/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:46:22,936 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:46:22,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 02:46:22,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:46:22,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:46:23,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:46:23,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:46:23,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:46:23,019 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:46:23,019 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:46:23,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:46:23,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:46:23,020 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:46:23,020 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:46:23,020 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:46:23,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:46:23,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:46:23,021 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:46:23,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:46:23,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:46:23,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:46:23,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:46:23,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:46:23,023 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:46:23,023 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:46:23,023 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:46:23,023 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:46:23,024 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:46:23,024 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:46:23,024 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:46:23,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:46:23,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:46:23,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:46:23,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:46:23,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:46:23,025 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:46:23,026 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:46:23,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:46:23,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:46:23,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:46:23,026 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:46:23,031 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:46:23,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:46:23,031 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:46:23,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:46:23,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:46:23,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:46:23,253 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:46:23,254 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:46:23,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 02:46:24,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:46:24,604 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:46:24,605 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 02:46:24,619 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438bc2d63/cfce057b217e427cb09b17a454ce5ec8/FLAG2a6060135 [2023-12-20 02:46:24,629 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438bc2d63/cfce057b217e427cb09b17a454ce5ec8 [2023-12-20 02:46:24,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:46:24,631 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:46:24,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:46:24,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:46:24,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:46:24,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:46:24" (1/1) ... [2023-12-20 02:46:24,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1865ae27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:24, skipping insertion in model container [2023-12-20 02:46:24,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:46:24" (1/1) ... [2023-12-20 02:46:24,752 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:46:24,992 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7184,7197] [2023-12-20 02:46:25,009 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11285,11298] [2023-12-20 02:46:25,049 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[18315,18328] [2023-12-20 02:46:25,084 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24747,24760] [2023-12-20 02:46:25,179 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[43722,43735] [2023-12-20 02:46:25,257 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71504,71517] [2023-12-20 02:46:25,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:46:25,387 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:46:25,415 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7184,7197] [2023-12-20 02:46:25,427 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[11285,11298] [2023-12-20 02:46:25,473 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[18315,18328] [2023-12-20 02:46:25,480 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24747,24760] [2023-12-20 02:46:25,499 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[43722,43735] [2023-12-20 02:46:25,529 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71504,71517] [2023-12-20 02:46:25,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:46:25,602 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:46:25,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25 WrapperNode [2023-12-20 02:46:25,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:46:25,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:46:25,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:46:25,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:46:25,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,730 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6033 [2023-12-20 02:46:25,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:46:25,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:46:25,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:46:25,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:46:25,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,806 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 02:46:25,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,866 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:46:25,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:46:25,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:46:25,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:46:25,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (1/1) ... [2023-12-20 02:46:25,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:46:25,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:46:25,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 02:46:25,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 02:46:25,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:46:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:46:25,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:46:25,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:46:26,174 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:46:26,175 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:46:27,985 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:46:28,018 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:46:28,018 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:46:28,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:46:28 BoogieIcfgContainer [2023-12-20 02:46:28,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:46:28,020 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:46:28,020 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:46:28,022 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:46:28,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:46:24" (1/3) ... [2023-12-20 02:46:28,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e54fceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:46:28, skipping insertion in model container [2023-12-20 02:46:28,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:46:25" (2/3) ... [2023-12-20 02:46:28,023 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e54fceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:46:28, skipping insertion in model container [2023-12-20 02:46:28,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:46:28" (3/3) ... [2023-12-20 02:46:28,024 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 02:46:28,034 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:46:28,034 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-20 02:46:28,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:46:28,094 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@737e635d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:46:28,094 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-12-20 02:46:28,103 INFO L276 IsEmpty]: Start isEmpty. Operand has 1252 states, 1245 states have (on average 1.8056224899598394) internal successors, (2248), 1251 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:28,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 02:46:28,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:28,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:28,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:28,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:28,127 INFO L85 PathProgramCache]: Analyzing trace with hash 966667412, now seen corresponding path program 1 times [2023-12-20 02:46:28,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:28,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984686569] [2023-12-20 02:46:28,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:28,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:28,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:28,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:28,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984686569] [2023-12-20 02:46:28,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984686569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:28,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:28,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:46:28,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205191782] [2023-12-20 02:46:28,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:28,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:28,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:28,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:28,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:28,458 INFO L87 Difference]: Start difference. First operand has 1252 states, 1245 states have (on average 1.8056224899598394) internal successors, (2248), 1251 states have internal predecessors, (2248), 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 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:29,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:29,754 INFO L93 Difference]: Finished difference Result 2462 states and 4318 transitions. [2023-12-20 02:46:29,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:29,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 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 50 [2023-12-20 02:46:29,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:29,769 INFO L225 Difference]: With dead ends: 2462 [2023-12-20 02:46:29,770 INFO L226 Difference]: Without dead ends: 1549 [2023-12-20 02:46:29,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:29,776 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 7054 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7054 SdHoareTripleChecker+Valid, 1477 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:29,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7054 Valid, 1477 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:46:29,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2023-12-20 02:46:29,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1543. [2023-12-20 02:46:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1537 states have (on average 1.3565387117761873) internal successors, (2085), 1542 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2085 transitions. [2023-12-20 02:46:29,851 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2085 transitions. Word has length 50 [2023-12-20 02:46:29,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:29,851 INFO L495 AbstractCegarLoop]: Abstraction has 1543 states and 2085 transitions. [2023-12-20 02:46:29,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2085 transitions. [2023-12-20 02:46:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 02:46:29,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:29,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:29,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:46:29,854 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:29,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:29,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1129412729, now seen corresponding path program 1 times [2023-12-20 02:46:29,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:29,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10472604] [2023-12-20 02:46:29,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:29,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:29,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:29,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10472604] [2023-12-20 02:46:29,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10472604] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:29,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:29,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:46:29,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578354200] [2023-12-20 02:46:29,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:29,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:29,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:29,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:29,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:29,977 INFO L87 Difference]: Start difference. First operand 1543 states and 2085 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:30,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:30,800 INFO L93 Difference]: Finished difference Result 3168 states and 4337 transitions. [2023-12-20 02:46:30,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:30,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2023-12-20 02:46:30,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:30,806 INFO L225 Difference]: With dead ends: 3168 [2023-12-20 02:46:30,806 INFO L226 Difference]: Without dead ends: 2188 [2023-12-20 02:46:30,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:30,808 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 5058 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5058 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:30,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5058 Valid, 1028 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:46:30,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2023-12-20 02:46:30,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2176. [2023-12-20 02:46:30,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2170 states have (on average 1.3755760368663594) internal successors, (2985), 2175 states have internal predecessors, (2985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:30,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 2985 transitions. [2023-12-20 02:46:30,861 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 2985 transitions. Word has length 51 [2023-12-20 02:46:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:30,862 INFO L495 AbstractCegarLoop]: Abstraction has 2176 states and 2985 transitions. [2023-12-20 02:46:30,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:30,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 2985 transitions. [2023-12-20 02:46:30,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 02:46:30,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:30,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:30,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:46:30,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:30,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:30,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1240611768, now seen corresponding path program 1 times [2023-12-20 02:46:30,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:30,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196771124] [2023-12-20 02:46:30,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:30,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:30,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:30,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:30,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196771124] [2023-12-20 02:46:30,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196771124] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:30,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:30,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:46:30,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061410988] [2023-12-20 02:46:30,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:30,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:30,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:30,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:30,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:30,945 INFO L87 Difference]: Start difference. First operand 2176 states and 2985 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:31,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:31,633 INFO L93 Difference]: Finished difference Result 4519 states and 6279 transitions. [2023-12-20 02:46:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:31,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 51 [2023-12-20 02:46:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:31,641 INFO L225 Difference]: With dead ends: 4519 [2023-12-20 02:46:31,642 INFO L226 Difference]: Without dead ends: 3044 [2023-12-20 02:46:31,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:31,645 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 4477 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:31,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4477 Valid, 882 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:46:31,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2023-12-20 02:46:31,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 3034. [2023-12-20 02:46:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3028 states have (on average 1.3768163804491413) internal successors, (4169), 3033 states have internal predecessors, (4169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4169 transitions. [2023-12-20 02:46:31,690 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4169 transitions. Word has length 51 [2023-12-20 02:46:31,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:31,691 INFO L495 AbstractCegarLoop]: Abstraction has 3034 states and 4169 transitions. [2023-12-20 02:46:31,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4169 transitions. [2023-12-20 02:46:31,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:46:31,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:31,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:31,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:46:31,693 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:31,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:31,694 INFO L85 PathProgramCache]: Analyzing trace with hash -40243798, now seen corresponding path program 1 times [2023-12-20 02:46:31,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:31,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258633798] [2023-12-20 02:46:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:31,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:31,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:31,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258633798] [2023-12-20 02:46:31,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258633798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:31,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:31,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:46:31,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711613357] [2023-12-20 02:46:31,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:31,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:46:31,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:31,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:46:31,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:46:31,879 INFO L87 Difference]: Start difference. First operand 3034 states and 4169 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:33,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:33,552 INFO L93 Difference]: Finished difference Result 6106 states and 8639 transitions. [2023-12-20 02:46:33,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:46:33,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2023-12-20 02:46:33,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:33,567 INFO L225 Difference]: With dead ends: 6106 [2023-12-20 02:46:33,567 INFO L226 Difference]: Without dead ends: 5549 [2023-12-20 02:46:33,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:46:33,569 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 4089 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 3108 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4089 SdHoareTripleChecker+Valid, 2985 SdHoareTripleChecker+Invalid, 3166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:33,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4089 Valid, 2985 Invalid, 3166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3108 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 02:46:33,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2023-12-20 02:46:33,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 3034. [2023-12-20 02:46:33,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3028 states have (on average 1.3764861294583883) internal successors, (4168), 3033 states have internal predecessors, (4168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:33,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4168 transitions. [2023-12-20 02:46:33,638 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4168 transitions. Word has length 52 [2023-12-20 02:46:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:33,638 INFO L495 AbstractCegarLoop]: Abstraction has 3034 states and 4168 transitions. [2023-12-20 02:46:33,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:33,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4168 transitions. [2023-12-20 02:46:33,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:46:33,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:33,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:33,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:46:33,640 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:33,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:33,641 INFO L85 PathProgramCache]: Analyzing trace with hash -185533245, now seen corresponding path program 1 times [2023-12-20 02:46:33,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:33,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642236786] [2023-12-20 02:46:33,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:33,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:33,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:33,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:33,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642236786] [2023-12-20 02:46:33,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642236786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:33,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:33,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:46:33,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286802264] [2023-12-20 02:46:33,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:33,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:46:33,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:33,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:46:33,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:46:33,788 INFO L87 Difference]: Start difference. First operand 3034 states and 4168 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:35,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:35,370 INFO L93 Difference]: Finished difference Result 4572 states and 6369 transitions. [2023-12-20 02:46:35,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:46:35,371 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 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 52 [2023-12-20 02:46:35,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:35,383 INFO L225 Difference]: With dead ends: 4572 [2023-12-20 02:46:35,383 INFO L226 Difference]: Without dead ends: 4567 [2023-12-20 02:46:35,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:46:35,385 INFO L413 NwaCegarLoop]: 683 mSDtfsCounter, 2687 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 3415 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2687 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 3448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:35,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2687 Valid, 3577 Invalid, 3448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3415 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:46:35,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4567 states. [2023-12-20 02:46:35,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4567 to 3034. [2023-12-20 02:46:35,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3028 states have (on average 1.3761558784676353) internal successors, (4167), 3033 states have internal predecessors, (4167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:35,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4167 transitions. [2023-12-20 02:46:35,443 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4167 transitions. Word has length 52 [2023-12-20 02:46:35,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:35,444 INFO L495 AbstractCegarLoop]: Abstraction has 3034 states and 4167 transitions. [2023-12-20 02:46:35,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:35,444 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4167 transitions. [2023-12-20 02:46:35,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:46:35,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:35,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:35,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:46:35,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:35,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:35,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1651109861, now seen corresponding path program 1 times [2023-12-20 02:46:35,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:35,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347610183] [2023-12-20 02:46:35,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:35,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:35,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:35,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:35,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347610183] [2023-12-20 02:46:35,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347610183] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:35,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:35,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:46:35,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081914441] [2023-12-20 02:46:35,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:35,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:46:35,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:35,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:46:35,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:35,661 INFO L87 Difference]: Start difference. First operand 3034 states and 4167 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:36,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:36,697 INFO L93 Difference]: Finished difference Result 5094 states and 7232 transitions. [2023-12-20 02:46:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 02:46:36,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2023-12-20 02:46:36,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:36,714 INFO L225 Difference]: With dead ends: 5094 [2023-12-20 02:46:36,714 INFO L226 Difference]: Without dead ends: 4423 [2023-12-20 02:46:36,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:46:36,717 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 3999 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 2549 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 3000 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:36,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3999 Valid, 3000 Invalid, 2555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2549 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:46:36,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4423 states. [2023-12-20 02:46:36,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4423 to 3034. [2023-12-20 02:46:36,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3028 states have (on average 1.3758256274768825) internal successors, (4166), 3033 states have internal predecessors, (4166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4166 transitions. [2023-12-20 02:46:36,757 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4166 transitions. Word has length 52 [2023-12-20 02:46:36,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:36,757 INFO L495 AbstractCegarLoop]: Abstraction has 3034 states and 4166 transitions. [2023-12-20 02:46:36,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:36,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4166 transitions. [2023-12-20 02:46:36,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 02:46:36,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:36,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:36,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:46:36,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:36,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:36,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1538413769, now seen corresponding path program 1 times [2023-12-20 02:46:36,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:36,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489680829] [2023-12-20 02:46:36,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:36,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:36,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:36,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489680829] [2023-12-20 02:46:36,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489680829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:36,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:36,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:36,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412673396] [2023-12-20 02:46:36,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:36,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:36,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:36,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:36,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:36,795 INFO L87 Difference]: Start difference. First operand 3034 states and 4166 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:36,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:36,841 INFO L93 Difference]: Finished difference Result 3990 states and 5631 transitions. [2023-12-20 02:46:36,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:36,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-12-20 02:46:36,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:36,848 INFO L225 Difference]: With dead ends: 3990 [2023-12-20 02:46:36,848 INFO L226 Difference]: Without dead ends: 3087 [2023-12-20 02:46:36,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:36,850 INFO L413 NwaCegarLoop]: 1184 mSDtfsCounter, 579 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:36,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1783 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:36,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2023-12-20 02:46:36,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3085. [2023-12-20 02:46:36,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3085 states, 3079 states have (on average 1.3842156544332576) internal successors, (4262), 3084 states have internal predecessors, (4262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 4262 transitions. [2023-12-20 02:46:36,884 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 4262 transitions. Word has length 53 [2023-12-20 02:46:36,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:36,884 INFO L495 AbstractCegarLoop]: Abstraction has 3085 states and 4262 transitions. [2023-12-20 02:46:36,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 4262 transitions. [2023-12-20 02:46:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 02:46:36,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:36,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:36,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:46:36,886 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:36,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:36,886 INFO L85 PathProgramCache]: Analyzing trace with hash -651733059, now seen corresponding path program 1 times [2023-12-20 02:46:36,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:36,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35296517] [2023-12-20 02:46:36,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:36,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:36,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:36,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:36,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35296517] [2023-12-20 02:46:36,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35296517] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:36,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:36,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:36,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911556513] [2023-12-20 02:46:36,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:36,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:36,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:36,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:36,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:36,921 INFO L87 Difference]: Start difference. First operand 3085 states and 4262 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:36,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:36,964 INFO L93 Difference]: Finished difference Result 4726 states and 6796 transitions. [2023-12-20 02:46:36,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:36,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-12-20 02:46:36,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:36,972 INFO L225 Difference]: With dead ends: 4726 [2023-12-20 02:46:36,972 INFO L226 Difference]: Without dead ends: 3507 [2023-12-20 02:46:36,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:36,974 INFO L413 NwaCegarLoop]: 1141 mSDtfsCounter, 577 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:36,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 1734 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:36,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3507 states. [2023-12-20 02:46:37,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3507 to 3505. [2023-12-20 02:46:37,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3505 states, 3499 states have (on average 1.4118319519862819) internal successors, (4940), 3504 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3505 states to 3505 states and 4940 transitions. [2023-12-20 02:46:37,011 INFO L78 Accepts]: Start accepts. Automaton has 3505 states and 4940 transitions. Word has length 53 [2023-12-20 02:46:37,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:37,012 INFO L495 AbstractCegarLoop]: Abstraction has 3505 states and 4940 transitions. [2023-12-20 02:46:37,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3505 states and 4940 transitions. [2023-12-20 02:46:37,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 02:46:37,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:37,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:37,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:46:37,019 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:37,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:37,020 INFO L85 PathProgramCache]: Analyzing trace with hash 408369717, now seen corresponding path program 1 times [2023-12-20 02:46:37,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:37,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717162872] [2023-12-20 02:46:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:37,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:37,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:37,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:37,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717162872] [2023-12-20 02:46:37,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717162872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:37,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:37,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:37,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146321733] [2023-12-20 02:46:37,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:37,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:37,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:37,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:37,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:37,066 INFO L87 Difference]: Start difference. First operand 3505 states and 4940 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:37,155 INFO L93 Difference]: Finished difference Result 7604 states and 10991 transitions. [2023-12-20 02:46:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:37,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-12-20 02:46:37,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:37,162 INFO L225 Difference]: With dead ends: 7604 [2023-12-20 02:46:37,162 INFO L226 Difference]: Without dead ends: 5152 [2023-12-20 02:46:37,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:37,166 INFO L413 NwaCegarLoop]: 1198 mSDtfsCounter, 649 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:37,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1959 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:46:37,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5152 states. [2023-12-20 02:46:37,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5152 to 5146. [2023-12-20 02:46:37,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5146 states, 5140 states have (on average 1.4134241245136188) internal successors, (7265), 5145 states have internal predecessors, (7265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 7265 transitions. [2023-12-20 02:46:37,219 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 7265 transitions. Word has length 53 [2023-12-20 02:46:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:37,220 INFO L495 AbstractCegarLoop]: Abstraction has 5146 states and 7265 transitions. [2023-12-20 02:46:37,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,220 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 7265 transitions. [2023-12-20 02:46:37,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:46:37,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:37,222 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:37,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 02:46:37,222 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:37,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:37,223 INFO L85 PathProgramCache]: Analyzing trace with hash 888209781, now seen corresponding path program 1 times [2023-12-20 02:46:37,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:37,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320563095] [2023-12-20 02:46:37,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:37,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:37,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:37,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:37,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320563095] [2023-12-20 02:46:37,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320563095] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:37,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:37,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:37,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699342062] [2023-12-20 02:46:37,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:37,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:37,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:37,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:37,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:37,257 INFO L87 Difference]: Start difference. First operand 5146 states and 7265 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:37,330 INFO L93 Difference]: Finished difference Result 9592 states and 13740 transitions. [2023-12-20 02:46:37,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:37,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-20 02:46:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:37,338 INFO L225 Difference]: With dead ends: 9592 [2023-12-20 02:46:37,338 INFO L226 Difference]: Without dead ends: 5407 [2023-12-20 02:46:37,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:37,343 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 848 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:37,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1283 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:46:37,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5407 states. [2023-12-20 02:46:37,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5407 to 4342. [2023-12-20 02:46:37,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4342 states, 4337 states have (on average 1.4251786949504266) internal successors, (6181), 4341 states have internal predecessors, (6181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4342 states to 4342 states and 6181 transitions. [2023-12-20 02:46:37,430 INFO L78 Accepts]: Start accepts. Automaton has 4342 states and 6181 transitions. Word has length 54 [2023-12-20 02:46:37,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:37,431 INFO L495 AbstractCegarLoop]: Abstraction has 4342 states and 6181 transitions. [2023-12-20 02:46:37,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4342 states and 6181 transitions. [2023-12-20 02:46:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:46:37,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:37,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:37,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:46:37,433 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:37,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:37,433 INFO L85 PathProgramCache]: Analyzing trace with hash -290391896, now seen corresponding path program 1 times [2023-12-20 02:46:37,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:37,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859172323] [2023-12-20 02:46:37,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:37,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:37,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:37,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:37,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859172323] [2023-12-20 02:46:37,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859172323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:37,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:37,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:37,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135016927] [2023-12-20 02:46:37,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:37,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:37,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:37,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:37,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:37,462 INFO L87 Difference]: Start difference. First operand 4342 states and 6181 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:37,542 INFO L93 Difference]: Finished difference Result 8335 states and 12072 transitions. [2023-12-20 02:46:37,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:37,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-20 02:46:37,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:37,549 INFO L225 Difference]: With dead ends: 8335 [2023-12-20 02:46:37,549 INFO L226 Difference]: Without dead ends: 4678 [2023-12-20 02:46:37,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:37,554 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 659 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:37,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 1014 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:46:37,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4678 states. [2023-12-20 02:46:37,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4678 to 3774. [2023-12-20 02:46:37,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3774 states, 3770 states have (on average 1.4347480106100796) internal successors, (5409), 3773 states have internal predecessors, (5409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3774 states to 3774 