/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 13:13:56,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 13:13:56,835 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 13:13:56,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 13:13:56,840 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 13:13:56,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 13:13:56,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 13:13:56,864 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 13:13:56,865 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 13:13:56,868 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 13:13:56,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 13:13:56,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 13:13:56,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 13:13:56,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 13:13:56,870 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 13:13:56,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 13:13:56,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 13:13:56,870 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 13:13:56,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 13:13:56,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 13:13:56,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 13:13:56,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 13:13:56,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 13:13:56,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 13:13:56,872 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 13:13:56,872 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 13:13:56,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 13:13:56,872 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 13:13:56,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 13:13:56,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 13:13:56,874 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 13:13:56,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 13:13:56,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:13:56,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 13:13:56,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 13:13:56,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 13:13:56,875 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 13:13:56,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 13:13:56,875 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 13:13:56,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 13:13:56,875 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 13:13:56,875 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 13:13:56,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 13:13:56,876 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 13:13:57,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 13:13:57,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 13:13:57,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 13:13:57,125 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 13:13:57,126 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 13:13:57,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-12-21 13:13:58,279 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 13:13:58,579 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 13:13:58,579 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-12-21 13:13:58,606 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5295102d7/cf154e1dc0234f4fb91d340f70974aae/FLAG5da5a2fbd [2023-12-21 13:13:58,620 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5295102d7/cf154e1dc0234f4fb91d340f70974aae [2023-12-21 13:13:58,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 13:13:58,623 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 13:13:58,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 13:13:58,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 13:13:58,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 13:13:58,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:13:58" (1/1) ... [2023-12-21 13:13:58,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9ed3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:58, skipping insertion in model container [2023-12-21 13:13:58,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:13:58" (1/1) ... [2023-12-21 13:13:58,707 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 13:13:58,975 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8426,8439] [2023-12-21 13:13:59,003 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12993,13006] [2023-12-21 13:13:59,026 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20763,20776] [2023-12-21 13:13:59,059 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27894,27907] [2023-12-21 13:13:59,184 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49218,49231] [2023-12-21 13:13:59,311 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80449,80462] [2023-12-21 13:13:59,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:13:59,466 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 13:13:59,496 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8426,8439] [2023-12-21 13:13:59,506 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12993,13006] [2023-12-21 13:13:59,525 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20763,20776] [2023-12-21 13:13:59,548 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27894,27907] [2023-12-21 13:13:59,596 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49218,49231] [2023-12-21 13:13:59,646 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.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80449,80462] [2023-12-21 13:13:59,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 13:13:59,739 INFO L206 MainTranslator]: Completed translation [2023-12-21 13:13:59,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59 WrapperNode [2023-12-21 13:13:59,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 13:13:59,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 13:13:59,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 13:13:59,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 13:13:59,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:13:59,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:13:59,913 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6440 [2023-12-21 13:13:59,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 13:13:59,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 13:13:59,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 13:13:59,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 13:13:59,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:13:59,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:13:59,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:13:59,993 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-21 13:13:59,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:13:59,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:14:00,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:14:00,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:14:00,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:14:00,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:14:00,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 13:14:00,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 13:14:00,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 13:14:00,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 13:14:00,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (1/1) ... [2023-12-21 13:14:00,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 13:14:00,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:14:00,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 13:14:00,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 13:14:00,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 13:14:00,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 13:14:00,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 13:14:00,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 13:14:00,403 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 13:14:00,404 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 13:14:02,599 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 13:14:02,655 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 13:14:02,655 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-21 13:14:02,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:02 BoogieIcfgContainer [2023-12-21 13:14:02,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 13:14:02,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 13:14:02,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 13:14:02,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 13:14:02,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:13:58" (1/3) ... [2023-12-21 13:14:02,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cce3725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:02, skipping insertion in model container [2023-12-21 13:14:02,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:13:59" (2/3) ... [2023-12-21 13:14:02,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cce3725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:02, skipping insertion in model container [2023-12-21 13:14:02,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:02" (3/3) ... [2023-12-21 13:14:02,664 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-12-21 13:14:02,677 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 13:14:02,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-21 13:14:02,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 13:14:02,744 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;@3ebc074f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 13:14:02,744 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-12-21 13:14:02,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 1288 states, 1281 states have (on average 1.7728337236533958) internal successors, (2271), 1287 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:02,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-21 13:14:02,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:02,774 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] [2023-12-21 13:14:02,774 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)] === [2023-12-21 13:14:02,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:02,780 INFO L85 PathProgramCache]: Analyzing trace with hash -2092473724, now seen corresponding path program 1 times [2023-12-21 13:14:02,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:02,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131288159] [2023-12-21 13:14:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:02,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:03,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:03,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131288159] [2023-12-21 13:14:03,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131288159] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:03,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:03,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:14:03,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474284184] [2023-12-21 13:14:03,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:03,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:03,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:03,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:03,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:03,213 INFO L87 Difference]: Start difference. First operand has 1288 states, 1281 states have (on average 1.7728337236533958) internal successors, (2271), 1287 states have internal predecessors, (2271), 0 states have call successors, (0), 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 10.2) 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) [2023-12-21 13:14:04,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:04,407 INFO L93 Difference]: Finished difference Result 2517 states and 4329 transitions. [2023-12-21 13:14:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:14:04,409 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 [2023-12-21 13:14:04,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:04,422 INFO L225 Difference]: With dead ends: 2517 [2023-12-21 13:14:04,423 INFO L226 Difference]: Without dead ends: 1597 [2023-12-21 13:14:04,427 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 [2023-12-21 13:14:04,430 INFO L413 NwaCegarLoop]: 1046 mSDtfsCounter, 7091 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7091 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:04,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7091 Valid, 1550 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 13:14:04,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1597 states. [2023-12-21 13:14:04,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1597 to 1591. [2023-12-21 13:14:04,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1591 states, 1585 states have (on average 1.3078864353312303) internal successors, (2073), 1590 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1591 states to 1591 states and 2073 transitions. [2023-12-21 13:14:04,531 INFO L78 Accepts]: Start accepts. Automaton has 1591 states and 2073 transitions. Word has length 51 [2023-12-21 13:14:04,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:04,531 INFO L495 AbstractCegarLoop]: Abstraction has 1591 states and 2073 transitions. [2023-12-21 13:14:04,532 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) [2023-12-21 13:14:04,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1591 states and 2073 transitions. [2023-12-21 13:14:04,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-21 13:14:04,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:04,534 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] [2023-12-21 13:14:04,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-21 13:14:04,534 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)] === [2023-12-21 13:14:04,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:04,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1158227955, now seen corresponding path program 1 times [2023-12-21 13:14:04,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:04,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622622687] [2023-12-21 13:14:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:04,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:04,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:04,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622622687] [2023-12-21 13:14:04,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622622687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:04,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:04,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:14:04,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902603127] [2023-12-21 13:14:04,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:04,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:04,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:04,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:04,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:04,692 INFO L87 Difference]: Start difference. First operand 1591 states and 2073 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 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) [2023-12-21 13:14:05,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:05,409 INFO L93 Difference]: Finished difference Result 3209 states and 4212 transitions. [2023-12-21 13:14:05,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:14:05,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 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 [2023-12-21 13:14:05,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:05,416 INFO L225 Difference]: With dead ends: 3209 [2023-12-21 13:14:05,417 INFO L226 Difference]: Without dead ends: 2215 [2023-12-21 13:14:05,418 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 [2023-12-21 13:14:05,419 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 4976 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:05,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4976 Valid, 1042 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:14:05,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2023-12-21 13:14:05,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2201. [2023-12-21 13:14:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 2195 states have (on average 1.3184510250569477) internal successors, (2894), 2200 states have internal predecessors, (2894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:05,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2894 transitions. [2023-12-21 13:14:05,460 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2894 transitions. Word has length 52 [2023-12-21 13:14:05,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:05,460 INFO L495 AbstractCegarLoop]: Abstraction has 2201 states and 2894 transitions. [2023-12-21 13:14:05,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 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) [2023-12-21 13:14:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2894 transitions. [2023-12-21 13:14:05,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-21 13:14:05,465 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:05,465 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] [2023-12-21 13:14:05,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-21 13:14:05,465 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)] === [2023-12-21 13:14:05,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:05,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1808254749, now seen corresponding path program 1 times [2023-12-21 13:14:05,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:05,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377358194] [2023-12-21 13:14:05,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:05,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:05,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:05,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377358194] [2023-12-21 13:14:05,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377358194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:05,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:05,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:14:05,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865057560] [2023-12-21 13:14:05,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:05,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:05,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:05,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:05,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:05,611 INFO L87 Difference]: Start difference. First operand 2201 states and 2894 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 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) [2023-12-21 13:14:06,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:06,322 INFO L93 Difference]: Finished difference Result 4508 states and 5998 transitions. [2023-12-21 13:14:06,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:14:06,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 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 [2023-12-21 13:14:06,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:06,330 INFO L225 Difference]: With dead ends: 4508 [2023-12-21 13:14:06,331 INFO L226 Difference]: Without dead ends: 3077 [2023-12-21 13:14:06,332 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 [2023-12-21 13:14:06,333 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 4462 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:06,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4462 Valid, 930 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:14:06,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2023-12-21 13:14:06,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 3067. [2023-12-21 13:14:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3061 states have (on average 1.3230970271153217) internal successors, (4050), 3066 states have internal predecessors, (4050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:06,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4050 transitions. [2023-12-21 13:14:06,382 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4050 transitions. Word has length 52 [2023-12-21 13:14:06,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:06,383 INFO L495 AbstractCegarLoop]: Abstraction has 3067 states and 4050 transitions. [2023-12-21 13:14:06,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 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) [2023-12-21 13:14:06,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4050 transitions. [2023-12-21 13:14:06,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 13:14:06,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:06,385 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] [2023-12-21 13:14:06,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-21 13:14:06,386 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-21 13:14:06,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:06,386 INFO L85 PathProgramCache]: Analyzing trace with hash 77244356, now seen corresponding path program 1 times [2023-12-21 13:14:06,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:06,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188634926] [2023-12-21 13:14:06,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:06,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:06,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:06,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188634926] [2023-12-21 13:14:06,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188634926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:06,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:06,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:14:06,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708712787] [2023-12-21 13:14:06,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:06,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:14:06,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:06,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:14:06,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:14:06,645 INFO L87 Difference]: Start difference. First operand 3067 states and 4050 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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) [2023-12-21 13:14:07,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:07,912 INFO L93 Difference]: Finished difference Result 5204 states and 7152 transitions. [2023-12-21 13:14:07,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 13:14:07,912 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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 [2023-12-21 13:14:07,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:07,925 INFO L225 Difference]: With dead ends: 5204 [2023-12-21 13:14:07,926 INFO L226 Difference]: Without dead ends: 4500 [2023-12-21 13:14:07,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:14:07,936 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 2836 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 2129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:07,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 2623 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2129 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 13:14:07,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4500 states. [2023-12-21 13:14:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4500 to 3067. [2023-12-21 13:14:08,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3061 states have (on average 1.3227703364913428) internal successors, (4049), 3066 states have internal predecessors, (4049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:08,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4049 transitions. [2023-12-21 13:14:08,051 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4049 transitions. Word has length 54 [2023-12-21 13:14:08,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:08,052 INFO L495 AbstractCegarLoop]: Abstraction has 3067 states and 4049 transitions. [2023-12-21 13:14:08,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 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) [2023-12-21 13:14:08,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4049 transitions. [2023-12-21 13:14:08,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 13:14:08,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:08,055 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] [2023-12-21 13:14:08,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-21 13:14:08,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-21 13:14:08,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:08,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1063699171, now seen corresponding path program 1 times [2023-12-21 13:14:08,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:08,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730624216] [2023-12-21 13:14:08,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:08,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:08,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:08,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730624216] [2023-12-21 13:14:08,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730624216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:08,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:08,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:14:08,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372820800] [2023-12-21 13:14:08,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:08,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:14:08,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:08,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:14:08,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:14:08,286 INFO L87 Difference]: Start difference. First operand 3067 states and 4049 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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) [2023-12-21 13:14:09,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:09,931 INFO L93 Difference]: Finished difference Result 6020 states and 8275 transitions. [2023-12-21 13:14:09,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:14:09,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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 [2023-12-21 13:14:09,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:09,972 INFO L225 Difference]: With dead ends: 6020 [2023-12-21 13:14:09,972 INFO L226 Difference]: Without dead ends: 5450 [2023-12-21 13:14:09,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:14:09,980 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 3894 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 3732 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3894 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:09,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3894 Valid, 3884 Invalid, 3786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3732 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 13:14:09,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2023-12-21 13:14:10,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 3067. [2023-12-21 13:14:10,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3061 states have (on average 1.3224436458673636) internal successors, (4048), 3066 states have internal predecessors, (4048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:10,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4048 transitions. [2023-12-21 13:14:10,093 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4048 transitions. Word has length 54 [2023-12-21 13:14:10,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:10,094 INFO L495 AbstractCegarLoop]: Abstraction has 3067 states and 4048 transitions. [2023-12-21 13:14:10,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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) [2023-12-21 13:14:10,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4048 transitions. [2023-12-21 13:14:10,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-21 13:14:10,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:10,096 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] [2023-12-21 13:14:10,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-21 13:14:10,097 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-21 13:14:10,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:10,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1340474756, now seen corresponding path program 1 times [2023-12-21 13:14:10,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:10,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858886256] [2023-12-21 13:14:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:10,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:10,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:10,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:10,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858886256] [2023-12-21 13:14:10,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858886256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:10,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:10,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:14:10,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150757860] [2023-12-21 13:14:10,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:10,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:14:10,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:10,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:14:10,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:14:10,336 INFO L87 Difference]: Start difference. First operand 3067 states and 4048 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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) [2023-12-21 13:14:11,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:11,814 INFO L93 Difference]: Finished difference Result 4626 states and 6248 transitions. [2023-12-21 13:14:11,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:14:11,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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 [2023-12-21 13:14:11,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:11,826 INFO L225 Difference]: With dead ends: 4626 [2023-12-21 13:14:11,827 INFO L226 Difference]: Without dead ends: 4620 [2023-12-21 13:14:11,829 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 [2023-12-21 13:14:11,829 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2682 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 3181 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 3743 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 3181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:11,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 3743 Invalid, 3207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 3181 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 13:14:11,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4620 states. [2023-12-21 13:14:11,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4620 to 3067. [2023-12-21 13:14:11,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3061 states have (on average 1.3221169552433845) internal successors, (4047), 3066 states have internal predecessors, (4047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:11,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 4047 transitions. [2023-12-21 13:14:11,888 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 4047 transitions. Word has length 54 [2023-12-21 13:14:11,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:11,888 INFO L495 AbstractCegarLoop]: Abstraction has 3067 states and 4047 transitions. [2023-12-21 13:14:11,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 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) [2023-12-21 13:14:11,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 4047 transitions. [2023-12-21 13:14:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-21 13:14:11,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:11,890 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] [2023-12-21 13:14:11,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 13:14:11,891 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)] === [2023-12-21 13:14:11,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:11,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1906140159, now seen corresponding path program 1 times [2023-12-21 13:14:11,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:11,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531959445] [2023-12-21 13:14:11,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:11,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:11,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:11,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:11,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531959445] [2023-12-21 13:14:11,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531959445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:11,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:11,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:11,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304506187] [2023-12-21 13:14:11,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:11,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:11,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:11,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:11,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:11,940 