./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e574f019d5235e99746db8bee675f73f85742bea09499f7933172a6790260b16 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 00:54:31,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 00:54:31,688 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 00:54:31,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 00:54:31,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 00:54:31,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 00:54:31,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 00:54:31,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 00:54:31,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 00:54:31,733 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 00:54:31,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 00:54:31,734 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 00:54:31,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 00:54:31,735 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 00:54:31,736 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 00:54:31,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 00:54:31,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 00:54:31,737 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 00:54:31,737 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 00:54:31,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 00:54:31,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 00:54:31,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 00:54:31,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 00:54:31,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 00:54:31,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 00:54:31,742 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 00:54:31,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 00:54:31,742 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 00:54:31,743 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 00:54:31,743 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 00:54:31,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 00:54:31,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 00:54:31,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:54:31,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 00:54:31,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 00:54:31,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 00:54:31,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 00:54:31,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 00:54:31,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 00:54:31,754 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 00:54:31,754 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 00:54:31,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 00:54:31,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e574f019d5235e99746db8bee675f73f85742bea09499f7933172a6790260b16 [2024-11-10 00:54:32,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 00:54:32,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 00:54:32,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 00:54:32,051 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 00:54:32,052 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 00:54:32,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c [2024-11-10 00:54:33,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 00:54:33,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 00:54:33,938 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c [2024-11-10 00:54:33,978 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d70c40f70/e4675f7cc3f04040a0956b4e64845f6d/FLAG85d832389 [2024-11-10 00:54:33,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d70c40f70/e4675f7cc3f04040a0956b4e64845f6d [2024-11-10 00:54:33,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 00:54:33,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 00:54:34,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 00:54:34,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 00:54:34,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 00:54:34,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:54:33" (1/1) ... [2024-11-10 00:54:34,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6103a695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:34, skipping insertion in model container [2024-11-10 00:54:34,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:54:33" (1/1) ... [2024-11-10 00:54:34,123 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 00:54:34,508 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[11640,11653] [2024-11-10 00:54:34,567 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[14457,14470] [2024-11-10 00:54:35,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:54:35,326 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 00:54:35,370 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[11640,11653] [2024-11-10 00:54:35,377 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[14457,14470] [2024-11-10 00:54:35,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 00:54:35,805 INFO L204 MainTranslator]: Completed translation [2024-11-10 00:54:35,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35 WrapperNode [2024-11-10 00:54:35,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 00:54:35,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 00:54:35,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 00:54:35,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 00:54:35,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:35,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,233 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5097 [2024-11-10 00:54:36,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 00:54:36,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 00:54:36,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 00:54:36,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 00:54:36,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,492 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]. [2024-11-10 00:54:36,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,656 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 00:54:36,786 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 00:54:36,786 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 00:54:36,787 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 00:54:36,787 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (1/1) ... [2024-11-10 00:54:36,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 00:54:36,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:54:36,822 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) [2024-11-10 00:54:36,863 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 [2024-11-10 00:54:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 00:54:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 00:54:36,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 00:54:36,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 00:54:37,045 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 00:54:37,047 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 00:54:42,397 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2127: havoc calculate_output_#t~ret38#1; [2024-11-10 00:54:42,398 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3606: havoc calculate_output2_#t~ret39#1; [2024-11-10 00:54:42,398 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L5096: havoc calculate_output3_#t~ret40#1; [2024-11-10 00:54:42,743 INFO L? ?]: Removed 2081 outVars from TransFormulas that were not future-live. [2024-11-10 00:54:42,743 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 00:54:42,783 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 00:54:42,783 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 00:54:42,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:54:42 BoogieIcfgContainer [2024-11-10 00:54:42,784 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 00:54:42,787 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 00:54:42,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 00:54:42,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 00:54:42,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 12:54:33" (1/3) ... [2024-11-10 00:54:42,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109c906b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:54:42, skipping insertion in model container [2024-11-10 00:54:42,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:54:35" (2/3) ... [2024-11-10 00:54:42,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@109c906b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 12:54:42, skipping insertion in model container [2024-11-10 00:54:42,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 12:54:42" (3/3) ... [2024-11-10 00:54:42,796 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c [2024-11-10 00:54:42,813 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 00:54:42,814 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 00:54:42,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 00:54:42,923 INFO L333 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, 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;@29764d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 00:54:42,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-10 00:54:42,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 906 states, 903 states have (on average 2.6511627906976742) internal successors, (2394), 905 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:42,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-10 00:54:42,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:42,948 INFO L215 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] [2024-11-10 00:54:42,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:42,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1920983549, now seen corresponding path program 1 times [2024-11-10 00:54:42,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:42,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377005408] [2024-11-10 00:54:42,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:42,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:43,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:43,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377005408] [2024-11-10 00:54:43,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377005408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:43,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:43,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 00:54:43,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326079154] [2024-11-10 00:54:43,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:43,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:54:43,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:43,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:54:43,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:43,321 INFO L87 Difference]: Start difference. First operand has 906 states, 903 states have (on average 2.6511627906976742) internal successors, (2394), 905 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:48,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:48,229 INFO L93 Difference]: Finished difference Result 2545 states and 6915 transitions. [2024-11-10 00:54:48,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:54:48,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-10 00:54:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:48,264 INFO L225 Difference]: With dead ends: 2545 [2024-11-10 00:54:48,264 INFO L226 Difference]: Without dead ends: 1590 [2024-11-10 00:54:48,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:48,281 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 1618 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3697 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 4393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 3697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:48,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 672 Invalid, 4393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 3697 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-10 00:54:48,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2024-11-10 00:54:48,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1590. [2024-11-10 00:54:48,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1588 states have (on average 2.467884130982368) internal successors, (3919), 1589 states have internal predecessors, (3919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:48,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 3919 transitions. [2024-11-10 00:54:48,404 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 3919 transitions. Word has length 26 [2024-11-10 00:54:48,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:48,404 INFO L471 AbstractCegarLoop]: Abstraction has 1590 states and 3919 transitions. [2024-11-10 00:54:48,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:48,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 3919 