states and 5409 transitions. [2023-12-20 02:46:37,597 INFO L78 Accepts]: Start accepts. Automaton has 3774 states and 5409 transitions. Word has length 54 [2023-12-20 02:46:37,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:37,597 INFO L495 AbstractCegarLoop]: Abstraction has 3774 states and 5409 transitions. [2023-12-20 02:46:37,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3774 states and 5409 transitions. [2023-12-20 02:46:37,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:46:37,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:37,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:37,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:46:37,599 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:37,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:37,599 INFO L85 PathProgramCache]: Analyzing trace with hash -364061502, now seen corresponding path program 1 times [2023-12-20 02:46:37,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:37,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691919226] [2023-12-20 02:46:37,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:37,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:37,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:37,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:37,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691919226] [2023-12-20 02:46:37,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691919226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:37,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:37,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:37,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322581004] [2023-12-20 02:46:37,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:37,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:37,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:37,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:37,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:37,632 INFO L87 Difference]: Start difference. First operand 3774 states and 5409 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:37,712 INFO L93 Difference]: Finished difference Result 7568 states and 11011 transitions. [2023-12-20 02:46:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:37,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 54 [2023-12-20 02:46:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:37,718 INFO L225 Difference]: With dead ends: 7568 [2023-12-20 02:46:37,718 INFO L226 Difference]: Without dead ends: 4108 [2023-12-20 02:46:37,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:37,722 INFO L413 NwaCegarLoop]: 659 mSDtfsCounter, 552 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:37,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 915 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:46:37,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2023-12-20 02:46:37,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 3303. [2023-12-20 02:46:37,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3299 states have (on average 1.4483176720218247) internal successors, (4778), 3302 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 4778 transitions. [2023-12-20 02:46:37,758 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 4778 transitions. Word has length 54 [2023-12-20 02:46:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:37,758 INFO L495 AbstractCegarLoop]: Abstraction has 3303 states and 4778 transitions. [2023-12-20 02:46:37,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 4778 transitions. [2023-12-20 02:46:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-20 02:46:37,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:37,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:37,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:46:37,763 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:37,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:37,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1325150352, now seen corresponding path program 1 times [2023-12-20 02:46:37,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:37,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032330026] [2023-12-20 02:46:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:37,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:38,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:38,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:38,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032330026] [2023-12-20 02:46:38,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032330026] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:38,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:38,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-20 02:46:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627102700] [2023-12-20 02:46:38,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:38,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 02:46:38,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:38,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 02:46:38,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2023-12-20 02:46:38,437 INFO L87 Difference]: Start difference. First operand 3303 states and 4778 transitions. Second operand has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:40,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:40,521 INFO L93 Difference]: Finished difference Result 6716 states and 9713 transitions. [2023-12-20 02:46:40,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 02:46:40,522 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 states have internal predecessors, (55), 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 55 [2023-12-20 02:46:40,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:40,530 INFO L225 Difference]: With dead ends: 6716 [2023-12-20 02:46:40,530 INFO L226 Difference]: Without dead ends: 6712 [2023-12-20 02:46:40,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:46:40,533 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 4362 mSDsluCounter, 7618 mSDsCounter, 0 mSdLazyCounter, 3357 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 8341 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:40,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4362 Valid, 8341 Invalid, 3367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3357 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 02:46:40,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6712 states. [2023-12-20 02:46:40,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6712 to 3315. [2023-12-20 02:46:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3315 states, 3311 states have (on average 1.4482029598308668) internal successors, (4795), 3314 states have internal predecessors, (4795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:40,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3315 states to 3315 states and 4795 transitions. [2023-12-20 02:46:40,604 INFO L78 Accepts]: Start accepts. Automaton has 3315 states and 4795 transitions. Word has length 55 [2023-12-20 02:46:40,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:40,605 INFO L495 AbstractCegarLoop]: Abstraction has 3315 states and 4795 transitions. [2023-12-20 02:46:40,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 18 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:40,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3315 states and 4795 transitions. [2023-12-20 02:46:40,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-20 02:46:40,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:40,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:40,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:46:40,606 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:40,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:40,607 INFO L85 PathProgramCache]: Analyzing trace with hash -548611186, now seen corresponding path program 1 times [2023-12-20 02:46:40,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:40,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938283055] [2023-12-20 02:46:40,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:40,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:40,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:40,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:40,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938283055] [2023-12-20 02:46:40,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938283055] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:40,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:40,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:46:40,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553891275] [2023-12-20 02:46:40,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:40,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:46:40,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:40,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:46:40,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:46:40,954 INFO L87 Difference]: Start difference. First operand 3315 states and 4795 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:41,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:41,669 INFO L93 Difference]: Finished difference Result 7107 states and 10317 transitions. [2023-12-20 02:46:41,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 02:46:41,670 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 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 55 [2023-12-20 02:46:41,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:41,678 INFO L225 Difference]: With dead ends: 7107 [2023-12-20 02:46:41,678 INFO L226 Difference]: Without dead ends: 7011 [2023-12-20 02:46:41,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:46:41,680 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 4857 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4857 SdHoareTripleChecker+Valid, 2968 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:41,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4857 Valid, 2968 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:46:41,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7011 states. [2023-12-20 02:46:41,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7011 to 3268. [2023-12-20 02:46:41,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3268 states, 3266 states have (on average 1.4500918554807103) internal successors, (4736), 3267 states have internal predecessors, (4736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3268 states to 3268 states and 4736 transitions. [2023-12-20 02:46:41,723 INFO L78 Accepts]: Start accepts. Automaton has 3268 states and 4736 transitions. Word has length 55 [2023-12-20 02:46:41,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:41,724 INFO L495 AbstractCegarLoop]: Abstraction has 3268 states and 4736 transitions. [2023-12-20 02:46:41,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 10 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3268 states and 4736 transitions. [2023-12-20 02:46:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:46:41,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:41,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:41,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:46:41,725 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:41,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:41,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2003453, now seen corresponding path program 1 times [2023-12-20 02:46:41,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:41,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246302580] [2023-12-20 02:46:41,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:41,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:42,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:42,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246302580] [2023-12-20 02:46:42,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246302580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:42,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:42,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-20 02:46:42,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792235784] [2023-12-20 02:46:42,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:42,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-20 02:46:42,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:42,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-20 02:46:42,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:46:42,280 INFO L87 Difference]: Start difference. First operand 3268 states and 4736 transitions. Second operand has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 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) [2023-12-20 02:46:43,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:43,719 INFO L93 Difference]: Finished difference Result 6333 states and 9174 transitions. [2023-12-20 02:46:43,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 02:46:43,719 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 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 [2023-12-20 02:46:43,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:43,726 INFO L225 Difference]: With dead ends: 6333 [2023-12-20 02:46:43,726 INFO L226 Difference]: Without dead ends: 6256 [2023-12-20 02:46:43,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=176, Invalid=526, Unknown=0, NotChecked=0, Total=702 [2023-12-20 02:46:43,728 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 2450 mSDsluCounter, 5108 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2450 SdHoareTripleChecker+Valid, 5766 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:43,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2450 Valid, 5766 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:46:43,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6256 states. [2023-12-20 02:46:43,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6256 to 3259. [2023-12-20 02:46:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 3258 states have (on average 1.4499693063228976) internal successors, (4724), 3258 states have internal predecessors, (4724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:43,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 4724 transitions. [2023-12-20 02:46:43,766 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 4724 transitions. Word has length 56 [2023-12-20 02:46:43,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:43,766 INFO L495 AbstractCegarLoop]: Abstraction has 3259 states and 4724 transitions. [2023-12-20 02:46:43,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 14 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) [2023-12-20 02:46:43,766 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 4724 transitions. [2023-12-20 02:46:43,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-20 02:46:43,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:43,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:43,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:46:43,768 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:43,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:43,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1814443561, now seen corresponding path program 1 times [2023-12-20 02:46:43,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:43,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869587960] [2023-12-20 02:46:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:43,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:43,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:43,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869587960] [2023-12-20 02:46:43,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869587960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:43,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:43,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:46:43,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65242339] [2023-12-20 02:46:43,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:43,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:43,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:43,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:43,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:43,830 INFO L87 Difference]: Start difference. First operand 3259 states and 4724 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:43,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:43,937 INFO L93 Difference]: Finished difference Result 10216 states and 15117 transitions. [2023-12-20 02:46:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:43,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2023-12-20 02:46:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:43,955 INFO L225 Difference]: With dead ends: 10216 [2023-12-20 02:46:43,956 INFO L226 Difference]: Without dead ends: 7494 [2023-12-20 02:46:43,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:43,972 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 1652 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:43,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 1039 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:46:43,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7494 states. [2023-12-20 02:46:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7494 to 5678. [2023-12-20 02:46:44,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5678 states, 5677 states have (on average 1.447771710410428) internal successors, (8219), 5677 states have internal predecessors, (8219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5678 states to 5678 states and 8219 transitions. [2023-12-20 02:46:44,122 INFO L78 Accepts]: Start accepts. Automaton has 5678 states and 8219 transitions. Word has length 62 [2023-12-20 02:46:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:44,122 INFO L495 AbstractCegarLoop]: Abstraction has 5678 states and 8219 transitions. [2023-12-20 02:46:44,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5678 states and 8219 transitions. [2023-12-20 02:46:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-20 02:46:44,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:44,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:44,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 02:46:44,125 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:44,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:44,125 INFO L85 PathProgramCache]: Analyzing trace with hash 97835072, now seen corresponding path program 1 times [2023-12-20 02:46:44,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:44,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25099710] [2023-12-20 02:46:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:44,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:44,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:44,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25099710] [2023-12-20 02:46:44,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25099710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:44,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:44,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:46:44,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082395244] [2023-12-20 02:46:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:44,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:44,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:44,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:44,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:44,197 INFO L87 Difference]: Start difference. First operand 5678 states and 8219 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:44,269 INFO L93 Difference]: Finished difference Result 8910 states and 12938 transitions. [2023-12-20 02:46:44,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:44,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2023-12-20 02:46:44,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:44,274 INFO L225 Difference]: With dead ends: 8910 [2023-12-20 02:46:44,274 INFO L226 Difference]: Without dead ends: 3748 [2023-12-20 02:46:44,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:44,279 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 969 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:44,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 847 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:46:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2023-12-20 02:46:44,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3744. [2023-12-20 02:46:44,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3744 states, 3743 states have (on average 1.4218541277050494) internal successors, (5322), 3743 states have internal predecessors, (5322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3744 states to 3744 states and 5322 transitions. [2023-12-20 02:46:44,314 INFO L78 Accepts]: Start accepts. Automaton has 3744 states and 5322 transitions. Word has length 63 [2023-12-20 02:46:44,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:44,314 INFO L495 AbstractCegarLoop]: Abstraction has 3744 states and 5322 transitions. [2023-12-20 02:46:44,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3744 states and 5322 transitions. [2023-12-20 02:46:44,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-20 02:46:44,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:44,316 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:44,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 02:46:44,316 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:44,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:44,317 INFO L85 PathProgramCache]: Analyzing trace with hash -943856178, now seen corresponding path program 1 times [2023-12-20 02:46:44,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:44,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163591110] [2023-12-20 02:46:44,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:44,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:44,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:44,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163591110] [2023-12-20 02:46:44,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163591110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:44,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:44,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:44,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730541843] [2023-12-20 02:46:44,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:44,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:44,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:44,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:44,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:44,379 INFO L87 Difference]: Start difference. First operand 3744 states and 5322 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:44,433 INFO L93 Difference]: Finished difference Result 9886 states and 14248 transitions. [2023-12-20 02:46:44,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:44,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2023-12-20 02:46:44,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:44,440 INFO L225 Difference]: With dead ends: 9886 [2023-12-20 02:46:44,440 INFO L226 Difference]: Without dead ends: 6636 [2023-12-20 02:46:44,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:44,443 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 327 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:44,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 810 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6636 states. [2023-12-20 02:46:44,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6636 to 6218. [2023-12-20 02:46:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6218 states, 6217 states have (on average 1.4272156988901399) internal successors, (8873), 6217 states have internal predecessors, (8873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6218 states to 6218 states and 8873 transitions. [2023-12-20 02:46:44,506 INFO L78 Accepts]: Start accepts. Automaton has 6218 states and 8873 transitions. Word has length 65 [2023-12-20 02:46:44,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:44,506 INFO L495 AbstractCegarLoop]: Abstraction has 6218 states and 8873 transitions. [2023-12-20 02:46:44,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand 6218 states and 8873 transitions. [2023-12-20 02:46:44,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-20 02:46:44,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:44,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:44,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 02:46:44,508 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:44,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:44,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1925895447, now seen corresponding path program 1 times [2023-12-20 02:46:44,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:44,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765546261] [2023-12-20 02:46:44,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:44,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:44,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:44,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765546261] [2023-12-20 02:46:44,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765546261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:44,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:44,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:44,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688928012] [2023-12-20 02:46:44,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:44,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:44,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:44,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:44,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:44,566 INFO L87 Difference]: Start difference. First operand 6218 states and 8873 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:44,627 INFO L93 Difference]: Finished difference Result 17038 states and 24467 transitions. [2023-12-20 02:46:44,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:44,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2023-12-20 02:46:44,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:44,640 INFO L225 Difference]: With dead ends: 17038 [2023-12-20 02:46:44,640 INFO L226 Difference]: Without dead ends: 11314 [2023-12-20 02:46:44,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:44,647 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 279 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:44,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 837 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:44,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11314 states. [2023-12-20 02:46:44,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11314 to 10480. [2023-12-20 02:46:44,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10480 states, 10479 states have (on average 1.4238954098673537) internal successors, (14921), 10479 states have internal predecessors, (14921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10480 states to 10480 states and 14921 transitions. [2023-12-20 02:46:44,769 INFO L78 Accepts]: Start accepts. Automaton has 10480 states and 14921 transitions. Word has length 65 [2023-12-20 02:46:44,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:44,770 INFO L495 AbstractCegarLoop]: Abstraction has 10480 states and 14921 transitions. [2023-12-20 02:46:44,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:44,770 INFO L276 IsEmpty]: Start isEmpty. Operand 10480 states and 14921 transitions. [2023-12-20 02:46:44,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-20 02:46:44,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:44,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:44,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 02:46:44,771 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:44,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:44,772 INFO L85 PathProgramCache]: Analyzing trace with hash 721481883, now seen corresponding path program 1 times [2023-12-20 02:46:44,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:44,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547277149] [2023-12-20 02:46:44,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:44,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:44,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:44,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547277149] [2023-12-20 02:46:44,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547277149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:44,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:44,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:46:44,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440222369] [2023-12-20 02:46:44,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:44,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:46:44,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:44,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:46:44,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:46:44,918 INFO L87 Difference]: Start difference. First operand 10480 states and 14921 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:45,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:45,011 INFO L93 Difference]: Finished difference Result 22100 states and 31013 transitions. [2023-12-20 02:46:45,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:46:45,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 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 67 [2023-12-20 02:46:45,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:45,041 INFO L225 Difference]: With dead ends: 22100 [2023-12-20 02:46:45,041 INFO L226 Difference]: Without dead ends: 22098 [2023-12-20 02:46:45,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:46:45,049 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 619 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:45,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 2301 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:45,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22098 states. [2023-12-20 02:46:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22098 to 11368. [2023-12-20 02:46:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11368 states, 11367 states have (on average 1.3907803290226093) internal successors, (15809), 11367 states have internal predecessors, (15809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:45,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11368 states to 11368 states and 15809 transitions. [2023-12-20 02:46:45,224 INFO L78 Accepts]: Start accepts. Automaton has 11368 states and 15809 transitions. Word has length 67 [2023-12-20 02:46:45,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:45,225 INFO L495 AbstractCegarLoop]: Abstraction has 11368 states and 15809 transitions. [2023-12-20 02:46:45,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 11368 states and 15809 transitions. [2023-12-20 02:46:45,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:46:45,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:45,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:45,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 02:46:45,227 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:45,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:45,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1011663334, now seen corresponding path program 1 times [2023-12-20 02:46:45,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:45,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304982122] [2023-12-20 02:46:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:45,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:45,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:45,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:45,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304982122] [2023-12-20 02:46:45,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304982122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:45,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:45,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:45,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744491105] [2023-12-20 02:46:45,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:45,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:45,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:45,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:45,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:45,264 INFO L87 Difference]: Start difference. First operand 11368 states and 15809 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:45,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:45,347 INFO L93 Difference]: Finished difference Result 30688 states and 42797 transitions. [2023-12-20 02:46:45,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:45,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2023-12-20 02:46:45,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:45,367 INFO L225 Difference]: With dead ends: 30688 [2023-12-20 02:46:45,367 INFO L226 Difference]: Without dead ends: 19802 [2023-12-20 02:46:45,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:45,380 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 306 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:45,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 764 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:45,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19802 states. [2023-12-20 02:46:45,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19802 to 19504. [2023-12-20 02:46:45,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19504 states, 19503 states have (on average 1.3663026201097268) internal successors, (26647), 19503 states have internal predecessors, (26647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19504 states to 19504 states and 26647 transitions. [2023-12-20 02:46:45,598 INFO L78 Accepts]: Start accepts. Automaton has 19504 states and 26647 transitions. Word has length 68 [2023-12-20 02:46:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:45,598 INFO L495 AbstractCegarLoop]: Abstraction has 19504 states and 26647 transitions. [2023-12-20 02:46:45,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 19504 states and 26647 transitions. [2023-12-20 02:46:45,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 02:46:45,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:45,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:45,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 02:46:45,601 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:45,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1324071959, now seen corresponding path program 1 times [2023-12-20 02:46:45,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:45,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842768966] [2023-12-20 02:46:45,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:45,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:45,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:45,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842768966] [2023-12-20 02:46:45,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842768966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:45,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:45,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:46:45,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431449068] [2023-12-20 02:46:45,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:45,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:45,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:45,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:45,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:45,663 INFO L87 Difference]: Start difference. First operand 19504 states and 26647 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:45,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:45,788 INFO L93 Difference]: Finished difference Result 34338 states and 47085 transitions. [2023-12-20 02:46:45,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:45,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 72 [2023-12-20 02:46:45,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:45,823 INFO L225 Difference]: With dead ends: 34338 [2023-12-20 02:46:45,823 INFO L226 Difference]: Without dead ends: 28084 [2023-12-20 02:46:45,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:45,836 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 1065 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:45,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1257 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28084 states. [2023-12-20 02:46:46,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28084 to 24457. [2023-12-20 02:46:46,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24457 states, 24456 states have (on average 1.361465489041544) internal successors, (33296), 24456 states have internal predecessors, (33296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:46,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24457 states to 24457 states and 33296 transitions. [2023-12-20 02:46:46,330 INFO L78 Accepts]: Start accepts. Automaton has 24457 states and 33296 transitions. Word has length 72 [2023-12-20 02:46:46,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:46,330 INFO L495 AbstractCegarLoop]: Abstraction has 24457 states and 33296 transitions. [2023-12-20 02:46:46,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:46,330 INFO L276 IsEmpty]: Start isEmpty. Operand 24457 states and 33296 transitions. [2023-12-20 02:46:46,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:46:46,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:46,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:46,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 02:46:46,332 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:46,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:46,333 INFO L85 PathProgramCache]: Analyzing trace with hash -443814493, now seen corresponding path program 1 times [2023-12-20 02:46:46,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:46,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625509328] [2023-12-20 02:46:46,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:46,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:46,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:46,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:46,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625509328] [2023-12-20 02:46:46,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625509328] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:46,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:46,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:46:46,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271444587] [2023-12-20 02:46:46,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:46,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:46,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:46,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:46,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:46,409 INFO L87 Difference]: Start difference. First operand 24457 states and 33296 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 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) [2023-12-20 02:46:46,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:46,535 INFO L93 Difference]: Finished difference Result 37658 states and 51489 transitions. [2023-12-20 02:46:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:46,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 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 73 [2023-12-20 02:46:46,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:46,573 INFO L225 Difference]: With dead ends: 37658 [2023-12-20 02:46:46,573 INFO L226 Difference]: Without dead ends: 31404 [2023-12-20 02:46:46,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:46,589 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 1074 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:46,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 1273 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:46,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31404 states. [2023-12-20 02:46:46,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31404 to 29410. [2023-12-20 02:46:46,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29410 states, 29409 states have (on average 1.3582576762215648) internal successors, (39945), 29409 states have internal predecessors, (39945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:46,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29410 states to 29410 states and 39945 transitions. [2023-12-20 02:46:46,985 INFO L78 Accepts]: Start accepts. Automaton has 29410 states and 39945 transitions. Word has length 73 [2023-12-20 02:46:46,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:46,985 INFO L495 AbstractCegarLoop]: Abstraction has 29410 states and 39945 transitions. [2023-12-20 02:46:46,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 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) [2023-12-20 02:46:46,985 INFO L276 IsEmpty]: Start isEmpty. Operand 29410 states and 39945 transitions. [2023-12-20 02:46:46,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:46:46,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:46,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:46,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 02:46:46,987 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:46,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:46,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2082299995, now seen corresponding path program 1 times [2023-12-20 02:46:46,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:46,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124540585] [2023-12-20 02:46:46,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:46,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:47,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:47,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:47,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124540585] [2023-12-20 02:46:47,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124540585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:47,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:47,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:46:47,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389047957] [2023-12-20 02:46:47,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:47,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:47,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:47,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:47,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:47,066 INFO L87 Difference]: Start difference. First operand 29410 states and 39945 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 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) [2023-12-20 02:46:47,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:47,279 INFO L93 Difference]: Finished difference Result 42674 states and 58121 transitions. [2023-12-20 02:46:47,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:47,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 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 73 [2023-12-20 02:46:47,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:47,325 INFO L225 Difference]: With dead ends: 42674 [2023-12-20 02:46:47,325 INFO L226 Difference]: Without dead ends: 36380 [2023-12-20 02:46:47,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:47,338 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 978 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:47,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 1380 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36380 states. [2023-12-20 02:46:47,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36380 to 34386. [2023-12-20 02:46:47,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34386 states, 34385 states have (on average 1.3549222044496148) internal successors, (46589), 34385 states have internal predecessors, (46589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34386 states to 34386 states and 46589 transitions. [2023-12-20 02:46:47,744 INFO L78 Accepts]: Start accepts. Automaton has 34386 states and 46589 transitions. Word has length 73 [2023-12-20 02:46:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:47,744 INFO L495 AbstractCegarLoop]: Abstraction has 34386 states and 46589 transitions. [2023-12-20 02:46:47,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 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) [2023-12-20 02:46:47,744 INFO L276 IsEmpty]: Start isEmpty. Operand 34386 states and 46589 transitions. [2023-12-20 02:46:47,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-20 02:46:47,748 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:47,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:47,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 02:46:47,748 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:47,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:47,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1153445703, now seen corresponding path program 1 times [2023-12-20 02:46:47,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647396697] [2023-12-20 02:46:47,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:47,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:47,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:47,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647396697] [2023-12-20 