INFO L87 Difference]: Start difference. First operand 3067 states and 4047 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-12-21 13:14:11,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:11,987 INFO L93 Difference]: Finished difference Result 4023 states and 5496 transitions. [2023-12-21 13:14:11,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:11,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 [2023-12-21 13:14:11,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:11,995 INFO L225 Difference]: With dead ends: 4023 [2023-12-21 13:14:11,995 INFO L226 Difference]: Without dead ends: 3086 [2023-12-21 13:14:11,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:11,997 INFO L413 NwaCegarLoop]: 1184 mSDtfsCounter, 579 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:11,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1788 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:12,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2023-12-21 13:14:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 3084. [2023-12-21 13:14:12,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 3078 states have (on average 1.338206627680312) internal successors, (4119), 3083 states have internal predecessors, (4119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 4119 transitions. [2023-12-21 13:14:12,029 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 4119 transitions. Word has length 55 [2023-12-21 13:14:12,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:12,030 INFO L495 AbstractCegarLoop]: Abstraction has 3084 states and 4119 transitions. [2023-12-21 13:14:12,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-12-21 13:14:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 4119 transitions. [2023-12-21 13:14:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-21 13:14:12,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:12,032 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] [2023-12-21 13:14:12,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 13:14:12,032 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)] === [2023-12-21 13:14:12,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:12,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1049277419, now seen corresponding path program 1 times [2023-12-21 13:14:12,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:12,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693045881] [2023-12-21 13:14:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:12,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:12,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:12,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693045881] [2023-12-21 13:14:12,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693045881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:12,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:12,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:12,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338699315] [2023-12-21 13:14:12,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:12,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:12,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:12,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:12,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:12,091 INFO L87 Difference]: Start difference. First operand 3084 states and 4119 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-12-21 13:14:12,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:12,140 INFO L93 Difference]: Finished difference Result 4758 states and 6654 transitions. [2023-12-21 13:14:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:12,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 [2023-12-21 13:14:12,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:12,160 INFO L225 Difference]: With dead ends: 4758 [2023-12-21 13:14:12,160 INFO L226 Difference]: Without dead ends: 3514 [2023-12-21 13:14:12,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:12,164 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 587 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1726 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 [2023-12-21 13:14:12,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1726 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:12,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2023-12-21 13:14:12,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3512. [2023-12-21 13:14:12,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3512 states, 3506 states have (on average 1.369652025099829) internal successors, (4802), 3511 states have internal predecessors, (4802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:12,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3512 states to 3512 states and 4802 transitions. [2023-12-21 13:14:12,248 INFO L78 Accepts]: Start accepts. Automaton has 3512 states and 4802 transitions. Word has length 55 [2023-12-21 13:14:12,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:12,248 INFO L495 AbstractCegarLoop]: Abstraction has 3512 states and 4802 transitions. [2023-12-21 13:14:12,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-12-21 13:14:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3512 states and 4802 transitions. [2023-12-21 13:14:12,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-21 13:14:12,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:12,250 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] [2023-12-21 13:14:12,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 13:14:12,250 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)] === [2023-12-21 13:14:12,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:12,251 INFO L85 PathProgramCache]: Analyzing trace with hash 772696843, now seen corresponding path program 1 times [2023-12-21 13:14:12,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:12,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776881138] [2023-12-21 13:14:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:12,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:12,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:12,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:12,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776881138] [2023-12-21 13:14:12,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776881138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:12,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:12,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:12,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986679029] [2023-12-21 13:14:12,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:12,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:12,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:12,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:12,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:12,300 INFO L87 Difference]: Start difference. First operand 3512 states and 4802 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-12-21 13:14:12,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:12,412 INFO L93 Difference]: Finished difference Result 7722 states and 10787 transitions. [2023-12-21 13:14:12,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:12,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 [2023-12-21 13:14:12,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:12,420 INFO L225 Difference]: With dead ends: 7722 [2023-12-21 13:14:12,420 INFO L226 Difference]: Without dead ends: 5313 [2023-12-21 13:14:12,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:12,425 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 657 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1961 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 [2023-12-21 13:14:12,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1961 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:14:12,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5313 states. [2023-12-21 13:14:12,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5313 to 5307. [2023-12-21 13:14:12,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5301 states have (on average 1.3584229390681004) internal successors, (7201), 5306 states have internal predecessors, (7201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:12,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 7201 transitions. [2023-12-21 13:14:12,495 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 7201 transitions. Word has length 55 [2023-12-21 13:14:12,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:12,496 INFO L495 AbstractCegarLoop]: Abstraction has 5307 states and 7201 transitions. [2023-12-21 13:14:12,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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) [2023-12-21 13:14:12,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 7201 transitions. [2023-12-21 13:14:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-21 13:14:12,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:12,499 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] [2023-12-21 13:14:12,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 13:14:12,499 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-21 13:14:12,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2137132613, now seen corresponding path program 1 times [2023-12-21 13:14:12,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:12,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662603164] [2023-12-21 13:14:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:12,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:12,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:12,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662603164] [2023-12-21 13:14:12,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662603164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:12,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:12,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-21 13:14:12,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668210661] [2023-12-21 13:14:12,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:12,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 13:14:12,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:12,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 13:14:12,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-21 13:14:12,950 INFO L87 Difference]: Start difference. First operand 5307 states and 7201 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 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) [2023-12-21 13:14:13,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:13,986 INFO L93 Difference]: Finished difference Result 10807 states and 14961 transitions. [2023-12-21 13:14:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:14:13,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 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 [2023-12-21 13:14:13,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:14,030 INFO L225 Difference]: With dead ends: 10807 [2023-12-21 13:14:14,031 INFO L226 Difference]: Without dead ends: 10696 [2023-12-21 13:14:14,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:14:14,036 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 4801 mSDsluCounter, 5143 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 6254 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:14,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4801 Valid, 6254 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:14:14,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10696 states. [2023-12-21 13:14:14,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10696 to 5294. [2023-12-21 13:14:14,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5294 states, 5289 states have (on average 1.3586689355265646) internal successors, (7186), 5293 states have internal predecessors, (7186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:14,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5294 states to 5294 states and 7186 transitions. [2023-12-21 13:14:14,118 INFO L78 Accepts]: Start accepts. Automaton has 5294 states and 7186 transitions. Word has length 56 [2023-12-21 13:14:14,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:14,118 INFO L495 AbstractCegarLoop]: Abstraction has 5294 states and 7186 transitions. [2023-12-21 13:14:14,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 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) [2023-12-21 13:14:14,118 INFO L276 IsEmpty]: Start isEmpty. Operand 5294 states and 7186 transitions. [2023-12-21 13:14:14,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-21 13:14:14,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:14,121 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] [2023-12-21 13:14:14,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-21 13:14:14,121 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-21 13:14:14,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:14,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1716509337, now seen corresponding path program 1 times [2023-12-21 13:14:14,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:14,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160607051] [2023-12-21 13:14:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:14,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:14,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:14,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:14,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160607051] [2023-12-21 13:14:14,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160607051] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:14,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:14,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:14,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300480069] [2023-12-21 13:14:14,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:14,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:14,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:14,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:14,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:14,160 INFO L87 Difference]: Start difference. First operand 5294 states and 7186 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2023-12-21 13:14:14,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:14,244 INFO L93 Difference]: Finished difference Result 9764 states and 13509 transitions. [2023-12-21 13:14:14,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:14,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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 [2023-12-21 13:14:14,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:14,268 INFO L225 Difference]: With dead ends: 9764 [2023-12-21 13:14:14,268 INFO L226 Difference]: Without dead ends: 5598 [2023-12-21 13:14:14,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:14,274 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 820 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:14,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1219 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:14:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5598 states. [2023-12-21 13:14:14,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5598 to 4465. [2023-12-21 13:14:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4465 states, 4461 states have (on average 1.3799596503026228) internal successors, (6156), 4464 states have internal predecessors, (6156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:14,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4465 states to 4465 states and 6156 transitions. [2023-12-21 13:14:14,327 INFO L78 Accepts]: Start accepts. Automaton has 4465 states and 6156 transitions. Word has length 56 [2023-12-21 13:14:14,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:14,327 INFO L495 AbstractCegarLoop]: Abstraction has 4465 states and 6156 transitions. [2023-12-21 13:14:14,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2023-12-21 13:14:14,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4465 states and 6156 transitions. [2023-12-21 13:14:14,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-21 13:14:14,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:14,332 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] [2023-12-21 13:14:14,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 13:14:14,332 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-21 13:14:14,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:14,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1650159387, now seen corresponding path program 1 times [2023-12-21 13:14:14,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:14,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664569135] [2023-12-21 13:14:14,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:14,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:14,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:14,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:14,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664569135] [2023-12-21 13:14:14,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664569135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:14,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:14,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:14,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226330221] [2023-12-21 13:14:14,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:14,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:14,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:14,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:14,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:14,374 INFO L87 Difference]: Start difference. First operand 4465 states and 6156 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2023-12-21 13:14:14,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:14,431 INFO L93 Difference]: Finished difference Result 8536 states and 11995 transitions. [2023-12-21 13:14:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:14,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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 [2023-12-21 13:14:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:14,438 INFO L225 Difference]: With dead ends: 8536 [2023-12-21 13:14:14,438 INFO L226 Difference]: Without dead ends: 4870 [2023-12-21 13:14:14,443 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 [2023-12-21 13:14:14,443 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 638 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:14,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1000 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:14,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4870 states. [2023-12-21 13:14:14,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4870 to 3896. [2023-12-21 13:14:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3893 states have (on average 1.3932699717441561) internal successors, (5424), 3895 states have internal predecessors, (5424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:14,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5424 transitions. [2023-12-21 13:14:14,490 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5424 transitions. Word has length 56 [2023-12-21 13:14:14,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:14,491 INFO L495 AbstractCegarLoop]: Abstraction has 3896 states and 5424 transitions. [2023-12-21 13:14:14,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2023-12-21 13:14:14,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5424 transitions. [2023-12-21 13:14:14,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-21 13:14:14,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:14,492 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] [2023-12-21 13:14:14,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 13:14:14,493 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)] === [2023-12-21 13:14:14,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:14,493 INFO L85 PathProgramCache]: Analyzing trace with hash 235795551, now seen corresponding path program 1 times [2023-12-21 13:14:14,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:14,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14531624] [2023-12-21 13:14:14,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:14,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:14,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:14,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14531624] [2023-12-21 13:14:14,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14531624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:14,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:14,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:14,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577616039] [2023-12-21 13:14:14,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:14,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:14,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:14,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:14,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:14,539 INFO L87 Difference]: Start difference. First operand 3896 states and 5424 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2023-12-21 13:14:14,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:14,609 INFO L93 Difference]: Finished difference Result 7793 states and 11031 transitions. [2023-12-21 13:14:14,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:14,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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 [2023-12-21 13:14:14,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:14,615 INFO L225 Difference]: With dead ends: 7793 [2023-12-21 13:14:14,616 INFO L226 Difference]: Without dead ends: 4238 [2023-12-21 13:14:14,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:14,621 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 453 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:14,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 826 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:14,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2023-12-21 13:14:14,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 3479. [2023-12-21 13:14:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 3476 states have (on average 1.4076524741081704) internal successors, (4893), 3478 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:14,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 4893 transitions. [2023-12-21 13:14:14,660 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 4893 transitions. Word has length 56 [2023-12-21 13:14:14,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:14,660 INFO L495 AbstractCegarLoop]: Abstraction has 3479 states and 4893 transitions. [2023-12-21 13:14:14,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 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) [2023-12-21 13:14:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 4893 transitions. [2023-12-21 13:14:14,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 13:14:14,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:14,661 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] [2023-12-21 13:14:14,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 13:14:14,662 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-21 13:14:14,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:14,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1739046160, now seen corresponding path program 1 times [2023-12-21 13:14:14,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:14,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802252245] [2023-12-21 13:14:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:14,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:15,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:15,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:15,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802252245] [2023-12-21 13:14:15,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802252245] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:15,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:15,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 13:14:15,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509736063] [2023-12-21 13:14:15,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:15,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:14:15,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:15,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:14:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:14:15,163 INFO L87 Difference]: Start difference. First operand 3479 states and 4893 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:15,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:15,874 INFO L93 Difference]: Finished difference Result 7412 states and 10472 transitions. [2023-12-21 13:14:15,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 13:14:15,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-12-21 13:14:15,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:15,886 INFO L225 Difference]: With dead ends: 7412 [2023-12-21 13:14:15,886 INFO L226 Difference]: Without dead ends: 7260 [2023-12-21 13:14:15,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:14:15,891 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 3720 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3720 SdHoareTripleChecker+Valid, 4651 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:15,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3720 Valid, 4651 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:14:15,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7260 states. [2023-12-21 13:14:15,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7260 to 3425. [2023-12-21 13:14:15,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3425 states, 3423 states have (on average 1.4084136722173533) internal successors, (4821), 3424 states have internal predecessors, (4821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:15,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 4821 transitions. [2023-12-21 13:14:15,943 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 4821 transitions. Word has length 57 [2023-12-21 13:14:15,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:15,943 INFO L495 AbstractCegarLoop]: Abstraction has 3425 states and 4821 transitions. [2023-12-21 13:14:15,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:15,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 4821 transitions. [2023-12-21 13:14:15,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-21 13:14:15,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:15,945 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] [2023-12-21 13:14:15,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 13:14:15,945 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-21 13:14:15,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:15,945 INFO L85 PathProgramCache]: Analyzing trace with hash 503772602, now seen corresponding path program 1 times [2023-12-21 13:14:15,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:15,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537895281] [2023-12-21 13:14:15,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:15,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:15,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:16,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:16,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537895281] [2023-12-21 13:14:16,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537895281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:16,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:16,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-21 13:14:16,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133911848] [2023-12-21 13:14:16,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:16,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 13:14:16,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:16,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 13:14:16,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2023-12-21 13:14:16,722 INFO L87 Difference]: Start difference. First operand 3425 states and 4821 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:18,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:18,609 INFO L93 Difference]: Finished difference Result 6558 states and 9269 transitions. [2023-12-21 13:14:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 13:14:18,610 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-12-21 13:14:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:18,620 INFO L225 Difference]: With dead ends: 6558 [2023-12-21 13:14:18,620 INFO L226 Difference]: Without dead ends: 6554 [2023-12-21 13:14:18,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=220, Invalid=902, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 13:14:18,624 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 3107 mSDsluCounter, 6912 mSDsCounter, 0 mSdLazyCounter, 2769 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3107 SdHoareTripleChecker+Valid, 7542 SdHoareTripleChecker+Invalid, 2774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:18,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3107 Valid, 7542 Invalid, 2774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2769 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 13:14:18,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6554 states. [2023-12-21 13:14:18,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6554 to 3433. [2023-12-21 13:14:18,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3431 states have (on average 1.4080443019527835) internal successors, (4831), 3432 states have internal predecessors, (4831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:18,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 4831 transitions. [2023-12-21 13:14:18,670 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 4831 transitions. Word has length 57 [2023-12-21 13:14:18,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:18,670 INFO L495 AbstractCegarLoop]: Abstraction has 3433 states and 4831 transitions. [2023-12-21 13:14:18,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:18,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 4831 transitions. [2023-12-21 13:14:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-21 13:14:18,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:18,672 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] [2023-12-21 13:14:18,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 13:14:18,672 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-21 13:14:18,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:18,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2083415141, now seen corresponding path program 1 times [2023-12-21 13:14:18,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:18,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270349990] [2023-12-21 13:14:18,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:18,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:19,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:19,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270349990] [2023-12-21 13:14:19,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270349990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:19,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:19,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 13:14:19,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285041926] [2023-12-21 13:14:19,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:19,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 13:14:19,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:19,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 13:14:19,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:14:19,396 INFO L87 Difference]: Start difference. First operand 3433 states and 4831 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:21,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:21,394 INFO L93 Difference]: Finished difference Result 6284 states and 8824 transitions. [2023-12-21 13:14:21,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 13:14:21,395 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-12-21 13:14:21,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:21,419 INFO L225 Difference]: With dead ends: 6284 [2023-12-21 13:14:21,419 INFO L226 Difference]: Without dead ends: 6280 [2023-12-21 13:14:21,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=266, Invalid=1066, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 13:14:21,438 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 3962 mSDsluCounter, 7933 mSDsCounter, 0 mSdLazyCounter, 2987 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3962 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:21,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3962 Valid, 8558 Invalid, 2996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2987 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 13:14:21,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6280 states. [2023-12-21 13:14:21,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6280 to 3421. [2023-12-21 13:14:21,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 3420 states have (on average 1.4084795321637427) internal successors, (4817), 3420 states have internal predecessors, (4817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:21,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 4817 transitions. [2023-12-21 13:14:21,504 