transitions. [2024-11-10 00:54:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-10 00:54:48,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:48,406 INFO L215 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] [2024-11-10 00:54:48,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 00:54:48,407 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:48,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:48,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1417825177, now seen corresponding path program 1 times [2024-11-10 00:54:48,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:48,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757966874] [2024-11-10 00:54:48,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:48,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:48,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:48,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:48,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757966874] [2024-11-10 00:54:48,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757966874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:48,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:48,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 00:54:48,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968894561] [2024-11-10 00:54:48,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:48,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 00:54:48,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:48,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 00:54:48,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:54:48,616 INFO L87 Difference]: Start difference. First operand 1590 states and 3919 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:48,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:48,766 INFO L93 Difference]: Finished difference Result 1639 states and 3993 transitions. [2024-11-10 00:54:48,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 00:54:48,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-10 00:54:48,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:48,775 INFO L225 Difference]: With dead ends: 1639 [2024-11-10 00:54:48,775 INFO L226 Difference]: Without dead ends: 1590 [2024-11-10 00:54:48,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 00:54:48,778 INFO L432 NwaCegarLoop]: 2257 mSDtfsCounter, 0 mSDsluCounter, 6735 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8992 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:48,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8992 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:54:48,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2024-11-10 00:54:48,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1590. [2024-11-10 00:54:48,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1588 states have (on average 2.4483627204030225) internal successors, (3888), 1589 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:48,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 3888 transitions. [2024-11-10 00:54:48,823 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 3888 transitions. Word has length 26 [2024-11-10 00:54:48,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:48,824 INFO L471 AbstractCegarLoop]: Abstraction has 1590 states and 3888 transitions. [2024-11-10 00:54:48,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:48,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 3888 transitions. [2024-11-10 00:54:48,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-10 00:54:48,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:48,828 INFO L215 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] [2024-11-10 00:54:48,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 00:54:48,829 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:48,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:48,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2138475845, now seen corresponding path program 1 times [2024-11-10 00:54:48,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:48,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517477683] [2024-11-10 00:54:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:48,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:49,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:49,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517477683] [2024-11-10 00:54:49,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517477683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:49,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:49,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:54:49,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358513876] [2024-11-10 00:54:49,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:49,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:54:49,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:49,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:54:49,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:54:49,095 INFO L87 Difference]: Start difference. First operand 1590 states and 3888 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:49,371 INFO L93 Difference]: Finished difference Result 2040 states and 4588 transitions. [2024-11-10 00:54:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 00:54:49,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-10 00:54:49,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:49,383 INFO L225 Difference]: With dead ends: 2040 [2024-11-10 00:54:49,383 INFO L226 Difference]: Without dead ends: 1995 [2024-11-10 00:54:49,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-10 00:54:49,386 INFO L432 NwaCegarLoop]: 2222 mSDtfsCounter, 11386 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11386 SdHoareTripleChecker+Valid, 3378 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:49,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11386 Valid, 3378 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:54:49,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1995 states. [2024-11-10 00:54:49,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1995 to 1632. [2024-11-10 00:54:49,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1630 states have (on average 2.4257668711656444) internal successors, (3954), 1631 states have internal predecessors, (3954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:49,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 3954 transitions. [2024-11-10 00:54:49,432 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 3954 transitions. Word has length 56 [2024-11-10 00:54:49,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:49,432 INFO L471 AbstractCegarLoop]: Abstraction has 1632 states and 3954 transitions. [2024-11-10 00:54:49,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:49,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 3954 transitions. [2024-11-10 00:54:49,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-10 00:54:49,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:49,435 INFO L215 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] [2024-11-10 00:54:49,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 00:54:49,435 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:49,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:49,436 INFO L85 PathProgramCache]: Analyzing trace with hash 208440989, now seen corresponding path program 1 times [2024-11-10 00:54:49,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:49,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435719795] [2024-11-10 00:54:49,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:49,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:49,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:49,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435719795] [2024-11-10 00:54:49,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435719795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:49,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:49,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:54:49,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855498718] [2024-11-10 00:54:49,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:49,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:54:49,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:49,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:54:49,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:54:49,800 INFO L87 Difference]: Start difference. First operand 1632 states and 3954 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:50,008 INFO L93 Difference]: Finished difference Result 1722 states and 4092 transitions. [2024-11-10 00:54:50,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:54:50,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-10 00:54:50,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:50,018 INFO L225 Difference]: With dead ends: 1722 [2024-11-10 00:54:50,018 INFO L226 Difference]: Without dead ends: 1635 [2024-11-10 00:54:50,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-10 00:54:50,020 INFO L432 NwaCegarLoop]: 2221 mSDtfsCounter, 6531 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6531 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:50,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6531 Valid, 2486 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:54:50,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2024-11-10 00:54:50,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1632. [2024-11-10 00:54:50,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1630 states have (on average 2.425153374233129) internal successors, (3953), 1631 states have internal predecessors, (3953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 3953 transitions. [2024-11-10 00:54:50,061 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 3953 transitions. Word has length 58 [2024-11-10 00:54:50,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:50,061 INFO L471 AbstractCegarLoop]: Abstraction has 1632 states and 3953 transitions. [2024-11-10 00:54:50,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 3953 transitions. [2024-11-10 00:54:50,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-10 00:54:50,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:50,063 INFO L215 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] [2024-11-10 00:54:50,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 00:54:50,064 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:50,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:50,065 INFO L85 PathProgramCache]: Analyzing trace with hash -404444728, now seen corresponding path program 1 times [2024-11-10 00:54:50,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:50,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160978096] [2024-11-10 00:54:50,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:50,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:50,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:50,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160978096] [2024-11-10 00:54:50,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160978096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:50,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:50,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:54:50,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527356277] [2024-11-10 00:54:50,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:50,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:54:50,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:50,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:54:50,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:50,129 INFO L87 Difference]: Start difference. First operand 1632 states and 3953 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:50,182 INFO L93 Difference]: Finished difference Result 1794 states and 4203 transitions. [2024-11-10 00:54:50,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:54:50,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-10 00:54:50,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:50,190 INFO L225 Difference]: With dead ends: 1794 [2024-11-10 00:54:50,191 INFO L226 Difference]: Without dead ends: 1707 [2024-11-10 00:54:50,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:50,193 INFO L432 NwaCegarLoop]: 2225 mSDtfsCounter, 2166 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:50,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 2290 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:54:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2024-11-10 00:54:50,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1704. [2024-11-10 00:54:50,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1702 states have (on average 2.3871915393654524) internal successors, (4063), 1703 states have internal predecessors, (4063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 4063 transitions. [2024-11-10 00:54:50,236 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 4063 transitions. Word has length 59 [2024-11-10 