02:46:47,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647396697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:47,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:47,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:46:47,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504693486] [2023-12-20 02:46:47,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:47,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:47,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:47,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:47,957 INFO L87 Difference]: Start difference. First operand 34386 states and 46589 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:48,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:48,090 INFO L93 Difference]: Finished difference Result 47308 states and 64228 transitions. [2023-12-20 02:46:48,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:48,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2023-12-20 02:46:48,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:48,130 INFO L225 Difference]: With dead ends: 47308 [2023-12-20 02:46:48,131 INFO L226 Difference]: Without dead ends: 36102 [2023-12-20 02:46:48,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:48,145 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 1049 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:48,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 1257 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:48,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36102 states. [2023-12-20 02:46:48,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36102 to 34110. [2023-12-20 02:46:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34110 states, 34109 states have (on average 1.3523996599138057) internal successors, (46129), 34109 states have internal predecessors, (46129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:48,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34110 states to 34110 states and 46129 transitions. [2023-12-20 02:46:48,613 INFO L78 Accepts]: Start accepts. Automaton has 34110 states and 46129 transitions. Word has length 80 [2023-12-20 02:46:48,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:48,613 INFO L495 AbstractCegarLoop]: Abstraction has 34110 states and 46129 transitions. [2023-12-20 02:46:48,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:48,613 INFO L276 IsEmpty]: Start isEmpty. Operand 34110 states and 46129 transitions. [2023-12-20 02:46:48,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-20 02:46:48,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:48,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:48,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 02:46:48,616 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:48,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:48,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1749950085, now seen corresponding path program 1 times [2023-12-20 02:46:48,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:48,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415743644] [2023-12-20 02:46:48,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:48,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:48,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:48,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:48,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:48,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415743644] [2023-12-20 02:46:48,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415743644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:48,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:48,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:46:48,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763348107] [2023-12-20 02:46:48,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:48,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:48,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:48,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:48,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:48,715 INFO L87 Difference]: Start difference. First operand 34110 states and 46129 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:48,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:48,957 INFO L93 Difference]: Finished difference Result 47032 states and 63768 transitions. [2023-12-20 02:46:48,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:48,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2023-12-20 02:46:48,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:48,991 INFO L225 Difference]: With dead ends: 47032 [2023-12-20 02:46:48,991 INFO L226 Difference]: Without dead ends: 35826 [2023-12-20 02:46:48,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:49,002 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 1064 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:49,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 1253 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35826 states. [2023-12-20 02:46:49,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35826 to 33834. [2023-12-20 02:46:49,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33834 states, 33833 states have (on average 1.3498359589749653) internal successors, (45669), 33833 states have internal predecessors, (45669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:49,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33834 states to 33834 states and 45669 transitions. [2023-12-20 02:46:49,428 INFO L78 Accepts]: Start accepts. Automaton has 33834 states and 45669 transitions. Word has length 80 [2023-12-20 02:46:49,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:49,428 INFO L495 AbstractCegarLoop]: Abstraction has 33834 states and 45669 transitions. [2023-12-20 02:46:49,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 33834 states and 45669 transitions. [2023-12-20 02:46:49,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-20 02:46:49,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:49,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:49,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 02:46:49,432 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:49,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:49,432 INFO L85 PathProgramCache]: Analyzing trace with hash -728575796, now seen corresponding path program 1 times [2023-12-20 02:46:49,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:49,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359212069] [2023-12-20 02:46:49,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:49,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:49,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:49,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:49,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359212069] [2023-12-20 02:46:49,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359212069] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:49,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:49,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:46:49,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911215753] [2023-12-20 02:46:49,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:49,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:46:49,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:49,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:46:49,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:49,505 INFO L87 Difference]: Start difference. First operand 33834 states and 45669 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:50,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:50,080 INFO L93 Difference]: Finished difference Result 41934 states and 56479 transitions. [2023-12-20 02:46:50,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:46:50,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 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 [2023-12-20 02:46:50,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:50,131 INFO L225 Difference]: With dead ends: 41934 [2023-12-20 02:46:50,132 INFO L226 Difference]: Without dead ends: 41386 [2023-12-20 02:46:50,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:46:50,141 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 2257 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:50,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 702 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:46:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41386 states. [2023-12-20 02:46:50,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41386 to 33833. [2023-12-20 02:46:50,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33833 states, 33832 states have (on average 1.3497871837313786) internal successors, (45666), 33832 states have internal predecessors, (45666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:50,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33833 states to 33833 states and 45666 transitions. [2023-12-20 02:46:50,485 INFO L78 Accepts]: Start accepts. Automaton has 33833 states and 45666 transitions. Word has length 81 [2023-12-20 02:46:50,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:50,485 INFO L495 AbstractCegarLoop]: Abstraction has 33833 states and 45666 transitions. [2023-12-20 02:46:50,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 33833 states and 45666 transitions. [2023-12-20 02:46:50,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-20 02:46:50,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:50,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:50,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 02:46:50,489 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:50,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:50,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1496981479, now seen corresponding path program 1 times [2023-12-20 02:46:50,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:50,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084973537] [2023-12-20 02:46:50,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:50,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:50,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:50,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:50,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084973537] [2023-12-20 02:46:50,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084973537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:50,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:50,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:46:50,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481249139] [2023-12-20 02:46:50,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:50,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:46:50,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:50,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:46:50,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:46:50,572 INFO L87 Difference]: Start difference. First operand 33833 states and 45666 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:51,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:51,064 INFO L93 Difference]: Finished difference Result 41933 states and 56476 transitions. [2023-12-20 02:46:51,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:46:51,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 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 [2023-12-20 02:46:51,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:51,109 INFO L225 Difference]: With dead ends: 41933 [2023-12-20 02:46:51,109 INFO L226 Difference]: Without dead ends: 41385 [2023-12-20 02:46:51,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:46:51,123 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 2252 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2252 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:51,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2252 Valid, 700 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:46:51,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41385 states. [2023-12-20 02:46:51,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41385 to 33832. [2023-12-20 02:46:51,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33832 states, 33831 states have (on average 1.3497384056043273) internal successors, (45663), 33831 states have internal predecessors, (45663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:51,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33832 states to 33832 states and 45663 transitions. [2023-12-20 02:46:51,838 INFO L78 Accepts]: Start accepts. Automaton has 33832 states and 45663 transitions. Word has length 81 [2023-12-20 02:46:51,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:51,838 INFO L495 AbstractCegarLoop]: Abstraction has 33832 states and 45663 transitions. [2023-12-20 02:46:51,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:51,838 INFO L276 IsEmpty]: Start isEmpty. Operand 33832 states and 45663 transitions. [2023-12-20 02:46:51,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-20 02:46:51,844 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:51,844 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:51,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 02:46:51,844 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:51,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:51,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1436824204, now seen corresponding path program 1 times [2023-12-20 02:46:51,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:51,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346729503] [2023-12-20 02:46:51,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:51,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:52,011 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:46:52,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:52,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346729503] [2023-12-20 02:46:52,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346729503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:52,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:52,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:46:52,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814680744] [2023-12-20 02:46:52,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:52,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:46:52,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:52,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:46:52,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:46:52,012 INFO L87 Difference]: Start difference. First operand 33832 states and 45663 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:53,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:53,043 INFO L93 Difference]: Finished difference Result 89739 states and 119462 transitions. [2023-12-20 02:46:53,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:46:53,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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 [2023-12-20 02:46:53,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:53,123 INFO L225 Difference]: With dead ends: 89739 [2023-12-20 02:46:53,123 INFO L226 Difference]: Without dead ends: 74212 [2023-12-20 02:46:53,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:46:53,144 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 2090 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:53,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 1589 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:46:53,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74212 states. [2023-12-20 02:46:53,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74212 to 33812. [2023-12-20 02:46:53,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33812 states, 33811 states have (on average 1.3498565555588418) internal successors, (45640), 33811 states have internal predecessors, (45640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33812 states to 33812 states and 45640 transitions. [2023-12-20 02:46:53,689 INFO L78 Accepts]: Start accepts. Automaton has 33812 states and 45640 transitions. Word has length 87 [2023-12-20 02:46:53,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:53,689 INFO L495 AbstractCegarLoop]: Abstraction has 33812 states and 45640 transitions. [2023-12-20 02:46:53,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:53,689 INFO L276 IsEmpty]: Start isEmpty. Operand 33812 states and 45640 transitions. [2023-12-20 02:46:53,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-20 02:46:53,696 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:53,696 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:53,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 02:46:53,696 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:53,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:53,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1871965660, now seen corresponding path program 1 times [2023-12-20 02:46:53,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:53,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209078619] [2023-12-20 02:46:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:53,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:53,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:53,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209078619] [2023-12-20 02:46:53,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209078619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:53,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:53,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:46:53,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540971224] [2023-12-20 02:46:53,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:53,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:46:53,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:53,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:46:53,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:46:53,834 INFO L87 Difference]: Start difference. First operand 33812 states and 45640 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:54,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:54,903 INFO L93 Difference]: Finished difference Result 85795 states and 113878 transitions. [2023-12-20 02:46:54,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:46:54,903 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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 88 [2023-12-20 02:46:54,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:54,987 INFO L225 Difference]: With dead ends: 85795 [2023-12-20 02:46:54,987 INFO L226 Difference]: Without dead ends: 70289 [2023-12-20 02:46:55,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:46:55,016 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 2250 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:55,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 1500 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:46:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70289 states. [2023-12-20 02:46:55,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70289 to 34267. [2023-12-20 02:46:55,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34267 states, 34266 states have (on average 1.3483628086149535) internal successors, (46203), 34266 states have internal predecessors, (46203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:55,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34267 states to 34267 states and 46203 transitions. [2023-12-20 02:46:55,617 INFO L78 Accepts]: Start accepts. Automaton has 34267 states and 46203 transitions. Word has length 88 [2023-12-20 02:46:55,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:55,618 INFO L495 AbstractCegarLoop]: Abstraction has 34267 states and 46203 transitions. [2023-12-20 02:46:55,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand 34267 states and 46203 transitions. [2023-12-20 02:46:55,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-20 02:46:55,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:55,625 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:55,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 02:46:55,626 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:55,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:55,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1525050307, now seen corresponding path program 1 times [2023-12-20 02:46:55,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:55,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607332281] [2023-12-20 02:46:55,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:55,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:55,887 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:55,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:55,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607332281] [2023-12-20 02:46:55,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607332281] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:46:55,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894697831] [2023-12-20 02:46:55,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:55,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:46:55,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:46:55,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:46:55,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 02:46:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:56,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 02:46:56,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:46:56,666 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:56,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:46:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:57,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894697831] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:46:57,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:46:57,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2023-12-20 02:46:57,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547511587] [2023-12-20 02:46:57,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:46:57,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:46:57,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:57,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:46:57,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:46:57,164 INFO L87 Difference]: Start difference. First operand 34267 states and 46203 transitions. Second operand has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 22 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:59,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:59,802 INFO L93 Difference]: Finished difference Result 165464 states and 221029 transitions. [2023-12-20 02:46:59,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-20 02:46:59,802 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 22 states have internal predecessors, (222), 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 88 [2023-12-20 02:46:59,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:59,962 INFO L225 Difference]: With dead ends: 165464 [2023-12-20 02:46:59,963 INFO L226 Difference]: Without dead ends: 150150 [2023-12-20 02:46:59,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=757, Invalid=2783, Unknown=0, NotChecked=0, Total=3540 [2023-12-20 02:46:59,988 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 6828 mSDsluCounter, 3475 mSDsCounter, 0 mSdLazyCounter, 3689 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6828 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 3747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:59,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6828 Valid, 3832 Invalid, 3747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3689 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 02:47:00,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150150 states. [2023-12-20 02:47:00,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150150 to 34947. [2023-12-20 02:47:00,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34947 states, 34946 states have (on average 1.3481085102729926) internal successors, (47111), 34946 states have internal predecessors, (47111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:00,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34947 states to 34947 states and 47111 transitions. [2023-12-20 02:47:00,977 INFO L78 Accepts]: Start accepts. Automaton has 34947 states and 47111 transitions. Word has length 88 [2023-12-20 02:47:00,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:00,977 INFO L495 AbstractCegarLoop]: Abstraction has 34947 states and 47111 transitions. [2023-12-20 02:47:00,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 22 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 34947 states and 47111 transitions. [2023-12-20 02:47:00,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-20 02:47:00,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:00,985 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:00,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 02:47:01,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:01,190 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:01,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:01,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1638706285, now seen corresponding path program 1 times [2023-12-20 02:47:01,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:01,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778111476] [2023-12-20 02:47:01,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:01,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:01,324 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:47:01,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:01,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778111476] [2023-12-20 02:47:01,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778111476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:01,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:01,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:47:01,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697676127] [2023-12-20 02:47:01,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:01,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:47:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:47:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:47:01,326 INFO L87 Difference]: Start difference. First operand 34947 states and 47111 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2023-12-20 02:47:02,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:02,167 INFO L93 Difference]: Finished difference Result 86847 states and 116919 transitions. [2023-12-20 02:47:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 02:47:02,168 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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 88 [2023-12-20 02:47:02,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:02,241 INFO L225 Difference]: With dead ends: 86847 [2023-12-20 02:47:02,241 INFO L226 Difference]: Without dead ends: 71515 [2023-12-20 02:47:02,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:47:02,256 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 1717 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:02,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 1382 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:47:02,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71515 states. [2023-12-20 02:47:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71515 to 34935. [2023-12-20 02:47:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34935 states, 34934 states have (on average 1.3481994618423312) internal successors, (47098), 34934 states have internal predecessors, (47098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:02,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34935 states to 34935 states and 47098 transitions. [2023-12-20 02:47:02,797 INFO L78 Accepts]: Start accepts. Automaton has 34935 states and 47098 transitions. Word has length 88 [2023-12-20 02:47:02,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:02,797 INFO L495 AbstractCegarLoop]: Abstraction has 34935 states and 47098 transitions. [2023-12-20 02:47:02,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 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) [2023-12-20 02:47:02,797 INFO L276 IsEmpty]: Start isEmpty. Operand 34935 states and 47098 transitions. [2023-12-20 02:47:02,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 02:47:02,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:02,808 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:02,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 02:47:02,809 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:02,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1887765159, now seen corresponding path program 1 times [2023-12-20 02:47:02,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:02,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902962180] [2023-12-20 02:47:02,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:02,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:02,911 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:02,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:02,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902962180] [2023-12-20 02:47:02,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902962180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:02,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:02,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:47:02,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984809446] [2023-12-20 02:47:02,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:02,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:47:02,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:47:02,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:02,912 INFO L87 Difference]: Start difference. First operand 34935 states and 47098 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) [2023-12-20 02:47:03,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:03,069 INFO L93 Difference]: Finished difference Result 68275 states and 92200 transitions. [2023-12-20 02:47:03,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:47:03,069 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 [2023-12-20 02:47:03,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:03,105 INFO L225 Difference]: With dead ends: 68275 [2023-12-20 02:47:03,106 INFO L226 Difference]: Without dead ends: 34721 [2023-12-20 02:47:03,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:03,127 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 172 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:03,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 872 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:47:03,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34721 states. [2023-12-20 02:47:03,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34721 to 34719. [2023-12-20 02:47:03,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34719 states, 34718 states have (on average 1.3323348119131286) internal successors, (46256), 34718 states have internal predecessors, (46256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34719 states to 34719 states and 46256 transitions. [2023-12-20 02:47:03,615 INFO L78 Accepts]: Start accepts. Automaton has 34719 states and 46256 transitions. Word has length 89 [2023-12-20 02:47:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:03,615 INFO L495 AbstractCegarLoop]: Abstraction has 34719 states and 46256 transitions. [2023-12-20 02:47:03,615 INFO L496 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) [2023-12-20 02:47:03,615 INFO L276 IsEmpty]: Start isEmpty. Operand 34719 states and 46256 transitions. [2023-12-20 02:47:03,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 02:47:03,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:03,620 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:03,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 02:47:03,620 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:03,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:03,620 INFO L85 PathProgramCache]: Analyzing trace with hash 592654336, now seen corresponding path program 1 times [2023-12-20 02:47:03,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:03,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175972624] [2023-12-20 02:47:03,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:03,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:03,813 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:03,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:03,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175972624] [2023-12-20 02:47:03,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175972624] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:03,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261828364] [2023-12-20 02:47:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:03,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:03,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:03,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:03,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 02:47:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:04,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 02:47:04,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:04,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:04,253 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:04,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261828364] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:04,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:04,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-12-20 02:47:04,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913822935] [2023-12-20 02:47:04,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:04,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:47:04,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:04,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:47:04,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:47:04,255 INFO L87 Difference]: Start difference. First operand 34719 states and 46256 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:04,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:04,554 INFO L93 Difference]: Finished difference Result 104123 states and 137782 transitions. [2023-12-20 02:47:04,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:47:04,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 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 [2023-12-20 02:47:04,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:04,637 INFO L225 Difference]: With dead ends: 104123 [2023-12-20 02:47:04,637 INFO L226 Difference]: Without dead ends: 70785 [2023-12-20 02:47:04,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 173 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:47:04,670 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 1435 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:04,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 1789 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:47:04,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70785 states. [2023-12-20 02:47:05,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70785 to 46331. [2023-12-20 02:47:05,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46331 states, 46330 states have (on average 1.3259227282538313) internal successors, (61430), 46330 states have internal predecessors, (61430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46331 states to 46331 states and 61430 transitions. [2023-12-20 02:47:05,392 INFO L78 Accepts]: Start accepts. Automaton has 46331 states and 61430 transitions. Word has length 89 [2023-12-20 02:47:05,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:05,393 INFO L495 AbstractCegarLoop]: Abstraction has 46331 states and 61430 transitions. [2023-12-20 02:47:05,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 8 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:05,393 INFO L276 IsEmpty]: Start isEmpty. Operand 46331 states and 61430 transitions. [2023-12-20 02:47:05,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 02:47:05,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:05,399 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:05,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 02:47:05,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-12-20 02:47:05,605 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:05,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:05,605 INFO L85 PathProgramCache]: Analyzing trace with hash -917036055, now seen corresponding path program 1 times [2023-12-20 02:47:05,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:05,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044728716] [2023-12-20 02:47:05,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:05,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:05,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:05,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044728716] [2023-12-20 02:47:05,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044728716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:05,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:05,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:47:05,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954201578] [2023-12-20 02:47:05,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:05,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:47:05,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:05,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:47:05,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:47:05,681 INFO L87 Difference]: Start difference. First operand 46331 states and 61430 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:06,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:06,531 INFO L93 Difference]: Finished difference Result 160888 states and 213108 transitions. [2023-12-20 02:47:06,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:47:06,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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 [2023-12-20 02:47:06,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:06,679 INFO L225 Difference]: With dead ends: 160888 [2023-12-20 02:47:06,679 INFO L226 Difference]: Without dead ends: 115569 [2023-12-20 02:47:06,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:47:06,701 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 1149 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:06,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 876 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:47:06,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115569 states. [2023-12-20 02:47:07,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115569 to 60918. [2023-12-20 02:47:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60918 states, 60917 states have (on average 1.2920695372391944) internal successors, (78709), 60917 states have internal predecessors, (78709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:07,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60918 states to 60918 states and 78709 transitions. [2023-12-20 02:47:07,913 INFO L78 Accepts]: Start accepts. Automaton has 60918 states and 78709 transitions. Word has length 91 [2023-12-20 02:47:07,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:07,913 INFO L495 AbstractCegarLoop]: Abstraction has 60918 states and 78709 transitions. [2023-12-20 02:47:07,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:07,913 INFO L276 IsEmpty]: Start isEmpty. Operand 60918 states and 78709 transitions. [2023-12-20 02:47:07,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 02:47:07,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:07,917 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:07,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 02:47:07,918 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:07,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:07,918 INFO L85 PathProgramCache]: Analyzing trace with hash -639194734, now seen corresponding path program 1 times [2023-12-20 02:47:07,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:07,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723780060] [2023-12-20 02:47:07,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:07,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:07,981 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:07,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:07,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723780060] [2023-12-20 02:47:07,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723780060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:07,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:07,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:47:07,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69369930] [2023-12-20 02:47:07,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:07,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:47:07,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:07,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:47:07,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:47:07,983 INFO L87 Difference]: Start difference. First operand 60918 states and 78709 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:08,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:08,567 INFO L93 Difference]: Finished difference Result 139564 states and 179921 transitions. [2023-12-20 02:47:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:47:08,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 92 [2023-12-20 02:47:08,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:08,658 INFO L225 Difference]: With dead ends: 139564 [2023-12-20 02:47:08,658 INFO L226 Difference]: Without dead ends: 79369 [2023-12-20 02:47:08,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:47:08,700 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1152 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:08,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 680 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:47:08,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79369 states. [2023-12-20 02:47:09,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79369 to 58381. [2023-12-20 02:47:09,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58381 states, 58380 states have (on average 1.2604830421377184) internal successors, (73587), 58380 states have internal predecessors, (73587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:09,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58381 states to 58381 states and 73587 transitions. [2023-12-20 02:47:09,644 INFO L78 Accepts]: Start accepts. Automaton has 58381 states and 73587 transitions. Word has length 92 [2023-12-20 02:47:09,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:09,644 INFO L495 AbstractCegarLoop]: Abstraction has 58381 states and 73587 transitions. [2023-12-20 02:47:09,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:09,644 INFO L276 IsEmpty]: Start isEmpty. Operand 58381 states and 73587 transitions. [2023-12-20 02:47:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 02:47:09,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:09,649 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:09,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 02:47:09,649 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:09,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:09,650 INFO L85 PathProgramCache]: Analyzing trace with hash -42999330, now seen corresponding path program 1 times [2023-12-20 02:47:09,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:09,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214501774] [2023-12-20 02:47:09,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:09,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:09,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:09,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:09,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214501774] [2023-12-20 02:47:09,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214501774] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:09,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:09,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:47:09,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198532457] [2023-12-20 02:47:09,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:09,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:47:09,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:09,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:47:09,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:09,684 INFO L87 Difference]: Start difference. First operand 58381 states and 73587 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:09,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:09,832 INFO L93 Difference]: Finished difference Result 73019 states and 91802 transitions. [2023-12-20 02:47:09,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:47:09,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2023-12-20 02:47:09,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:09,876 INFO L225 Difference]: With dead ends: 73019 [2023-12-20 02:47:09,877 INFO L226 Difference]: Without dead ends: 43440 [2023-12-20 02:47:09,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:09,897 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 161 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:09,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 838 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:47:09,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43440 states. [2023-12-20 02:47:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43440 to 43265. [2023-12-20 02:47:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43265 