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 4817 transitions. Word has length 58 [2023-12-21 13:14:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:21,505 INFO L495 AbstractCegarLoop]: Abstraction has 3421 states and 4817 transitions. [2023-12-21 13:14:21,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 4817 transitions. [2023-12-21 13:14:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-21 13:14:21,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:21,506 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] [2023-12-21 13:14:21,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 13:14:21,507 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)] === [2023-12-21 13:14:21,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:21,507 INFO L85 PathProgramCache]: Analyzing trace with hash -757497056, now seen corresponding path program 1 times [2023-12-21 13:14:21,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:21,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863439156] [2023-12-21 13:14:21,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:21,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:21,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863439156] [2023-12-21 13:14:21,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863439156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:21,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:21,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:14:21,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532218464] [2023-12-21 13:14:21,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:21,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:21,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:21,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:21,569 INFO L87 Difference]: Start difference. First operand 3421 states and 4817 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2023-12-21 13:14:21,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:21,640 INFO L93 Difference]: Finished difference Result 10541 states and 15213 transitions. [2023-12-21 13:14:21,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:14:21,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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 [2023-12-21 13:14:21,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:21,650 INFO L225 Difference]: With dead ends: 10541 [2023-12-21 13:14:21,650 INFO L226 Difference]: Without dead ends: 7755 [2023-12-21 13:14:21,656 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 [2023-12-21 13:14:21,656 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 1590 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:21,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 1113 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:21,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7755 states. [2023-12-21 13:14:21,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7755 to 5897. [2023-12-21 13:14:21,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5897 states, 5896 states have (on average 1.4099389416553596) internal successors, (8313), 5896 states have internal predecessors, (8313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:21,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 8313 transitions. [2023-12-21 13:14:21,729 INFO L78 Accepts]: Start accepts. Automaton has 5897 states and 8313 transitions. Word has length 65 [2023-12-21 13:14:21,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:21,730 INFO L495 AbstractCegarLoop]: Abstraction has 5897 states and 8313 transitions. [2023-12-21 13:14:21,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 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) [2023-12-21 13:14:21,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5897 states and 8313 transitions. [2023-12-21 13:14:21,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-21 13:14:21,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:21,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:14:21,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 13:14:21,732 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)] === [2023-12-21 13:14:21,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:21,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1973335583, now seen corresponding path program 1 times [2023-12-21 13:14:21,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:21,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802160006] [2023-12-21 13:14:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:21,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:21,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:21,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:21,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802160006] [2023-12-21 13:14:21,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802160006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:21,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:21,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:14:21,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572495369] [2023-12-21 13:14:21,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:21,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:21,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:21,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:21,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:21,799 INFO L87 Difference]: Start difference. First operand 5897 states and 8313 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:21,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:21,867 INFO L93 Difference]: Finished difference Result 9995 states and 14190 transitions. [2023-12-21 13:14:21,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:14:21,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-12-21 13:14:21,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:21,873 INFO L225 Difference]: With dead ends: 9995 [2023-12-21 13:14:21,873 INFO L226 Difference]: Without dead ends: 4711 [2023-12-21 13:14:21,878 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 [2023-12-21 13:14:21,879 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 996 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:21,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 814 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:21,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4711 states. [2023-12-21 13:14:21,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4711 to 4707. [2023-12-21 13:14:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4707 states, 4706 states have (on average 1.396515087122822) internal successors, (6572), 4706 states have internal predecessors, (6572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:21,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4707 states to 4707 states and 6572 transitions. [2023-12-21 13:14:21,921 INFO L78 Accepts]: Start accepts. Automaton has 4707 states and 6572 transitions. Word has length 66 [2023-12-21 13:14:21,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:21,921 INFO L495 AbstractCegarLoop]: Abstraction has 4707 states and 6572 transitions. [2023-12-21 13:14:21,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:21,922 INFO L276 IsEmpty]: Start isEmpty. Operand 4707 states and 6572 transitions. [2023-12-21 13:14:21,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-21 13:14:21,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:21,923 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] [2023-12-21 13:14:21,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 13:14:21,924 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)] === [2023-12-21 13:14:21,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1468543707, now seen corresponding path program 1 times [2023-12-21 13:14:21,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:21,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121469158] [2023-12-21 13:14:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:21,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:21,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:21,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121469158] [2023-12-21 13:14:21,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121469158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:21,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:21,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450595220] [2023-12-21 13:14:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:21,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:21,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:21,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:21,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:21,988 INFO L87 Difference]: Start difference. First operand 4707 states and 6572 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) [2023-12-21 13:14:22,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:22,046 INFO L93 Difference]: Finished difference Result 12515 states and 17706 transitions. [2023-12-21 13:14:22,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:22,047 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 [2023-12-21 13:14:22,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:22,057 INFO L225 Difference]: With dead ends: 12515 [2023-12-21 13:14:22,058 INFO L226 Difference]: Without dead ends: 8421 [2023-12-21 13:14:22,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:22,065 INFO L413 NwaCegarLoop]: 578 mSDtfsCounter, 280 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 866 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 [2023-12-21 13:14:22,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 866 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:22,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8421 states. [2023-12-21 13:14:22,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8421 to 7907. [2023-12-21 13:14:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7907 states, 7906 states have (on average 1.39817859853276) internal successors, (11054), 7906 states have internal predecessors, (11054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:22,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7907 states to 7907 states and 11054 transitions. [2023-12-21 13:14:22,231 INFO L78 Accepts]: Start accepts. Automaton has 7907 states and 11054 transitions. Word has length 68 [2023-12-21 13:14:22,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:22,231 INFO L495 AbstractCegarLoop]: Abstraction has 7907 states and 11054 transitions. [2023-12-21 13:14:22,231 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) [2023-12-21 13:14:22,231 INFO L276 IsEmpty]: Start isEmpty. Operand 7907 states and 11054 transitions. [2023-12-21 13:14:22,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-21 13:14:22,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:22,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:14:22,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 13:14:22,233 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)] === [2023-12-21 13:14:22,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:22,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2109199581, now seen corresponding path program 1 times [2023-12-21 13:14:22,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:22,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294287737] [2023-12-21 13:14:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:22,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:22,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:22,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:22,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294287737] [2023-12-21 13:14:22,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294287737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:22,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:22,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:22,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912736293] [2023-12-21 13:14:22,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:22,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:22,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:22,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:22,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:22,308 INFO L87 Difference]: Start difference. First operand 7907 states and 11054 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:22,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:22,373 INFO L93 Difference]: Finished difference Result 21737 states and 30538 transitions. [2023-12-21 13:14:22,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:22,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-21 13:14:22,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:22,387 INFO L225 Difference]: With dead ends: 21737 [2023-12-21 13:14:22,388 INFO L226 Difference]: Without dead ends: 14427 [2023-12-21 13:14:22,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:22,398 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 325 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:22,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 826 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14427 states. [2023-12-21 13:14:22,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14427 to 13401. [2023-12-21 13:14:22,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13401 states, 13400 states have (on average 1.3883582089552238) internal successors, (18604), 13400 states have internal predecessors, (18604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:22,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13401 states to 13401 states and 18604 transitions. [2023-12-21 13:14:22,578 INFO L78 Accepts]: Start accepts. Automaton has 13401 states and 18604 transitions. Word has length 71 [2023-12-21 13:14:22,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:22,578 INFO L495 AbstractCegarLoop]: Abstraction has 13401 states and 18604 transitions. [2023-12-21 13:14:22,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:22,578 INFO L276 IsEmpty]: Start isEmpty. Operand 13401 states and 18604 transitions. [2023-12-21 13:14:22,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-21 13:14:22,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:22,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:14:22,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 13:14:22,580 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)] === [2023-12-21 13:14:22,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:22,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1039211364, now seen corresponding path program 1 times [2023-12-21 13:14:22,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:22,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446973174] [2023-12-21 13:14:22,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:22,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:22,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:22,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446973174] [2023-12-21 13:14:22,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446973174] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:22,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:22,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:14:22,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48495328] [2023-12-21 13:14:22,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:22,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:14:22,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:22,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:14:22,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:14:22,699 INFO L87 Difference]: Start difference. First operand 13401 states and 18604 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:22,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:22,841 INFO L93 Difference]: Finished difference Result 28278 states and 38742 transitions. [2023-12-21 13:14:22,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 13:14:22,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-21 13:14:22,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:22,883 INFO L225 Difference]: With dead ends: 28278 [2023-12-21 13:14:22,884 INFO L226 Difference]: Without dead ends: 28276 [2023-12-21 13:14:22,893 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 [2023-12-21 13:14:22,893 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 630 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:22,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2312 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:14:22,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28276 states. [2023-12-21 13:14:23,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28276 to 14505. [2023-12-21 13:14:23,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14505 states, 14504 states have (on average 1.3587975730832873) internal successors, (19708), 14504 states have internal predecessors, (19708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14505 states to 14505 states and 19708 transitions. [2023-12-21 13:14:23,111 INFO L78 Accepts]: Start accepts. Automaton has 14505 states and 19708 transitions. Word has length 71 [2023-12-21 13:14:23,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:23,111 INFO L495 AbstractCegarLoop]: Abstraction has 14505 states and 19708 transitions. [2023-12-21 13:14:23,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:23,112 INFO L276 IsEmpty]: Start isEmpty. Operand 14505 states and 19708 transitions. [2023-12-21 13:14:23,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-21 13:14:23,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:23,113 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] [2023-12-21 13:14:23,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 13:14:23,114 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)] === [2023-12-21 13:14:23,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:23,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2028938757, now seen corresponding path program 1 times [2023-12-21 13:14:23,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:23,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137804308] [2023-12-21 13:14:23,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:23,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:23,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:23,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:23,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137804308] [2023-12-21 13:14:23,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137804308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:23,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:23,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:23,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828137474] [2023-12-21 13:14:23,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:23,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:23,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:23,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:23,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:23,153 INFO L87 Difference]: Start difference. First operand 14505 states and 19708 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2023-12-21 13:14:23,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:23,332 INFO L93 Difference]: Finished difference Result 39232 states and 53329 transitions. [2023-12-21 13:14:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:23,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 [2023-12-21 13:14:23,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:23,369 INFO L225 Difference]: With dead ends: 39232 [2023-12-21 13:14:23,369 INFO L226 Difference]: Without dead ends: 25326 [2023-12-21 13:14:23,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:23,383 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 294 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:23,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 812 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:23,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25326 states. [2023-12-21 13:14:23,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25326 to 25324. [2023-12-21 13:14:23,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25324 states, 25323 states have (on average 1.3397701694112072) internal successors, (33927), 25323 states have internal predecessors, (33927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:23,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25324 states to 25324 states and 33927 transitions. [2023-12-21 13:14:23,667 INFO L78 Accepts]: Start accepts. Automaton has 25324 states and 33927 transitions. Word has length 72 [2023-12-21 13:14:23,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:23,667 INFO L495 AbstractCegarLoop]: Abstraction has 25324 states and 33927 transitions. [2023-12-21 13:14:23,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2023-12-21 13:14:23,668 INFO L276 IsEmpty]: Start isEmpty. Operand 25324 states and 33927 transitions. [2023-12-21 13:14:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-21 13:14:23,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:23,670 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] [2023-12-21 13:14:23,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 13:14:23,670 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)] === [2023-12-21 13:14:23,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:23,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1347861653, now seen corresponding path program 1 times [2023-12-21 13:14:23,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:23,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12456693] [2023-12-21 13:14:23,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:23,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:23,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:23,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12456693] [2023-12-21 13:14:23,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12456693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:23,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:23,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:14:23,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134462449] [2023-12-21 13:14:23,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:23,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:23,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:23,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:23,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:23,740 INFO L87 Difference]: Start difference. First operand 25324 states and 33927 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:23,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:23,875 INFO L93 Difference]: Finished difference Result 43376 states and 58311 transitions. [2023-12-21 13:14:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:14:23,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-21 13:14:23,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:23,923 INFO L225 Difference]: With dead ends: 43376 [2023-12-21 13:14:23,924 INFO L226 Difference]: Without dead ends: 35982 [2023-12-21 13:14:23,941 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 [2023-12-21 13:14:23,941 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 1035 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:23,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 1319 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35982 states. [2023-12-21 13:14:24,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35982 to 31336. [2023-12-21 13:14:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31336 states, 31335 states have (on average 1.3353438646880484) internal successors, (41843), 31335 states have internal predecessors, (41843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31336 states to 31336 states and 41843 transitions. [2023-12-21 13:14:24,422 INFO L78 Accepts]: Start accepts. Automaton has 31336 states and 41843 transitions. Word has length 76 [2023-12-21 13:14:24,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:24,422 INFO L495 AbstractCegarLoop]: Abstraction has 31336 states and 41843 transitions. [2023-12-21 13:14:24,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:24,423 INFO L276 IsEmpty]: Start isEmpty. Operand 31336 states and 41843 transitions. [2023-12-21 13:14:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 13:14:24,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:24,425 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] [2023-12-21 13:14:24,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-21 13:14:24,425 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)] === [2023-12-21 13:14:24,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:24,425 INFO L85 PathProgramCache]: Analyzing trace with hash 196878916, now seen corresponding path program 1 times [2023-12-21 13:14:24,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:24,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167343878] [2023-12-21 13:14:24,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:24,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:24,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:24,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167343878] [2023-12-21 13:14:24,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167343878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:24,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:24,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:14:24,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300776019] [2023-12-21 13:14:24,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:24,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:24,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:24,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:24,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:24,500 INFO L87 Difference]: Start difference. First operand 31336 states and 41843 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:24,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:24,641 INFO L93 Difference]: Finished difference Result 47112 states and 63151 transitions. [2023-12-21 13:14:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:14:24,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-21 13:14:24,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:24,874 INFO L225 Difference]: With dead ends: 47112 [2023-12-21 13:14:24,875 INFO L226 Difference]: Without dead ends: 39718 [2023-12-21 13:14:24,896 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 [2023-12-21 13:14:24,897 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 976 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:24,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 1371 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:24,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39718 states. [2023-12-21 13:14:25,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39718 to 37344. [2023-12-21 13:14:25,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37344 states, 37343 states have (on average 1.332378223495702) internal successors, (49755), 37343 states have internal predecessors, (49755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:25,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37344 states to 37344 states and 49755 transitions. [2023-12-21 13:14:25,573 INFO L78 Accepts]: Start accepts. Automaton has 37344 states and 49755 transitions. Word has length 77 [2023-12-21 13:14:25,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:25,573 INFO L495 AbstractCegarLoop]: Abstraction has 37344 states and 49755 transitions. [2023-12-21 13:14:25,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:25,573 INFO L276 IsEmpty]: Start isEmpty. Operand 37344 states and 49755 transitions. [2023-12-21 13:14:25,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-21 13:14:25,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:25,576 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] [2023-12-21 13:14:25,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-21 13:14:25,576 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)] === [2023-12-21 13:14:25,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:25,577 INFO L85 PathProgramCache]: Analyzing trace with hash -231124447, now seen corresponding path program 1 times [2023-12-21 13:14:25,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:25,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973121788] [2023-12-21 13:14:25,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:25,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:25,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:25,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973121788] [2023-12-21 13:14:25,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973121788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:25,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:25,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:14:25,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519873535] [2023-12-21 13:14:25,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:25,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:25,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:25,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:25,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:25,665 INFO L87 Difference]: Start difference. First operand 37344 states and 49755 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:25,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:25,902 INFO L93 Difference]: Finished difference Result 55336 states and 74015 transitions. [2023-12-21 13:14:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:14:25,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-21 13:14:25,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:25,964 INFO L225 Difference]: With dead ends: 55336 [2023-12-21 13:14:25,964 INFO L226 Difference]: Without dead ends: 46246 [2023-12-21 13:14:25,986 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 [2023-12-21 13:14:25,986 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 1059 mSDsluCounter, 714 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:25,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 1307 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:14:26,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46246 states. [2023-12-21 13:14:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46246 to 43872. [2023-12-21 13:14:26,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43872 states, 43871 states have (on average 1.3288732875931708) internal successors, (58299), 43871 states have internal predecessors, (58299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43872 states to 43872 states and 58299 transitions. [2023-12-21 13:14:26,752 INFO L78 Accepts]: Start accepts. Automaton has 43872 states and 58299 transitions. Word has length 77 [2023-12-21 13:14:26,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:26,753 INFO L495 AbstractCegarLoop]: Abstraction has 43872 states and 58299 transitions. [2023-12-21 13:14:26,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:26,753 INFO L276 IsEmpty]: Start isEmpty. Operand 43872 states and 58299 transitions. [2023-12-21 13:14:26,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:14:26,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:26,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:14:26,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-21 13:14:26,757 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)] === [2023-12-21 13:14:26,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:26,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2004849382, now seen corresponding path program 1 times [2023-12-21 13:14:26,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:26,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604812372] [2023-12-21 13:14:26,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:26,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:26,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:26,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:26,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604812372] [2023-12-21 13:14:26,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604812372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:26,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:26,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:14:26,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075547730] [2023-12-21 13:14:26,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:26,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 13:14:26,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:26,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 13:14:26,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-21 13:14:26,936 INFO L87 Difference]: Start difference. First operand 43872 states and 58299 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:27,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:27,148 INFO L93 Difference]: Finished difference Result 67494 states and 89934 transitions. [2023-12-21 13:14:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 13:14:27,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-21 13:14:27,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:27,218 INFO L225 Difference]: With dead ends: 67494 [2023-12-21 13:14:27,219 INFO L226 Difference]: Without dead ends: 54092 [2023-12-21 13:14:27,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-21 13:14:27,326 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 