00:54:50,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:50,237 INFO L471 AbstractCegarLoop]: Abstraction has 1704 states and 4063 transitions. [2024-11-10 00:54:50,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 4063 transitions. [2024-11-10 00:54:50,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 00:54:50,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:50,238 INFO L215 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] [2024-11-10 00:54:50,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 00:54:50,238 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:50,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:50,239 INFO L85 PathProgramCache]: Analyzing trace with hash 788028767, now seen corresponding path program 1 times [2024-11-10 00:54:50,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:50,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154099117] [2024-11-10 00:54:50,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:50,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:50,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154099117] [2024-11-10 00:54:50,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154099117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:50,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:50,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:54:50,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541327867] [2024-11-10 00:54:50,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:50,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:54:50,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:54:50,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:50,304 INFO L87 Difference]: Start difference. First operand 1704 states and 4063 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:50,345 INFO L93 Difference]: Finished difference Result 2006 states and 4525 transitions. [2024-11-10 00:54:50,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:54:50,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-10 00:54:50,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:50,355 INFO L225 Difference]: With dead ends: 2006 [2024-11-10 00:54:50,355 INFO L226 Difference]: Without dead ends: 1847 [2024-11-10 00:54:50,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:50,358 INFO L432 NwaCegarLoop]: 2276 mSDtfsCounter, 2178 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 2351 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:50,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 2351 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:54:50,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1847 states. [2024-11-10 00:54:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1847 to 1844. [2024-11-10 00:54:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1842 states have (on average 2.3203040173724214) internal successors, (4274), 1843 states have internal predecessors, (4274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 4274 transitions. [2024-11-10 00:54:50,407 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 4274 transitions. Word has length 60 [2024-11-10 00:54:50,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:50,407 INFO L471 AbstractCegarLoop]: Abstraction has 1844 states and 4274 transitions. [2024-11-10 00:54:50,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 4274 transitions. [2024-11-10 00:54:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 00:54:50,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:50,409 INFO L215 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] [2024-11-10 00:54:50,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 00:54:50,409 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:50,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash -213380961, now seen corresponding path program 1 times [2024-11-10 00:54:50,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:50,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365576635] [2024-11-10 00:54:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:50,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:50,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:50,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365576635] [2024-11-10 00:54:50,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365576635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:50,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:50,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:54:50,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131902128] [2024-11-10 00:54:50,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:50,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:54:50,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:50,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:54:50,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:50,474 INFO L87 Difference]: Start difference. First operand 1844 states and 4274 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:50,573 INFO L93 Difference]: Finished difference Result 2410 states and 5130 transitions. [2024-11-10 00:54:50,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:54:50,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-10 00:54:50,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:50,586 INFO L225 Difference]: With dead ends: 2410 [2024-11-10 00:54:50,586 INFO L226 Difference]: Without dead ends: 2111 [2024-11-10 00:54:50,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:50,589 INFO L432 NwaCegarLoop]: 2274 mSDtfsCounter, 2176 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:50,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 2353 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:54:50,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2024-11-10 00:54:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 2108. [2024-11-10 00:54:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2108 states, 2106 states have (on average 2.214624881291548) internal successors, (4664), 2107 states have internal predecessors, (4664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 4664 transitions. [2024-11-10 00:54:50,652 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 4664 transitions. Word has length 60 [2024-11-10 00:54:50,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:50,653 INFO L471 AbstractCegarLoop]: Abstraction has 2108 states and 4664 transitions. [2024-11-10 00:54:50,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 4664 transitions. [2024-11-10 00:54:50,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 00:54:50,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:50,656 INFO L215 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] [2024-11-10 00:54:50,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 00:54:50,656 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:50,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:50,657 INFO L85 PathProgramCache]: Analyzing trace with hash -227830817, now seen corresponding path program 1 times [2024-11-10 00:54:50,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:50,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868245873] [2024-11-10 00:54:50,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:50,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:50,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:50,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868245873] [2024-11-10 00:54:50,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868245873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:50,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:50,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:54:50,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847581254] [2024-11-10 00:54:50,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:50,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:54:50,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:50,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:54:50,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:50,739 INFO L87 Difference]: Start difference. First operand 2108 states and 4664 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:50,799 INFO L93 Difference]: Finished difference Result 3170 states and 6244 transitions. [2024-11-10 00:54:50,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:54:50,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-10 00:54:50,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:50,812 INFO L225 Difference]: With dead ends: 3170 [2024-11-10 00:54:50,812 INFO L226 Difference]: Without dead ends: 2607 [2024-11-10 00:54:50,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:50,815 INFO L432 NwaCegarLoop]: 2272 mSDtfsCounter, 2174 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:50,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 2355 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:54:50,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2024-11-10 00:54:50,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2604. [2024-11-10 00:54:50,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2604 states, 2602 states have (on average 2.067640276710223) internal successors, (5380), 2603 states have internal predecessors, (5380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2604 states to 2604 states and 5380 transitions. [2024-11-10 00:54:50,898 INFO L78 Accepts]: Start accepts. Automaton has 2604 states and 5380 transitions. Word has length 60 [2024-11-10 00:54:50,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:50,899 INFO L471 AbstractCegarLoop]: Abstraction has 2604 states and 5380 transitions. [2024-11-10 00:54:50,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:50,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2604 states and 5380 transitions. [2024-11-10 00:54:50,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 00:54:50,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:50,900 INFO L215 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] [2024-11-10 00:54:50,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 00:54:50,900 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:50,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:50,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1863771935, now seen corresponding path program 1 times [2024-11-10 00:54:50,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:50,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737425581] [2024-11-10 00:54:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:50,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:50,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:50,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:50,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737425581] [2024-11-10 00:54:50,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737425581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:50,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:50,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:54:50,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062726093] [2024-11-10 00:54:50,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:50,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:54:50,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:50,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:54:50,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:50,981 INFO L87 Difference]: Start difference. First operand 2604 states and 5380 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:51,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:51,059 INFO L93 Difference]: Finished difference Result 4594 states and 8280 transitions. [2024-11-10 00:54:51,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:54:51,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-10 00:54:51,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:51,075 INFO L225 Difference]: With dead ends: 4594 [2024-11-10 00:54:51,075 INFO L226 Difference]: Without dead ends: 3535 [2024-11-10 00:54:51,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:51,079 INFO L432 NwaCegarLoop]: 2270 mSDtfsCounter, 2172 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:51,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 2357 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:54:51,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2024-11-10 00:54:51,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3532. [2024-11-10 00:54:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 3530 states have (on average 1.8934844192634561) internal successors, (6684), 3531 states have internal predecessors, (6684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:51,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 6684 transitions. [2024-11-10 00:54:51,202 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 6684 transitions. Word has length 60 [2024-11-10 00:54:51,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:51,203 INFO L471 AbstractCegarLoop]: Abstraction has 3532 states and 6684 transitions. [2024-11-10 00:54:51,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:51,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 