states, 43264 states have (on average 1.2478272928994083) internal successors, (53986), 43264 states have internal predecessors, (53986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:10,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43265 states to 43265 states and 53986 transitions. [2023-12-20 02:47:10,486 INFO L78 Accepts]: Start accepts. Automaton has 43265 states and 53986 transitions. Word has length 92 [2023-12-20 02:47:10,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:10,486 INFO L495 AbstractCegarLoop]: Abstraction has 43265 states and 53986 transitions. [2023-12-20 02:47:10,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:10,486 INFO L276 IsEmpty]: Start isEmpty. Operand 43265 states and 53986 transitions. [2023-12-20 02:47:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:47:10,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:10,490 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:10,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 02:47:10,491 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:10,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:10,491 INFO L85 PathProgramCache]: Analyzing trace with hash 658093618, now seen corresponding path program 1 times [2023-12-20 02:47:10,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:10,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757137090] [2023-12-20 02:47:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:10,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:10,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:10,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757137090] [2023-12-20 02:47:10,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757137090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:10,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:10,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:47:10,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758749133] [2023-12-20 02:47:10,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:10,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:47:10,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:10,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:47:10,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:10,534 INFO L87 Difference]: Start difference. First operand 43265 states and 53986 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:10,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:10,824 INFO L93 Difference]: Finished difference Result 55054 states and 68473 transitions. [2023-12-20 02:47:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:47:10,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 [2023-12-20 02:47:10,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:10,860 INFO L225 Difference]: With dead ends: 55054 [2023-12-20 02:47:10,860 INFO L226 Difference]: Without dead ends: 30551 [2023-12-20 02:47:10,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:10,874 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 168 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:10,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 837 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:47:10,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30551 states. [2023-12-20 02:47:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30551 to 30519. [2023-12-20 02:47:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30519 states, 30518 states have (on average 1.2307162985778886) internal successors, (37559), 30518 states have internal predecessors, (37559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30519 states to 30519 states and 37559 transitions. [2023-12-20 02:47:11,134 INFO L78 Accepts]: Start accepts. Automaton has 30519 states and 37559 transitions. Word has length 93 [2023-12-20 02:47:11,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:11,134 INFO L495 AbstractCegarLoop]: Abstraction has 30519 states and 37559 transitions. [2023-12-20 02:47:11,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:11,134 INFO L276 IsEmpty]: Start isEmpty. Operand 30519 states and 37559 transitions. [2023-12-20 02:47:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 02:47:11,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:11,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:11,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-20 02:47:11,138 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:11,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:11,139 INFO L85 PathProgramCache]: Analyzing trace with hash 428331928, now seen corresponding path program 1 times [2023-12-20 02:47:11,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:11,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368877174] [2023-12-20 02:47:11,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:11,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:11,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-20 02:47:11,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:11,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368877174] [2023-12-20 02:47:11,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368877174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:11,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:11,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:47:11,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745888589] [2023-12-20 02:47:11,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:11,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:47:11,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:11,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:47:11,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:11,180 INFO L87 Difference]: Start difference. First operand 30519 states and 37559 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:11,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:11,450 INFO L93 Difference]: Finished difference Result 39190 states and 48200 transitions. [2023-12-20 02:47:11,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:47:11,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 95 [2023-12-20 02:47:11,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:11,467 INFO L225 Difference]: With dead ends: 39190 [2023-12-20 02:47:11,468 INFO L226 Difference]: Without dead ends: 20516 [2023-12-20 02:47:11,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:11,475 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 140 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:11,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 849 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:47:11,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20516 states. [2023-12-20 02:47:11,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20516 to 20449. [2023-12-20 02:47:11,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20449 states, 20448 states have (on average 1.2127836463223787) internal successors, (24799), 20448 states have internal predecessors, (24799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:11,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20449 states to 20449 states and 24799 transitions. [2023-12-20 02:47:11,625 INFO L78 Accepts]: Start accepts. Automaton has 20449 states and 24799 transitions. Word has length 95 [2023-12-20 02:47:11,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:11,626 INFO L495 AbstractCegarLoop]: Abstraction has 20449 states and 24799 transitions. [2023-12-20 02:47:11,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:11,626 INFO L276 IsEmpty]: Start isEmpty. Operand 20449 states and 24799 transitions. [2023-12-20 02:47:11,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 02:47:11,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:11,629 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:11,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-20 02:47:11,629 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:11,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:11,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1529822711, now seen corresponding path program 1 times [2023-12-20 02:47:11,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:11,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497486236] [2023-12-20 02:47:11,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:11,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:11,680 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:11,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:11,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497486236] [2023-12-20 02:47:11,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497486236] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:11,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28483958] [2023-12-20 02:47:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:11,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:11,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:11,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:11,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 02:47:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:11,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 02:47:11,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:12,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:12,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28483958] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:12,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:12,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-20 02:47:12,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964699703] [2023-12-20 02:47:12,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:12,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:47:12,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:12,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:47:12,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:47:12,215 INFO L87 Difference]: Start difference. First operand 20449 states and 24799 transitions. Second operand has 14 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:12,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:12,918 INFO L93 Difference]: Finished difference Result 42508 states and 51368 transitions. [2023-12-20 02:47:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 02:47:12,919 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 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 95 [2023-12-20 02:47:12,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:12,942 INFO L225 Difference]: With dead ends: 42508 [2023-12-20 02:47:12,942 INFO L226 Difference]: Without dead ends: 22641 [2023-12-20 02:47:12,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:47:12,955 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 3374 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3374 SdHoareTripleChecker+Valid, 1227 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:12,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3374 Valid, 1227 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:47:12,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22641 states. [2023-12-20 02:47:13,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22641 to 20003. [2023-12-20 02:47:13,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20003 states, 20002 states have (on average 1.1812318768123187) internal successors, (23627), 20002 states have internal predecessors, (23627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20003 states to 20003 states and 23627 transitions. [2023-12-20 02:47:13,121 INFO L78 Accepts]: Start accepts. Automaton has 20003 states and 23627 transitions. Word has length 95 [2023-12-20 02:47:13,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:13,122 INFO L495 AbstractCegarLoop]: Abstraction has 20003 states and 23627 transitions. [2023-12-20 02:47:13,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.571428571428573) internal successors, (260), 14 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:13,122 INFO L276 IsEmpty]: Start isEmpty. Operand 20003 states and 23627 transitions. [2023-12-20 02:47:13,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-20 02:47:13,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:13,125 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:13,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 02:47:13,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-20 02:47:13,330 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:13,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:13,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1745515542, now seen corresponding path program 1 times [2023-12-20 02:47:13,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:13,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346691499] [2023-12-20 02:47:13,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:13,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:13,379 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:47:13,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:13,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346691499] [2023-12-20 02:47:13,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346691499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:13,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:13,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:47:13,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645365230] [2023-12-20 02:47:13,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:13,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:47:13,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:13,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:47:13,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:47:13,383 INFO L87 Difference]: Start difference. First operand 20003 states and 23627 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:13,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:13,725 INFO L93 Difference]: Finished difference Result 41139 states and 49197 transitions. [2023-12-20 02:47:13,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:47:13,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 95 [2023-12-20 02:47:13,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:13,761 INFO L225 Difference]: With dead ends: 41139 [2023-12-20 02:47:13,761 INFO L226 Difference]: Without dead ends: 34892 [2023-12-20 02:47:13,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:47:13,773 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 488 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:13,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 972 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:47:13,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34892 states. [2023-12-20 02:47:14,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34892 to 22909. [2023-12-20 02:47:14,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22909 states, 22908 states have (on average 1.1828618823118562) internal successors, (27097), 22908 states have internal predecessors, (27097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:14,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22909 states to 22909 states and 27097 transitions. [2023-12-20 02:47:14,049 INFO L78 Accepts]: Start accepts. Automaton has 22909 states and 27097 transitions. Word has length 95 [2023-12-20 02:47:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:14,049 INFO L495 AbstractCegarLoop]: Abstraction has 22909 states and 27097 transitions. [2023-12-20 02:47:14,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:14,049 INFO L276 IsEmpty]: Start isEmpty. Operand 22909 states and 27097 transitions. [2023-12-20 02:47:14,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-20 02:47:14,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:14,067 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:14,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-20 02:47:14,068 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:14,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1349066365, now seen corresponding path program 1 times [2023-12-20 02:47:14,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:14,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626997691] [2023-12-20 02:47:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:14,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:14,126 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:14,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:14,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626997691] [2023-12-20 02:47:14,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626997691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:14,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:14,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:47:14,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115377427] [2023-12-20 02:47:14,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:14,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:47:14,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:14,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:47:14,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:14,127 INFO L87 Difference]: Start difference. First operand 22909 states and 27097 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:14,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:14,246 INFO L93 Difference]: Finished difference Result 42634 states and 50657 transitions. [2023-12-20 02:47:14,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:47:14,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 96 [2023-12-20 02:47:14,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:14,284 INFO L225 Difference]: With dead ends: 42634 [2023-12-20 02:47:14,284 INFO L226 Difference]: Without dead ends: 34665 [2023-12-20 02:47:14,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:14,297 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 174 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:14,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 909 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:47:14,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34665 states. [2023-12-20 02:47:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34665 to 23622. [2023-12-20 02:47:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23622 states, 23621 states have (on average 1.1761144744083654) internal successors, (27781), 23621 states have internal predecessors, (27781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:14,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23622 states to 23622 states and 27781 transitions. [2023-12-20 02:47:14,574 INFO L78 Accepts]: Start accepts. Automaton has 23622 states and 27781 transitions. Word has length 96 [2023-12-20 02:47:14,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:14,574 INFO L495 AbstractCegarLoop]: Abstraction has 23622 states and 27781 transitions. [2023-12-20 02:47:14,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 23622 states and 27781 transitions. [2023-12-20 02:47:14,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 02:47:14,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:14,583 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:14,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-20 02:47:14,583 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:14,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:14,584 INFO L85 PathProgramCache]: Analyzing trace with hash -879867485, now seen corresponding path program 1 times [2023-12-20 02:47:14,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:14,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039629959] [2023-12-20 02:47:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:14,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:14,766 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:14,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:14,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039629959] [2023-12-20 02:47:14,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039629959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:14,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:14,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:47:14,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202337815] [2023-12-20 02:47:14,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:14,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:47:14,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:14,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:47:14,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:47:14,769 INFO L87 Difference]: Start difference. First operand 23622 states and 27781 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:15,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:15,681 INFO L93 Difference]: Finished difference Result 56790 states and 66663 transitions. [2023-12-20 02:47:15,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:47:15,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2023-12-20 02:47:15,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:15,723 INFO L225 Difference]: With dead ends: 56790 [2023-12-20 02:47:15,723 INFO L226 Difference]: Without dead ends: 45911 [2023-12-20 02:47:15,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=471, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:47:15,738 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2150 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2150 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:15,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2150 Valid, 1689 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:47:15,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45911 states. [2023-12-20 02:47:15,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45911 to 36950. [2023-12-20 02:47:16,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36950 states, 36949 states have (on average 1.1733199815962543) internal successors, (43353), 36949 states have internal predecessors, (43353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36950 states to 36950 states and 43353 transitions. [2023-12-20 02:47:16,055 INFO L78 Accepts]: Start accepts. Automaton has 36950 states and 43353 transitions. Word has length 97 [2023-12-20 02:47:16,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:16,055 INFO L495 AbstractCegarLoop]: Abstraction has 36950 states and 43353 transitions. [2023-12-20 02:47:16,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:16,055 INFO L276 IsEmpty]: Start isEmpty. Operand 36950 states and 43353 transitions. [2023-12-20 02:47:16,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:47:16,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:16,059 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:16,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-20 02:47:16,059 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:16,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:16,060 INFO L85 PathProgramCache]: Analyzing trace with hash -523666449, now seen corresponding path program 1 times [2023-12-20 02:47:16,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:16,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681866003] [2023-12-20 02:47:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:16,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:47:16,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:16,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681866003] [2023-12-20 02:47:16,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681866003] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:16,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:16,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:47:16,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461799191] [2023-12-20 02:47:16,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:16,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:47:16,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:16,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:47:16,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:47:16,206 INFO L87 Difference]: Start difference. First operand 36950 states and 43353 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:16,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:16,992 INFO L93 Difference]: Finished difference Result 66361 states and 78049 transitions. [2023-12-20 02:47:16,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 02:47:16,993 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 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 98 [2023-12-20 02:47:16,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:17,053 INFO L225 Difference]: With dead ends: 66361 [2023-12-20 02:47:17,053 INFO L226 Difference]: Without dead ends: 56543 [2023-12-20 02:47:17,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:47:17,071 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 1896 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:17,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 1163 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:47:17,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56543 states. [2023-12-20 02:47:17,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56543 to 36950. [2023-12-20 02:47:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36950 states, 36949 states have (on average 1.1732658529324205) internal successors, (43351), 36949 states have internal predecessors, (43351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:17,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36950 states to 36950 states and 43351 transitions. [2023-12-20 02:47:17,612 INFO L78 Accepts]: Start accepts. Automaton has 36950 states and 43351 transitions. Word has length 98 [2023-12-20 02:47:17,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:17,612 INFO L495 AbstractCegarLoop]: Abstraction has 36950 states and 43351 transitions. [2023-12-20 02:47:17,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:17,612 INFO L276 IsEmpty]: Start isEmpty. Operand 36950 states and 43351 transitions. [2023-12-20 02:47:17,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:47:17,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:17,616 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:17,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 02:47:17,616 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:17,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:17,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1461607553, now seen corresponding path program 1 times [2023-12-20 02:47:17,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:17,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401145791] [2023-12-20 02:47:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:17,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:17,755 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:47:17,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:17,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401145791] [2023-12-20 02:47:17,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401145791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:17,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:17,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:47:17,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503079371] [2023-12-20 02:47:17,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:17,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:47:17,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:17,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:47:17,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:47:17,757 INFO L87 Difference]: Start difference. First operand 36950 states and 43351 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:18,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:18,395 INFO L93 Difference]: Finished difference Result 58677 states and 68903 transitions. [2023-12-20 02:47:18,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:47:18,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 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 99 [2023-12-20 02:47:18,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:18,452 INFO L225 Difference]: With dead ends: 58677 [2023-12-20 02:47:18,452 INFO L226 Difference]: Without dead ends: 55283 [2023-12-20 02:47:18,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:47:18,467 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 1216 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:18,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 1573 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:47:18,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55283 states. [2023-12-20 02:47:19,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55283 to 36950. [2023-12-20 02:47:19,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36950 states, 36949 states have (on average 1.1732387886005033) internal successors, (43350), 36949 states have internal predecessors, (43350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36950 states to 36950 states and 43350 transitions. [2023-12-20 02:47:19,098 INFO L78 Accepts]: Start accepts. Automaton has 36950 states and 43350 transitions. Word has length 99 [2023-12-20 02:47:19,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:19,099 INFO L495 AbstractCegarLoop]: Abstraction has 36950 states and 43350 transitions. [2023-12-20 02:47:19,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 36950 states and 43350 transitions. [2023-12-20 02:47:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:47:19,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:19,103 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:19,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-20 02:47:19,103 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:19,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:19,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1115758178, now seen corresponding path program 1 times [2023-12-20 02:47:19,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:19,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540040743] [2023-12-20 02:47:19,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:19,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:19,287 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:19,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:19,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540040743] [2023-12-20 02:47:19,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540040743] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:19,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030532233] [2023-12-20 02:47:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:19,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:19,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:19,289 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:19,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 02:47:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:19,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-20 02:47:19,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:20,266 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:20,266 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:20,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030532233] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:20,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:20,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 26 [2023-12-20 02:47:20,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016547333] [2023-12-20 02:47:20,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:20,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-20 02:47:20,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:20,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-20 02:47:20,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:47:20,763 INFO L87 Difference]: Start difference. First operand 36950 states and 43350 transitions. Second operand has 26 states, 26 states have (on average 10.884615384615385) internal successors, (283), 26 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:30,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:30,739 INFO L93 Difference]: Finished difference Result 119590 states and 139430 transitions. [2023-12-20 02:47:30,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2023-12-20 02:47:30,739 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.884615384615385) internal successors, (283), 26 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-20 02:47:30,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:30,956 INFO L225 Difference]: With dead ends: 119590 [2023-12-20 02:47:30,957 INFO L226 Difference]: Without dead ends: 117926 [2023-12-20 02:47:30,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10158 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=3629, Invalid=24427, Unknown=0, NotChecked=0, Total=28056 [2023-12-20 02:47:30,975 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 6461 mSDsluCounter, 11443 mSDsCounter, 0 mSdLazyCounter, 9860 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6461 SdHoareTripleChecker+Valid, 12174 SdHoareTripleChecker+Invalid, 9974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 9860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:30,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6461 Valid, 12174 Invalid, 9974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 9860 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-20 02:47:31,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117926 states. [2023-12-20 02:47:31,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117926 to 38585. [2023-12-20 02:47:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38585 states, 38584 states have (on average 1.1738026124818577) internal successors, (45290), 38584 states have internal predecessors, (45290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:31,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38585 states to 38585 states and 45290 transitions. [2023-12-20 02:47:31,514 INFO L78 Accepts]: Start accepts. Automaton has 38585 states and 45290 transitions. Word has length 99 [2023-12-20 02:47:31,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:31,514 INFO L495 AbstractCegarLoop]: Abstraction has 38585 states and 45290 transitions. [2023-12-20 02:47:31,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.884615384615385) internal successors, (283), 26 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand 38585 states and 45290 transitions. [2023-12-20 02:47:31,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:47:31,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:31,518 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:31,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 02:47:31,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:31,723 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:31,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash -445255623, now seen corresponding path program 1 times [2023-12-20 02:47:31,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:31,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167187287] [2023-12-20 02:47:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:31,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:31,921 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:31,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:31,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167187287] [2023-12-20 02:47:31,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167187287] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:31,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588205221] [2023-12-20 02:47:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:31,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:31,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:31,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:31,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 02:47:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:32,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-20 02:47:32,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:32,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:33,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:33,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588205221] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:33,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:33,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 27 [2023-12-20 02:47:33,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559364864] [2023-12-20 02:47:33,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:33,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-20 02:47:33,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:33,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-20 02:47:33,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:47:33,077 INFO L87 Difference]: Start difference. First operand 38585 states and 45290 transitions. Second operand has 28 states, 28 states have (on average 9.714285714285714) internal successors, (272), 27 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:38,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:38,627 INFO L93 Difference]: Finished difference Result 134103 states and 156314 transitions. [2023-12-20 02:47:38,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-20 02:47:38,627 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.714285714285714) internal successors, (272), 27 states have internal predecessors, (272), 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 99 [2023-12-20 02:47:38,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:38,755 INFO L225 Difference]: With dead ends: 134103 [2023-12-20 02:47:38,755 INFO L226 Difference]: Without dead ends: 114137 [2023-12-20 02:47:38,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3319 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2198, Invalid=8722, Unknown=0, NotChecked=0, Total=10920 [2023-12-20 02:47:38,793 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 5671 mSDsluCounter, 6093 mSDsCounter, 0 mSdLazyCounter, 5885 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5671 SdHoareTripleChecker+Valid, 6540 SdHoareTripleChecker+Invalid, 6011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 5885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:38,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5671 Valid, 6540 Invalid, 6011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 5885 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 02:47:38,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114137 states. [2023-12-20 02:47:39,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114137 to 56457. [2023-12-20 02:47:39,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56457 states, 56456 states have (on average 1.174684710216806) internal successors, (66318), 56456 states have internal predecessors, (66318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:39,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56457 states to 56457 states and 66318 transitions. [2023-12-20 02:47:39,720 INFO L78 Accepts]: Start accepts. Automaton has 56457 states and 66318 transitions. Word has length 99 [2023-12-20 02:47:39,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:39,721 INFO L495 AbstractCegarLoop]: Abstraction has 56457 states and 66318 transitions. [2023-12-20 02:47:39,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.714285714285714) internal successors, (272), 27 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 56457 states and 66318 transitions. [2023-12-20 02:47:39,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:47:39,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:39,727 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:39,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 02:47:39,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-12-20 02:47:39,928 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:39,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:39,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1144054494, now seen corresponding path program 1 times [2023-12-20 02:47:39,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:39,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120028368] [2023-12-20 02:47:39,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:39,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:39,986 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:47:39,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:39,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120028368] [2023-12-20 02:47:39,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120028368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:39,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:39,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:47:39,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161328398] [2023-12-20 02:47:39,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:39,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:47:39,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:39,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:47:39,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:47:39,987 INFO L87 Difference]: Start difference. First operand 56457 states and 66318 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:40,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:40,686 INFO L93 Difference]: Finished difference Result 108019 states and 126800 transitions. [2023-12-20 02:47:40,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:47:40,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 100 [2023-12-20 02:47:40,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:40,777 INFO L225 Difference]: With dead ends: 108019 [2023-12-20 02:47:40,777 INFO L226 Difference]: Without dead ends: 92015 [2023-12-20 02:47:40,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:47:40,789 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 429 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:40,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 949 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:47:40,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92015 states. [2023-12-20 02:47:41,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92015 to 64333. [2023-12-20 02:47:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64333 states, 64332 states have (on average 1.1751228004725487) internal successors, (75598), 64332 states have internal predecessors, (75598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64333 states to 64333 states and 75598 transitions. [2023-12-20 02:47:41,603 INFO L78 Accepts]: Start accepts. Automaton has 64333 states and 75598 transitions. Word has length 100 [2023-12-20 02:47:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:41,603 INFO L495 AbstractCegarLoop]: Abstraction has 64333 states and 75598 transitions. [2023-12-20 02:47:41,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 64333 states and 75598 transitions. [2023-12-20 02:47:41,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:47:41,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:41,609 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:41,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-20 02:47:41,609 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:41,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:41,610 INFO L85 PathProgramCache]: Analyzing trace with hash -754475811, now seen corresponding path program 1 times [2023-12-20 02:47:41,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:41,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930096820] [2023-12-20 02:47:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:41,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:41,896 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:47:41,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:41,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930096820] [2023-12-20 02:47:41,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930096820] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:41,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:41,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:47:41,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496736501] [2023-12-20 02:47:41,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:41,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:47:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:41,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:47:41,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:47:41,898 INFO L87 Difference]: Start difference. First operand 64333 states and 75598 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:42,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:42,454 INFO L93 Difference]: Finished difference Result 77641 states and 91133 transitions. [2023-12-20 02:47:42,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 02:47:42,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 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 100 [2023-12-20 02:47:42,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:42,520 INFO L225 Difference]: With dead ends: 77641 [2023-12-20 02:47:42,520 INFO L226 Difference]: Without dead ends: 67522 [2023-12-20 02:47:42,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:47:42,541 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 1083 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:42,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 1155 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:47:42,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67522 states. [2023-12-20 02:47:43,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67522 to 64333. [2023-12-20 02:47:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64333 