1143 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:27,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 1675 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:14:27,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54092 states. [2023-12-21 13:14:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54092 to 50064. [2023-12-21 13:14:27,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50064 states, 50063 states have (on average 1.3297445219024029) internal successors, (66571), 50063 states have internal predecessors, (66571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50064 states to 50064 states and 66571 transitions. [2023-12-21 13:14:28,024 INFO L78 Accepts]: Start accepts. Automaton has 50064 states and 66571 transitions. Word has length 84 [2023-12-21 13:14:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:28,024 INFO L495 AbstractCegarLoop]: Abstraction has 50064 states and 66571 transitions. [2023-12-21 13:14:28,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 50064 states and 66571 transitions. [2023-12-21 13:14:28,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-21 13:14:28,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:28,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:14:28,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-21 13:14:28,029 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)] === [2023-12-21 13:14:28,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:28,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1244346189, now seen corresponding path program 1 times [2023-12-21 13:14:28,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:28,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320938905] [2023-12-21 13:14:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:28,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:28,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:28,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320938905] [2023-12-21 13:14:28,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320938905] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:28,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:28,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:14:28,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015766078] [2023-12-21 13:14:28,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:28,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:28,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:28,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:28,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:28,128 INFO L87 Difference]: Start difference. First operand 50064 states and 66571 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:28,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:28,450 INFO L93 Difference]: Finished difference Result 80278 states and 106782 transitions. [2023-12-21 13:14:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:14:28,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2023-12-21 13:14:28,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:28,519 INFO L225 Difference]: With dead ends: 80278 [2023-12-21 13:14:28,519 INFO L226 Difference]: Without dead ends: 55764 [2023-12-21 13:14:28,546 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 [2023-12-21 13:14:28,546 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 1095 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:28,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 1243 Invalid, 71 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:28,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55764 states. [2023-12-21 13:14:29,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55764 to 49680. [2023-12-21 13:14:29,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49680 states, 49679 states have (on average 1.3271402403430022) internal successors, (65931), 49679 states have internal predecessors, (65931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49680 states to 49680 states and 65931 transitions. [2023-12-21 13:14:29,371 INFO L78 Accepts]: Start accepts. Automaton has 49680 states and 65931 transitions. Word has length 84 [2023-12-21 13:14:29,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:29,371 INFO L495 AbstractCegarLoop]: Abstraction has 49680 states and 65931 transitions. [2023-12-21 13:14:29,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:29,371 INFO L276 IsEmpty]: Start isEmpty. Operand 49680 states and 65931 transitions. [2023-12-21 13:14:29,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-21 13:14:29,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:29,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:14:29,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-21 13:14:29,390 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)] === [2023-12-21 13:14:29,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:29,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1966767005, now seen corresponding path program 1 times [2023-12-21 13:14:29,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:29,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842231452] [2023-12-21 13:14:29,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:29,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:29,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:29,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842231452] [2023-12-21 13:14:29,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842231452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:29,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:29,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:14:29,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313347417] [2023-12-21 13:14:29,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:29,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:14:29,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:29,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:14:29,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:14:29,482 INFO L87 Difference]: Start difference. First operand 49680 states and 65931 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:30,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:30,179 INFO L93 Difference]: Finished difference Result 64842 states and 85959 transitions. [2023-12-21 13:14:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:14:30,180 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-21 13:14:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:30,265 INFO L225 Difference]: With dead ends: 64842 [2023-12-21 13:14:30,266 INFO L226 Difference]: Without dead ends: 62586 [2023-12-21 13:14:30,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-21 13:14:30,287 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 2270 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:30,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2270 Valid, 755 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 639 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:14:30,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62586 states. [2023-12-21 13:14:30,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62586 to 49673. [2023-12-21 13:14:30,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49673 states, 49672 states have (on average 1.3271058141407635) internal successors, (65920), 49672 states have internal predecessors, (65920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:31,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49673 states to 49673 states and 65920 transitions. [2023-12-21 13:14:31,067 INFO L78 Accepts]: Start accepts. Automaton has 49673 states and 65920 transitions. Word has length 85 [2023-12-21 13:14:31,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:31,067 INFO L495 AbstractCegarLoop]: Abstraction has 49673 states and 65920 transitions. [2023-12-21 13:14:31,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:31,067 INFO L276 IsEmpty]: Start isEmpty. Operand 49673 states and 65920 transitions. [2023-12-21 13:14:31,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 13:14:31,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:31,075 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] [2023-12-21 13:14:31,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-21 13:14:31,077 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)] === [2023-12-21 13:14:31,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:31,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1926310259, now seen corresponding path program 1 times [2023-12-21 13:14:31,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:31,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77849399] [2023-12-21 13:14:31,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:31,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:31,251 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:31,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:31,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77849399] [2023-12-21 13:14:31,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77849399] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:14:31,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856592854] [2023-12-21 13:14:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:31,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:14:31,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:14:31,254 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:14:31,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 13:14:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:31,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 13:14:31,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:14:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:31,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:14:31,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856592854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:31,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:14:31,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 12 [2023-12-21 13:14:31,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569893826] [2023-12-21 13:14:31,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:31,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 13:14:31,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:31,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 13:14:31,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 13:14:31,869 INFO L87 Difference]: Start difference. First operand 49673 states and 65920 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2023-12-21 13:14:33,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:33,239 INFO L93 Difference]: Finished difference Result 122416 states and 160352 transitions. [2023-12-21 13:14:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 13:14:33,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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 [2023-12-21 13:14:33,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:33,383 INFO L225 Difference]: With dead ends: 122416 [2023-12-21 13:14:33,383 INFO L226 Difference]: Without dead ends: 104302 [2023-12-21 13:14:33,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2023-12-21 13:14:33,424 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 2500 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 1534 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 1541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:33,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 1826 Invalid, 1541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1534 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-21 13:14:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104302 states. [2023-12-21 13:14:34,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104302 to 71010. [2023-12-21 13:14:34,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71010 states, 71009 states have (on average 1.3205509160810602) internal successors, (93771), 71009 states have internal predecessors, (93771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:34,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71010 states to 71010 states and 93771 transitions. [2023-12-21 13:14:34,691 INFO L78 Accepts]: Start accepts. Automaton has 71010 states and 93771 transitions. Word has length 92 [2023-12-21 13:14:34,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:34,691 INFO L495 AbstractCegarLoop]: Abstraction has 71010 states and 93771 transitions. [2023-12-21 13:14:34,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 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) [2023-12-21 13:14:34,691 INFO L276 IsEmpty]: Start isEmpty. Operand 71010 states and 93771 transitions. [2023-12-21 13:14:34,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-21 13:14:34,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:34,702 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] [2023-12-21 13:14:34,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 13:14:34,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-21 13:14:34,908 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)] === [2023-12-21 13:14:34,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:34,909 INFO L85 PathProgramCache]: Analyzing trace with hash -406242549, now seen corresponding path program 1 times [2023-12-21 13:14:34,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:34,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815981934] [2023-12-21 13:14:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:34,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-21 13:14:35,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:35,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815981934] [2023-12-21 13:14:35,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815981934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:35,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:35,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:14:35,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296168954] [2023-12-21 13:14:35,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:35,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:14:35,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:35,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:14:35,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:14:35,123 INFO L87 Difference]: Start difference. First operand 71010 states and 93771 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:36,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:36,256 INFO L93 Difference]: Finished difference Result 170680 states and 224297 transitions. [2023-12-21 13:14:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:14:36,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-21 13:14:36,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:36,490 INFO L225 Difference]: With dead ends: 170680 [2023-12-21 13:14:36,490 INFO L226 Difference]: Without dead ends: 144348 [2023-12-21 13:14:36,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:14:36,557 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 2262 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2262 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:36,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2262 Valid, 1516 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 13:14:36,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144348 states. [2023-12-21 13:14:38,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144348 to 70992. [2023-12-21 13:14:38,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70992 states, 70991 states have (on average 1.3206040202279161) internal successors, (93751), 70991 states have internal predecessors, (93751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:38,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70992 states to 70992 states and 93751 transitions. [2023-12-21 13:14:38,344 INFO L78 Accepts]: Start accepts. Automaton has 70992 states and 93751 transitions. Word has length 92 [2023-12-21 13:14:38,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:38,345 INFO L495 AbstractCegarLoop]: Abstraction has 70992 states and 93751 transitions. [2023-12-21 13:14:38,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:38,345 INFO L276 IsEmpty]: Start isEmpty. Operand 70992 states and 93751 transitions. [2023-12-21 13:14:38,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-21 13:14:38,358 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:38,358 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:14:38,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-21 13:14:38,358 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)] === [2023-12-21 13:14:38,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:38,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1250731369, now seen corresponding path program 1 times [2023-12-21 13:14:38,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:38,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942454627] [2023-12-21 13:14:38,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:38,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:38,548 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:38,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:38,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942454627] [2023-12-21 13:14:38,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942454627] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:14:38,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934552216] [2023-12-21 13:14:38,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:38,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:14:38,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:14:38,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:14:38,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 13:14:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:38,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 13:14:38,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:14:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:39,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:14:39,771 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:39,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934552216] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:14:39,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:14:39,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 17 [2023-12-21 13:14:39,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106515230] [2023-12-21 13:14:39,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:14:39,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-21 13:14:39,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:39,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-21 13:14:39,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-12-21 13:14:39,773 INFO L87 Difference]: Start difference. First operand 70992 states and 93751 transitions. Second operand has 17 states, 17 states have (on average 15.294117647058824) internal successors, (260), 17 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) [2023-12-21 13:14:42,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:42,660 INFO L93 Difference]: Finished difference Result 289477 states and 376951 transitions. [2023-12-21 13:14:42,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-21 13:14:42,660 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 15.294117647058824) internal successors, (260), 17 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 93 [2023-12-21 13:14:42,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:42,968 INFO L225 Difference]: With dead ends: 289477 [2023-12-21 13:14:42,968 INFO L226 Difference]: Without dead ends: 219155 [2023-12-21 13:14:43,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 970 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=799, Invalid=2861, Unknown=0, NotChecked=0, Total=3660 [2023-12-21 13:14:43,016 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 4376 mSDsluCounter, 3138 mSDsCounter, 0 mSdLazyCounter, 3733 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4376 SdHoareTripleChecker+Valid, 3594 SdHoareTripleChecker+Invalid, 3783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 3733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:43,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4376 Valid, 3594 Invalid, 3783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 3733 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 13:14:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219155 states. [2023-12-21 13:14:45,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219155 to 93419. [2023-12-21 13:14:45,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93419 states, 93418 states have (on average 1.3165771050547004) internal successors, (122992), 93418 states have internal predecessors, (122992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93419 states to 93419 states and 122992 transitions. [2023-12-21 13:14:45,329 INFO L78 Accepts]: Start accepts. Automaton has 93419 states and 122992 transitions. Word has length 93 [2023-12-21 13:14:45,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:45,330 INFO L495 AbstractCegarLoop]: Abstraction has 93419 states and 122992 transitions. [2023-12-21 13:14:45,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 15.294117647058824) internal successors, (260), 17 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) [2023-12-21 13:14:45,330 INFO L276 IsEmpty]: Start isEmpty. Operand 93419 states and 122992 transitions. [2023-12-21 13:14:45,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 13:14:45,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:45,344 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, 1] [2023-12-21 13:14:45,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 13:14:45,551 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,SelfDestructingSolverStorable30 [2023-12-21 13:14:45,552 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)] === [2023-12-21 13:14:45,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:45,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1174132076, now seen corresponding path program 1 times [2023-12-21 13:14:45,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:45,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368633435] [2023-12-21 13:14:45,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:45,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:45,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:45,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368633435] [2023-12-21 13:14:45,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368633435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:45,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:45,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:45,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180465812] [2023-12-21 13:14:45,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:45,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:45,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:45,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:45,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:45,650 INFO L87 Difference]: Start difference. First operand 93419 states and 122992 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) [2023-12-21 13:14:46,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:46,337 INFO L93 Difference]: Finished difference Result 137587 states and 180714 transitions. [2023-12-21 13:14:46,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:46,337 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 [2023-12-21 13:14:46,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:46,496 INFO L225 Difference]: With dead ends: 137587 [2023-12-21 13:14:46,497 INFO L226 Difference]: Without dead ends: 93421 [2023-12-21 13:14:46,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:46,550 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 178 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 914 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 [2023-12-21 13:14:46,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 914 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:46,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93421 states. [2023-12-21 13:14:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93421 to 93147. [2023-12-21 13:14:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93147 states, 93146 states have (on average 1.3044467824705301) internal successors, (121504), 93146 states have internal predecessors, (121504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93147 states to 93147 states and 121504 transitions. [2023-12-21 13:14:47,880 INFO L78 Accepts]: Start accepts. Automaton has 93147 states and 121504 transitions. Word has length 96 [2023-12-21 13:14:47,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:47,881 INFO L495 AbstractCegarLoop]: Abstraction has 93147 states and 121504 transitions. [2023-12-21 13:14:47,881 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) [2023-12-21 13:14:47,881 INFO L276 IsEmpty]: Start isEmpty. Operand 93147 states and 121504 transitions. [2023-12-21 13:14:47,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 13:14:47,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:47,891 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:14:47,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-21 13:14:47,891 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)] === [2023-12-21 13:14:47,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:47,891 INFO L85 PathProgramCache]: Analyzing trace with hash -2004878759, now seen corresponding path program 1 times [2023-12-21 13:14:47,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:47,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420235164] [2023-12-21 13:14:47,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:47,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:47,936 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-21 13:14:47,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:47,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420235164] [2023-12-21 13:14:47,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420235164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:47,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:47,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:47,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779822430] [2023-12-21 13:14:47,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:47,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:47,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:47,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:47,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:47,937 INFO L87 Difference]: Start difference. First operand 93147 states and 121504 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) [2023-12-21 13:14:48,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:48,435 INFO L93 Difference]: Finished difference Result 122358 states and 159493 transitions. [2023-12-21 13:14:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:48,435 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 97 [2023-12-21 13:14:48,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:48,501 INFO L225 Difference]: With dead ends: 122358 [2023-12-21 13:14:48,502 INFO L226 Difference]: Without dead ends: 60740 [2023-12-21 13:14:48,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:48,529 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 163 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:48,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 910 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60740 states. [2023-12-21 13:14:49,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60740 to 60546. [2023-12-21 13:14:49,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60546 states, 60545 states have (on average 1.289206375423239) internal successors, (78055), 60545 states have internal predecessors, (78055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:49,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60546 states to 60546 states and 78055 transitions. [2023-12-21 13:14:49,276 INFO L78 Accepts]: Start accepts. Automaton has 60546 states and 78055 transitions. Word has length 97 [2023-12-21 13:14:49,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:49,276 INFO L495 AbstractCegarLoop]: Abstraction has 60546 states and 78055 transitions. [2023-12-21 13:14:49,276 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) [2023-12-21 13:14:49,276 INFO L276 IsEmpty]: Start isEmpty. Operand 60546 states and 78055 transitions. [2023-12-21 13:14:49,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-21 13:14:49,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:49,285 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, 1, 1] [2023-12-21 13:14:49,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-21 13:14:49,285 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)] === [2023-12-21 13:14:49,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:49,286 INFO L85 PathProgramCache]: Analyzing trace with hash 111664339, now seen corresponding path program 1 times [2023-12-21 13:14:49,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:49,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533285864] [2023-12-21 13:14:49,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:49,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:49,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:49,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533285864] [2023-12-21 13:14:49,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533285864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:49,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:49,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:14:49,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345195676] [2023-12-21 13:14:49,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:49,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:49,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:49,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:49,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:49,425 INFO L87 Difference]: Start difference. First operand 60546 states and 78055 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 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) [2023-12-21 13:14:50,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:50,516 INFO L93 Difference]: Finished difference Result 214203 states and 275535 transitions. [2023-12-21 13:14:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 13:14:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 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 [2023-12-21 13:14:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:50,699 INFO L225 Difference]: With dead ends: 214203 [2023-12-21 13:14:50,699 INFO L226 Difference]: Without dead ends: 154698 [2023-12-21 13:14:50,758 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 [2023-12-21 13:14:50,759 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 1244 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:50,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 868 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:14:50,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154698 states. [2023-12-21 13:14:52,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154698 to 84411. [2023-12-21 13:14:52,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84411 states, 84410 states have (on average 1.2632152588555858) internal successors, (106628), 84410 states have internal predecessors, (106628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:52,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84411 states to 84411 states and 106628 transitions. [2023-12-21 13:14:52,613 INFO L78 Accepts]: Start accepts. Automaton has 84411 states and 106628 transitions. Word has length 97 [2023-12-21 13:14:52,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:52,613 INFO L495 AbstractCegarLoop]: Abstraction has 84411 states and 106628 transitions. [2023-12-21 13:14:52,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 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) [2023-12-21 13:14:52,613 INFO L276 IsEmpty]: Start isEmpty. Operand 84411 states and 106628 transitions. [2023-12-21 13:14:52,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-21 13:14:52,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:52,622 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-21 13:14:52,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-21 13:14:52,622 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)] === [2023-12-21 13:14:52,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:52,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1470603538, now seen corresponding path program 1 times [2023-12-21 13:14:52,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:52,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170183449] [2023-12-21 13:14:52,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:52,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:52,682 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:52,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:52,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170183449] [2023-12-21 13:14:52,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170183449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:52,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:52,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 13:14:52,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126416691] [2023-12-21 