6684 transitions. [2024-11-10 00:54:51,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 00:54:51,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:51,204 INFO L215 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] [2024-11-10 00:54:51,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 00:54:51,204 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:51,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:51,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1339494880, now seen corresponding path program 1 times [2024-11-10 00:54:51,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:51,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261407068] [2024-11-10 00:54:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:51,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:51,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:51,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261407068] [2024-11-10 00:54:51,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261407068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:51,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:51,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 00:54:51,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827490136] [2024-11-10 00:54:51,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:51,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 00:54:51,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:51,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 00:54:51,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:54:51,519 INFO L87 Difference]: Start difference. First operand 3532 states and 6684 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:51,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:51,660 INFO L93 Difference]: Finished difference Result 3631 states and 6814 transitions. [2024-11-10 00:54:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 00:54:51,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-10 00:54:51,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:51,674 INFO L225 Difference]: With dead ends: 3631 [2024-11-10 00:54:51,675 INFO L226 Difference]: Without dead ends: 3628 [2024-11-10 00:54:51,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-10 00:54:51,678 INFO L432 NwaCegarLoop]: 2222 mSDtfsCounter, 0 mSDsluCounter, 13319 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15541 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:51,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15541 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:54:51,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3628 states. [2024-11-10 00:54:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3628 to 3628. [2024-11-10 00:54:51,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 3626 states have (on average 1.8654164368450084) internal successors, (6764), 3627 states have internal predecessors, (6764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:51,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 6764 transitions. [2024-11-10 00:54:51,801 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 6764 transitions. Word has length 60 [2024-11-10 00:54:51,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:51,802 INFO L471 AbstractCegarLoop]: Abstraction has 3628 states and 6764 transitions. [2024-11-10 00:54:51,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:51,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 6764 transitions. [2024-11-10 00:54:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-10 00:54:51,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:51,804 INFO L215 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] [2024-11-10 00:54:51,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 00:54:51,804 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:51,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:51,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1070103071, now seen corresponding path program 1 times [2024-11-10 00:54:51,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:51,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567330948] [2024-11-10 00:54:51,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:51,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:51,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:51,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567330948] [2024-11-10 00:54:51,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567330948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:51,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:51,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:54:51,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051161556] [2024-11-10 00:54:51,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:51,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:54:51,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:51,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:54:51,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:51,985 INFO L87 Difference]: Start difference. First operand 3628 states and 6764 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:52,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:52,106 INFO L93 Difference]: Finished difference Result 5877 states and 9972 transitions. [2024-11-10 00:54:52,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:54:52,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-10 00:54:52,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:52,121 INFO L225 Difference]: With dead ends: 5877 [2024-11-10 00:54:52,122 INFO L226 Difference]: Without dead ends: 4690 [2024-11-10 00:54:52,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:52,127 INFO L432 NwaCegarLoop]: 2282 mSDtfsCounter, 2180 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 2353 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:52,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2180 Valid, 2353 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:54:52,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4690 states. [2024-11-10 00:54:52,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4690 to 4687. [2024-11-10 00:54:52,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4687 states, 4685 states have (on average 1.7551760939167556) internal successors, (8223), 4686 states have internal predecessors, (8223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:52,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 8223 transitions. [2024-11-10 00:54:52,334 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 8223 transitions. Word has length 60 [2024-11-10 00:54:52,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:52,334 INFO L471 AbstractCegarLoop]: Abstraction has 4687 states and 8223 transitions. [2024-11-10 00:54:52,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:52,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 8223 transitions. [2024-11-10 00:54:52,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 00:54:52,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:52,338 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 00:54:52,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 00:54:52,338 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:52,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:52,339 INFO L85 PathProgramCache]: Analyzing trace with hash 958545093, now seen corresponding path program 1 times [2024-11-10 00:54:52,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:52,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432391963] [2024-11-10 00:54:52,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:52,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:52,579 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 00:54:52,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:52,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432391963] [2024-11-10 00:54:52,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432391963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:52,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:52,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:54:52,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854620073] [2024-11-10 00:54:52,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:52,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:54:52,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:52,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:54:52,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:54:52,582 INFO L87 Difference]: Start difference. First operand 4687 states and 8223 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:53,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:53,114 INFO L93 Difference]: Finished difference Result 21073 states and 31147 transitions. [2024-11-10 00:54:53,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:54:53,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-10 00:54:53,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:53,158 INFO L225 Difference]: With dead ends: 21073 [2024-11-10 00:54:53,158 INFO L226 Difference]: Without dead ends: 17934 [2024-11-10 00:54:53,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:54:53,171 INFO L432 NwaCegarLoop]: 2293 mSDtfsCounter, 9059 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9059 SdHoareTripleChecker+Valid, 5001 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:53,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9059 Valid, 5001 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:54:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17934 states. [2024-11-10 00:54:53,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17934 to 7823. [2024-11-10 00:54:53,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7823 states, 7821 states have (on average 1.60785065848357) internal successors, (12575), 7822 states have internal predecessors, (12575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7823 states to 7823 states and 12575 transitions. [2024-11-10 00:54:53,477 INFO L78 Accepts]: Start accepts. Automaton has 7823 states and 12575 transitions. Word has length 81 [2024-11-10 00:54:53,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:53,477 INFO L471 AbstractCegarLoop]: Abstraction has 7823 states and 12575 transitions. [2024-11-10 00:54:53,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:53,477 INFO L276 IsEmpty]: Start isEmpty. Operand 7823 states and 12575 transitions. [2024-11-10 00:54:53,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 00:54:53,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:53,480 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 00:54:53,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 00:54:53,480 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:53,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:53,480 INFO L85 PathProgramCache]: Analyzing trace with hash -42864635, now seen corresponding path program 1 times [2024-11-10 00:54:53,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:53,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571024424] [2024-11-10 00:54:53,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:53,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:53,704 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 00:54:53,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:53,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571024424] [2024-11-10 00:54:53,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571024424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:53,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:53,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:54:53,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233428362] [2024-11-10 00:54:53,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:53,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:54:53,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:53,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:54:53,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:54:53,707 INFO L87 Difference]: Start difference. First operand 7823 states and 12575 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:54,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:54,182 INFO L93 Difference]: Finished difference Result 24209 states and 35499 transitions. [2024-11-10 00:54:54,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:54:54,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-10 00:54:54,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:54,229 INFO L225 Difference]: With dead ends: 24209 [2024-11-10 00:54:54,230 INFO L226 Difference]: Without dead ends: 21070 [2024-11-10 00:54:54,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:54:54,245 INFO L432 NwaCegarLoop]: 2290 mSDtfsCounter, 9083 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9083 SdHoareTripleChecker+Valid, 4936 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:54,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9083 Valid, 4936 