states, 64332 states have (on average 1.1751072561089349) internal successors, (75597), 64332 states have internal predecessors, (75597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:43,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64333 states to 64333 states and 75597 transitions. [2023-12-20 02:47:43,189 INFO L78 Accepts]: Start accepts. Automaton has 64333 states and 75597 transitions. Word has length 100 [2023-12-20 02:47:43,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:43,189 INFO L495 AbstractCegarLoop]: Abstraction has 64333 states and 75597 transitions. [2023-12-20 02:47:43,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:43,190 INFO L276 IsEmpty]: Start isEmpty. Operand 64333 states and 75597 transitions. [2023-12-20 02:47:43,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:47:43,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:43,196 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:43,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-20 02:47:43,196 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:43,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:43,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1115541813, now seen corresponding path program 1 times [2023-12-20 02:47:43,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:43,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133290751] [2023-12-20 02:47:43,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:43,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:43,240 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:47:43,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:43,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133290751] [2023-12-20 02:47:43,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133290751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:43,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:43,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:47:43,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129124105] [2023-12-20 02:47:43,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:43,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:47:43,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:43,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:47:43,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:47:43,242 INFO L87 Difference]: Start difference. First operand 64333 states and 75597 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:43,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:43,777 INFO L93 Difference]: Finished difference Result 92690 states and 108867 transitions. [2023-12-20 02:47:43,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:47:43,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 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 100 [2023-12-20 02:47:43,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:43,861 INFO L225 Difference]: With dead ends: 92690 [2023-12-20 02:47:43,861 INFO L226 Difference]: Without dead ends: 86700 [2023-12-20 02:47:43,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:47:43,883 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 442 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:43,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 934 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:47:43,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86700 states. [2023-12-20 02:47:44,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86700 to 64333. [2023-12-20 02:47:44,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64333 states, 64332 states have (on average 1.1751072561089349) internal successors, (75597), 64332 states have internal predecessors, (75597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:44,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64333 states to 64333 states and 75597 transitions. [2023-12-20 02:47:44,605 INFO L78 Accepts]: Start accepts. Automaton has 64333 states and 75597 transitions. Word has length 100 [2023-12-20 02:47:44,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:44,605 INFO L495 AbstractCegarLoop]: Abstraction has 64333 states and 75597 transitions. [2023-12-20 02:47:44,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:44,605 INFO L276 IsEmpty]: Start isEmpty. Operand 64333 states and 75597 transitions. [2023-12-20 02:47:44,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:47:44,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:44,611 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:44,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-20 02:47:44,611 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:44,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:44,611 INFO L85 PathProgramCache]: Analyzing trace with hash 715550614, now seen corresponding path program 1 times [2023-12-20 02:47:44,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:44,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623512263] [2023-12-20 02:47:44,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:44,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:44,658 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:44,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:44,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623512263] [2023-12-20 02:47:44,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623512263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:44,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:44,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:47:44,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951827585] [2023-12-20 02:47:44,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:44,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:47:44,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:44,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:47:44,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:44,659 INFO L87 Difference]: Start difference. First operand 64333 states and 75597 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:45,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:45,125 INFO L93 Difference]: Finished difference Result 119074 states and 141178 transitions. [2023-12-20 02:47:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:47:45,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2023-12-20 02:47:45,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:45,187 INFO L225 Difference]: With dead ends: 119074 [2023-12-20 02:47:45,188 INFO L226 Difference]: Without dead ends: 55875 [2023-12-20 02:47:45,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:45,236 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 159 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:45,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 780 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:47:45,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55875 states. [2023-12-20 02:47:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55875 to 52783. [2023-12-20 02:47:45,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52783 states, 52782 states have (on average 1.1735819029214505) internal successors, (61944), 52782 states have internal predecessors, (61944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:45,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52783 states to 52783 states and 61944 transitions. [2023-12-20 02:47:45,808 INFO L78 Accepts]: Start accepts. Automaton has 52783 states and 61944 transitions. Word has length 100 [2023-12-20 02:47:45,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:45,809 INFO L495 AbstractCegarLoop]: Abstraction has 52783 states and 61944 transitions. [2023-12-20 02:47:45,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:45,809 INFO L276 IsEmpty]: Start isEmpty. Operand 52783 states and 61944 transitions. [2023-12-20 02:47:45,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:47:45,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:45,814 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:45,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-20 02:47:45,814 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:45,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:45,815 INFO L85 PathProgramCache]: Analyzing trace with hash 229754269, now seen corresponding path program 1 times [2023-12-20 02:47:45,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:45,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755812602] [2023-12-20 02:47:45,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:45,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:46,143 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:46,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:46,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755812602] [2023-12-20 02:47:46,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755812602] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:46,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456645676] [2023-12-20 02:47:46,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:46,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:46,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:46,145 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:46,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 02:47:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:46,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:47:46,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:46,943 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:47,347 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:47,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456645676] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:47,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:47,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 28 [2023-12-20 02:47:47,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178986539] [2023-12-20 02:47:47,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:47,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-20 02:47:47,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:47,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-20 02:47:47,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:47:47,349 INFO L87 Difference]: Start difference. First operand 52783 states and 61944 transitions. Second operand has 28 states, 28 states have (on average 8.178571428571429) internal successors, (229), 28 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:48,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:48,761 INFO L93 Difference]: Finished difference Result 73892 states and 86412 transitions. [2023-12-20 02:47:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-20 02:47:48,761 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 8.178571428571429) internal successors, (229), 28 states have internal predecessors, (229), 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 100 [2023-12-20 02:47:48,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:48,825 INFO L225 Difference]: With dead ends: 73892 [2023-12-20 02:47:48,825 INFO L226 Difference]: Without dead ends: 64646 [2023-12-20 02:47:48,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=507, Invalid=2043, Unknown=0, NotChecked=0, Total=2550 [2023-12-20 02:47:48,846 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2917 mSDsluCounter, 7019 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2917 SdHoareTripleChecker+Valid, 7606 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:48,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2917 Valid, 7606 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:47:48,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64646 states. [2023-12-20 02:47:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64646 to 57377. [2023-12-20 02:47:49,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57377 states, 57376 states have (on average 1.1718837144450642) internal successors, (67238), 57376 states have internal predecessors, (67238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:49,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57377 states to 57377 states and 67238 transitions. [2023-12-20 02:47:49,387 INFO L78 Accepts]: Start accepts. Automaton has 57377 states and 67238 transitions. Word has length 100 [2023-12-20 02:47:49,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:49,388 INFO L495 AbstractCegarLoop]: Abstraction has 57377 states and 67238 transitions. [2023-12-20 02:47:49,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 8.178571428571429) internal successors, (229), 28 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:49,388 INFO L276 IsEmpty]: Start isEmpty. Operand 57377 states and 67238 transitions. [2023-12-20 02:47:49,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 02:47:49,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:49,392 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:49,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-20 02:47:49,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:49,596 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:49,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:49,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1940422581, now seen corresponding path program 1 times [2023-12-20 02:47:49,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:49,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465621163] [2023-12-20 02:47:49,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:49,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:47:49,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:49,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465621163] [2023-12-20 02:47:49,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465621163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:49,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:49,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:47:49,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051862156] [2023-12-20 02:47:49,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:49,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:47:49,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:49,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:47:49,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:47:49,723 INFO L87 Difference]: Start difference. First operand 57377 states and 67238 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:50,590 INFO L93 Difference]: Finished difference Result 91759 states and 107645 transitions. [2023-12-20 02:47:50,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:47:50,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 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 101 [2023-12-20 02:47:50,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:50,671 INFO L225 Difference]: With dead ends: 91759 [2023-12-20 02:47:50,671 INFO L226 Difference]: Without dead ends: 84081 [2023-12-20 02:47:50,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:47:50,695 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 1071 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 1349 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:50,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 1672 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1349 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:47:50,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84081 states. [2023-12-20 02:47:51,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84081 to 57377. [2023-12-20 02:47:51,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57377 states, 57376 states have (on average 1.1718488566648075) internal successors, (67236), 57376 states have internal predecessors, (67236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:51,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57377 states to 57377 states and 67236 transitions. [2023-12-20 02:47:51,371 INFO L78 Accepts]: Start accepts. Automaton has 57377 states and 67236 transitions. Word has length 101 [2023-12-20 02:47:51,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:51,371 INFO L495 AbstractCegarLoop]: Abstraction has 57377 states and 67236 transitions. [2023-12-20 02:47:51,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 7 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:51,371 INFO L276 IsEmpty]: Start isEmpty. Operand 57377 states and 67236 transitions. [2023-12-20 02:47:51,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 02:47:51,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:51,375 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:51,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-20 02:47:51,375 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:51,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:51,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1530272987, now seen corresponding path program 1 times [2023-12-20 02:47:51,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:51,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007423278] [2023-12-20 02:47:51,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:51,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:51,429 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:47:51,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:51,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007423278] [2023-12-20 02:47:51,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007423278] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:51,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:51,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:47:51,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509141299] [2023-12-20 02:47:51,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:51,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:47:51,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:51,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:47:51,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:51,431 INFO L87 Difference]: Start difference. First operand 57377 states and 67236 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:51,739 INFO L93 Difference]: Finished difference Result 84055 states and 98609 transitions. [2023-12-20 02:47:51,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:47:51,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 101 [2023-12-20 02:47:51,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:51,770 INFO L225 Difference]: With dead ends: 84055 [2023-12-20 02:47:51,770 INFO L226 Difference]: Without dead ends: 29683 [2023-12-20 02:47:51,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:51,795 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 242 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:51,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 637 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:47:51,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29683 states. [2023-12-20 02:47:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29683 to 29681. [2023-12-20 02:47:51,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29681 states, 29680 states have (on average 1.148921832884097) internal successors, (34100), 29680 states have internal predecessors, (34100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29681 states to 29681 states and 34100 transitions. [2023-12-20 02:47:52,029 INFO L78 Accepts]: Start accepts. Automaton has 29681 states and 34100 transitions. Word has length 101 [2023-12-20 02:47:52,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:52,029 INFO L495 AbstractCegarLoop]: Abstraction has 29681 states and 34100 transitions. [2023-12-20 02:47:52,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:52,029 INFO L276 IsEmpty]: Start isEmpty. Operand 29681 states and 34100 transitions. [2023-12-20 02:47:52,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 02:47:52,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:52,032 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:52,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-20 02:47:52,032 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:52,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash -2022742799, now seen corresponding path program 1 times [2023-12-20 02:47:52,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:52,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457713088] [2023-12-20 02:47:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:52,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:52,351 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:52,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:52,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457713088] [2023-12-20 02:47:52,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457713088] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:52,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800918443] [2023-12-20 02:47:52,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:52,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:52,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:52,353 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:52,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 02:47:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:52,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-20 02:47:52,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:52,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:47:52,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800918443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:52,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:47:52,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 17 [2023-12-20 02:47:52,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667802300] [2023-12-20 02:47:52,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:52,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:47:52,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:52,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:47:52,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:47:52,877 INFO L87 Difference]: Start difference. First operand 29681 states and 34100 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:53,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:53,421 INFO L93 Difference]: Finished difference Result 36737 states and 42225 transitions. [2023-12-20 02:47:53,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:47:53,421 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 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 101 [2023-12-20 02:47:53,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:53,450 INFO L225 Difference]: With dead ends: 36737 [2023-12-20 02:47:53,450 INFO L226 Difference]: Without dead ends: 32576 [2023-12-20 02:47:53,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:47:53,458 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 828 mSDsluCounter, 3469 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:53,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 4065 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:47:53,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32576 states. [2023-12-20 02:47:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32576 to 31806. [2023-12-20 02:47:53,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31806 states, 31805 states have (on average 1.149064612482314) internal successors, (36546), 31805 states have internal predecessors, (36546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:53,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31806 states to 31806 states and 36546 transitions. [2023-12-20 02:47:53,768 INFO L78 Accepts]: Start accepts. Automaton has 31806 states and 36546 transitions. Word has length 101 [2023-12-20 02:47:53,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:53,768 INFO L495 AbstractCegarLoop]: Abstraction has 31806 states and 36546 transitions. [2023-12-20 02:47:53,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 31806 states and 36546 transitions. [2023-12-20 02:47:53,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 02:47:53,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:53,772 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:53,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 02:47:53,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:53,977 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:53,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:53,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2038727416, now seen corresponding path program 1 times [2023-12-20 02:47:53,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:53,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703602308] [2023-12-20 02:47:53,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:53,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:54,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:54,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703602308] [2023-12-20 02:47:54,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703602308] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021015471] [2023-12-20 02:47:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:54,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:54,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:54,324 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:54,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 02:47:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:54,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:47:54,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:55,116 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:55,116 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:55,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021015471] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:55,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:55,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 10] total 29 [2023-12-20 02:47:55,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108100705] [2023-12-20 02:47:55,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:55,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 02:47:55,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:55,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 02:47:55,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:47:55,484 INFO L87 Difference]: Start difference. First operand 31806 states and 36546 transitions. Second operand has 29 states, 29 states have (on average 8.482758620689655) internal successors, (246), 29 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:56,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:56,787 INFO L93 Difference]: Finished difference Result 41213 states and 47120 transitions. [2023-12-20 02:47:56,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-20 02:47:56,787 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.482758620689655) internal successors, (246), 29 states have internal predecessors, (246), 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 101 [2023-12-20 02:47:56,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:56,820 INFO L225 Difference]: With dead ends: 41213 [2023-12-20 02:47:56,820 INFO L226 Difference]: Without dead ends: 36712 [2023-12-20 02:47:56,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=550, Invalid=2102, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 02:47:56,839 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 2313 mSDsluCounter, 10460 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2313 SdHoareTripleChecker+Valid, 11089 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:56,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2313 Valid, 11089 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:47:56,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36712 states. [2023-12-20 02:47:57,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36712 to 31821. [2023-12-20 02:47:57,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31821 states, 31820 states have (on average 1.1481458202388435) internal successors, (36534), 31820 states have internal predecessors, (36534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:57,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31821 states to 31821 states and 36534 transitions. [2023-12-20 02:47:57,104 INFO L78 Accepts]: Start accepts. Automaton has 31821 states and 36534 transitions. Word has length 101 [2023-12-20 02:47:57,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:57,104 INFO L495 AbstractCegarLoop]: Abstraction has 31821 states and 36534 transitions. [2023-12-20 02:47:57,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.482758620689655) internal successors, (246), 29 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:57,104 INFO L276 IsEmpty]: Start isEmpty. Operand 31821 states and 36534 transitions. [2023-12-20 02:47:57,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:47:57,107 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:57,107 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:57,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-20 02:47:57,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-12-20 02:47:57,313 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:57,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1711561113, now seen corresponding path program 1 times [2023-12-20 02:47:57,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:57,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376325805] [2023-12-20 02:47:57,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:57,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:57,705 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:57,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:57,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376325805] [2023-12-20 02:47:57,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376325805] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:57,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150735016] [2023-12-20 02:47:57,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:57,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:57,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:57,707 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:57,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 02:47:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:57,899 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 02:47:57,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:58,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:58,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150735016] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:58,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:58,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 30 [2023-12-20 02:47:58,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288643874] [2023-12-20 02:47:58,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:58,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 02:47:58,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:58,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 02:47:58,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:47:58,729 INFO L87 Difference]: Start difference. First operand 31821 states and 36534 transitions. Second operand has 30 states, 30 states have (on average 9.366666666666667) internal successors, (281), 30 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:10,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:10,146 INFO L93 Difference]: Finished difference Result 90725 states and 102996 transitions. [2023-12-20 02:48:10,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2023-12-20 02:48:10,146 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.366666666666667) internal successors, (281), 30 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 02:48:10,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:10,234 INFO L225 Difference]: With dead ends: 90725 [2023-12-20 02:48:10,234 INFO L226 Difference]: Without dead ends: 89251 [2023-12-20 02:48:10,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12788 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=5544, Invalid=29612, Unknown=0, NotChecked=0, Total=35156 [2023-12-20 02:48:10,268 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 10225 mSDsluCounter, 5825 mSDsCounter, 0 mSdLazyCounter, 6284 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10225 SdHoareTripleChecker+Valid, 6238 SdHoareTripleChecker+Invalid, 6595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 6284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:10,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10225 Valid, 6238 Invalid, 6595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 6284 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-20 02:48:10,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89251 states. [2023-12-20 02:48:10,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89251 to 31786. [2023-12-20 02:48:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31786 states, 31785 states have (on average 1.1477426459021551) internal successors, (36481), 31785 states have internal predecessors, (36481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:10,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31786 states to 31786 states and 36481 transitions. [2023-12-20 02:48:10,818 INFO L78 Accepts]: Start accepts. Automaton has 31786 states and 36481 transitions. Word has length 102 [2023-12-20 02:48:10,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:10,818 INFO L495 AbstractCegarLoop]: Abstraction has 31786 states and 36481 transitions. [2023-12-20 02:48:10,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.366666666666667) internal successors, (281), 30 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:10,819 INFO L276 IsEmpty]: Start isEmpty. Operand 31786 states and 36481 transitions. [2023-12-20 02:48:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:48:10,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:10,822 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:10,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:11,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-12-20 02:48:11,027 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:11,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:11,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1585687534, now seen corresponding path program 1 times [2023-12-20 02:48:11,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:11,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890402606] [2023-12-20 02:48:11,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:11,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:11,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:11,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890402606] [2023-12-20 02:48:11,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890402606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:11,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:11,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:48:11,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684694426] [2023-12-20 02:48:11,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:11,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:48:11,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:11,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:48:11,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:11,069 INFO L87 Difference]: Start difference. First operand 31786 states and 36481 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:11,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:11,169 INFO L93 Difference]: Finished difference Result 38837 states and 44638 transitions. [2023-12-20 02:48:11,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:48:11,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2023-12-20 02:48:11,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:11,199 INFO L225 Difference]: With dead ends: 38837 [2023-12-20 02:48:11,200 INFO L226 Difference]: Without dead ends: 32349 [2023-12-20 02:48:11,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:11,210 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 97 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:11,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 932 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:48:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32349 states. [2023-12-20 02:48:11,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32349 to 32306. [2023-12-20 02:48:11,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32306 states, 32305 states have (on average 1.1453644946602692) internal successors, (37001), 32305 states have internal predecessors, (37001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:11,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32306 states to 32306 states and 37001 transitions. [2023-12-20 02:48:11,465 INFO L78 Accepts]: Start accepts. Automaton has 32306 states and 37001 transitions. Word has length 102 [2023-12-20 02:48:11,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:11,465 INFO L495 AbstractCegarLoop]: Abstraction has 32306 states and 37001 transitions. [2023-12-20 02:48:11,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:11,466 INFO L276 IsEmpty]: Start isEmpty. Operand 32306 states and 37001 transitions. [2023-12-20 02:48:11,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:48:11,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:11,469 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:11,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-20 02:48:11,469 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:11,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:11,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1344902827, now seen corresponding path program 1 times [2023-12-20 02:48:11,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:11,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768317572] [2023-12-20 02:48:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:11,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:11,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:11,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768317572] [2023-12-20 02:48:11,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768317572] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:11,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349656620] [2023-12-20 02:48:11,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:11,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:11,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:11,857 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:11,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 02:48:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:12,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:48:12,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:12,478 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:12,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:12,784 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:12,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349656620] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:12,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:12,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 10] total 25 [2023-12-20 02:48:12,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54816259] [2023-12-20 02:48:12,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:12,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-20 02:48:12,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:12,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-20 02:48:12,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:48:12,785 INFO L87 Difference]: Start difference. First operand 32306 states and 37001 transitions. Second operand has 25 states, 25 states have (on average 8.72) internal successors, (218), 25 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:13,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:13,949 INFO L93 Difference]: Finished difference Result 50897 states and 58146 transitions. [2023-12-20 02:48:13,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-20 02:48:13,950 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.72) internal successors, (218), 25 states have internal predecessors, (218), 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 102 [2023-12-20 02:48:13,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:14,000 INFO L225 Difference]: With dead ends: 50897 [2023-12-20 02:48:14,000 INFO L226 Difference]: Without dead ends: 49261 [2023-12-20 02:48:14,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=372, Invalid=1698, Unknown=0, NotChecked=0, Total=2070 [2023-12-20 02:48:14,118 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 3011 mSDsluCounter, 7738 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3011 SdHoareTripleChecker+Valid, 8361 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:14,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3011 Valid, 8361 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:48:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49261 states. [2023-12-20 02:48:14,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49261 to 32253. [2023-12-20 02:48:14,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32253 states, 32252 states have (on average 1.1451382859977677) internal successors, (36933), 32252 states have internal predecessors, (36933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32253 states to 32253 states and 36933 transitions. [2023-12-20 02:48:14,414 INFO L78 Accepts]: Start accepts. Automaton has 32253 states and 36933 transitions. Word has length 102 [2023-12-20 02:48:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:14,415 INFO L495 AbstractCegarLoop]: Abstraction has 32253 states and 36933 transitions. [2023-12-20 02:48:14,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.72) internal successors, (218), 25 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 32253 states and 36933 transitions. [2023-12-20 02:48:14,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:48:14,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:14,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:14,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:14,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-12-20 02:48:14,623 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:14,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:14,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1774055125, now seen corresponding path program 1 times [2023-12-20 02:48:14,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:14,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798804146] [2023-12-20 02:48:14,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:14,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:14,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:14,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:14,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798804146] [2023-12-20 02:48:14,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798804146] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:14,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250378304] [2023-12-20 02:48:14,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:14,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:14,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:14,914 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:14,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-20 02:48:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:15,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 02:48:15,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:15,400 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:48:15,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250378304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:15,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:48:15,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 20 [2023-12-20 02:48:15,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914561023] [2023-12-20 02:48:15,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:15,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:48:15,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:15,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:48:15,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:48:15,402 INFO L87 Difference]: Start difference. First operand 32253 states and 36933 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:15,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:15,853 INFO L93 Difference]: Finished difference Result 35691 states and 40853 transitions. [2023-12-20 02:48:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:48:15,854 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 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 102 [2023-12-20 02:48:15,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:15,882 INFO L225 Difference]: With dead ends: 35691 [2023-12-20 02:48:15,882 INFO L226 Difference]: Without dead ends: 31485 [2023-12-20 02:48:15,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=777, Unknown=0, NotChecked=0, Total=930 [2023-12-20 02:48:15,893 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 820 mSDsluCounter, 3187 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:15,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 3706 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:48:15,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31485 states. [2023-12-20 02:48:16,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31485 to 31111. [2023-12-20 02:48:16,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31111 states, 31110 states have (on average 1.143394406943105) internal successors, (35571), 31110 states have internal predecessors, (35571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:16,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31111 