13:14:52,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:52,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 13:14:52,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:52,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 13:14:52,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 13:14:52,683 INFO L87 Difference]: Start difference. First operand 84411 states and 106628 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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) [2023-12-21 13:14:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:53,628 INFO L93 Difference]: Finished difference Result 186314 states and 235262 transitions. [2023-12-21 13:14:53,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 13:14:53,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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 98 [2023-12-21 13:14:53,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:53,793 INFO L225 Difference]: With dead ends: 186314 [2023-12-21 13:14:53,793 INFO L226 Difference]: Without dead ends: 102772 [2023-12-21 13:14:53,837 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 [2023-12-21 13:14:53,838 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 1123 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:53,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 765 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:14:53,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102772 states. [2023-12-21 13:14:54,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102772 to 77278. [2023-12-21 13:14:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77278 states, 77277 states have (on average 1.2370045421017897) internal successors, (95592), 77277 states have internal predecessors, (95592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:55,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77278 states to 77278 states and 95592 transitions. [2023-12-21 13:14:55,017 INFO L78 Accepts]: Start accepts. Automaton has 77278 states and 95592 transitions. Word has length 98 [2023-12-21 13:14:55,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:55,017 INFO L495 AbstractCegarLoop]: Abstraction has 77278 states and 95592 transitions. [2023-12-21 13:14:55,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 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) [2023-12-21 13:14:55,017 INFO L276 IsEmpty]: Start isEmpty. Operand 77278 states and 95592 transitions. [2023-12-21 13:14:55,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-21 13:14:55,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:55,027 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2023-12-21 13:14:55,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-21 13:14:55,028 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)] === [2023-12-21 13:14:55,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:55,030 INFO L85 PathProgramCache]: Analyzing trace with hash 499642218, now seen corresponding path program 1 times [2023-12-21 13:14:55,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:55,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814796953] [2023-12-21 13:14:55,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:55,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-21 13:14:55,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:55,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814796953] [2023-12-21 13:14:55,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814796953] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:55,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:55,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:14:55,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587164042] [2023-12-21 13:14:55,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:55,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:14:55,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:55,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:14:55,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:55,158 INFO L87 Difference]: Start difference. First operand 77278 states and 95592 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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) [2023-12-21 13:14:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:55,456 INFO L93 Difference]: Finished difference Result 109294 states and 135078 transitions. [2023-12-21 13:14:55,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:14:55,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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 100 [2023-12-21 13:14:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:55,525 INFO L225 Difference]: With dead ends: 109294 [2023-12-21 13:14:55,525 INFO L226 Difference]: Without dead ends: 58147 [2023-12-21 13:14:55,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:14:55,560 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 138 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 932 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 [2023-12-21 13:14:55,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 932 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:14:55,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58147 states. [2023-12-21 13:14:56,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58147 to 56465. [2023-12-21 13:14:56,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56465 states, 56464 states have (on average 1.2264097478039104) internal successors, (69248), 56464 states have internal predecessors, (69248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:56,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56465 states to 56465 states and 69248 transitions. [2023-12-21 13:14:56,303 INFO L78 Accepts]: Start accepts. Automaton has 56465 states and 69248 transitions. Word has length 100 [2023-12-21 13:14:56,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:56,303 INFO L495 AbstractCegarLoop]: Abstraction has 56465 states and 69248 transitions. [2023-12-21 13:14:56,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 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) [2023-12-21 13:14:56,304 INFO L276 IsEmpty]: Start isEmpty. Operand 56465 states and 69248 transitions. [2023-12-21 13:14:56,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-21 13:14:56,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:56,311 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-12-21 13:14:56,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-21 13:14:56,311 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)] === [2023-12-21 13:14:56,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:56,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1545365470, now seen corresponding path program 1 times [2023-12-21 13:14:56,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:56,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241786145] [2023-12-21 13:14:56,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:56,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:56,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:56,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:56,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241786145] [2023-12-21 13:14:56,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241786145] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:14:56,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401261460] [2023-12-21 13:14:56,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:56,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:14:56,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:14:56,386 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) [2023-12-21 13:14:56,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 13:14:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:56,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 13:14:56,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:14:57,201 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:57,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:14:57,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:14:57,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401261460] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:14:57,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:14:57,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-21 13:14:57,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295619787] [2023-12-21 13:14:57,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:14:57,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:14:57,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:57,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:14:57,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:14:57,313 INFO L87 Difference]: Start difference. First operand 56465 states and 69248 transitions. Second operand has 14 states, 14 states have (on average 20.071428571428573) internal successors, (281), 14 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:14:58,058 INFO L93 Difference]: Finished difference Result 145392 states and 177429 transitions. [2023-12-21 13:14:58,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:14:58,059 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.071428571428573) internal successors, (281), 14 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 [2023-12-21 13:14:58,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:14:58,157 INFO L225 Difference]: With dead ends: 145392 [2023-12-21 13:14:58,157 INFO L226 Difference]: Without dead ends: 89715 [2023-12-21 13:14:58,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-21 13:14:58,201 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 4688 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4688 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:14:58,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4688 Valid, 1429 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:14:58,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89715 states. [2023-12-21 13:14:59,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89715 to 60407. [2023-12-21 13:14:59,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60407 states, 60406 states have (on average 1.2090189716253352) internal successors, (73032), 60406 states have internal predecessors, (73032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:59,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60407 states to 60407 states and 73032 transitions. [2023-12-21 13:14:59,296 INFO L78 Accepts]: Start accepts. Automaton has 60407 states and 73032 transitions. Word has length 102 [2023-12-21 13:14:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:14:59,296 INFO L495 AbstractCegarLoop]: Abstraction has 60407 states and 73032 transitions. [2023-12-21 13:14:59,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.071428571428573) internal successors, (281), 14 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:14:59,297 INFO L276 IsEmpty]: Start isEmpty. Operand 60407 states and 73032 transitions. [2023-12-21 13:14:59,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 13:14:59,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:14:59,306 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:14:59,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 13:14:59,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:14:59,512 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)] === [2023-12-21 13:14:59,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:14:59,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1076353422, now seen corresponding path program 1 times [2023-12-21 13:14:59,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:14:59,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350639216] [2023-12-21 13:14:59,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:14:59,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:14:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:14:59,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-21 13:14:59,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:14:59,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350639216] [2023-12-21 13:14:59,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350639216] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:14:59,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:14:59,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:14:59,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671114634] [2023-12-21 13:14:59,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:14:59,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:14:59,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:14:59,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:14:59,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:14:59,562 INFO L87 Difference]: Start difference. First operand 60407 states and 73032 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 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) [2023-12-21 13:15:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:00,337 INFO L93 Difference]: Finished difference Result 161675 states and 196692 transitions. [2023-12-21 13:15:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:15:00,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 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 103 [2023-12-21 13:15:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:00,457 INFO L225 Difference]: With dead ends: 161675 [2023-12-21 13:15:00,457 INFO L226 Difference]: Without dead ends: 109466 [2023-12-21 13:15:00,472 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 [2023-12-21 13:15:00,474 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 484 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:15:00,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1017 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:15:00,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109466 states. [2023-12-21 13:15:01,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109466 to 66337. [2023-12-21 13:15:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66337 states, 66336 states have (on average 1.210850820067535) internal successors, (80323), 66336 states have internal predecessors, (80323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66337 states to 66337 states and 80323 transitions. [2023-12-21 13:15:01,312 INFO L78 Accepts]: Start accepts. Automaton has 66337 states and 80323 transitions. Word has length 103 [2023-12-21 13:15:01,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:01,312 INFO L495 AbstractCegarLoop]: Abstraction has 66337 states and 80323 transitions. [2023-12-21 13:15:01,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 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) [2023-12-21 13:15:01,312 INFO L276 IsEmpty]: Start isEmpty. Operand 66337 states and 80323 transitions. [2023-12-21 13:15:01,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:15:01,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:01,320 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:01,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-21 13:15:01,321 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)] === [2023-12-21 13:15:01,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:01,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1944217555, now seen corresponding path program 1 times [2023-12-21 13:15:01,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:01,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268075841] [2023-12-21 13:15:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:01,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:01,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-21 13:15:01,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:01,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268075841] [2023-12-21 13:15:01,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268075841] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:15:01,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:15:01,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:15:01,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898786788] [2023-12-21 13:15:01,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:15:01,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:15:01,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:01,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:15:01,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:15:01,370 INFO L87 Difference]: Start difference. First operand 66337 states and 80323 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) [2023-12-21 13:15:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:02,079 INFO L93 Difference]: Finished difference Result 114013 states and 137482 transitions. [2023-12-21 13:15:02,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:15:02,079 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 [2023-12-21 13:15:02,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:02,204 INFO L225 Difference]: With dead ends: 114013 [2023-12-21 13:15:02,204 INFO L226 Difference]: Without dead ends: 98724 [2023-12-21 13:15:02,235 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 [2023-12-21 13:15:02,236 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 466 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:15:02,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 977 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:15:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98724 states. [2023-12-21 13:15:03,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98724 to 74140. [2023-12-21 13:15:03,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74140 states, 74139 states have (on average 1.2109955623895656) internal successors, (89782), 74139 states have internal predecessors, (89782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74140 states to 74140 states and 89782 transitions. [2023-12-21 13:15:03,452 INFO L78 Accepts]: Start accepts. Automaton has 74140 states and 89782 transitions. Word has length 104 [2023-12-21 13:15:03,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:03,453 INFO L495 AbstractCegarLoop]: Abstraction has 74140 states and 89782 transitions. [2023-12-21 13:15:03,453 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) [2023-12-21 13:15:03,453 INFO L276 IsEmpty]: Start isEmpty. Operand 74140 states and 89782 transitions. [2023-12-21 13:15:03,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:15:03,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:03,460 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:03,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-21 13:15:03,460 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)] === [2023-12-21 13:15:03,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:03,461 INFO L85 PathProgramCache]: Analyzing trace with hash -774191982, now seen corresponding path program 1 times [2023-12-21 13:15:03,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:03,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252243005] [2023-12-21 13:15:03,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:03,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:03,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:03,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252243005] [2023-12-21 13:15:03,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252243005] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:15:03,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180909713] [2023-12-21 13:15:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:03,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:15:03,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:15:03,775 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) [2023-12-21 13:15:03,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 13:15:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:04,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 13:15:04,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:15:05,117 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:05,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:15:05,627 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:05,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180909713] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:15:05,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:15:05,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 23 [2023-12-21 13:15:05,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475614292] [2023-12-21 13:15:05,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:15:05,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-21 13:15:05,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:05,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-21 13:15:05,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:15:05,630 INFO L87 Difference]: Start difference. First operand 74140 states and 89782 transitions. Second operand has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:10,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:10,092 INFO L93 Difference]: Finished difference Result 256301 states and 305441 transitions. [2023-12-21 13:15:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-21 13:15:10,093 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 0 states have call successors, (0), 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 [2023-12-21 13:15:10,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:10,366 INFO L225 Difference]: With dead ends: 256301 [2023-12-21 13:15:10,367 INFO L226 Difference]: Without dead ends: 212050 [2023-12-21 13:15:10,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1303 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1262, Invalid=3994, Unknown=0, NotChecked=0, Total=5256 [2023-12-21 13:15:10,431 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 3940 mSDsluCounter, 5214 mSDsCounter, 0 mSdLazyCounter, 4706 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3940 SdHoareTripleChecker+Valid, 5759 SdHoareTripleChecker+Invalid, 4740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 4706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:15:10,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3940 Valid, 5759 Invalid, 4740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 4706 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 13:15:10,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212050 states. [2023-12-21 13:15:12,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212050 to 118359. [2023-12-21 13:15:12,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118359 states, 118358 states have (on average 1.208528363101776) internal successors, (143039), 118358 states have internal predecessors, (143039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118359 states to 118359 states and 143039 transitions. [2023-12-21 13:15:12,363 INFO L78 Accepts]: Start accepts. Automaton has 118359 states and 143039 transitions. Word has length 104 [2023-12-21 13:15:12,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:12,363 INFO L495 AbstractCegarLoop]: Abstraction has 118359 states and 143039 transitions. [2023-12-21 13:15:12,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:12,364 INFO L276 IsEmpty]: Start isEmpty. Operand 118359 states and 143039 transitions. [2023-12-21 13:15:12,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:15:12,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:12,375 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:12,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 13:15:12,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-21 13:15:12,581 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)] === [2023-12-21 13:15:12,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:12,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1553913624, now seen corresponding path program 1 times [2023-12-21 13:15:12,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:12,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452375779] [2023-12-21 13:15:12,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:12,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:12,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:12,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:12,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452375779] [2023-12-21 13:15:12,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452375779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:15:12,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:15:12,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:15:12,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097397609] [2023-12-21 13:15:12,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:15:12,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:15:12,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:12,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:15:12,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:15:12,637 INFO L87 Difference]: Start difference. First operand 118359 states and 143039 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 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) [2023-12-21 13:15:13,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:13,240 INFO L93 Difference]: Finished difference Result 185344 states and 223870 transitions. [2023-12-21 13:15:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:15:13,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 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 [2023-12-21 13:15:13,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:13,410 INFO L225 Difference]: With dead ends: 185344 [2023-12-21 13:15:13,410 INFO L226 Difference]: Without dead ends: 149046 [2023-12-21 13:15:13,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:15:13,460 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 155 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:15:13,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 957 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 13:15:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149046 states. [2023-12-21 13:15:14,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149046 to 119942. [2023-12-21 13:15:14,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119942 states, 119941 states have (on average 1.2014073586179872) internal successors, (144098), 119941 states have internal predecessors, (144098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119942 states to 119942 states and 144098 transitions. [2023-12-21 13:15:15,235 INFO L78 Accepts]: Start accepts. Automaton has 119942 states and 144098 transitions. Word has length 104 [2023-12-21 13:15:15,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:15,236 INFO L495 AbstractCegarLoop]: Abstraction has 119942 states and 144098 transitions. [2023-12-21 13:15:15,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 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) [2023-12-21 13:15:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 119942 states and 144098 transitions. [2023-12-21 13:15:15,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 13:15:15,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:15,246 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:15,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-21 13:15:15,246 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)] === [2023-12-21 13:15:15,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1245203663, now seen corresponding path program 1 times [2023-12-21 13:15:15,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:15,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449017505] [2023-12-21 13:15:15,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:15,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:15,401 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:15:15,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:15,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449017505] [2023-12-21 13:15:15,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449017505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:15:15,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:15:15,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:15:15,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144630683] [2023-12-21 13:15:15,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:15:15,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:15:15,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:15,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:15:15,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:15:15,402 INFO L87 Difference]: Start difference. First operand 119942 states and 144098 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 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) [2023-12-21 13:15:16,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:16,417 INFO L93 Difference]: Finished difference Result 142588 states and 171086 transitions. [2023-12-21 13:15:16,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 13:15:16,417 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 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 104 [2023-12-21 13:15:16,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:16,544 INFO L225 Difference]: With dead ends: 142588 [2023-12-21 13:15:16,544 INFO L226 Difference]: Without dead ends: 120019 [2023-12-21 13:15:16,571 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 [2023-12-21 13:15:16,572 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 2114 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2114 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:15:16,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2114 Valid, 1389 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:15:16,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120019 states. [2023-12-21 13:15:17,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120019 to 119942. [2023-12-21 13:15:17,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119942 states, 119941 states have (on average 1.2013906837528452) internal successors, (144096), 119941 states have internal predecessors, (144096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:17,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119942 states to 119942 states and 144096 transitions. [2023-12-21 13:15:17,877 INFO L78 Accepts]: Start accepts. Automaton has 119942 states and 144096 transitions. Word has length 104 [2023-12-21 13:15:17,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:17,877 INFO L495 AbstractCegarLoop]: Abstraction has 119942 states and 144096 transitions. [2023-12-21 13:15:17,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 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) [2023-12-21 13:15:17,878 INFO L276 IsEmpty]: Start isEmpty. Operand 119942 states and 144096 transitions. [2023-12-21 13:15:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 13:15:17,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:17,890 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:17,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-21 13:15:17,890 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)] === [2023-12-21 13:15:17,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:17,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1967108445, now seen corresponding path program 1 times [2023-12-21 13:15:17,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:17,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830346629] [2023-12-21 13:15:17,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:17,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:17,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:17,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830346629] [2023-12-21 13:15:17,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830346629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:15:17,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:15:17,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:15:17,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258159088] [2023-12-21 13:15:17,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:15:17,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:15:17,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:17,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:15:17,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:15:17,941 INFO L87 Difference]: Start difference. First operand 119942 states and 144096 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 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) [2023-12-21 13:15:18,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:18,554 INFO L93 Difference]: Finished difference Result 165928 states and 199138 transitions. [2023-12-21 13:15:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:15:18,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 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 105 [2023-12-21 13:15:18,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:18,717 INFO L225 Difference]: With dead ends: 165928 [2023-12-21 13:15:18,717 INFO L226 Difference]: Without dead ends: 125568 [2023-12-21 13:15:18,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:15:18,759 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 119 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1057 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 [2023-12-21 13:15:18,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1057 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:15:18,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125568 states. [2023-12-21 13:15:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125568 to 125281. [2023-12-21 