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:54:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21070 states. [2024-11-10 00:54:54,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21070 to 12543. [2024-11-10 00:54:54,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12543 states, 12541 states have (on average 1.5206921298142093) internal successors, (19071), 12542 states have internal predecessors, (19071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12543 states to 12543 states and 19071 transitions. [2024-11-10 00:54:54,675 INFO L78 Accepts]: Start accepts. Automaton has 12543 states and 19071 transitions. Word has length 81 [2024-11-10 00:54:54,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:54,675 INFO L471 AbstractCegarLoop]: Abstraction has 12543 states and 19071 transitions. [2024-11-10 00:54:54,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:54,676 INFO L276 IsEmpty]: Start isEmpty. Operand 12543 states and 19071 transitions. [2024-11-10 00:54:54,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 00:54:54,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:54,678 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 00:54:54,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 00:54:54,679 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:54,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:54,679 INFO L85 PathProgramCache]: Analyzing trace with hash -57314491, now seen corresponding path program 1 times [2024-11-10 00:54:54,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:54,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069830354] [2024-11-10 00:54:54,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:54,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:54,846 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-10 00:54:54,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:54,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069830354] [2024-11-10 00:54:54,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069830354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:54,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:54,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:54:54,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049513466] [2024-11-10 00:54:54,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:54,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:54:54,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:54,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:54:54,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:54:54,849 INFO L87 Difference]: Start difference. First operand 12543 states and 19071 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:55,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:55,470 INFO L93 Difference]: Finished difference Result 27345 states and 39851 transitions. [2024-11-10 00:54:55,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:54:55,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-10 00:54:55,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:55,519 INFO L225 Difference]: With dead ends: 27345 [2024-11-10 00:54:55,519 INFO L226 Difference]: Without dead ends: 24206 [2024-11-10 00:54:55,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:54:55,533 INFO L432 NwaCegarLoop]: 2287 mSDtfsCounter, 9118 mSDsluCounter, 2660 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9118 SdHoareTripleChecker+Valid, 4947 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:55,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9118 Valid, 4947 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:54:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24206 states. [2024-11-10 00:54:55,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24206 to 15679. [2024-11-10 00:54:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15679 states, 15677 states have (on average 1.4940996364100274) internal successors, (23423), 15678 states have internal predecessors, (23423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:56,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15679 states to 15679 states and 23423 transitions. [2024-11-10 00:54:56,041 INFO L78 Accepts]: Start accepts. Automaton has 15679 states and 23423 transitions. Word has length 81 [2024-11-10 00:54:56,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:56,042 INFO L471 AbstractCegarLoop]: Abstraction has 15679 states and 23423 transitions. [2024-11-10 00:54:56,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:56,042 INFO L276 IsEmpty]: Start isEmpty. Operand 15679 states and 23423 transitions. [2024-11-10 00:54:56,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 00:54:56,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:56,045 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 00:54:56,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 00:54:56,045 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:56,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:56,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2034288261, now seen corresponding path program 1 times [2024-11-10 00:54:56,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:56,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760003808] [2024-11-10 00:54:56,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:56,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:56,230 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-10 00:54:56,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:56,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760003808] [2024-11-10 00:54:56,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760003808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:56,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:56,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:54:56,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667584482] [2024-11-10 00:54:56,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:56,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:54:56,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:56,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:54:56,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:54:56,232 INFO L87 Difference]: Start difference. First operand 15679 states and 23423 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:56,909 INFO L93 Difference]: Finished difference Result 30481 states and 44203 transitions. [2024-11-10 00:54:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:54:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-10 00:54:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:56,966 INFO L225 Difference]: With dead ends: 30481 [2024-11-10 00:54:56,966 INFO L226 Difference]: Without dead ends: 27342 [2024-11-10 00:54:56,983 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:54:56,984 INFO L432 NwaCegarLoop]: 2297 mSDtfsCounter, 9071 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9071 SdHoareTripleChecker+Valid, 4996 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:56,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9071 Valid, 4996 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:54:57,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27342 states. [2024-11-10 00:54:57,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27342 to 18815. [2024-11-10 00:54:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18815 states, 18813 states have (on average 1.4763727209908042) internal successors, (27775), 18814 states have internal predecessors, (27775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:57,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18815 states to 18815 states and 27775 transitions. [2024-11-10 00:54:57,730 INFO L78 Accepts]: Start accepts. Automaton has 18815 states and 27775 transitions. Word has length 81 [2024-11-10 00:54:57,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:57,731 INFO L471 AbstractCegarLoop]: Abstraction has 18815 states and 27775 transitions. [2024-11-10 00:54:57,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:57,731 INFO L276 IsEmpty]: Start isEmpty. Operand 18815 states and 27775 transitions. [2024-11-10 00:54:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-10 00:54:57,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:57,736 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 00:54:57,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 00:54:57,736 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:57,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:57,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1240619397, now seen corresponding path program 1 times [2024-11-10 00:54:57,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:57,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60978850] [2024-11-10 00:54:57,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:57,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:58,067 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 00:54:58,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:58,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60978850] [2024-11-10 00:54:58,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60978850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:58,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:58,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 00:54:58,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046726173] [2024-11-10 00:54:58,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:58,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 00:54:58,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:58,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 00:54:58,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 00:54:58,069 INFO L87 Difference]: Start difference. First operand 18815 states and 27775 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:58,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:54:58,863 INFO L93 Difference]: Finished difference Result 31825 states and 46091 transitions. [2024-11-10 00:54:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 00:54:58,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-10 00:54:58,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:54:58,932 INFO L225 Difference]: With dead ends: 31825 [2024-11-10 00:54:58,932 INFO L226 Difference]: Without dead ends: 29582 [2024-11-10 00:54:58,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-10 00:54:58,946 INFO L432 NwaCegarLoop]: 2297 mSDtfsCounter, 9049 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9049 SdHoareTripleChecker+Valid, 5125 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:54:58,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9049 Valid, 5125 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 00:54:58,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29582 states. [2024-11-10 00:54:59,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29582 to 21055. [2024-11-10 00:54:59,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21055 states, 21053 states have (on average 1.4682468056809006) internal successors, (30911), 21054 states have internal predecessors, (30911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21055 states to 21055 states and 30911 transitions. [2024-11-10 00:54:59,740 INFO L78 Accepts]: Start accepts. Automaton has 21055 states and 30911 transitions. Word has length 81 [2024-11-10 00:54:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:54:59,741 INFO L471 AbstractCegarLoop]: Abstraction has 21055 states and 30911 transitions. [2024-11-10 00:54:59,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:54:59,742 INFO L276 IsEmpty]: Start isEmpty. Operand 21055 states and 30911 transitions. [2024-11-10 00:54:59,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 00:54:59,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:54:59,748 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 00:54:59,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 00:54:59,749 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:54:59,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:54:59,750 INFO L85 PathProgramCache]: Analyzing trace with hash 33226279, now seen corresponding path program 1 times [2024-11-10 00:54:59,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:54:59,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382535101] [2024-11-10 00:54:59,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:54:59,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:54:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:54:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:54:59,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:54:59,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382535101] [2024-11-10 00:54:59,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382535101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:54:59,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:54:59,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:54:59,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915534070] [2024-11-10 