states to 31111 states and 35571 transitions. [2023-12-20 02:48:16,263 INFO L78 Accepts]: Start accepts. Automaton has 31111 states and 35571 transitions. Word has length 102 [2023-12-20 02:48:16,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:16,263 INFO L495 AbstractCegarLoop]: Abstraction has 31111 states and 35571 transitions. [2023-12-20 02:48:16,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:16,263 INFO L276 IsEmpty]: Start isEmpty. Operand 31111 states and 35571 transitions. [2023-12-20 02:48:16,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:48:16,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:16,266 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:16,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:16,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-12-20 02:48:16,471 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:16,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:16,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1703931800, now seen corresponding path program 1 times [2023-12-20 02:48:16,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:16,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931249618] [2023-12-20 02:48:16,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:16,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:16,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:16,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931249618] [2023-12-20 02:48:16,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931249618] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:16,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386690458] [2023-12-20 02:48:16,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:16,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:16,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:16,621 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:16,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-20 02:48:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:16,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-20 02:48:16,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:17,346 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:17,835 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:17,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386690458] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:17,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:17,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 23 [2023-12-20 02:48:17,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900282610] [2023-12-20 02:48:17,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:17,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:48:17,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:17,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:48:17,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:48:17,837 INFO L87 Difference]: Start difference. First operand 31111 states and 35571 transitions. Second operand has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 23 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:20,570 INFO L93 Difference]: Finished difference Result 74586 states and 84943 transitions. [2023-12-20 02:48:20,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-20 02:48:20,571 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 23 states have internal predecessors, (245), 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 102 [2023-12-20 02:48:20,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:20,644 INFO L225 Difference]: With dead ends: 74586 [2023-12-20 02:48:20,644 INFO L226 Difference]: Without dead ends: 72375 [2023-12-20 02:48:20,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=616, Invalid=2690, Unknown=0, NotChecked=0, Total=3306 [2023-12-20 02:48:20,663 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 4186 mSDsluCounter, 3761 mSDsCounter, 0 mSdLazyCounter, 3755 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4186 SdHoareTripleChecker+Valid, 4116 SdHoareTripleChecker+Invalid, 3825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:20,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4186 Valid, 4116 Invalid, 3825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3755 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:48:20,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72375 states. [2023-12-20 02:48:21,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72375 to 31040. [2023-12-20 02:48:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31040 states, 31039 states have (on average 1.1434002384097426) internal successors, (35490), 31039 states have internal predecessors, (35490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:21,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31040 states to 31040 states and 35490 transitions. [2023-12-20 02:48:21,167 INFO L78 Accepts]: Start accepts. Automaton has 31040 states and 35490 transitions. Word has length 102 [2023-12-20 02:48:21,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:21,167 INFO L495 AbstractCegarLoop]: Abstraction has 31040 states and 35490 transitions. [2023-12-20 02:48:21,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.652173913043478) internal successors, (245), 23 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:21,168 INFO L276 IsEmpty]: Start isEmpty. Operand 31040 states and 35490 transitions. [2023-12-20 02:48:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:48:21,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:21,171 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:21,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:21,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:21,373 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:21,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1688891762, now seen corresponding path program 1 times [2023-12-20 02:48:21,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:21,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964385693] [2023-12-20 02:48:21,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:21,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:21,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:21,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964385693] [2023-12-20 02:48:21,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964385693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:21,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:21,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:48:21,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088071988] [2023-12-20 02:48:21,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:21,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:48:21,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:21,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:48:21,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:21,419 INFO L87 Difference]: Start difference. First operand 31040 states and 35490 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:21,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:21,520 INFO L93 Difference]: Finished difference Result 45338 states and 51997 transitions. [2023-12-20 02:48:21,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:48:21,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2023-12-20 02:48:21,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:21,538 INFO L225 Difference]: With dead ends: 45338 [2023-12-20 02:48:21,539 INFO L226 Difference]: Without dead ends: 16696 [2023-12-20 02:48:21,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:21,553 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 154 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:21,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 691 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:48:21,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16696 states. [2023-12-20 02:48:21,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16696 to 16573. [2023-12-20 02:48:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16573 states, 16572 states have (on average 1.1336591841660633) internal successors, (18787), 16572 states have internal predecessors, (18787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16573 states to 16573 states and 18787 transitions. [2023-12-20 02:48:21,672 INFO L78 Accepts]: Start accepts. Automaton has 16573 states and 18787 transitions. Word has length 102 [2023-12-20 02:48:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:21,673 INFO L495 AbstractCegarLoop]: Abstraction has 16573 states and 18787 transitions. [2023-12-20 02:48:21,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:21,673 INFO L276 IsEmpty]: Start isEmpty. Operand 16573 states and 18787 transitions. [2023-12-20 02:48:21,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:48:21,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:21,675 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:21,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-20 02:48:21,675 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:21,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:21,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1231594007, now seen corresponding path program 1 times [2023-12-20 02:48:21,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:21,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319851644] [2023-12-20 02:48:21,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:21,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:21,989 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:48:21,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:21,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319851644] [2023-12-20 02:48:21,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319851644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:21,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:21,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:48:21,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434213844] [2023-12-20 02:48:21,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:21,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:48:21,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:21,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:48:21,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:48:21,991 INFO L87 Difference]: Start difference. First operand 16573 states and 18787 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:22,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:22,559 INFO L93 Difference]: Finished difference Result 19263 states and 21864 transitions. [2023-12-20 02:48:22,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:48:22,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 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 102 [2023-12-20 02:48:22,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:22,574 INFO L225 Difference]: With dead ends: 19263 [2023-12-20 02:48:22,574 INFO L226 Difference]: Without dead ends: 17931 [2023-12-20 02:48:22,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:48:22,578 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 2545 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2545 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:22,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2545 Valid, 2584 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:48:22,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17931 states. [2023-12-20 02:48:22,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17931 to 16474. [2023-12-20 02:48:22,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16474 states, 16473 states have (on average 1.133916105141747) internal successors, (18679), 16473 states have internal predecessors, (18679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:22,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16474 states to 16474 states and 18679 transitions. [2023-12-20 02:48:22,812 INFO L78 Accepts]: Start accepts. Automaton has 16474 states and 18679 transitions. Word has length 102 [2023-12-20 02:48:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:22,812 INFO L495 AbstractCegarLoop]: Abstraction has 16474 states and 18679 transitions. [2023-12-20 02:48:22,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand 16474 states and 18679 transitions. [2023-12-20 02:48:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:48:22,814 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:22,814 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:22,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-20 02:48:22,815 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:22,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:22,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2020457129, now seen corresponding path program 1 times [2023-12-20 02:48:22,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:22,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117599482] [2023-12-20 02:48:22,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:22,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:23,175 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:23,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:23,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117599482] [2023-12-20 02:48:23,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117599482] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:23,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143721080] [2023-12-20 02:48:23,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:23,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:23,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:23,177 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:23,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-20 02:48:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:23,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-20 02:48:23,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:23,867 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:23,867 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:24,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:24,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143721080] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:24,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:24,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 11] total 35 [2023-12-20 02:48:24,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933955114] [2023-12-20 02:48:24,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:24,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-20 02:48:24,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:24,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-20 02:48:24,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1062, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:48:24,283 INFO L87 Difference]: Start difference. First operand 16474 states and 18679 transitions. Second operand has 35 states, 35 states have (on average 8.0) internal successors, (280), 35 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:25,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:25,940 INFO L93 Difference]: Finished difference Result 19023 states and 21525 transitions. [2023-12-20 02:48:25,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-20 02:48:25,940 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 8.0) internal successors, (280), 35 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 02:48:25,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:25,956 INFO L225 Difference]: With dead ends: 19023 [2023-12-20 02:48:25,956 INFO L226 Difference]: Without dead ends: 17152 [2023-12-20 02:48:25,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=724, Invalid=3308, Unknown=0, NotChecked=0, Total=4032 [2023-12-20 02:48:25,962 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 4590 mSDsluCounter, 7938 mSDsCounter, 0 mSdLazyCounter, 1892 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4590 SdHoareTripleChecker+Valid, 8537 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:25,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4590 Valid, 8537 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1892 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:48:25,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17152 states. [2023-12-20 02:48:26,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17152 to 15836. [2023-12-20 02:48:26,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15836 states, 15835 states have (on average 1.1328070729396906) internal successors, (17938), 15835 states have internal predecessors, (17938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15836 states to 15836 states and 17938 transitions. [2023-12-20 02:48:26,094 INFO L78 Accepts]: Start accepts. Automaton has 15836 states and 17938 transitions. Word has length 102 [2023-12-20 02:48:26,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:26,094 INFO L495 AbstractCegarLoop]: Abstraction has 15836 states and 17938 transitions. [2023-12-20 02:48:26,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 8.0) internal successors, (280), 35 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 15836 states and 17938 transitions. [2023-12-20 02:48:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 02:48:26,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:26,097 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:26,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:26,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-12-20 02:48:26,302 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:26,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:26,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1674316790, now seen corresponding path program 1 times [2023-12-20 02:48:26,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:26,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242186450] [2023-12-20 02:48:26,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:26,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:48:26,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:26,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242186450] [2023-12-20 02:48:26,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242186450] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:26,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:26,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:48:26,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407541286] [2023-12-20 02:48:26,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:26,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:48:26,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:26,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:48:26,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:48:26,592 INFO L87 Difference]: Start difference. First operand 15836 states and 17938 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:27,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:27,400 INFO L93 Difference]: Finished difference Result 24570 states and 27964 transitions. [2023-12-20 02:48:27,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:48:27,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 states have internal predecessors, (98), 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 103 [2023-12-20 02:48:27,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:27,421 INFO L225 Difference]: With dead ends: 24570 [2023-12-20 02:48:27,421 INFO L226 Difference]: Without dead ends: 23773 [2023-12-20 02:48:27,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=535, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:48:27,427 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 2772 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2772 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:27,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2772 Valid, 2527 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:48:27,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23773 states. [2023-12-20 02:48:27,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23773 to 15748. [2023-12-20 02:48:27,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15748 states, 15747 states have (on average 1.1329777100400076) internal successors, (17841), 15747 states have internal predecessors, (17841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:27,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15748 states to 15748 states and 17841 transitions. [2023-12-20 02:48:27,576 INFO L78 Accepts]: Start accepts. Automaton has 15748 states and 17841 transitions. Word has length 103 [2023-12-20 02:48:27,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:27,576 INFO L495 AbstractCegarLoop]: Abstraction has 15748 states and 17841 transitions. [2023-12-20 02:48:27,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 10 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:27,576 INFO L276 IsEmpty]: Start isEmpty. Operand 15748 states and 17841 transitions. [2023-12-20 02:48:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 02:48:27,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:27,578 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:27,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-20 02:48:27,579 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:27,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:27,579 INFO L85 PathProgramCache]: Analyzing trace with hash 514193784, now seen corresponding path program 1 times [2023-12-20 02:48:27,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:27,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595031286] [2023-12-20 02:48:27,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:27,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:27,866 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:27,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:27,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595031286] [2023-12-20 02:48:27,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595031286] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:27,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253895870] [2023-12-20 02:48:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:27,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:27,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:27,868 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:27,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-20 02:48:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:28,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-20 02:48:28,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:28,582 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:28,582 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:29,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253895870] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:29,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:29,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 12] total 30 [2023-12-20 02:48:29,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358014654] [2023-12-20 02:48:29,152 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:29,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 02:48:29,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:29,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 02:48:29,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:48:29,153 INFO L87 Difference]: Start difference. First operand 15748 states and 17841 transitions. Second operand has 30 states, 30 states have (on average 9.633333333333333) internal successors, (289), 30 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:38,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:38,892 INFO L93 Difference]: Finished difference Result 39695 states and 44914 transitions. [2023-12-20 02:48:38,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-12-20 02:48:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.633333333333333) internal successors, (289), 30 states have internal predecessors, (289), 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 103 [2023-12-20 02:48:38,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:38,929 INFO L225 Difference]: With dead ends: 39695 [2023-12-20 02:48:38,929 INFO L226 Difference]: Without dead ends: 37589 [2023-12-20 02:48:38,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18509 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=7119, Invalid=42833, Unknown=0, NotChecked=0, Total=49952 [2023-12-20 02:48:38,943 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 4928 mSDsluCounter, 6307 mSDsCounter, 0 mSdLazyCounter, 6740 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4928 SdHoareTripleChecker+Valid, 6780 SdHoareTripleChecker+Invalid, 6880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 6740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:38,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4928 Valid, 6780 Invalid, 6880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 6740 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 02:48:38,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37589 states. [2023-12-20 02:48:39,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37589 to 16021. [2023-12-20 02:48:39,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16021 states, 16020 states have (on average 1.133458177278402) internal successors, (18158), 16020 states have internal predecessors, (18158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:39,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16021 states to 16021 states and 18158 transitions. [2023-12-20 02:48:39,159 INFO L78 Accepts]: Start accepts. Automaton has 16021 states and 18158 transitions. Word has length 103 [2023-12-20 02:48:39,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:39,160 INFO L495 AbstractCegarLoop]: Abstraction has 16021 states and 18158 transitions. [2023-12-20 02:48:39,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.633333333333333) internal successors, (289), 30 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:39,160 INFO L276 IsEmpty]: Start isEmpty. Operand 16021 states and 18158 transitions. [2023-12-20 02:48:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 02:48:39,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:39,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:39,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:39,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:39,368 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:39,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:39,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1619667012, now seen corresponding path program 1 times [2023-12-20 02:48:39,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:39,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392631260] [2023-12-20 02:48:39,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:39,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:40,068 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:40,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:40,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392631260] [2023-12-20 02:48:40,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392631260] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:40,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52593671] [2023-12-20 02:48:40,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:40,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:40,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:40,070 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:40,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-20 02:48:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:40,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-20 02:48:40,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:41,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:48:41,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52593671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:41,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:48:41,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [19] total 29 [2023-12-20 02:48:41,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782004757] [2023-12-20 02:48:41,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:41,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:48:41,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:41,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:48:41,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=798, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:48:41,168 INFO L87 Difference]: Start difference. First operand 16021 states and 18158 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:42,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:42,280 INFO L93 Difference]: Finished difference Result 30463 states and 34667 transitions. [2023-12-20 02:48:42,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-20 02:48:42,281 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 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 103 [2023-12-20 02:48:42,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:42,307 INFO L225 Difference]: With dead ends: 30463 [2023-12-20 02:48:42,307 INFO L226 Difference]: Without dead ends: 28194 [2023-12-20 02:48:42,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=323, Invalid=2127, Unknown=0, NotChecked=0, Total=2450 [2023-12-20 02:48:42,316 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 2407 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2407 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:42,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2407 Valid, 3516 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:48:42,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28194 states. [2023-12-20 02:48:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28194 to 15642. [2023-12-20 02:48:42,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15642 states, 15641 states have (on average 1.1304264433220383) internal successors, (17681), 15641 states have internal predecessors, (17681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15642 states to 15642 states and 17681 transitions. [2023-12-20 02:48:42,476 INFO L78 Accepts]: Start accepts. Automaton has 15642 states and 17681 transitions. Word has length 103 [2023-12-20 02:48:42,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:42,476 INFO L495 AbstractCegarLoop]: Abstraction has 15642 states and 17681 transitions. [2023-12-20 02:48:42,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 11 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:42,476 INFO L276 IsEmpty]: Start isEmpty. Operand 15642 states and 17681 transitions. [2023-12-20 02:48:42,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 02:48:42,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:42,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:42,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:42,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:42,683 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:42,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:42,683 INFO L85 PathProgramCache]: Analyzing trace with hash 802018562, now seen corresponding path program 1 times [2023-12-20 02:48:42,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:42,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954108363] [2023-12-20 02:48:42,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:42,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:43,285 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:43,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:43,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954108363] [2023-12-20 02:48:43,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954108363] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:43,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099672456] [2023-12-20 02:48:43,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:43,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:43,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:43,287 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:43,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-20 02:48:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:43,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-20 02:48:43,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:44,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:48:44,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099672456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:44,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:48:44,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 30 [2023-12-20 02:48:44,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992839965] [2023-12-20 02:48:44,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:44,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:48:44,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:44,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:48:44,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2023-12-20 02:48:44,067 INFO L87 Difference]: Start difference. First operand 15642 states and 17681 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:45,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:45,044 INFO L93 Difference]: Finished difference Result 16407 states and 18561 transitions. [2023-12-20 02:48:45,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:48:45,045 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 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 103 [2023-12-20 02:48:45,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:45,059 INFO L225 Difference]: With dead ends: 16407 [2023-12-20 02:48:45,059 INFO L226 Difference]: Without dead ends: 15194 [2023-12-20 02:48:45,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=180, Invalid=1302, Unknown=0, NotChecked=0, Total=1482 [2023-12-20 02:48:45,065 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 853 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:45,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 2027 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:48:45,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15194 states. [2023-12-20 02:48:45,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15194 to 14986. [2023-12-20 02:48:45,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14986 states, 14985 states have (on average 1.1300633967300635) internal successors, (16934), 14985 states have internal predecessors, (16934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14986 states to 14986 states and 16934 transitions. [2023-12-20 02:48:45,181 INFO L78 Accepts]: Start accepts. Automaton has 14986 states and 16934 transitions. Word has length 103 [2023-12-20 02:48:45,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:45,181 INFO L495 AbstractCegarLoop]: Abstraction has 14986 states and 16934 transitions. [2023-12-20 02:48:45,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:45,182 INFO L276 IsEmpty]: Start isEmpty. Operand 14986 states and 16934 transitions. [2023-12-20 02:48:45,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:48:45,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:45,183 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:45,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:45,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-12-20 02:48:45,388 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:45,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1159860841, now seen corresponding path program 1 times [2023-12-20 02:48:45,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:45,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302685102] [2023-12-20 02:48:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:46,290 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:46,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:46,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302685102] [2023-12-20 02:48:46,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302685102] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:46,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:46,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-20 02:48:46,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043355436] [2023-12-20 02:48:46,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:46,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-20 02:48:46,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:46,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-20 02:48:46,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:48:46,291 INFO L87 Difference]: Start difference. First operand 14986 states and 16934 transitions. Second operand has 20 states, 20 states have (on average 5.2) internal successors, (104), 19 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:49,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:49,486 INFO L93 Difference]: Finished difference Result 27587 states and 31558 transitions. [2023-12-20 02:48:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-20 02:48:49,486 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 19 states have internal predecessors, (104), 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 104 [2023-12-20 02:48:49,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:49,510 INFO L225 Difference]: With dead ends: 27587 [2023-12-20 02:48:49,510 INFO L226 Difference]: Without dead ends: 26847 [2023-12-20 02:48:49,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=453, Invalid=2199, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 02:48:49,517 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 1879 mSDsluCounter, 8322 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 8986 SdHoareTripleChecker+Invalid, 2428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:49,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 8986 Invalid, 2428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 02:48:49,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26847 states. [2023-12-20 02:48:49,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26847 to 15001. [2023-12-20 02:48:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15001 states, 15000 states have (on average 1.1300666666666668) internal successors, (16951), 15000 states have internal predecessors, (16951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:49,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15001 states to 15001 states and 16951 transitions. [2023-12-20 02:48:49,670 INFO L78 Accepts]: Start accepts. Automaton has 15001 states and 16951 transitions. Word has length 104 [2023-12-20 02:48:49,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:49,670 INFO L495 AbstractCegarLoop]: Abstraction has 15001 states and 16951 transitions. [2023-12-20 02:48:49,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.2) internal successors, (104), 19 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:49,670 INFO L276 IsEmpty]: Start isEmpty. Operand 15001 states and 16951 transitions. [2023-12-20 02:48:49,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:48:49,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:49,672 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:49,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-20 02:48:49,672 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:49,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:49,673 INFO L85 PathProgramCache]: Analyzing trace with hash -604955768, now seen corresponding path program 1 times [2023-12-20 02:48:49,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:49,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317954005] [2023-12-20 02:48:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:49,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:49,715 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 02:48:49,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:49,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317954005] [2023-12-20 02:48:49,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317954005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:49,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:49,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:48:49,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064950132] [2023-12-20 02:48:49,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:49,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:48:49,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:49,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:48:49,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:48:49,717 INFO L87 Difference]: Start difference. First operand 15001 states and 16951 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:49,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:49,999 INFO L93 Difference]: Finished difference Result 23955 states and 27100 transitions. [2023-12-20 02:48:49,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:48:49,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 104 [2023-12-20 02:48:50,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:50,016 INFO L225 Difference]: With dead ends: 23955 [2023-12-20 02:48:50,017 INFO L226 Difference]: Without dead ends: 20576 [2023-12-20 02:48:50,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:48:50,023 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 356 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:50,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 899 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:48:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20576 states. [2023-12-20 02:48:50,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20576 to 16097. [2023-12-20 02:48:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16097 states, 16096 states have (on average 1.1309020874751492) internal successors, (18203), 16096 states have internal predecessors, (18203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16097 states to 16097 states and 18203 transitions. [2023-12-20 02:48:50,173 INFO L78 Accepts]: Start accepts. Automaton has 16097 states and 18203 transitions. Word has length 104 [2023-12-20 02:48:50,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:50,173 INFO L495 AbstractCegarLoop]: Abstraction has 16097 states and 18203 transitions. [2023-12-20 02:48:50,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 16097 states and 18203 transitions. [2023-12-20 02:48:50,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:48:50,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:50,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:50,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-20 02:48:50,175 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:50,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:50,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1406740484, now seen corresponding path program 1 times [2023-12-20 02:48:50,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:50,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885904718] [2023-12-20 02:48:50,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:50,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:50,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:50,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885904718] [2023-12-20 02:48:50,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885904718] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:50,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635479141] [2023-12-20 02:48:50,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:50,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:50,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:50,513 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:50,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-20 02:48:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:50,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:48:50,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:51,219 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:51,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:52,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635479141] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:52,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:52,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 29 [2023-12-20 02:48:52,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905864462] [2023-12-20 02:48:52,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:52,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 02:48:52,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:52,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 02:48:52,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:48:52,181 INFO L87 Difference]: Start difference. First operand 16097 states and 18203 transitions. Second operand has 30 states, 30 states have (on average 9.066666666666666) internal successors, (272), 29 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:54,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:54,840 INFO L93 Difference]: Finished difference Result 29443 states and 33365 transitions. [2023-12-20 02:48:54,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-20 02:48:54,841 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.066666666666666) internal successors, (272), 29 states have internal predecessors, (272), 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 106 [2023-12-20 02:48:54,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:54,871 INFO L225 Difference]: With dead ends: 29443 [2023-12-20 02:48:54,871 INFO L226 Difference]: Without dead ends: 28596 [2023-12-20 02:48:54,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=939, Invalid=2843, Unknown=0, NotChecked=0, Total=3782 [2023-12-20 02:48:54,881 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 