13:15:20,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125281 states, 125280 states have (on average 1.1979246487867177) internal successors, (150076), 125280 states have internal predecessors, (150076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:20,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125281 states to 125281 states and 150076 transitions. [2023-12-21 13:15:20,255 INFO L78 Accepts]: Start accepts. Automaton has 125281 states and 150076 transitions. Word has length 105 [2023-12-21 13:15:20,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:20,255 INFO L495 AbstractCegarLoop]: Abstraction has 125281 states and 150076 transitions. [2023-12-21 13:15:20,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 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) [2023-12-21 13:15:20,255 INFO L276 IsEmpty]: Start isEmpty. Operand 125281 states and 150076 transitions. [2023-12-21 13:15:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 13:15:20,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:20,267 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:20,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-21 13:15:20,268 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)] === [2023-12-21 13:15:20,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:20,277 INFO L85 PathProgramCache]: Analyzing trace with hash -602731510, now seen corresponding path program 1 times [2023-12-21 13:15:20,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:20,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625389169] [2023-12-21 13:15:20,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:20,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:20,806 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:20,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:20,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625389169] [2023-12-21 13:15:20,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625389169] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:15:20,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863642724] [2023-12-21 13:15:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:20,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:15:20,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:15:20,822 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) [2023-12-21 13:15:20,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 13:15:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:21,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 13:15:21,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:15:21,583 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:21,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:15:22,310 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:22,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863642724] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:15:22,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:15:22,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 27 [2023-12-21 13:15:22,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884398225] [2023-12-21 13:15:22,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:15:22,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 13:15:22,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:22,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 13:15:22,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2023-12-21 13:15:22,312 INFO L87 Difference]: Start difference. First operand 125281 states and 150076 transitions. Second operand has 28 states, 28 states have (on average 10.071428571428571) internal successors, (282), 27 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:28,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:28,932 INFO L93 Difference]: Finished difference Result 408043 states and 483691 transitions. [2023-12-21 13:15:28,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2023-12-21 13:15:28,933 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.071428571428571) internal successors, (282), 27 states have internal predecessors, (282), 0 states have call successors, (0), 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 105 [2023-12-21 13:15:28,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:29,595 INFO L225 Difference]: With dead ends: 408043 [2023-12-21 13:15:29,595 INFO L226 Difference]: Without dead ends: 395930 [2023-12-21 13:15:30,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5798 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3079, Invalid=13691, Unknown=0, NotChecked=0, Total=16770 [2023-12-21 13:15:30,043 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 9307 mSDsluCounter, 6974 mSDsCounter, 0 mSdLazyCounter, 6598 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9307 SdHoareTripleChecker+Valid, 7550 SdHoareTripleChecker+Invalid, 6738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 6598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:15:30,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9307 Valid, 7550 Invalid, 6738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 6598 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-21 13:15:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395930 states. [2023-12-21 13:15:32,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395930 to 125345. [2023-12-21 13:15:32,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125345 states, 125344 states have (on average 1.1979113479703856) internal successors, (150151), 125344 states have internal predecessors, (150151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:32,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125345 states to 125345 states and 150151 transitions. [2023-12-21 13:15:32,786 INFO L78 Accepts]: Start accepts. Automaton has 125345 states and 150151 transitions. Word has length 105 [2023-12-21 13:15:32,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:32,786 INFO L495 AbstractCegarLoop]: Abstraction has 125345 states and 150151 transitions. [2023-12-21 13:15:32,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.071428571428571) internal successors, (282), 27 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:32,786 INFO L276 IsEmpty]: Start isEmpty. Operand 125345 states and 150151 transitions. [2023-12-21 13:15:32,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 13:15:32,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:32,799 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:32,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-21 13:15:33,004 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,SelfDestructingSolverStorable43 [2023-12-21 13:15:33,005 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)] === [2023-12-21 13:15:33,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash -520731978, now seen corresponding path program 1 times [2023-12-21 13:15:33,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:33,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927875192] [2023-12-21 13:15:33,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:33,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:33,062 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-21 13:15:33,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:33,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927875192] [2023-12-21 13:15:33,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927875192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:15:33,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:15:33,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:15:33,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133330857] [2023-12-21 13:15:33,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:15:33,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:15:33,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:33,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:15:33,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:15:33,063 INFO L87 Difference]: Start difference. First operand 125345 states and 150151 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) [2023-12-21 13:15:34,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:34,126 INFO L93 Difference]: Finished difference Result 214714 states and 257421 transitions. [2023-12-21 13:15:34,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:15:34,127 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 106 [2023-12-21 13:15:34,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:34,325 INFO L225 Difference]: With dead ends: 214714 [2023-12-21 13:15:34,326 INFO L226 Difference]: Without dead ends: 185064 [2023-12-21 13:15:34,374 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 [2023-12-21 13:15:34,375 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 478 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:15:34,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1094 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:15:34,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185064 states. [2023-12-21 13:15:35,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185064 to 140215. [2023-12-21 13:15:36,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140215 states, 140214 states have (on average 1.198846049609882) internal successors, (168095), 140214 states have internal predecessors, (168095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:36,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140215 states to 140215 states and 168095 transitions. [2023-12-21 13:15:36,266 INFO L78 Accepts]: Start accepts. Automaton has 140215 states and 168095 transitions. Word has length 106 [2023-12-21 13:15:36,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:36,266 INFO L495 AbstractCegarLoop]: Abstraction has 140215 states and 168095 transitions. [2023-12-21 13:15:36,266 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) [2023-12-21 13:15:36,266 INFO L276 IsEmpty]: Start isEmpty. Operand 140215 states and 168095 transitions. [2023-12-21 13:15:36,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 13:15:36,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:36,280 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:36,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-21 13:15:36,280 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)] === [2023-12-21 13:15:36,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:36,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1875705013, now seen corresponding path program 1 times [2023-12-21 13:15:36,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:36,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270807191] [2023-12-21 13:15:36,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:36,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:36,954 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:36,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:36,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270807191] [2023-12-21 13:15:36,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270807191] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:15:36,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096389597] [2023-12-21 13:15:36,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:36,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:15:36,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:15:36,955 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) [2023-12-21 13:15:36,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 13:15:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:37,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 13:15:37,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:15:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:37,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:15:37,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096389597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:15:37,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:15:37,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 20 [2023-12-21 13:15:37,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166088062] [2023-12-21 13:15:37,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:15:37,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 13:15:37,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:37,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 13:15:37,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-12-21 13:15:37,670 INFO L87 Difference]: Start difference. First operand 140215 states and 168095 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:38,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:38,795 INFO L93 Difference]: Finished difference Result 177225 states and 212629 transitions. [2023-12-21 13:15:38,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:15:38,798 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 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 [2023-12-21 13:15:38,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:38,977 INFO L225 Difference]: With dead ends: 177225 [2023-12-21 13:15:38,977 INFO L226 Difference]: Without dead ends: 158000 [2023-12-21 13:15:39,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2023-12-21 13:15:39,022 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 944 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 4572 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:15:39,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 4572 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:15:39,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158000 states. [2023-12-21 13:15:40,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158000 to 150641. [2023-12-21 13:15:40,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150641 states, 150640 states have (on average 1.199044078597982) internal successors, (180624), 150640 states have internal predecessors, (180624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:41,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150641 states to 150641 states and 180624 transitions. [2023-12-21 13:15:41,329 INFO L78 Accepts]: Start accepts. Automaton has 150641 states and 180624 transitions. Word has length 106 [2023-12-21 13:15:41,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:41,329 INFO L495 AbstractCegarLoop]: Abstraction has 150641 states and 180624 transitions. [2023-12-21 13:15:41,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:41,330 INFO L276 IsEmpty]: Start isEmpty. Operand 150641 states and 180624 transitions. [2023-12-21 13:15:41,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 13:15:41,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:41,344 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:41,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 13:15:41,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:15:41,554 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)] === [2023-12-21 13:15:41,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:41,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1702560793, now seen corresponding path program 1 times [2023-12-21 13:15:41,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:41,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106633942] [2023-12-21 13:15:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:41,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:42,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:42,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:42,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106633942] [2023-12-21 13:15:42,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106633942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:15:42,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:15:42,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 13:15:42,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305657305] [2023-12-21 13:15:42,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:15:42,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:15:42,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:42,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:15:42,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:15:42,326 INFO L87 Difference]: Start difference. First operand 150641 states and 180624 transitions. Second operand has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:48,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:15:48,733 INFO L93 Difference]: Finished difference Result 242360 states and 286037 transitions. [2023-12-21 13:15:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2023-12-21 13:15:48,734 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 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 [2023-12-21 13:15:48,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:15:49,068 INFO L225 Difference]: With dead ends: 242360 [2023-12-21 13:15:49,069 INFO L226 Difference]: Without dead ends: 232555 [2023-12-21 13:15:49,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6830 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2725, Invalid=14045, Unknown=0, NotChecked=0, Total=16770 [2023-12-21 13:15:49,114 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 4859 mSDsluCounter, 3623 mSDsCounter, 0 mSdLazyCounter, 3698 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4859 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 3776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:15:49,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4859 Valid, 4126 Invalid, 3776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3698 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 13:15:49,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232555 states. [2023-12-21 13:15:51,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232555 to 150535. [2023-12-21 13:15:51,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150535 states, 150534 states have (on average 1.1990646631325814) internal successors, (180500), 150534 states have internal predecessors, (180500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150535 states to 150535 states and 180500 transitions. [2023-12-21 13:15:51,688 INFO L78 Accepts]: Start accepts. Automaton has 150535 states and 180500 transitions. Word has length 106 [2023-12-21 13:15:51,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:15:51,688 INFO L495 AbstractCegarLoop]: Abstraction has 150535 states and 180500 transitions. [2023-12-21 13:15:51,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:15:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 150535 states and 180500 transitions. [2023-12-21 13:15:51,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 13:15:51,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:15:51,709 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:15:51,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-21 13:15:51,709 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)] === [2023-12-21 13:15:51,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:15:51,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1085848739, now seen corresponding path program 1 times [2023-12-21 13:15:51,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:15:51,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674058107] [2023-12-21 13:15:51,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:51,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:15:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:52,917 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:52,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:15:52,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674058107] [2023-12-21 13:15:52,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674058107] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:15:52,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568918588] [2023-12-21 13:15:52,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:15:52,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:15:52,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:15:52,929 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) [2023-12-21 13:15:52,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 13:15:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:15:53,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 13:15:53,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:15:53,887 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:53,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:15:54,291 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:15:54,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568918588] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:15:54,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:15:54,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 10] total 34 [2023-12-21 13:15:54,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774696393] [2023-12-21 13:15:54,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:15:54,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-21 13:15:54,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:15:54,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-21 13:15:54,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2023-12-21 13:15:54,294 INFO L87 Difference]: Start difference. First operand 150535 states and 180500 transitions. Second operand has 34 states, 34 states have (on average 8.411764705882353) internal successors, (286), 34 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:09,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:09,714 INFO L93 Difference]: Finished difference Result 242962 states and 287477 transitions. [2023-12-21 13:16:09,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2023-12-21 13:16:09,715 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.411764705882353) internal successors, (286), 34 states have internal predecessors, (286), 0 states have call successors, (0), 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 [2023-12-21 13:16:09,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:10,035 INFO L225 Difference]: With dead ends: 242962 [2023-12-21 13:16:10,035 INFO L226 Difference]: Without dead ends: 231090 [2023-12-21 13:16:10,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13041 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=7259, Invalid=30571, Unknown=0, NotChecked=0, Total=37830 [2023-12-21 13:16:10,085 INFO L413 NwaCegarLoop]: 1114 mSDtfsCounter, 3975 mSDsluCounter, 18342 mSDsCounter, 0 mSdLazyCounter, 5617 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3975 SdHoareTripleChecker+Valid, 19456 SdHoareTripleChecker+Invalid, 5639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 5617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:10,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3975 Valid, 19456 Invalid, 5639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22 Valid, 5617 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-21 13:16:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231090 states. [2023-12-21 13:16:12,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231090 to 161398. [2023-12-21 13:16:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161398 states, 161397 states have (on average 1.1970916435869317) internal successors, (193207), 161397 states have internal predecessors, (193207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:12,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161398 states to 161398 states and 193207 transitions. [2023-12-21 13:16:12,400 INFO L78 Accepts]: Start accepts. Automaton has 161398 states and 193207 transitions. Word has length 106 [2023-12-21 13:16:12,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:12,400 INFO L495 AbstractCegarLoop]: Abstraction has 161398 states and 193207 transitions. [2023-12-21 13:16:12,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.411764705882353) internal successors, (286), 34 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:12,400 INFO L276 IsEmpty]: Start isEmpty. Operand 161398 states and 193207 transitions. [2023-12-21 13:16:12,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:12,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:12,415 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:12,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 13:16:12,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:16:12,621 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)] === [2023-12-21 13:16:12,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:12,621 INFO L85 PathProgramCache]: Analyzing trace with hash 988212410, now seen corresponding path program 1 times [2023-12-21 13:16:12,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:12,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134147572] [2023-12-21 13:16:12,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:12,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:16:12,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:12,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134147572] [2023-12-21 13:16:12,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134147572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:16:12,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:16:12,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:16:12,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726841811] [2023-12-21 13:16:12,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:16:12,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:16:12,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:12,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:16:12,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:16:12,688 INFO L87 Difference]: Start difference. First operand 161398 states and 193207 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 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) [2023-12-21 13:16:13,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:13,706 INFO L93 Difference]: Finished difference Result 315075 states and 378604 transitions. [2023-12-21 13:16:13,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:16:13,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 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 107 [2023-12-21 13:16:13,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:13,963 INFO L225 Difference]: With dead ends: 315075 [2023-12-21 13:16:13,964 INFO L226 Difference]: Without dead ends: 187928 [2023-12-21 13:16:14,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:16:14,040 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 297 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:14,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 741 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:16:14,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187928 states. [2023-12-21 13:16:15,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187928 to 181470. [2023-12-21 13:16:16,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181470 states, 181469 states have (on average 1.189773459929795) internal successors, (215907), 181469 states have internal predecessors, (215907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:16,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181470 states to 181470 states and 215907 transitions. [2023-12-21 13:16:16,469 INFO L78 Accepts]: Start accepts. Automaton has 181470 states and 215907 transitions. Word has length 107 [2023-12-21 13:16:16,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:16,469 INFO L495 AbstractCegarLoop]: Abstraction has 181470 states and 215907 transitions. [2023-12-21 13:16:16,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 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) [2023-12-21 13:16:16,470 INFO L276 IsEmpty]: Start isEmpty. Operand 181470 states and 215907 transitions. [2023-12-21 13:16:16,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:16,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:16,483 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:16,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-21 13:16:16,483 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)] === [2023-12-21 13:16:16,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:16,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1524015769, now seen corresponding path program 1 times [2023-12-21 13:16:16,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:16,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237315211] [2023-12-21 13:16:16,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:16,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:16,928 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:16,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:16,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237315211] [2023-12-21 13:16:16,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237315211] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:16:16,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064474278] [2023-12-21 13:16:16,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:16,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:16:16,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:16:16,932 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) [2023-12-21 13:16:16,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 13:16:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:17,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 13:16:17,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:16:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:18,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:16:18,389 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:18,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064474278] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:16:18,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:16:18,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 10] total 29 [2023-12-21 13:16:18,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304768422] [2023-12-21 13:16:18,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:16:18,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-21 13:16:18,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:18,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-21 13:16:18,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=717, Unknown=0, NotChecked=0, Total=812 [2023-12-21 13:16:18,400 INFO L87 Difference]: Start difference. First operand 181470 states and 215907 transitions. Second operand has 29 states, 29 states have (on average 8.689655172413794) internal successors, (252), 29 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:20,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:20,755 INFO L93 Difference]: Finished difference Result 336427 states and 398365 transitions. [2023-12-21 13:16:20,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-21 13:16:20,755 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.689655172413794) internal successors, (252), 29 states have internal predecessors, (252), 0 states have call successors, (0), 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 [2023-12-21 13:16:20,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:21,173 INFO L225 Difference]: With dead ends: 336427 [2023-12-21 13:16:21,173 INFO L226 Difference]: Without dead ends: 322459 [2023-12-21 13:16:21,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=515, Invalid=2137, Unknown=0, NotChecked=0, Total=2652 [2023-12-21 13:16:21,247 INFO L413 NwaCegarLoop]: 797 mSDtfsCounter, 5026 mSDsluCounter, 12670 mSDsCounter, 0 mSdLazyCounter, 2911 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5026 SdHoareTripleChecker+Valid, 13467 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:21,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5026 Valid, 13467 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2911 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:16:21,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322459 states. [2023-12-21 13:16:23,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322459 to 181658. [2023-12-21 13:16:23,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181658 states, 181657 states have (on average 1.1896981674254226) internal successors, (216117), 181657 states have internal predecessors, (216117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:24,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181658 states to 181658 states and 216117 transitions. [2023-12-21 13:16:24,338 INFO L78 Accepts]: Start accepts. Automaton has 181658 states and 216117 transitions. Word has length 107 [2023-12-21 13:16:24,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:24,338 INFO L495 AbstractCegarLoop]: Abstraction has 181658 states and 216117 transitions. [2023-12-21 13:16:24,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.689655172413794) internal successors, (252), 29 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:24,338 INFO L276 IsEmpty]: Start isEmpty. Operand 181658 states and 216117 transitions. [2023-12-21 13:16:24,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:24,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:24,351 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:24,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 13:16:24,556 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,SelfDestructingSolverStorable49 [2023-12-21 13:16:24,557 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)] === [2023-12-21 13:16:24,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:24,557 INFO L85 PathProgramCache]: Analyzing trace with hash -942019966, now seen corresponding path program 1 times [2023-12-21 13:16:24,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:24,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395632858] [2023-12-21 