,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:24:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 11:24:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-20 11:24:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 11:24:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-20 11:24:47,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:47,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683849484] [2023-12-20 11:24:47,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683849484] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:47,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460946631] [2023-12-20 11:24:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:47,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:47,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:47,728 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:47,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 11:24:47,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:47,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:24:47,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-20 11:24:47,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:47,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460946631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:47,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:47,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-20 11:24:47,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088273199] [2023-12-20 11:24:47,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:47,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:47,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:47,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:47,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:47,875 INFO L87 Difference]: Start difference. First operand 71525 states and 99714 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-20 11:24:52,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:24:52,362 INFO L93 Difference]: Finished difference Result 201057 states and 282610 transitions. [2023-12-20 11:24:52,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:24:52,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 166 [2023-12-20 11:24:52,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:24:52,772 INFO L225 Difference]: With dead ends: 201057 [2023-12-20 11:24:52,772 INFO L226 Difference]: Without dead ends: 131683 [2023-12-20 11:24:52,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:52,879 INFO L413 NwaCegarLoop]: 4314 mSDtfsCounter, 166 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 8457 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:24:52,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 8457 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:24:52,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131683 states. [2023-12-20 11:24:57,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131683 to 131681. [2023-12-20 11:24:57,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131681 states, 113758 states have (on average 1.3656270328240652) internal successors, (155351), 114719 states have internal predecessors, (155351), 9769 states have call successors, (9769), 7384 states have call predecessors, (9769), 8152 states have return successors, (20332), 9641 states have call predecessors, (20332), 9769 states have call successors, (20332) [2023-12-20 11:24:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131681 states to 131681 states and 185452 transitions. [2023-12-20 11:24:58,284 INFO L78 Accepts]: Start accepts. Automaton has 131681 states and 185452 transitions. Word has length 166 [2023-12-20 11:24:58,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:24:58,284 INFO L495 AbstractCegarLoop]: Abstraction has 131681 states and 185452 transitions. [2023-12-20 11:24:58,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-20 11:24:58,285 INFO L276 IsEmpty]: Start isEmpty. Operand 131681 states and 185452 transitions. [2023-12-20 11:24:58,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-20 11:24:58,458 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:24:58,458 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:24:58,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 11:24:58,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-20 11:24:58,660 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:24:58,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:24:58,660 INFO L85 PathProgramCache]: Analyzing trace with hash 436448517, now seen corresponding path program 1 times [2023-12-20 11:24:58,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:24:58,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646436890] [2023-12-20 11:24:58,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:58,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:24:58,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:58,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:24:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-20 11:24:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:58,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-20 11:24:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-20 11:24:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:58,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-20 11:24:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:58,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:24:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:58,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:58,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-20 11:24:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-20 11:24:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:59,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:24:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-20 11:24:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:59,107 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-20 11:24:59,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:24:59,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646436890] [2023-12-20 11:24:59,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646436890] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:24:59,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495830871] [2023-12-20 11:24:59,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:24:59,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:24:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:24:59,121 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:24:59,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 11:24:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:24:59,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:24:59,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:24:59,339 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-20 11:24:59,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:24:59,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495830871] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:24:59,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:24:59,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-20 11:24:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512884558] [2023-12-20 11:24:59,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:24:59,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:24:59,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:24:59,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:24:59,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:24:59,340 INFO L87 Difference]: Start difference. First operand 131681 states and 185452 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-20 11:25:07,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:25:07,876 INFO L93 Difference]: Finished difference Result 372281 states and 531356 transitions. [2023-12-20 11:25:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:25:07,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 166 [2023-12-20 11:25:07,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:25:09,100 INFO L225 Difference]: With dead ends: 372281 [2023-12-20 11:25:09,100 INFO L226 Difference]: Without dead ends: 242767 [2023-12-20 11:25:09,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:25:09,480 INFO L413 NwaCegarLoop]: 4314 mSDtfsCounter, 168 mSDsluCounter, 4141 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 8455 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:25:09,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 8455 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:25:09,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242767 states.