4222 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 4110 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4222 SdHoareTripleChecker+Valid, 3787 SdHoareTripleChecker+Invalid, 4255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 4110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:54,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4222 Valid, 3787 Invalid, 4255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 4110 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:48:54,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28596 states. [2023-12-20 02:48:55,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28596 to 15901. [2023-12-20 02:48:55,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15901 states, 15900 states have (on average 1.130314465408805) internal successors, (17972), 15900 states have internal predecessors, (17972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:55,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15901 states to 15901 states and 17972 transitions. [2023-12-20 02:48:55,040 INFO L78 Accepts]: Start accepts. Automaton has 15901 states and 17972 transitions. Word has length 106 [2023-12-20 02:48:55,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:55,040 INFO L495 AbstractCegarLoop]: Abstraction has 15901 states and 17972 transitions. [2023-12-20 02:48:55,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.066666666666666) internal successors, (272), 29 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:55,040 INFO L276 IsEmpty]: Start isEmpty. Operand 15901 states and 17972 transitions. [2023-12-20 02:48:55,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:48:55,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:55,042 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:55,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-12-20 02:48:55,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:55,247 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:55,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:55,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2135414125, now seen corresponding path program 1 times [2023-12-20 02:48:55,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:55,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931229778] [2023-12-20 02:48:55,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:55,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:48:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:55,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931229778] [2023-12-20 02:48:55,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931229778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:55,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:55,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:48:55,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488482041] [2023-12-20 02:48:55,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:55,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:48:55,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:55,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:48:55,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:48:55,362 INFO L87 Difference]: Start difference. First operand 15901 states and 17972 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:55,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:55,716 INFO L93 Difference]: Finished difference Result 19351 states and 21902 transitions. [2023-12-20 02:48:55,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:48:55,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 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 106 [2023-12-20 02:48:55,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:55,730 INFO L225 Difference]: With dead ends: 19351 [2023-12-20 02:48:55,730 INFO L226 Difference]: Without dead ends: 17596 [2023-12-20 02:48:55,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:48:55,734 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 1204 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:55,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 1364 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:48:55,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17596 states. [2023-12-20 02:48:55,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17596 to 15901. [2023-12-20 02:48:55,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15901 states, 15900 states have (on average 1.130251572327044) internal successors, (17971), 15900 states have internal predecessors, (17971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15901 states to 15901 states and 17971 transitions. [2023-12-20 02:48:55,845 INFO L78 Accepts]: Start accepts. Automaton has 15901 states and 17971 transitions. Word has length 106 [2023-12-20 02:48:55,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:55,846 INFO L495 AbstractCegarLoop]: Abstraction has 15901 states and 17971 transitions. [2023-12-20 02:48:55,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:55,846 INFO L276 IsEmpty]: Start isEmpty. Operand 15901 states and 17971 transitions. [2023-12-20 02:48:55,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:55,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:55,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:55,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2023-12-20 02:48:55,848 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:55,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:55,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1074019565, now seen corresponding path program 1 times [2023-12-20 02:48:55,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:55,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540466512] [2023-12-20 02:48:55,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:55,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:56,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:56,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540466512] [2023-12-20 02:48:56,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540466512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:56,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:56,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:48:56,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655819629] [2023-12-20 02:48:56,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:56,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:48:56,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:56,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:48:56,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:48:56,143 INFO L87 Difference]: Start difference. First operand 15901 states and 17971 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:56,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:56,927 INFO L93 Difference]: Finished difference Result 20124 states and 22895 transitions. [2023-12-20 02:48:56,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:48:56,927 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 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 107 [2023-12-20 02:48:56,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:56,944 INFO L225 Difference]: With dead ends: 20124 [2023-12-20 02:48:56,944 INFO L226 Difference]: Without dead ends: 19147 [2023-12-20 02:48:56,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:48:56,948 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1488 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:56,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1944 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:48:56,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19147 states. [2023-12-20 02:48:57,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19147 to 16863. [2023-12-20 02:48:57,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16863 states, 16862 states have (on average 1.1308860158937255) internal successors, (19069), 16862 states have internal predecessors, (19069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:57,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16863 states to 16863 states and 19069 transitions. [2023-12-20 02:48:57,071 INFO L78 Accepts]: Start accepts. Automaton has 16863 states and 19069 transitions. Word has length 107 [2023-12-20 02:48:57,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:57,071 INFO L495 AbstractCegarLoop]: Abstraction has 16863 states and 19069 transitions. [2023-12-20 02:48:57,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 11 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:57,072 INFO L276 IsEmpty]: Start isEmpty. Operand 16863 states and 19069 transitions. [2023-12-20 02:48:57,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-20 02:48:57,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:57,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:57,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2023-12-20 02:48:57,074 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:57,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:57,074 INFO L85 PathProgramCache]: Analyzing trace with hash -386929133, now seen corresponding path program 1 times [2023-12-20 02:48:57,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:57,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537869824] [2023-12-20 02:48:57,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:57,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:57,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:57,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537869824] [2023-12-20 02:48:57,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537869824] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:57,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41492616] [2023-12-20 02:48:57,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:57,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:57,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:57,396 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:57,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-20 02:48:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:57,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-20 02:48:57,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:58,322 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:58,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:59,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41492616] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:59,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:59,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 16] total 44 [2023-12-20 02:48:59,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024637343] [2023-12-20 02:48:59,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:59,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-20 02:48:59,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:59,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-20 02:48:59,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1764, Unknown=0, NotChecked=0, Total=1892 [2023-12-20 02:48:59,538 INFO L87 Difference]: Start difference. First operand 16863 states and 19069 transitions. Second operand has 44 states, 44 states have (on average 6.840909090909091) internal successors, (301), 44 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:06,978 INFO L93 Difference]: Finished difference Result 47693 states and 54246 transitions. [2023-12-20 02:49:06,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-12-20 02:49:06,983 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 6.840909090909091) internal successors, (301), 44 states have internal predecessors, (301), 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 108 [2023-12-20 02:49:06,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:07,023 INFO L225 Difference]: With dead ends: 47693 [2023-12-20 02:49:07,023 INFO L226 Difference]: Without dead ends: 44097 [2023-12-20 02:49:07,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4941 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2487, Invalid=17819, Unknown=0, NotChecked=0, Total=20306 [2023-12-20 02:49:07,039 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 5654 mSDsluCounter, 22992 mSDsCounter, 0 mSdLazyCounter, 8495 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5654 SdHoareTripleChecker+Valid, 23826 SdHoareTripleChecker+Invalid, 8546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 8495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:07,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5654 Valid, 23826 Invalid, 8546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 8495 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-20 02:49:07,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44097 states. [2023-12-20 02:49:07,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44097 to 17376. [2023-12-20 02:49:07,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17376 states, 17375 states have (on average 1.1292661870503597) internal successors, (19621), 17375 states have internal predecessors, (19621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17376 states to 17376 states and 19621 transitions. [2023-12-20 02:49:07,251 INFO L78 Accepts]: Start accepts. Automaton has 17376 states and 19621 transitions. Word has length 108 [2023-12-20 02:49:07,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:07,252 INFO L495 AbstractCegarLoop]: Abstraction has 17376 states and 19621 transitions. [2023-12-20 02:49:07,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 6.840909090909091) internal successors, (301), 44 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 17376 states and 19621 transitions. [2023-12-20 02:49:07,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-20 02:49:07,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:07,254 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:07,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:07,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:07,464 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:07,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:07,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1867825015, now seen corresponding path program 1 times [2023-12-20 02:49:07,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:07,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024166855] [2023-12-20 02:49:07,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:07,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:07,936 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:07,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:07,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024166855] [2023-12-20 02:49:07,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024166855] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:07,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868148804] [2023-12-20 02:49:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:07,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:07,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:07,937 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:07,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-20 02:49:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:08,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 48 conjunts are in the unsatisfiable core [2023-12-20 02:49:08,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:49:09,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:49:09,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868148804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:09,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:49:09,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [17] total 34 [2023-12-20 02:49:09,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828448804] [2023-12-20 02:49:09,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:09,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 02:49:09,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:09,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 02:49:09,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1063, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:49:09,691 INFO L87 Difference]: Start difference. First operand 17376 states and 19621 transitions. Second operand has 19 states, 19 states have (on average 5.421052631578948) internal successors, (103), 18 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:11,689 INFO L93 Difference]: Finished difference Result 26915 states and 30496 transitions. [2023-12-20 02:49:11,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 02:49:11,689 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.421052631578948) internal successors, (103), 18 states have internal predecessors, (103), 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 108 [2023-12-20 02:49:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:11,713 INFO L225 Difference]: With dead ends: 26915 [2023-12-20 02:49:11,713 INFO L226 Difference]: Without dead ends: 26431 [2023-12-20 02:49:11,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=193, Invalid=1447, Unknown=0, NotChecked=0, Total=1640 [2023-12-20 02:49:11,720 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 1989 mSDsluCounter, 3268 mSDsCounter, 0 mSdLazyCounter, 4010 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 3637 SdHoareTripleChecker+Invalid, 4024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:11,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 3637 Invalid, 4024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4010 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:49:11,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26431 states. [2023-12-20 02:49:11,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26431 to 17282. [2023-12-20 02:49:11,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17282 states, 17281 states have (on average 1.1290434581332098) internal successors, (19511), 17281 states have internal predecessors, (19511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17282 states to 17282 states and 19511 transitions. [2023-12-20 02:49:11,867 INFO L78 Accepts]: Start accepts. Automaton has 17282 states and 19511 transitions. Word has length 108 [2023-12-20 02:49:11,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:11,868 INFO L495 AbstractCegarLoop]: Abstraction has 17282 states and 19511 transitions. [2023-12-20 02:49:11,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.421052631578948) internal successors, (103), 18 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 17282 states and 19511 transitions. [2023-12-20 02:49:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 02:49:11,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:11,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:11,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-20 02:49:12,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:12,076 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:12,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:12,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1979629966, now seen corresponding path program 1 times [2023-12-20 02:49:12,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:12,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674762483] [2023-12-20 02:49:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:12,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:12,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:12,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674762483] [2023-12-20 02:49:12,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674762483] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:12,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687777195] [2023-12-20 02:49:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:12,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:12,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:12,366 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:12,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-20 02:49:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:12,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 02:49:12,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:12,880 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:12,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:13,250 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:13,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687777195] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:13,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:13,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 10] total 25 [2023-12-20 02:49:13,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844172484] [2023-12-20 02:49:13,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:13,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-20 02:49:13,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:13,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-20 02:49:13,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:49:13,252 INFO L87 Difference]: Start difference. First operand 17282 states and 19511 transitions. Second operand has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:14,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:14,193 INFO L93 Difference]: Finished difference Result 24002 states and 26984 transitions. [2023-12-20 02:49:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-20 02:49:14,193 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 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 109 [2023-12-20 02:49:14,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:14,213 INFO L225 Difference]: With dead ends: 24002 [2023-12-20 02:49:14,213 INFO L226 Difference]: Without dead ends: 23053 [2023-12-20 02:49:14,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=479, Invalid=1971, Unknown=0, NotChecked=0, Total=2450 [2023-12-20 02:49:14,221 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 1987 mSDsluCounter, 7071 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1987 SdHoareTripleChecker+Valid, 7658 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:14,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1987 Valid, 7658 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:49:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23053 states. [2023-12-20 02:49:14,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23053 to 17791. [2023-12-20 02:49:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17791 states, 17790 states have (on average 1.128105677346824) internal successors, (20069), 17790 states have internal predecessors, (20069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:14,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17791 states to 17791 states and 20069 transitions. [2023-12-20 02:49:14,358 INFO L78 Accepts]: Start accepts. Automaton has 17791 states and 20069 transitions. Word has length 109 [2023-12-20 02:49:14,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:14,358 INFO L495 AbstractCegarLoop]: Abstraction has 17791 states and 20069 transitions. [2023-12-20 02:49:14,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:14,358 INFO L276 IsEmpty]: Start isEmpty. Operand 17791 states and 20069 transitions. [2023-12-20 02:49:14,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:49:14,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:14,360 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:14,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:14,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2023-12-20 02:49:14,566 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:14,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:14,566 INFO L85 PathProgramCache]: Analyzing trace with hash -398119967, now seen corresponding path program 1 times [2023-12-20 02:49:14,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:14,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134580114] [2023-12-20 02:49:14,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:14,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:14,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:14,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134580114] [2023-12-20 02:49:14,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134580114] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:14,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477140644] [2023-12-20 02:49:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:14,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:14,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:14,832 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:14,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-20 02:49:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:15,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:49:15,041 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:15,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:15,490 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:15,914 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:15,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477140644] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:15,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:15,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 29 [2023-12-20 02:49:15,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470336732] [2023-12-20 02:49:15,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:15,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 02:49:15,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:15,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 02:49:15,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:49:15,916 INFO L87 Difference]: Start difference. First operand 17791 states and 20069 transitions. Second operand has 29 states, 29 states have (on average 9.344827586206897) internal successors, (271), 29 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:17,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:17,444 INFO L93 Difference]: Finished difference Result 23863 states and 26842 transitions. [2023-12-20 02:49:17,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-20 02:49:17,445 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.344827586206897) internal successors, (271), 29 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-20 02:49:17,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:17,463 INFO L225 Difference]: With dead ends: 23863 [2023-12-20 02:49:17,463 INFO L226 Difference]: Without dead ends: 21973 [2023-12-20 02:49:17,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=440, Invalid=2010, Unknown=0, NotChecked=0, Total=2450 [2023-12-20 02:49:17,469 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2572 mSDsluCounter, 9115 mSDsCounter, 0 mSdLazyCounter, 2167 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 9724 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:17,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2572 Valid, 9724 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2167 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:49:17,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21973 states. [2023-12-20 02:49:17,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21973 to 18251. [2023-12-20 02:49:17,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18251 states, 18250 states have (on average 1.1276164383561644) internal successors, (20579), 18250 states have internal predecessors, (20579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:17,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18251 states to 18251 states and 20579 transitions. [2023-12-20 02:49:17,608 INFO L78 Accepts]: Start accepts. Automaton has 18251 states and 20579 transitions. Word has length 110 [2023-12-20 02:49:17,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:17,608 INFO L495 AbstractCegarLoop]: Abstraction has 18251 states and 20579 transitions. [2023-12-20 02:49:17,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.344827586206897) internal successors, (271), 29 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:17,608 INFO L276 IsEmpty]: Start isEmpty. Operand 18251 states and 20579 transitions. [2023-12-20 02:49:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:49:17,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:17,611 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:17,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-20 02:49:17,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-12-20 02:49:17,817 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:17,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:17,817 INFO L85 PathProgramCache]: Analyzing trace with hash 626570069, now seen corresponding path program 1 times [2023-12-20 02:49:17,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:17,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197072276] [2023-12-20 02:49:17,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:17,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:18,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:18,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197072276] [2023-12-20 02:49:18,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197072276] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:18,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956874708] [2023-12-20 02:49:18,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:18,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:18,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:18,463 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:18,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-20 02:49:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:18,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-20 02:49:18,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:19,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:49:19,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956874708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:19,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:49:19,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [20] total 35 [2023-12-20 02:49:19,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215282692] [2023-12-20 02:49:19,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:19,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:49:19,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:19,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:49:19,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1072, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:49:19,310 INFO L87 Difference]: Start difference. First operand 18251 states and 20579 transitions. Second operand has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:19,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:19,995 INFO L93 Difference]: Finished difference Result 22278 states and 25112 transitions. [2023-12-20 02:49:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 02:49:19,995 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 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 110 [2023-12-20 02:49:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:20,012 INFO L225 Difference]: With dead ends: 22278 [2023-12-20 02:49:20,012 INFO L226 Difference]: Without dead ends: 20880 [2023-12-20 02:49:20,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=251, Invalid=2005, Unknown=0, NotChecked=0, Total=2256 [2023-12-20 02:49:20,018 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 1306 mSDsluCounter, 4975 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 5482 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:20,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 5482 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:49:20,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20880 states. [2023-12-20 02:49:20,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20880 to 18573. [2023-12-20 02:49:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18573 states, 18572 states have (on average 1.127449924617704) internal successors, (20939), 18572 states have internal predecessors, (20939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18573 states to 18573 states and 20939 transitions. [2023-12-20 02:49:20,151 INFO L78 Accepts]: Start accepts. Automaton has 18573 states and 20939 transitions. Word has length 110 [2023-12-20 02:49:20,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:20,151 INFO L495 AbstractCegarLoop]: Abstraction has 18573 states and 20939 transitions. [2023-12-20 02:49:20,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:20,151 INFO L276 IsEmpty]: Start isEmpty. Operand 18573 states and 20939 transitions. [2023-12-20 02:49:20,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:49:20,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:20,154 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:20,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:20,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:20,360 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:20,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:20,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1246621265, now seen corresponding path program 1 times [2023-12-20 02:49:20,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:20,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617017178] [2023-12-20 02:49:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:20,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:21,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:21,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:21,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617017178] [2023-12-20 02:49:21,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617017178] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:21,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632484722] [2023-12-20 02:49:21,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:21,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:21,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:21,226 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:21,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-20 02:49:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:21,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-20 02:49:21,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:49:22,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:49:22,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632484722] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:22,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:49:22,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [23] total 38 [2023-12-20 02:49:22,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875045637] [2023-12-20 02:49:22,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:22,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-20 02:49:22,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:22,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-20 02:49:22,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1359, Unknown=0, NotChecked=0, Total=1482 [2023-12-20 02:49:22,293 INFO L87 Difference]: Start difference. First operand 18573 states and 20939 transitions. Second operand has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 16 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:23,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:23,084 INFO L93 Difference]: Finished difference Result 20327 states and 22904 transitions. [2023-12-20 02:49:23,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:49:23,084 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 16 states have internal predecessors, (105), 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 110 [2023-12-20 02:49:23,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:23,100 INFO L225 Difference]: With dead ends: 20327 [2023-12-20 02:49:23,101 INFO L226 Difference]: Without dead ends: 19685 [2023-12-20 02:49:23,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=228, Invalid=1934, Unknown=0, NotChecked=0, Total=2162 [2023-12-20 02:49:23,105 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 2068 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2068 SdHoareTripleChecker+Valid, 3533 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:23,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2068 Valid, 3533 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:49:23,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19685 states. [2023-12-20 02:49:23,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19685 to 18523. [2023-12-20 02:49:23,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18523 states, 18522 states have (on average 1.127470035633301) internal successors, (20883), 18522 states have internal predecessors, (20883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:23,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18523 states to 18523 states and 20883 transitions. [2023-12-20 02:49:23,245 INFO L78 Accepts]: Start accepts. Automaton has 18523 states and 20883 transitions. Word has length 110 [2023-12-20 02:49:23,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:23,245 INFO L495 AbstractCegarLoop]: Abstraction has 18523 states and 20883 transitions. [2023-12-20 02:49:23,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 16 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:23,245 INFO L276 IsEmpty]: Start isEmpty. Operand 18523 states and 20883 transitions. [2023-12-20 02:49:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:49:23,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:23,247 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:23,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:23,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:23,454 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:23,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:23,454 INFO L85 PathProgramCache]: Analyzing trace with hash 766248049, now seen corresponding path program 1 times [2023-12-20 02:49:23,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:23,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451434669] [2023-12-20 02:49:23,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:23,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:23,858 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:23,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:23,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451434669] [2023-12-20 02:49:23,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451434669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:23,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:23,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-20 02:49:23,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120337827] [2023-12-20 02:49:23,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:23,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-20 02:49:23,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:23,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-20 02:49:23,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:49:23,859 INFO L87 Difference]: Start difference. First operand 18523 states and 20883 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:25,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:25,688 INFO L93 Difference]: Finished difference Result 29710 states and 33643 transitions. [2023-12-20 02:49:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-20 02:49:25,688 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 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 110 [2023-12-20 02:49:25,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:25,715 INFO L225 Difference]: With dead ends: 29710 [2023-12-20 02:49:25,715 INFO L226 Difference]: Without dead ends: 27366 [2023-12-20 02:49:25,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=273, Invalid=1449, Unknown=0, NotChecked=0, Total=1722 [2023-12-20 02:49:25,725 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 2147 mSDsluCounter, 6869 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2147 SdHoareTripleChecker+Valid, 7466 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:25,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2147 Valid, 7466 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2695 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:49:25,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27366 states. [2023-12-20 02:49:25,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27366 to 17880. [2023-12-20 02:49:25,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17880 states, 17879 states have (on average 1.126293416857766) internal successors, (20137), 17879 states have internal predecessors, (20137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:25,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17880 states to 17880 states and 20137 transitions. [2023-12-20 02:49:25,885 INFO L78 Accepts]: Start accepts. Automaton has 17880 states and 20137 transitions. Word has length 110 [2023-12-20 02:49:25,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:25,886 INFO L495 AbstractCegarLoop]: Abstraction has 17880 states and 20137 transitions. [2023-12-20 02:49:25,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:25,886 INFO L276 IsEmpty]: Start isEmpty. Operand 17880 states and 20137 transitions. [2023-12-20 02:49:25,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-20 02:49:25,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:25,888 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:25,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2023-12-20 02:49:25,888 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:25,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:25,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1443158943, now seen corresponding path program 1 times [2023-12-20 02:49:25,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:25,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752649289] [2023-12-20 02:49:25,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:25,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:26,133 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:26,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:26,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752649289] [2023-12-20 02:49:26,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752649289] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:26,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690780312] [2023-12-20 02:49:26,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:26,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:26,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:26,134 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:26,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-20 02:49:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:26,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 02:49:26,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:26,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:27,230 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:27,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690780312] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:27,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:27,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 11] total 30 [2023-12-20 02:49:27,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472475154] [2023-12-20 02:49:27,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:27,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 02:49:27,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:27,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 02:49:27,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=767, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:49:27,231 INFO L87 Difference]: Start difference. First operand 17880 states and 20137 transitions. Second operand has 30 states, 30 states have (on average 9.133333333333333) internal successors, (274), 30 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:28,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:28,188 INFO L93 Difference]: Finished difference Result 19376 states and 21839 transitions. [2023-12-20 02:49:28,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 02:49:28,188 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.133333333333333) internal successors, (274), 30 states have internal predecessors, (274), 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 111 [2023-12-20 02:49:28,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:28,206 INFO L225 Difference]: With dead ends: 19376 [2023-12-20 02:49:28,206 INFO L226 Difference]: Without dead ends: 18798 [2023-12-20 02:49:28,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 203 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=438, Invalid=1914, Unknown=0, NotChecked=0, Total=2352 [2023-12-20 02:49:28,212 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 2605 mSDsluCounter, 8751 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 9341 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:28,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 9341 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:49:28,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18798 states. [2023-12-20 02:49:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18798 to 17868. [2023-12-20 02:49:28,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17868 states, 17867 states have (on average 1.126042424581631) internal successors, (20119), 17867 states have internal predecessors, (20119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:28,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17868 states to 17868 states and 20119 transitions. [2023-12-20 02:49:28,408 INFO L78 Accepts]: Start accepts. Automaton has 17868 states and 20119 transitions. Word has length 111 [2023-12-20 02:49:28,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:28,408 INFO L495 AbstractCegarLoop]: Abstraction has 17868 states and 20119 transitions. [2023-12-20 02:49:28,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.133333333333333) internal successors, (274), 30 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:28,408 INFO L276 IsEmpty]: Start isEmpty. Operand 17868 states and 20119 transitions. [2023-12-20 02:49:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-20 02:49:28,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:28,412 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:28,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-12-20 02:49:28,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:28,618 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:28,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:28,620 INFO L85 PathProgramCache]: Analyzing trace with hash 881267960, now seen corresponding path program 1 times [2023-12-20 02:49:28,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:28,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129250872] [2023-12-20 02:49:28,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:28,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:28,777 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 27 proven. 