13:16:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:24,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:24,603 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-21 13:16:24,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:24,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395632858] [2023-12-21 13:16:24,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395632858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:16:24,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:16:24,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:16:24,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453907940] [2023-12-21 13:16:24,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:16:24,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:16:24,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:16:24,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:16:24,604 INFO L87 Difference]: Start difference. First operand 181658 states and 216117 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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) [2023-12-21 13:16:25,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:25,670 INFO L93 Difference]: Finished difference Result 258348 states and 306360 transitions. [2023-12-21 13:16:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:16:25,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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 107 [2023-12-21 13:16:25,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:26,000 INFO L225 Difference]: With dead ends: 258348 [2023-12-21 13:16:26,000 INFO L226 Difference]: Without dead ends: 231757 [2023-12-21 13:16:26,046 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 [2023-12-21 13:16:26,047 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 439 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:26,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 997 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:16:26,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231757 states. [2023-12-21 13:16:27,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231757 to 181533. [2023-12-21 13:16:27,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181533 states, 181532 states have (on average 1.1896800564087875) internal successors, (215965), 181532 states have internal predecessors, (215965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:28,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181533 states to 181533 states and 215965 transitions. [2023-12-21 13:16:28,469 INFO L78 Accepts]: Start accepts. Automaton has 181533 states and 215965 transitions. Word has length 107 [2023-12-21 13:16:28,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:28,469 INFO L495 AbstractCegarLoop]: Abstraction has 181533 states and 215965 transitions. [2023-12-21 13:16:28,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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) [2023-12-21 13:16:28,470 INFO L276 IsEmpty]: Start isEmpty. Operand 181533 states and 215965 transitions. [2023-12-21 13:16:28,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:28,483 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:28,483 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:28,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-21 13:16:28,483 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)] === [2023-12-21 13:16:28,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:28,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2067279935, now seen corresponding path program 1 times [2023-12-21 13:16:28,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:28,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305103146] [2023-12-21 13:16:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:28,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:16:28,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:28,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305103146] [2023-12-21 13:16:28,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305103146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:16:28,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:16:28,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:16:28,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894691182] [2023-12-21 13:16:28,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:16:28,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:16:28,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:28,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:16:28,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:16:28,641 INFO L87 Difference]: Start difference. First operand 181533 states and 215965 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) [2023-12-21 13:16:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:29,929 INFO L93 Difference]: Finished difference Result 257397 states and 305816 transitions. [2023-12-21 13:16:29,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:16:29,929 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 107 [2023-12-21 13:16:29,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:30,172 INFO L225 Difference]: With dead ends: 257397 [2023-12-21 13:16:30,172 INFO L226 Difference]: Without dead ends: 230814 [2023-12-21 13:16:30,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-12-21 13:16:30,234 INFO L413 NwaCegarLoop]: 401 mSDtfsCounter, 1652 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:30,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 1919 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:16:30,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230814 states. [2023-12-21 13:16:32,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230814 to 181416. [2023-12-21 13:16:32,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181416 states, 181415 states have (on average 1.1897252156657387) internal successors, (215834), 181415 states have internal predecessors, (215834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181416 states to 181416 states and 215834 transitions. [2023-12-21 13:16:32,539 INFO L78 Accepts]: Start accepts. Automaton has 181416 states and 215834 transitions. Word has length 107 [2023-12-21 13:16:32,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:32,539 INFO L495 AbstractCegarLoop]: Abstraction has 181416 states and 215834 transitions. [2023-12-21 13:16:32,539 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) [2023-12-21 13:16:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand 181416 states and 215834 transitions. [2023-12-21 13:16:32,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:32,551 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:32,552 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:32,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-21 13:16:32,553 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)] === [2023-12-21 13:16:32,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:32,553 INFO L85 PathProgramCache]: Analyzing trace with hash -29136948, now seen corresponding path program 1 times [2023-12-21 13:16:32,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:32,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652270022] [2023-12-21 13:16:32,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:32,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:32,611 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:32,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:32,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652270022] [2023-12-21 13:16:32,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652270022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:16:32,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:16:32,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:16:32,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357317067] [2023-12-21 13:16:32,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:16:32,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:16:32,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:32,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:16:32,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:16:32,612 INFO L87 Difference]: Start difference. First operand 181416 states and 215834 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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) [2023-12-21 13:16:33,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:33,550 INFO L93 Difference]: Finished difference Result 310610 states and 367970 transitions. [2023-12-21 13:16:33,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:16:33,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 [2023-12-21 13:16:33,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:34,086 INFO L225 Difference]: With dead ends: 310610 [2023-12-21 13:16:34,087 INFO L226 Difference]: Without dead ends: 130738 [2023-12-21 13:16:34,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:16:34,215 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 149 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:34,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 814 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:16:34,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130738 states. [2023-12-21 13:16:35,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130738 to 123421. [2023-12-21 13:16:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123421 states, 123420 states have (on average 1.1630205801328797) internal successors, (143540), 123420 states have internal predecessors, (143540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:35,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123421 states to 123421 states and 143540 transitions. [2023-12-21 13:16:35,690 INFO L78 Accepts]: Start accepts. Automaton has 123421 states and 143540 transitions. Word has length 107 [2023-12-21 13:16:35,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:35,690 INFO L495 AbstractCegarLoop]: Abstraction has 123421 states and 143540 transitions. [2023-12-21 13:16:35,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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) [2023-12-21 13:16:35,690 INFO L276 IsEmpty]: Start isEmpty. Operand 123421 states and 143540 transitions. [2023-12-21 13:16:35,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:35,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:35,697 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:35,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-21 13:16:35,697 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)] === [2023-12-21 13:16:35,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:35,698 INFO L85 PathProgramCache]: Analyzing trace with hash 960482339, now seen corresponding path program 1 times [2023-12-21 13:16:35,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:35,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225510430] [2023-12-21 13:16:35,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:35,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:36,044 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:36,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:36,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225510430] [2023-12-21 13:16:36,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225510430] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:16:36,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892765474] [2023-12-21 13:16:36,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:36,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:16:36,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:16:36,046 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) [2023-12-21 13:16:36,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 13:16:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:36,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 13:16:36,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:16:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:37,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:16:37,619 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:37,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892765474] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:16:37,619 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:16:37,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2023-12-21 13:16:37,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360683310] [2023-12-21 13:16:37,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:16:37,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-21 13:16:37,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:37,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-21 13:16:37,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2023-12-21 13:16:37,623 INFO L87 Difference]: Start difference. First operand 123421 states and 143540 transitions. Second operand has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 22 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:40,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:40,736 INFO L93 Difference]: Finished difference Result 259862 states and 301178 transitions. [2023-12-21 13:16:40,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-21 13:16:40,737 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 22 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-21 13:16:40,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:41,170 INFO L225 Difference]: With dead ends: 259862 [2023-12-21 13:16:41,171 INFO L226 Difference]: Without dead ends: 250792 [2023-12-21 13:16:41,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=569, Invalid=2623, Unknown=0, NotChecked=0, Total=3192 [2023-12-21 13:16:41,185 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 5005 mSDsluCounter, 5020 mSDsCounter, 0 mSdLazyCounter, 4365 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5005 SdHoareTripleChecker+Valid, 5444 SdHoareTripleChecker+Invalid, 4414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 4365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:41,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5005 Valid, 5444 Invalid, 4414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 4365 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 13:16:41,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250792 states. [2023-12-21 13:16:42,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250792 to 123422. [2023-12-21 13:16:42,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123422 states, 123421 states have (on average 1.163043566329879) internal successors, (143544), 123421 states have internal predecessors, (143544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:42,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123422 states to 123422 states and 143544 transitions. [2023-12-21 13:16:42,966 INFO L78 Accepts]: Start accepts. Automaton has 123422 states and 143544 transitions. Word has length 107 [2023-12-21 13:16:42,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:42,966 INFO L495 AbstractCegarLoop]: Abstraction has 123422 states and 143544 transitions. [2023-12-21 13:16:42,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 22 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:42,966 INFO L276 IsEmpty]: Start isEmpty. Operand 123422 states and 143544 transitions. [2023-12-21 13:16:42,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:42,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:42,972 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:42,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 13:16:43,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:16:43,178 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)] === [2023-12-21 13:16:43,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:43,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1495038669, now seen corresponding path program 1 times [2023-12-21 13:16:43,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:43,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553390934] [2023-12-21 13:16:43,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:43,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:43,234 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-21 13:16:43,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:43,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553390934] [2023-12-21 13:16:43,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553390934] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:16:43,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:16:43,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:16:43,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349332333] [2023-12-21 13:16:43,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:16:43,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:16:43,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:43,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:16:43,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:16:43,236 INFO L87 Difference]: Start difference. First operand 123422 states and 143544 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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) [2023-12-21 13:16:44,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:44,091 INFO L93 Difference]: Finished difference Result 204721 states and 238347 transitions. [2023-12-21 13:16:44,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:16:44,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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 107 [2023-12-21 13:16:44,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:44,245 INFO L225 Difference]: With dead ends: 204721 [2023-12-21 13:16:44,245 INFO L226 Difference]: Without dead ends: 177990 [2023-12-21 13:16:44,263 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 [2023-12-21 13:16:44,264 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 441 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:44,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 1089 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:16:44,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177990 states. [2023-12-21 13:16:45,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177990 to 123089. [2023-12-21 13:16:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123089 states, 123088 states have (on average 1.1629403353698167) internal successors, (143144), 123088 states have internal predecessors, (143144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:45,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123089 states to 123089 states and 143144 transitions. [2023-12-21 13:16:45,700 INFO L78 Accepts]: Start accepts. Automaton has 123089 states and 143144 transitions. Word has length 107 [2023-12-21 13:16:45,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:45,700 INFO L495 AbstractCegarLoop]: Abstraction has 123089 states and 143144 transitions. [2023-12-21 13:16:45,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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) [2023-12-21 13:16:45,700 INFO L276 IsEmpty]: Start isEmpty. Operand 123089 states and 143144 transitions. [2023-12-21 13:16:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:45,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:45,707 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:45,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-12-21 13:16:45,707 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)] === [2023-12-21 13:16:45,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:45,707 INFO L85 PathProgramCache]: Analyzing trace with hash -621560974, now seen corresponding path program 1 times [2023-12-21 13:16:45,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:45,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327454646] [2023-12-21 13:16:45,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:45,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:16:46,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:46,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327454646] [2023-12-21 13:16:46,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327454646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:16:46,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:16:46,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 13:16:46,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360491294] [2023-12-21 13:16:46,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:16:46,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 13:16:46,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:46,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 13:16:46,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-21 13:16:46,083 INFO L87 Difference]: Start difference. First operand 123089 states and 143144 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 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) [2023-12-21 13:16:46,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:46,739 INFO L93 Difference]: Finished difference Result 144430 states and 168295 transitions. [2023-12-21 13:16:46,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 13:16:46,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 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 107 [2023-12-21 13:16:46,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:46,869 INFO L225 Difference]: With dead ends: 144430 [2023-12-21 13:16:46,869 INFO L226 Difference]: Without dead ends: 126440 [2023-12-21 13:16:46,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:16:46,907 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 1793 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1793 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:46,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1793 Valid, 1053 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:16:46,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126440 states. [2023-12-21 13:16:48,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126440 to 122971. [2023-12-21 13:16:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122971 states, 122970 states have (on average 1.1629909734081483) internal successors, (143013), 122970 states have internal predecessors, (143013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:48,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122971 states to 122971 states and 143013 transitions. [2023-12-21 13:16:48,483 INFO L78 Accepts]: Start accepts. Automaton has 122971 states and 143013 transitions. Word has length 107 [2023-12-21 13:16:48,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:48,483 INFO L495 AbstractCegarLoop]: Abstraction has 122971 states and 143013 transitions. [2023-12-21 13:16:48,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 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) [2023-12-21 13:16:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 122971 states and 143013 transitions. [2023-12-21 13:16:48,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:48,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:48,489 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:48,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-21 13:16:48,490 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)] === [2023-12-21 13:16:48,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:48,490 INFO L85 PathProgramCache]: Analyzing trace with hash -226222990, now seen corresponding path program 1 times [2023-12-21 13:16:48,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:48,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386881346] [2023-12-21 13:16:48,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:48,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:48,990 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:48,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:48,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386881346] [2023-12-21 13:16:48,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386881346] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:16:48,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453791597] [2023-12-21 13:16:48,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:48,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:16:48,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:16:48,992 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) [2023-12-21 13:16:49,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 13:16:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:49,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 13:16:49,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:16:49,960 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:49,960 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:16:50,451 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:50,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453791597] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:16:50,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:16:50,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 35 [2023-12-21 13:16:50,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299227261] [2023-12-21 13:16:50,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:16:50,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-21 13:16:50,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:50,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-21 13:16:50,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1087, Unknown=0, NotChecked=0, Total=1190 [2023-12-21 13:16:50,453 INFO L87 Difference]: Start difference. First operand 122971 states and 143013 transitions. Second operand has 35 states, 35 states have (on average 8.428571428571429) internal successors, (295), 35 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:54,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:54,700 INFO L93 Difference]: Finished difference Result 167921 states and 193918 transitions. [2023-12-21 13:16:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-21 13:16:54,701 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 8.428571428571429) internal successors, (295), 35 states have internal predecessors, (295), 0 states have call successors, (0), 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 [2023-12-21 13:16:54,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:54,866 INFO L225 Difference]: With dead ends: 167921 [2023-12-21 13:16:54,866 INFO L226 Difference]: Without dead ends: 152436 [2023-12-21 13:16:54,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1730 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1357, Invalid=7015, Unknown=0, NotChecked=0, Total=8372 [2023-12-21 13:16:54,912 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 5189 mSDsluCounter, 15716 mSDsCounter, 0 mSdLazyCounter, 4277 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5189 SdHoareTripleChecker+Valid, 16638 SdHoareTripleChecker+Invalid, 4297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 4277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:54,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5189 Valid, 16638 Invalid, 4297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 4277 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 13:16:55,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152436 states. [2023-12-21 13:16:56,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152436 to 122269. [2023-12-21 13:16:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122269 states, 122268 states have (on average 1.1613750122681323) internal successors, (141999), 122268 states have internal predecessors, (141999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:56,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122269 states to 122269 states and 141999 transitions. [2023-12-21 13:16:56,621 INFO L78 Accepts]: Start accepts. Automaton has 122269 states and 141999 transitions. Word has length 107 [2023-12-21 13:16:56,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:56,621 INFO L495 AbstractCegarLoop]: Abstraction has 122269 states and 141999 transitions. [2023-12-21 13:16:56,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 8.428571428571429) internal successors, (295), 35 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand 122269 states and 141999 transitions. [2023-12-21 13:16:56,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:56,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:56,631 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:56,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 13:16:56,836 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,SelfDestructingSolverStorable56 [2023-12-21 13:16:56,837 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)] === [2023-12-21 13:16:56,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:56,837 INFO L85 PathProgramCache]: Analyzing trace with hash 684969545, now seen corresponding path program 1 times [2023-12-21 13:16:56,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:56,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291906526] [2023-12-21 13:16:56,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:56,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:56,894 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:56,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:56,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291906526] [2023-12-21 13:16:56,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291906526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:16:56,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:16:56,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 13:16:56,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954881184] [2023-12-21 13:16:56,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:16:56,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 13:16:56,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:16:56,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 13:16:56,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:16:56,895 INFO L87 Difference]: Start difference. First operand 122269 states and 141999 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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) [2023-12-21 13:16:57,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:16:57,546 INFO L93 Difference]: Finished difference Result 178101 states and 206593 transitions. [2023-12-21 13:16:57,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 13:16:57,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 [2023-12-21 13:16:57,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:16:57,623 INFO L225 Difference]: With dead ends: 178101 [2023-12-21 13:16:57,624 INFO L226 Difference]: Without dead ends: 60985 [2023-12-21 13:16:57,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 13:16:57,668 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 188 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:16:57,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 765 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 13:16:57,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60985 states. [2023-12-21 13:16:58,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60985 to 59869. [2023-12-21 13:16:58,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59869 states, 59868 states have (on average 1.1376528362397273) internal successors, (68109), 59868 states have internal predecessors, (68109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:16:58,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59869 states to 59869 states and 68109 transitions. [2023-12-21 13:16:58,353 INFO L78 Accepts]: Start accepts. Automaton has 59869 states and 68109 transitions. Word has length 107 [2023-12-21 13:16:58,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:16:58,353 INFO L495 AbstractCegarLoop]: Abstraction has 59869 states and 68109 transitions. [2023-12-21 13:16:58,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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) [2023-12-21 13:16:58,353 INFO L276 IsEmpty]: Start isEmpty. Operand 59869 states and 68109 transitions. [2023-12-21 13:16:58,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 13:16:58,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:16:58,357 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:16:58,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-21 13:16:58,358 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)] === [2023-12-21 13:16:58,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:16:58,358 INFO L85 PathProgramCache]: Analyzing trace with hash -689511982, now seen corresponding path program 1 times [2023-12-21 13:16:58,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:16:58,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570099025] [2023-12-21 13:16:58,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:58,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:16:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:16:59,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:16:59,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570099025] [2023-12-21 13:16:59,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570099025] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:16:59,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679200833] [2023-12-21 13:16:59,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:16:59,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:16:59,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:16:59,327 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) [2023-12-21 13:16:59,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 13:16:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:16:59,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 13:16:59,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:17:00,512 