00:54:59,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:54:59,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:54:59,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:54:59,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:54:59,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:54:59,893 INFO L87 Difference]: Start difference. First operand 21055 states and 30911 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:00,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:55:00,455 INFO L93 Difference]: Finished difference Result 35642 states and 51321 transitions. [2024-11-10 00:55:00,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:55:00,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-11-10 00:55:00,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:55:00,482 INFO L225 Difference]: With dead ends: 35642 [2024-11-10 00:55:00,482 INFO L226 Difference]: Without dead ends: 16135 [2024-11-10 00:55:00,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:55:00,499 INFO L432 NwaCegarLoop]: 2270 mSDtfsCounter, 48 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:55:00,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 4486 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:55:00,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16135 states. [2024-11-10 00:55:00,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16135 to 16125. [2024-11-10 00:55:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16125 states, 16123 states have (on average 1.4893630217701421) internal successors, (24013), 16124 states have internal predecessors, (24013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:00,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16125 states to 16125 states and 24013 transitions. [2024-11-10 00:55:00,980 INFO L78 Accepts]: Start accepts. Automaton has 16125 states and 24013 transitions. Word has length 83 [2024-11-10 00:55:00,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:55:00,980 INFO L471 AbstractCegarLoop]: Abstraction has 16125 states and 24013 transitions. [2024-11-10 00:55:00,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:00,981 INFO L276 IsEmpty]: Start isEmpty. Operand 16125 states and 24013 transitions. [2024-11-10 00:55:00,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-10 00:55:00,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:55:00,984 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 00:55:00,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 00:55:00,984 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:55:00,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:55:00,985 INFO L85 PathProgramCache]: Analyzing trace with hash 523692775, now seen corresponding path program 1 times [2024-11-10 00:55:00,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:55:00,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567337769] [2024-11-10 00:55:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:00,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:55:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:01,102 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:01,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:55:01,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567337769] [2024-11-10 00:55:01,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567337769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:55:01,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:55:01,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:55:01,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269182792] [2024-11-10 00:55:01,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:55:01,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:55:01,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:55:01,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:55:01,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:55:01,104 INFO L87 Difference]: Start difference. First operand 16125 states and 24013 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:01,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:55:01,272 INFO L93 Difference]: Finished difference Result 23411 states and 34105 transitions. [2024-11-10 00:55:01,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:55:01,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2024-11-10 00:55:01,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:55:01,292 INFO L225 Difference]: With dead ends: 23411 [2024-11-10 00:55:01,293 INFO L226 Difference]: Without dead ends: 8848 [2024-11-10 00:55:01,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:55:01,310 INFO L432 NwaCegarLoop]: 2263 mSDtfsCounter, 43 mSDsluCounter, 2208 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 4471 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:55:01,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 4471 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:55:01,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8848 states. [2024-11-10 00:55:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8848 to 8845. [2024-11-10 00:55:01,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8845 states, 8843 states have (on average 1.5629311319687889) internal successors, (13821), 8844 states have internal predecessors, (13821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:01,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8845 states to 8845 states and 13821 transitions. [2024-11-10 00:55:01,637 INFO L78 Accepts]: Start accepts. Automaton has 8845 states and 13821 transitions. Word has length 83 [2024-11-10 00:55:01,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:55:01,638 INFO L471 AbstractCegarLoop]: Abstraction has 8845 states and 13821 transitions. [2024-11-10 00:55:01,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:01,638 INFO L276 IsEmpty]: Start isEmpty. Operand 8845 states and 13821 transitions. [2024-11-10 00:55:01,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-10 00:55:01,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:55:01,641 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-10 00:55:01,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 00:55:01,641 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:55:01,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:55:01,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1197682903, now seen corresponding path program 1 times [2024-11-10 00:55:01,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:55:01,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660162420] [2024-11-10 00:55:01,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:01,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:55:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:01,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:55:01,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660162420] [2024-11-10 00:55:01,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660162420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:55:01,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:55:01,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:55:01,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031520938] [2024-11-10 00:55:01,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:55:01,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:55:01,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:55:01,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:55:01,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:55:01,747 INFO L87 Difference]: Start difference. First operand 8845 states and 13821 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:01,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:55:01,978 INFO L93 Difference]: Finished difference Result 12491 states and 18817 transitions. [2024-11-10 00:55:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:55:01,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2024-11-10 00:55:01,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:55:01,993 INFO L225 Difference]: With dead ends: 12491 [2024-11-10 00:55:01,994 INFO L226 Difference]: Without dead ends: 5208 [2024-11-10 00:55:02,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:55:02,006 INFO L432 NwaCegarLoop]: 2256 mSDtfsCounter, 38 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4456 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:55:02,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4456 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:55:02,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5208 states. [2024-11-10 00:55:02,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5208 to 5205. [2024-11-10 00:55:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5203 states have (on average 1.6869113972708054) internal successors, (8777), 5204 states have internal predecessors, (8777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 8777 transitions. [2024-11-10 00:55:02,194 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 8777 transitions. Word has length 85 [2024-11-10 00:55:02,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:55:02,195 INFO L471 AbstractCegarLoop]: Abstraction has 5205 states and 8777 transitions. [2024-11-10 00:55:02,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:02,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 8777 transitions. [2024-11-10 00:55:02,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-10 00:55:02,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:55:02,198 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:55:02,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 00:55:02,199 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:55:02,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:55:02,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1769393264, now seen corresponding path program 1 times [2024-11-10 00:55:02,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:55:02,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7567569] [2024-11-10 00:55:02,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:02,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:55:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:02,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:55:02,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7567569] [2024-11-10 00:55:02,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7567569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:55:02,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:55:02,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:55:02,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328904052] [2024-11-10 00:55:02,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:55:02,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:55:02,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:55:02,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:55:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:55:02,365 INFO L87 Difference]: Start difference. First operand 5205 states and 8777 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:02,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:55:02,465 INFO L93 Difference]: Finished difference Result 7031 states and 11251 transitions. [2024-11-10 00:55:02,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:55:02,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-10 00:55:02,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:55:02,475 INFO L225 Difference]: With dead ends: 7031 [2024-11-10 00:55:02,475 INFO L226 Difference]: Without dead ends: 3388 [2024-11-10 00:55:02,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:55:02,481 INFO L432 NwaCegarLoop]: 2249 mSDtfsCounter, 35 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4441 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:55:02,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 4441 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:55:02,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2024-11-10 00:55:02,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 3385. [2024-11-10 00:55:02,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3385 states, 3383 states have (on average 1.8566361217853975) internal successors, (6281), 3384 states have internal predecessors, (6281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:02,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 6281 transitions. [2024-11-10 00:55:02,607 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 6281 transitions. Word has length 87 [2024-11-10 00:55:02,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:55:02,608 INFO L471 AbstractCegarLoop]: Abstraction has 3385 states and 6281 transitions. [2024-11-10 00:55:02,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:02,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 6281 transitions. [2024-11-10 00:55:02,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 00:55:02,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:55:02,613 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:55:02,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 00:55:02,614 