32 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:49:28,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:28,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129250872] [2023-12-20 02:49:28,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129250872] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:28,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306199988] [2023-12-20 02:49:28,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:28,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:28,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:28,779 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:28,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-20 02:49:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:28,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:49:28,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:29,602 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 27 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:29,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:30,496 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 27 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:30,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306199988] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:30,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:30,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 30 [2023-12-20 02:49:30,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946314147] [2023-12-20 02:49:30,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:30,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-20 02:49:30,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:30,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-20 02:49:30,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2023-12-20 02:49:30,497 INFO L87 Difference]: Start difference. First operand 17868 states and 20119 transitions. Second operand has 31 states, 31 states have (on average 11.35483870967742) internal successors, (352), 30 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:39,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:39,803 INFO L93 Difference]: Finished difference Result 65426 states and 74044 transitions. [2023-12-20 02:49:39,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2023-12-20 02:49:39,804 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 11.35483870967742) internal successors, (352), 30 states have internal predecessors, (352), 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 130 [2023-12-20 02:49:39,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:39,866 INFO L225 Difference]: With dead ends: 65426 [2023-12-20 02:49:39,867 INFO L226 Difference]: Without dead ends: 57244 [2023-12-20 02:49:39,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 236 SyntacticMatches, 1 SemanticMatches, 212 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17581 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=7403, Invalid=38179, Unknown=0, NotChecked=0, Total=45582 [2023-12-20 02:49:39,890 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 5687 mSDsluCounter, 7466 mSDsCounter, 0 mSdLazyCounter, 7041 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5687 SdHoareTripleChecker+Valid, 7909 SdHoareTripleChecker+Invalid, 7197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 7041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:39,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5687 Valid, 7909 Invalid, 7197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 7041 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-20 02:49:39,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57244 states. [2023-12-20 02:49:40,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57244 to 25628. [2023-12-20 02:49:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25628 states, 25627 states have (on average 1.1301752058375931) internal successors, (28963), 25627 states have internal predecessors, (28963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:40,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25628 states to 25628 states and 28963 transitions. [2023-12-20 02:49:40,244 INFO L78 Accepts]: Start accepts. Automaton has 25628 states and 28963 transitions. Word has length 130 [2023-12-20 02:49:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:40,244 INFO L495 AbstractCegarLoop]: Abstraction has 25628 states and 28963 transitions. [2023-12-20 02:49:40,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 11.35483870967742) internal successors, (352), 30 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 25628 states and 28963 transitions. [2023-12-20 02:49:40,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-20 02:49:40,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:40,249 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:40,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-12-20 02:49:40,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:40,455 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:40,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash 43550636, now seen corresponding path program 1 times [2023-12-20 02:49:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404378789] [2023-12-20 02:49:40,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:40,663 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-20 02:49:40,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:40,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404378789] [2023-12-20 02:49:40,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404378789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:40,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:40,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:49:40,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396825049] [2023-12-20 02:49:40,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:40,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:49:40,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:40,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:49:40,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:49:40,664 INFO L87 Difference]: Start difference. First operand 25628 states and 28963 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:41,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:41,287 INFO L93 Difference]: Finished difference Result 33618 states and 38127 transitions. [2023-12-20 02:49:41,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 02:49:41,287 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 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 131 [2023-12-20 02:49:41,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:41,312 INFO L225 Difference]: With dead ends: 33618 [2023-12-20 02:49:41,312 INFO L226 Difference]: Without dead ends: 26056 [2023-12-20 02:49:41,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2023-12-20 02:49:41,321 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 3007 mSDsluCounter, 3009 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3007 SdHoareTripleChecker+Valid, 3528 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:41,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3007 Valid, 3528 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:49:41,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26056 states. [2023-12-20 02:49:41,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26056 to 24319. [2023-12-20 02:49:41,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24319 states, 24318 states have (on average 1.1255859856896127) internal successors, (27372), 24318 states have internal predecessors, (27372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:41,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24319 states to 24319 states and 27372 transitions. [2023-12-20 02:49:41,497 INFO L78 Accepts]: Start accepts. Automaton has 24319 states and 27372 transitions. Word has length 131 [2023-12-20 02:49:41,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:41,497 INFO L495 AbstractCegarLoop]: Abstraction has 24319 states and 27372 transitions. [2023-12-20 02:49:41,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 11 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:41,497 INFO L276 IsEmpty]: Start isEmpty. Operand 24319 states and 27372 transitions. [2023-12-20 02:49:41,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-20 02:49:41,501 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:41,501 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:41,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2023-12-20 02:49:41,501 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:41,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:41,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1611288417, now seen corresponding path program 1 times [2023-12-20 02:49:41,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:41,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945878767] [2023-12-20 02:49:41,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:41,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:41,634 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-20 02:49:41,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:41,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945878767] [2023-12-20 02:49:41,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945878767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:41,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:41,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:49:41,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950024259] [2023-12-20 02:49:41,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:41,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:49:41,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:41,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:49:41,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:49:41,635 INFO L87 Difference]: Start difference. First operand 24319 states and 27372 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:42,133 INFO L93 Difference]: Finished difference Result 25660 states and 28876 transitions. [2023-12-20 02:49:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 02:49:42,134 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 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 131 [2023-12-20 02:49:42,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:42,157 INFO L225 Difference]: With dead ends: 25660 [2023-12-20 02:49:42,158 INFO L226 Difference]: Without dead ends: 24306 [2023-12-20 02:49:42,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:49:42,165 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1585 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:42,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1585 Valid, 1072 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:49:42,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24306 states. [2023-12-20 02:49:42,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24306 to 24300. [2023-12-20 02:49:42,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24300 states, 24299 states have (on average 1.1256430305773901) internal successors, (27352), 24299 states have internal predecessors, (27352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:42,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24300 states to 24300 states and 27352 transitions. [2023-12-20 02:49:42,343 INFO L78 Accepts]: Start accepts. Automaton has 24300 states and 27352 transitions. Word has length 131 [2023-12-20 02:49:42,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:42,343 INFO L495 AbstractCegarLoop]: Abstraction has 24300 states and 27352 transitions. [2023-12-20 02:49:42,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:42,343 INFO L276 IsEmpty]: Start isEmpty. Operand 24300 states and 27352 transitions. [2023-12-20 02:49:42,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-20 02:49:42,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:42,347 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:42,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2023-12-20 02:49:42,348 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:42,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:42,348 INFO L85 PathProgramCache]: Analyzing trace with hash -957085781, now seen corresponding path program 1 times [2023-12-20 02:49:42,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:42,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825584560] [2023-12-20 02:49:42,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:42,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-20 02:49:42,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:42,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825584560] [2023-12-20 02:49:42,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825584560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:42,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:42,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:49:42,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053781391] [2023-12-20 02:49:42,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:42,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:49:42,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:42,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:49:42,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:49:42,564 INFO L87 Difference]: Start difference. First operand 24300 states and 27352 transitions. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:43,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:43,194 INFO L93 Difference]: Finished difference Result 26119 states and 29372 transitions. [2023-12-20 02:49:43,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:49:43,195 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 10 states have internal predecessors, (99), 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 132 [2023-12-20 02:49:43,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:43,217 INFO L225 Difference]: With dead ends: 26119 [2023-12-20 02:49:43,217 INFO L226 Difference]: Without dead ends: 24784 [2023-12-20 02:49:43,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:49:43,225 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 2699 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2699 SdHoareTripleChecker+Valid, 3340 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:43,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2699 Valid, 3340 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:49:43,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24784 states. [2023-12-20 02:49:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24784 to 24289. [2023-12-20 02:49:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24289 states, 24288 states have (on average 1.1256587615283267) internal successors, (27340), 24288 states have internal predecessors, (27340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:43,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24289 states to 24289 states and 27340 transitions. [2023-12-20 02:49:43,407 INFO L78 Accepts]: Start accepts. Automaton has 24289 states and 27340 transitions. Word has length 132 [2023-12-20 02:49:43,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:43,407 INFO L495 AbstractCegarLoop]: Abstraction has 24289 states and 27340 transitions. [2023-12-20 02:49:43,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:43,408 INFO L276 IsEmpty]: Start isEmpty. Operand 24289 states and 27340 transitions. [2023-12-20 02:49:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-20 02:49:43,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:43,412 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:43,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-12-20 02:49:43,412 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:43,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:43,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1897416750, now seen corresponding path program 1 times [2023-12-20 02:49:43,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:43,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641872658] [2023-12-20 02:49:43,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:43,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-20 02:49:43,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:43,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641872658] [2023-12-20 02:49:43,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641872658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:43,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:43,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 02:49:43,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73931910] [2023-12-20 02:49:43,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:43,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:49:43,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:43,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:49:43,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-20 02:49:43,649 INFO L87 Difference]: Start difference. First operand 24289 states and 27340 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:44,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:44,152 INFO L93 Difference]: Finished difference Result 25904 states and 29144 transitions. [2023-12-20 02:49:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 02:49:44,153 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 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 132 [2023-12-20 02:49:44,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:44,172 INFO L225 Difference]: With dead ends: 25904 [2023-12-20 02:49:44,173 INFO L226 Difference]: Without dead ends: 24440 [2023-12-20 02:49:44,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:49:44,179 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 2273 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2273 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:44,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2273 Valid, 2423 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:49:44,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24440 states. [2023-12-20 02:49:44,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24440 to 24261. [2023-12-20 02:49:44,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24261 states, 24260 states have (on average 1.125762572135202) internal successors, (27311), 24260 states have internal predecessors, (27311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24261 states to 24261 states and 27311 transitions. [2023-12-20 02:49:44,532 INFO L78 Accepts]: Start accepts. Automaton has 24261 states and 27311 transitions. Word has length 132 [2023-12-20 02:49:44,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:44,532 INFO L495 AbstractCegarLoop]: Abstraction has 24261 states and 27311 transitions. [2023-12-20 02:49:44,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:44,533 INFO L276 IsEmpty]: Start isEmpty. Operand 24261 states and 27311 transitions. [2023-12-20 02:49:44,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-20 02:49:44,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:44,537 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:44,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2023-12-20 02:49:44,537 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:44,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:44,539 INFO L85 PathProgramCache]: Analyzing trace with hash -75500845, now seen corresponding path program 1 times [2023-12-20 02:49:44,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:44,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477341929] [2023-12-20 02:49:44,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:44,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:44,756 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-20 02:49:44,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:44,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477341929] [2023-12-20 02:49:44,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477341929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:44,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:44,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:49:44,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449859381] [2023-12-20 02:49:44,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:44,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:49:44,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:44,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:49:44,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:49:44,757 INFO L87 Difference]: Start difference. First operand 24261 states and 27311 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:45,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:45,536 INFO L93 Difference]: Finished difference Result 29331 states and 33003 transitions. [2023-12-20 02:49:45,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:49:45,536 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 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 132 [2023-12-20 02:49:45,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:45,567 INFO L225 Difference]: With dead ends: 29331 [2023-12-20 02:49:45,567 INFO L226 Difference]: Without dead ends: 27858 [2023-12-20 02:49:45,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2023-12-20 02:49:45,576 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 1546 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:45,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 1847 Invalid, 1584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:49:45,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27858 states. [2023-12-20 02:49:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27858 to 24247. [2023-12-20 02:49:45,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24247 states, 24246 states have (on average 1.1257527014765323) internal successors, (27295), 24246 states have internal predecessors, (27295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24247 states to 24247 states and 27295 transitions. [2023-12-20 02:49:45,765 INFO L78 Accepts]: Start accepts. Automaton has 24247 states and 27295 transitions. Word has length 132 [2023-12-20 02:49:45,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:45,765 INFO L495 AbstractCegarLoop]: Abstraction has 24247 states and 27295 transitions. [2023-12-20 02:49:45,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:45,765 INFO L276 IsEmpty]: Start isEmpty. Operand 24247 states and 27295 transitions. [2023-12-20 02:49:45,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-20 02:49:45,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:45,769 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:45,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2023-12-20 02:49:45,770 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:45,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:45,770 INFO L85 PathProgramCache]: Analyzing trace with hash 505531709, now seen corresponding path program 1 times [2023-12-20 02:49:45,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:45,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369311889] [2023-12-20 02:49:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:45,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 52 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:49:46,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:46,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369311889] [2023-12-20 02:49:46,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369311889] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:46,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316757104] [2023-12-20 02:49:46,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:46,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:46,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:46,716 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:46,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-20 02:49:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:46,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-20 02:49:46,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 52 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:49:47,642 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 52 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:49:48,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316757104] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:48,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:48,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 11] total 40 [2023-12-20 02:49:48,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538534310] [2023-12-20 02:49:48,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:48,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-20 02:49:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:48,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-20 02:49:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1434, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:49:48,031 INFO L87 Difference]: Start difference. First operand 24247 states and 27295 transitions. Second operand has 40 states, 40 states have (on average 7.825) internal successors, (313), 40 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:53,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:53,728 INFO L93 Difference]: Finished difference Result 31122 states and 35260 transitions. [2023-12-20 02:49:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-20 02:49:53,728 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 7.825) internal successors, (313), 40 states have internal predecessors, (313), 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 133 [2023-12-20 02:49:53,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:53,758 INFO L225 Difference]: With dead ends: 31122 [2023-12-20 02:49:53,758 INFO L226 Difference]: Without dead ends: 29694 [2023-12-20 02:49:53,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2423 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1472, Invalid=8230, Unknown=0, NotChecked=0, Total=9702 [2023-12-20 02:49:53,768 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 5644 mSDsluCounter, 12937 mSDsCounter, 0 mSdLazyCounter, 5616 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5644 SdHoareTripleChecker+Valid, 13597 SdHoareTripleChecker+Invalid, 5693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 5616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:53,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5644 Valid, 13597 Invalid, 5693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 5616 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-20 02:49:53,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29694 states. [2023-12-20 02:49:53,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29694 to 24075. [2023-12-20 02:49:53,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24075 states, 24074 states have (on average 1.1257788485503033) internal successors, (27102), 24074 states have internal predecessors, (27102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24075 states to 24075 states and 27102 transitions. [2023-12-20 02:49:53,971 INFO L78 Accepts]: Start accepts. Automaton has 24075 states and 27102 transitions. Word has length 133 [2023-12-20 02:49:53,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:53,971 INFO L495 AbstractCegarLoop]: Abstraction has 24075 states and 27102 transitions. [2023-12-20 02:49:53,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 7.825) internal successors, (313), 40 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:53,972 INFO L276 IsEmpty]: Start isEmpty. Operand 24075 states and 27102 transitions. [2023-12-20 02:49:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-20 02:49:53,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:53,976 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:53,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:54,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2023-12-20 02:49:54,185 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:54,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:54,185 INFO L85 PathProgramCache]: Analyzing trace with hash -508811289, now seen corresponding path program 1 times [2023-12-20 02:49:54,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:54,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39085571] [2023-12-20 02:49:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:54,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-20 02:49:54,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:54,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39085571] [2023-12-20 02:49:54,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39085571] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:54,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132740512] [2023-12-20 02:49:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:54,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:54,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:54,473 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:54,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-20 02:49:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:54,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-20 02:49:54,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:55,663 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 50 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:49:55,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:56,117 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 50 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:49:56,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132740512] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:56,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:56,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11] total 32 [2023-12-20 02:49:56,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958852816] [2023-12-20 02:49:56,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:56,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-20 02:49:56,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:56,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-20 02:49:56,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=910, Unknown=0, NotChecked=0, Total=992 [2023-12-20 02:49:56,118 INFO L87 Difference]: Start difference. First operand 24075 states and 27102 transitions. Second operand has 32 states, 32 states have (on average 9.8125) internal successors, (314), 32 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:10,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:10,661 INFO L93 Difference]: Finished difference Result 44863 states and 50248 transitions. [2023-12-20 02:50:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-12-20 02:50:10,662 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.8125) internal successors, (314), 32 states have internal predecessors, (314), 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 134 [2023-12-20 02:50:10,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:10,707 INFO L225 Difference]: With dead ends: 44863 [2023-12-20 02:50:10,707 INFO L226 Difference]: Without dead ends: 41823 [2023-12-20 02:50:10,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18311 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=5540, Invalid=45310, Unknown=0, NotChecked=0, Total=50850 [2023-12-20 02:50:10,725 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 8510 mSDsluCounter, 10931 mSDsCounter, 0 mSdLazyCounter, 10590 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8510 SdHoareTripleChecker+Valid, 11527 SdHoareTripleChecker+Invalid, 10832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 10590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:10,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8510 Valid, 11527 Invalid, 10832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 10590 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-20 02:50:10,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41823 states. [2023-12-20 02:50:11,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41823 to 24083. [2023-12-20 02:50:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24083 states, 24082 states have (on average 1.125654015447222) internal successors, (27108), 24082 states have internal predecessors, (27108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:11,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24083 states to 24083 states and 27108 transitions. [2023-12-20 02:50:11,050 INFO L78 Accepts]: Start accepts. Automaton has 24083 states and 27108 transitions. Word has length 134 [2023-12-20 02:50:11,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:11,050 INFO L495 AbstractCegarLoop]: Abstraction has 24083 states and 27108 transitions. [2023-12-20 02:50:11,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.8125) internal successors, (314), 32 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 24083 states and 27108 transitions. [2023-12-20 02:50:11,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-20 02:50:11,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:11,054 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:50:11,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-12-20 02:50:11,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:50:11,258 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:50:11,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:11,259 INFO L85 PathProgramCache]: Analyzing trace with hash -456393210, now seen corresponding path program 1 times [2023-12-20 02:50:11,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:11,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186269056] [2023-12-20 02:50:11,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:11,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:11,521 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-20 02:50:11,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:11,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186269056] [2023-12-20 02:50:11,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186269056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:50:11,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:50:11,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 02:50:11,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182815038] [2023-12-20 02:50:11,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:50:11,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:50:11,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:50:11,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:50:11,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:50:11,523 INFO L87 Difference]: Start difference. First operand 24083 states and 27108 transitions. Second operand has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 12 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:12,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:12,830 INFO L93 Difference]: Finished difference Result 28668 states and 32476 transitions. [2023-12-20 02:50:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 02:50:12,831 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 12 states have internal predecessors, (113), 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 135 [2023-12-20 02:50:12,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:12,858 INFO L225 Difference]: With dead ends: 28668 [2023-12-20 02:50:12,858 INFO L226 Difference]: Without dead ends: 27317 [2023-12-20 02:50:12,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=240, Invalid=882, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 02:50:12,866 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 1422 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 2394 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:12,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 2629 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2394 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:50:12,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27317 states. [2023-12-20 02:50:13,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27317 to 24069. [2023-12-20 02:50:13,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24069 states, 24068 states have (on average 1.1256440086421804) internal successors, (27092), 24068 states have internal predecessors, (27092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:13,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24069 states to 24069 states and 27092 transitions. [2023-12-20 02:50:13,057 INFO L78 Accepts]: Start accepts. Automaton has 24069 states and 27092 transitions. Word has length 135 [2023-12-20 02:50:13,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:13,057 INFO L495 AbstractCegarLoop]: Abstraction has 24069 states and 27092 transitions. [2023-12-20 02:50:13,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.692307692307692) internal successors, (113), 12 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:13,058 INFO L276 IsEmpty]: Start isEmpty. Operand 24069 states and 27092 transitions. [2023-12-20 02:50:13,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 02:50:13,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:13,062 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:50:13,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2023-12-20 02:50:13,062 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:50:13,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:13,062 INFO L85 PathProgramCache]: Analyzing trace with hash 862996868, now seen corresponding path program 1 times [2023-12-20 02:50:13,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:13,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941135796] [2023-12-20 02:50:13,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:13,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 46 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-20 02:50:14,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:14,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941135796] [2023-12-20 02:50:14,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941135796] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:50:14,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517839980] [2023-12-20 02:50:14,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:14,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:50:14,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:50:14,054 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:50:14,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-20 02:50:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:14,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-20 02:50:14,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:50:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 46 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-20 02:50:15,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:50:15,778 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 46 proven. 17 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-20 02:50:15,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517839980] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:50:15,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:50:15,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 13, 12] total 44 [2023-12-20 02:50:15,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022227496] [2023-12-20 02:50:15,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:50:15,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-20 02:50:15,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:50:15,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-20 02:50:15,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1761, Unknown=0, NotChecked=0, Total=1892 [2023-12-20 02:50:15,780 INFO L87 Difference]: Start difference. First operand 24069 states and 27092 transitions. Second operand has 44 states, 44 states have (on average 7.340909090909091) internal successors, (323), 44 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:33,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:33,165 INFO L93 Difference]: Finished difference Result 38365 states and 42924 transitions. [2023-12-20 02:50:33,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2023-12-20 02:50:33,166 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 7.340909090909091) internal successors, (323), 44 states have internal predecessors, (323), 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 136 [2023-12-20 02:50:33,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:33,204 INFO L225 Difference]: With dead ends: 38365 [2023-12-20 02:50:33,205 INFO L226 Difference]: Without dead ends: 37054 [2023-12-20 02:50:33,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12424 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=3916, Invalid=32756, Unknown=0, NotChecked=0, Total=36672 [2023-12-20 02:50:33,218 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 10255 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 8152 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10255 SdHoareTripleChecker+Valid, 18536 SdHoareTripleChecker+Invalid, 8308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 8152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:33,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10255 Valid, 18536 Invalid, 8308 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [156 Valid, 8152 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-20 02:50:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37054 states. [2023-12-20 02:50:33,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37054 to 24116. [2023-12-20 02:50:33,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24116 states, 24115 states have (on average 1.1254820651047066) internal successors, (27141), 24115 states have internal predecessors, (27141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:33,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24116 states to 24116 states and 27141 transitions. [2023-12-20 02:50:33,464 INFO L78 Accepts]: Start accepts. Automaton has 24116 states and 27141 transitions. Word has length 136 [2023-12-20 02:50:33,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:33,464 INFO L495 AbstractCegarLoop]: Abstraction has 24116 states and 27141 transitions. [2023-12-20 02:50:33,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 7.340909090909091) internal successors, (323), 44 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:33,464 INFO L276 IsEmpty]: Start isEmpty. Operand 24116 states and 27141 transitions. [2023-12-20 02:50:33,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-20 02:50:33,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:33,469 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:50:33,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-20 02:50:33,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:50:33,678 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:50:33,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:33,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1491392815, now seen corresponding path program 1 times [2023-12-20 02:50:33,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:33,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994366942] [2023-12-20 02:50:33,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:33,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:34,051 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 27 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:50:34,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:34,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994366942] [2023-12-20 02:50:34,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994366942] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:50:34,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97937760] [2023-12-20 02:50:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:34,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:50:34,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:50:34,052 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:50:34,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-20 02:50:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:34,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-20 02:50:34,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:50:35,608 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 27 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:50:35,608 INFO L327 TraceCheckSpWp]: Computing backward predicates...