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:55:02,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:55:02,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1728874217, now seen corresponding path program 1 times [2024-11-10 00:55:02,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:55:02,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367979541] [2024-11-10 00:55:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:02,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:55:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:02,767 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:02,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:55:02,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367979541] [2024-11-10 00:55:02,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367979541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 00:55:02,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 00:55:02,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 00:55:02,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736001770] [2024-11-10 00:55:02,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 00:55:02,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 00:55:02,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:55:02,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 00:55:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:55:02,770 INFO L87 Difference]: Start difference. First operand 3385 states and 6281 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:55:02,815 INFO L93 Difference]: Finished difference Result 4301 states and 7507 transitions. [2024-11-10 00:55:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 00:55:02,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-10 00:55:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:55:02,820 INFO L225 Difference]: With dead ends: 4301 [2024-11-10 00:55:02,821 INFO L226 Difference]: Without dead ends: 2478 [2024-11-10 00:55:02,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 00:55:02,824 INFO L432 NwaCegarLoop]: 2242 mSDtfsCounter, 32 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 00:55:02,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 4426 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 00:55:02,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2024-11-10 00:55:02,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2475. [2024-11-10 00:55:02,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2473 states have (on average 2.040436716538617) internal successors, (5046), 2474 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:02,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 5046 transitions. [2024-11-10 00:55:02,872 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 5046 transitions. Word has length 89 [2024-11-10 00:55:02,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:55:02,872 INFO L471 AbstractCegarLoop]: Abstraction has 2475 states and 5046 transitions. [2024-11-10 00:55:02,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:02,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 5046 transitions. [2024-11-10 00:55:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-10 00:55:02,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:55:02,874 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:55:02,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 00:55:02,874 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:55:02,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:55:02,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1030885310, now seen corresponding path program 1 times [2024-11-10 00:55:02,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:55:02,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303632583] [2024-11-10 00:55:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:02,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:55:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:03,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:55:03,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303632583] [2024-11-10 00:55:03,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303632583] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:55:03,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836455675] [2024-11-10 00:55:03,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:03,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:55:03,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:55:03,240 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) [2024-11-10 00:55:03,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 00:55:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:03,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 00:55:03,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:55:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:04,152 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:55:05,374 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:05,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836455675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:55:05,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:55:05,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-10 00:55:05,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18919024] [2024-11-10 00:55:05,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:55:05,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 00:55:05,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:55:05,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 00:55:05,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-10 00:55:05,378 INFO L87 Difference]: Start difference. First operand 2475 states and 5046 transitions. Second operand has 26 states, 26 states have (on average 9.884615384615385) internal successors, (257), 25 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:07,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:55:07,045 INFO L93 Difference]: Finished difference Result 6396 states and 10260 transitions. [2024-11-10 00:55:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-10 00:55:07,046 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.884615384615385) internal successors, (257), 25 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-10 00:55:07,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:55:07,054 INFO L225 Difference]: With dead ends: 6396 [2024-11-10 00:55:07,054 INFO L226 Difference]: Without dead ends: 5483 [2024-11-10 00:55:07,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=656, Invalid=2536, Unknown=0, NotChecked=0, Total=3192 [2024-11-10 00:55:07,059 INFO L432 NwaCegarLoop]: 2185 mSDtfsCounter, 25257 mSDsluCounter, 9221 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25257 SdHoareTripleChecker+Valid, 11406 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 00:55:07,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25257 Valid, 11406 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 00:55:07,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5483 states. [2024-11-10 00:55:07,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5483 to 5413. [2024-11-10 00:55:07,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5413 states, 5411 states have (on average 1.6316762151173536) internal successors, (8829), 5412 states have internal predecessors, (8829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:07,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5413 states to 5413 states and 8829 transitions. [2024-11-10 00:55:07,189 INFO L78 Accepts]: Start accepts. Automaton has 5413 states and 8829 transitions. Word has length 91 [2024-11-10 00:55:07,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:55:07,189 INFO L471 AbstractCegarLoop]: Abstraction has 5413 states and 8829 transitions. [2024-11-10 00:55:07,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.884615384615385) internal successors, (257), 25 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:07,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5413 states and 8829 transitions. [2024-11-10 00:55:07,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-10 00:55:07,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:55:07,191 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:55:07,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 00:55:07,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-10 00:55:07,396 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:55:07,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:55:07,397 INFO L85 PathProgramCache]: Analyzing trace with hash -163823330, now seen corresponding path program 1 times [2024-11-10 00:55:07,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:55:07,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856900153] [2024-11-10 00:55:07,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:07,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:55:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:08,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:55:08,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856900153] [2024-11-10 00:55:08,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856900153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:55:08,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292789294] [2024-11-10 00:55:08,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:08,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:55:08,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:55:08,564 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) [2024-11-10 00:55:08,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 00:55:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:08,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 00:55:08,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:55:09,305 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:09,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:55:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:10,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292789294] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:55:10,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:55:10,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-10 00:55:10,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620365841] [2024-11-10 00:55:10,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:55:10,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-10 00:55:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:55:10,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-10 00:55:10,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2024-11-10 00:55:10,204 INFO L87 Difference]: Start difference. First operand 5413 states and 8829 transitions. Second operand has 28 states, 28 states have (on average 8.321428571428571) internal successors, (233), 27 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:55:13,997 INFO L93 Difference]: Finished difference Result 23946 states and 33023 transitions. [2024-11-10 00:55:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-10 00:55:13,998 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 8.321428571428571) internal successors, (233), 27 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-10 00:55:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:55:14,022 INFO L225 Difference]: With dead ends: 23946 [2024-11-10 00:55:14,023 INFO L226 Difference]: Without dead ends: 20095 [2024-11-10 00:55:14,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1281 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=990, Invalid=4266, Unknown=0, NotChecked=0, Total=5256 [2024-11-10 00:55:14,027 INFO L432 NwaCegarLoop]: 2252 mSDtfsCounter, 33463 mSDsluCounter, 7982 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33463 SdHoareTripleChecker+Valid, 10234 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 00:55:14,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33463 Valid, 10234 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 00:55:14,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20095 states. [2024-11-10 00:55:14,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20095 to 19661. [2024-11-10 00:55:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19661 states, 19659 states have (on average 1.3696017091408514) internal successors, (26925), 19660 states have internal predecessors, (26925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:14,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19661 states to 19661 states and 26925 transitions. [2024-11-10 00:55:14,471 INFO L78 Accepts]: Start accepts. Automaton has 19661 states and 26925 transitions. Word has length 91 [2024-11-10 00:55:14,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:55:14,471 INFO L471 AbstractCegarLoop]: Abstraction has 19661 states and 26925 transitions. [2024-11-10 00:55:14,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.321428571428571) internal successors, (233), 27 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:14,471 INFO L276 IsEmpty]: Start isEmpty. Operand 19661 states and 26925 transitions. [2024-11-10 00:55:14,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 00:55:14,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:55:14,476 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:55:14,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 00:55:14,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-10 00:55:14,677 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:55:14,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:55:14,677 INFO L85 PathProgramCache]: Analyzing trace with hash -451532262, now seen corresponding path program 1 times [2024-11-10 00:55:14,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:55:14,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085235941] [2024-11-10 00:55:14,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:14,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:55:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:15,169 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:15,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:55:15,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085235941] [2024-11-10 00:55:15,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085235941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:55:15,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116333162] [2024-11-10 00:55:15,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:15,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:55:15,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:55:15,171 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) [2024-11-10 00:55:15,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 00:55:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:15,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 00:55:15,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:55:15,963 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:15,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:55:16,882 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:16,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116333162] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:55:16,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:55:16,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-10 00:55:16,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706174047] [2024-11-10 00:55:16,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:55:16,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-10 00:55:16,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:55:16,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-10 00:55:16,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2024-11-10 00:55:16,885 INFO L87 Difference]: Start difference. First operand 19661 states and 26925 transitions. Second operand has 32 states, 32 states have (on average 7.5) internal successors, (240), 32 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:55:20,998 INFO L93 Difference]: Finished difference Result 47947 states and 63113 transitions. [2024-11-10 00:55:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-10 00:55:20,999 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.5) internal successors, (240), 32 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-10 00:55:20,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:55:21,035 INFO L225 Difference]: With dead ends: 47947 [2024-11-10 00:55:21,035 INFO L226 Difference]: Without dead ends: 29848 [2024-11-10 00:55:21,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2315 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1378, Invalid=6994, Unknown=0, NotChecked=0, Total=8372 [2024-11-10 00:55:21,047 INFO L432 NwaCegarLoop]: 2211 mSDtfsCounter, 19027 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19027 SdHoareTripleChecker+Valid, 19035 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 00:55:21,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19027 Valid, 19035 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 00:55:21,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29848 states. [2024-11-10 00:55:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29848 to 16685. [2024-11-10 00:55:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16685 states, 16683 states have (on average 1.378469100281724) internal successors, (22997), 16684 states have internal predecessors, (22997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:21,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16685 states to 16685 states and 22997 transitions. [2024-11-10 00:55:21,637 INFO L78 Accepts]: Start accepts. Automaton has 16685 states and 22997 transitions. Word has length 93 [2024-11-10 00:55:21,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:55:21,637 INFO L471 AbstractCegarLoop]: Abstraction has 16685 states and 22997 transitions. [2024-11-10 00:55:21,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.5) internal successors, (240), 32 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:21,638 INFO L276 IsEmpty]: Start isEmpty. Operand 16685 states and 22997 transitions. [2024-11-10 00:55:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-10 00:55:21,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:55:21,642 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:55:21,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 00:55:21,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:55:21,843 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:55:21,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:55:21,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1804855481, now seen corresponding path program 1 times [2024-11-10 00:55:21,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:55:21,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016526876] [2024-11-10 00:55:21,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:21,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:55:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:22,225 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:22,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:55:22,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016526876] [2024-11-10 00:55:22,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016526876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:55:22,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618135723] [2024-11-10 00:55:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:22,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:55:22,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:55:22,229 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) [2024-11-10 00:55:22,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 00:55:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:22,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 00:55:22,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:55:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:23,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:55:24,546 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:24,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618135723] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:55:24,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:55:24,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-10 00:55:24,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329374421] [2024-11-10 00:55:24,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:55:24,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-10 00:55:24,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:55:24,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-10 00:55:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=882, Unknown=0, NotChecked=0, Total=992 [2024-11-10 00:55:24,548 INFO L87 Difference]: Start difference. First operand 16685 states and 22997 transitions. Second operand has 32 states, 32 states have (on average 7.78125) internal successors, (249), 32 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 00:55:28,638 INFO L93 Difference]: Finished difference Result 60111 states and 77869 transitions. [2024-11-10 00:55:28,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-10 00:55:28,639 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.78125) internal successors, (249), 32 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-10 00:55:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 00:55:28,701 INFO L225 Difference]: With dead ends: 60111 [2024-11-10 00:55:28,701 INFO L226 Difference]: Without dead ends: 44988 [2024-11-10 00:55:28,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1664 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1114, Invalid=5528, Unknown=0, NotChecked=0, Total=6642 [2024-11-10 00:55:28,726 INFO L432 NwaCegarLoop]: 2212 mSDtfsCounter, 26573 mSDsluCounter, 23032 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26573 SdHoareTripleChecker+Valid, 25244 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 00:55:28,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26573 Valid, 25244 Invalid, 1684 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 00:55:28,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44988 states. [2024-11-10 00:55:30,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44988 to 29533. [2024-11-10 00:55:30,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29533 states, 29531 states have (on average 1.3224408248958721) internal successors, (39053), 29532 states have internal predecessors, (39053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:30,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29533 states to 29533 states and 39053 transitions. [2024-11-10 00:55:30,131 INFO L78 Accepts]: Start accepts. Automaton has 29533 states and 39053 transitions. Word has length 93 [2024-11-10 00:55:30,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 00:55:30,131 INFO L471 AbstractCegarLoop]: Abstraction has 29533 states and 39053 transitions. [2024-11-10 00:55:30,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.78125) internal successors, (249), 32 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 00:55:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand 29533 states and 39053 transitions. [2024-11-10 00:55:30,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-10 00:55:30,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 00:55:30,136 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 00:55:30,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 00:55:30,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:55:30,337 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 00:55:30,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 00:55:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash 205112900, now seen corresponding path program 1 times [2024-11-10 00:55:30,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 00:55:30,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795168874] [2024-11-10 00:55:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:30,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 00:55:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:31,215 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:31,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 00:55:31,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795168874] [2024-11-10 00:55:31,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795168874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 00:55:31,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159939026] [2024-11-10 00:55:31,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 00:55:31,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 00:55:31,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 00:55:31,219 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) [2024-11-10 00:55:31,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 00:55:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 00:55:31,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-10 00:55:31,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 00:55:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:34,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 00:55:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 00:55:36,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159939026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 00:55:36,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 00:55:36,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18, 16] total 42 [2024-11-10 00:55:36,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884331035] [2024-11-10 00:55:36,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 00:55:36,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-10 00:55:36,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 00:55:36,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-10 00:55:36,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1509, Unknown=0, NotChecked=0, Total=1722 [2024-11-10 00:55:36,339 INFO L87 Difference]: Start difference. First operand 29533 states and 39053 transitions. Second operand has 42 states, 42 states have (on average 5.666666666666667) internal successors, (238), 42 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)