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:00,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:17:01,162 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:01,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679200833] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:17:01,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:17:01,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 39 [2023-12-21 13:17:01,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647340997] [2023-12-21 13:17:01,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:17:01,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-21 13:17:01,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:01,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-21 13:17:01,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1436, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:17:01,164 INFO L87 Difference]: Start difference. First operand 59869 states and 68109 transitions. Second operand has 40 states, 40 states have (on average 7.675) internal successors, (307), 39 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:14,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:14,001 INFO L93 Difference]: Finished difference Result 134445 states and 151911 transitions. [2023-12-21 13:17:14,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2023-12-21 13:17:14,002 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 7.675) internal successors, (307), 39 states have internal predecessors, (307), 0 states have call successors, (0), 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 [2023-12-21 13:17:14,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:14,138 INFO L225 Difference]: With dead ends: 134445 [2023-12-21 13:17:14,138 INFO L226 Difference]: Without dead ends: 125679 [2023-12-21 13:17:14,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14604 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=6413, Invalid=35817, Unknown=0, NotChecked=0, Total=42230 [2023-12-21 13:17:14,160 INFO L413 NwaCegarLoop]: 1134 mSDtfsCounter, 6769 mSDsluCounter, 23863 mSDsCounter, 0 mSdLazyCounter, 6568 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6769 SdHoareTripleChecker+Valid, 24997 SdHoareTripleChecker+Invalid, 6625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 6568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:14,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6769 Valid, 24997 Invalid, 6625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 6568 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-21 13:17:14,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125679 states. [2023-12-21 13:17:14,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125679 to 58888. [2023-12-21 13:17:14,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58888 states, 58887 states have (on average 1.1364477728530915) internal successors, (66922), 58887 states have internal predecessors, (66922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58888 states to 58888 states and 66922 transitions. [2023-12-21 13:17:15,032 INFO L78 Accepts]: Start accepts. Automaton has 58888 states and 66922 transitions. Word has length 107 [2023-12-21 13:17:15,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:15,032 INFO L495 AbstractCegarLoop]: Abstraction has 58888 states and 66922 transitions. [2023-12-21 13:17:15,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 7.675) internal successors, (307), 39 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 58888 states and 66922 transitions. [2023-12-21 13:17:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 13:17:15,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:15,038 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:15,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 13:17:15,243 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,SelfDestructingSolverStorable58 [2023-12-21 13:17:15,243 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)] === [2023-12-21 13:17:15,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:15,244 INFO L85 PathProgramCache]: Analyzing trace with hash -703412368, now seen corresponding path program 1 times [2023-12-21 13:17:15,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:15,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475140713] [2023-12-21 13:17:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:15,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:15,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:17:15,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:15,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475140713] [2023-12-21 13:17:15,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475140713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:15,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:17:15,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 13:17:15,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822578192] [2023-12-21 13:17:15,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:15,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 13:17:15,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:15,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 13:17:15,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-21 13:17:15,543 INFO L87 Difference]: Start difference. First operand 58888 states and 66922 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 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) [2023-12-21 13:17:16,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:16,421 INFO L93 Difference]: Finished difference Result 83395 states and 94797 transitions. [2023-12-21 13:17:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-21 13:17:16,422 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 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 108 [2023-12-21 13:17:16,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:16,495 INFO L225 Difference]: With dead ends: 83395 [2023-12-21 13:17:16,495 INFO L226 Difference]: Without dead ends: 78622 [2023-12-21 13:17:16,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2023-12-21 13:17:16,517 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 1657 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:16,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 3430 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:17:16,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78622 states. [2023-12-21 13:17:17,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78622 to 58766. [2023-12-21 13:17:17,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58766 states, 58765 states have (on average 1.1365098272781418) internal successors, (66787), 58765 states have internal predecessors, (66787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58766 states to 58766 states and 66787 transitions. [2023-12-21 13:17:17,230 INFO L78 Accepts]: Start accepts. Automaton has 58766 states and 66787 transitions. Word has length 108 [2023-12-21 13:17:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:17,231 INFO L495 AbstractCegarLoop]: Abstraction has 58766 states and 66787 transitions. [2023-12-21 13:17:17,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 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) [2023-12-21 13:17:17,231 INFO L276 IsEmpty]: Start isEmpty. Operand 58766 states and 66787 transitions. [2023-12-21 13:17:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 13:17:17,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:17,236 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:17,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-21 13:17:17,236 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)] === [2023-12-21 13:17:17,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash -108737919, now seen corresponding path program 1 times [2023-12-21 13:17:17,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:17,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049096861] [2023-12-21 13:17:17,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:17,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:17:17,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:17,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049096861] [2023-12-21 13:17:17,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049096861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:17,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:17:17,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 13:17:17,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444770246] [2023-12-21 13:17:17,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:17,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 13:17:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:17,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 13:17:17,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-21 13:17:17,556 INFO L87 Difference]: Start difference. First operand 58766 states and 66787 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 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) [2023-12-21 13:17:18,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:18,208 INFO L93 Difference]: Finished difference Result 70323 states and 80086 transitions. [2023-12-21 13:17:18,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 13:17:18,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 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 108 [2023-12-21 13:17:18,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:18,275 INFO L225 Difference]: With dead ends: 70323 [2023-12-21 13:17:18,275 INFO L226 Difference]: Without dead ends: 65626 [2023-12-21 13:17:18,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2023-12-21 13:17:18,293 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1698 mSDsluCounter, 2095 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:18,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 2600 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:17:18,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65626 states. [2023-12-21 13:17:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65626 to 58679. [2023-12-21 13:17:18,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58679 states, 58678 states have (on average 1.1365758887487645) internal successors, (66692), 58678 states have internal predecessors, (66692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58679 states to 58679 states and 66692 transitions. [2023-12-21 13:17:18,897 INFO L78 Accepts]: Start accepts. Automaton has 58679 states and 66692 transitions. Word has length 108 [2023-12-21 13:17:18,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:18,897 INFO L495 AbstractCegarLoop]: Abstraction has 58679 states and 66692 transitions. [2023-12-21 13:17:18,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 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) [2023-12-21 13:17:18,898 INFO L276 IsEmpty]: Start isEmpty. Operand 58679 states and 66692 transitions. [2023-12-21 13:17:18,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 13:17:18,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:18,902 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:18,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-21 13:17:18,902 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)] === [2023-12-21 13:17:18,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:18,903 INFO L85 PathProgramCache]: Analyzing trace with hash 919382798, now seen corresponding path program 1 times [2023-12-21 13:17:18,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:18,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589690681] [2023-12-21 13:17:18,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:18,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:18,945 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:17:18,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:18,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589690681] [2023-12-21 13:17:18,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589690681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:18,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:17:18,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:17:18,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843093823] [2023-12-21 13:17:18,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:18,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:17:18,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:18,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:17:18,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:17:18,947 INFO L87 Difference]: Start difference. First operand 58679 states and 66692 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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) [2023-12-21 13:17:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:19,281 INFO L93 Difference]: Finished difference Result 73745 states and 83930 transitions. [2023-12-21 13:17:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:17:19,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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 108 [2023-12-21 13:17:19,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:19,344 INFO L225 Difference]: With dead ends: 73745 [2023-12-21 13:17:19,344 INFO L226 Difference]: Without dead ends: 65108 [2023-12-21 13:17:19,366 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 [2023-12-21 13:17:19,367 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 356 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:19,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 920 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:17:19,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65108 states. [2023-12-21 13:17:19,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65108 to 58494. [2023-12-21 13:17:19,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58494 states, 58493 states have (on average 1.1364949652095122) internal successors, (66477), 58493 states have internal predecessors, (66477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58494 states to 58494 states and 66477 transitions. [2023-12-21 13:17:20,220 INFO L78 Accepts]: Start accepts. Automaton has 58494 states and 66477 transitions. Word has length 108 [2023-12-21 13:17:20,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:20,220 INFO L495 AbstractCegarLoop]: Abstraction has 58494 states and 66477 transitions. [2023-12-21 13:17:20,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 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) [2023-12-21 13:17:20,220 INFO L276 IsEmpty]: Start isEmpty. Operand 58494 states and 66477 transitions. [2023-12-21 13:17:20,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 13:17:20,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:20,224 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:20,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-21 13:17:20,224 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)] === [2023-12-21 13:17:20,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:20,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1141225007, now seen corresponding path program 1 times [2023-12-21 13:17:20,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:20,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966435865] [2023-12-21 13:17:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:20,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:20,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966435865] [2023-12-21 13:17:20,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966435865] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:17:20,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585330872] [2023-12-21 13:17:20,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:20,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:17:20,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:17:20,534 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) [2023-12-21 13:17:20,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 13:17:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:20,787 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 13:17:20,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:17:21,257 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:21,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:17:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:21,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585330872] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:17:21,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:17:21,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2023-12-21 13:17:21,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867686181] [2023-12-21 13:17:21,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:17:21,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 13:17:21,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:21,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 13:17:21,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2023-12-21 13:17:21,655 INFO L87 Difference]: Start difference. First operand 58494 states and 66477 transitions. Second operand has 28 states, 28 states have (on average 10.75) internal successors, (301), 28 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) [2023-12-21 13:17:39,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:39,318 INFO L93 Difference]: Finished difference Result 171434 states and 193810 transitions. [2023-12-21 13:17:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 299 states. [2023-12-21 13:17:39,318 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.75) internal successors, (301), 28 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 109 [2023-12-21 13:17:39,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:39,492 INFO L225 Difference]: With dead ends: 171434 [2023-12-21 13:17:39,492 INFO L226 Difference]: Without dead ends: 166164 [2023-12-21 13:17:39,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 323 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44075 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=13356, Invalid=91944, Unknown=0, NotChecked=0, Total=105300 [2023-12-21 13:17:39,534 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 9529 mSDsluCounter, 8730 mSDsCounter, 0 mSdLazyCounter, 8063 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9529 SdHoareTripleChecker+Valid, 9225 SdHoareTripleChecker+Invalid, 8383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 8063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:39,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9529 Valid, 9225 Invalid, 8383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 8063 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-21 13:17:39,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166164 states. [2023-12-21 13:17:40,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166164 to 58308. [2023-12-21 13:17:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58308 states, 58307 states have (on average 1.1365016207316445) internal successors, (66266), 58307 states have internal predecessors, (66266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:40,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58308 states to 58308 states and 66266 transitions. [2023-12-21 13:17:40,571 INFO L78 Accepts]: Start accepts. Automaton has 58308 states and 66266 transitions. Word has length 109 [2023-12-21 13:17:40,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:40,571 INFO L495 AbstractCegarLoop]: Abstraction has 58308 states and 66266 transitions. [2023-12-21 13:17:40,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.75) internal successors, (301), 28 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) [2023-12-21 13:17:40,571 INFO L276 IsEmpty]: Start isEmpty. Operand 58308 states and 66266 transitions. [2023-12-21 13:17:40,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 13:17:40,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:40,576 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:40,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 13:17:40,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:17:40,781 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)] === [2023-12-21 13:17:40,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:40,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2001441502, now seen corresponding path program 1 times [2023-12-21 13:17:40,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:40,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044013398] [2023-12-21 13:17:40,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:40,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:41,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:41,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044013398] [2023-12-21 13:17:41,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044013398] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:17:41,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724753788] [2023-12-21 13:17:41,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:41,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:17:41,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:17:41,068 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) [2023-12-21 13:17:41,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 13:17:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:41,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 13:17:41,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:17:41,692 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:41,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:17:41,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724753788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:41,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:17:41,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 20 [2023-12-21 13:17:41,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573106561] [2023-12-21 13:17:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:41,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 13:17:41,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:41,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 13:17:41,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2023-12-21 13:17:41,694 INFO L87 Difference]: Start difference. First operand 58308 states and 66266 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:42,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:42,104 INFO L93 Difference]: Finished difference Result 64314 states and 73140 transitions. [2023-12-21 13:17:42,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 13:17:42,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 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 [2023-12-21 13:17:42,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:42,160 INFO L225 Difference]: With dead ends: 64314 [2023-12-21 13:17:42,161 INFO L226 Difference]: Without dead ends: 55270 [2023-12-21 13:17:42,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:17:42,176 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 821 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3667 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:42,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3667 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:17:42,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55270 states. [2023-12-21 13:17:42,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55270 to 54772. [2023-12-21 13:17:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54772 states, 54771 states have (on average 1.1345054864800717) internal successors, (62138), 54771 states have internal predecessors, (62138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:42,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54772 states to 54772 states and 62138 transitions. [2023-12-21 13:17:42,990 INFO L78 Accepts]: Start accepts. Automaton has 54772 states and 62138 transitions. Word has length 109 [2023-12-21 13:17:42,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:42,991 INFO L495 AbstractCegarLoop]: Abstraction has 54772 states and 62138 transitions. [2023-12-21 13:17:42,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:42,991 INFO L276 IsEmpty]: Start isEmpty. Operand 54772 states and 62138 transitions. [2023-12-21 13:17:42,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 13:17:42,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:42,995 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:43,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 13:17:43,201 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 [2023-12-21 13:17:43,201 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)] === [2023-12-21 13:17:43,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:43,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1694605944, now seen corresponding path program 1 times [2023-12-21 13:17:43,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:43,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371454225] [2023-12-21 13:17:43,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:43,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:43,410 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:17:43,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:43,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371454225] [2023-12-21 13:17:43,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371454225] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:43,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:17:43,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:17:43,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249237165] [2023-12-21 13:17:43,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:43,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:17:43,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:43,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:17:43,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:17:43,412 INFO L87 Difference]: Start difference. First operand 54772 states and 62138 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 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) [2023-12-21 13:17:44,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:44,072 INFO L93 Difference]: Finished difference Result 82267 states and 93631 transitions. [2023-12-21 13:17:44,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:17:44,072 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 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 110 [2023-12-21 13:17:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:44,143 INFO L225 Difference]: With dead ends: 82267 [2023-12-21 13:17:44,144 INFO L226 Difference]: Without dead ends: 70917 [2023-12-21 13:17:44,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:17:44,166 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 1166 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:44,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 1303 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:17:44,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70917 states. [2023-12-21 13:17:44,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70917 to 54772. [2023-12-21 13:17:44,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54772 states, 54771 states have (on average 1.1344689708057183) internal successors, (62136), 54771 states have internal predecessors, (62136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:44,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54772 states to 54772 states and 62136 transitions. [2023-12-21 13:17:44,964 INFO L78 Accepts]: Start accepts. Automaton has 54772 states and 62136 transitions. Word has length 110 [2023-12-21 13:17:44,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:44,965 INFO L495 AbstractCegarLoop]: Abstraction has 54772 states and 62136 transitions. [2023-12-21 13:17:44,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 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) [2023-12-21 13:17:44,965 INFO L276 IsEmpty]: Start isEmpty. Operand 54772 states and 62136 transitions. [2023-12-21 13:17:44,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 13:17:44,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:44,968 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:44,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-12-21 13:17:44,969 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)] === [2023-12-21 13:17:44,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:44,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1955102161, now seen corresponding path program 1 times [2023-12-21 13:17:44,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:44,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074797283] [2023-12-21 13:17:44,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:44,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:17:45,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:45,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074797283] [2023-12-21 13:17:45,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074797283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:45,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:17:45,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:17:45,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458387612] [2023-12-21 13:17:45,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:45,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:17:45,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:45,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:17:45,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:17:45,105 INFO L87 Difference]: Start difference. First operand 54772 states and 62136 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 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) [2023-12-21 13:17:45,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:45,685 INFO L93 Difference]: Finished difference Result 72690 states and 82710 transitions. [2023-12-21 13:17:45,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:17:45,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 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 110 [2023-12-21 13:17:45,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:45,753 INFO L225 Difference]: With dead ends: 72690 [2023-12-21 13:17:45,753 INFO L226 Difference]: Without dead ends: 66408 [2023-12-21 13:17:45,774 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 [2023-12-21 13:17:45,774 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 1397 mSDsluCounter, 1161 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:45,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 1572 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:17:45,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66408 states. [2023-12-21 13:17:46,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66408 to 54772. [2023-12-21 13:17:46,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54772 states, 54771 states have (on average 1.1344324551313651) internal successors, (62134), 54771 states have internal predecessors, (62134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:46,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54772 states to 54772 states and 62134 transitions. [2023-12-21 13:17:46,393 INFO L78 Accepts]: Start accepts. Automaton has 54772 states and 62134 transitions. Word has length 110 [2023-12-21 13:17:46,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:46,393 INFO L495 AbstractCegarLoop]: Abstraction has 54772 states and 62134 transitions. [2023-12-21 13:17:46,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 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) [2023-12-21 13:17:46,393 INFO L276 IsEmpty]: Start isEmpty. Operand 54772 states and 62134 transitions. [2023-12-21 13:17:46,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 13:17:46,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:46,397 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:46,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-21 13:17:46,398 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)] === [2023-12-21 13:17:46,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:46,398 INFO L85 PathProgramCache]: Analyzing trace with hash -102568939, now seen corresponding path program 1 times [2023-12-21 13:17:46,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:46,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719929113] [2023-12-21 13:17:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:46,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:46,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719929113] [2023-12-21 13:17:46,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719929113] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:17:46,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049263549] [2023-12-21 13:17:46,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:46,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:17:46,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:17:46,808 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) [2023-12-21 13:17:46,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 13:17:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:47,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 13:17:47,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:17:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:47,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:17:47,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049263549] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:47,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:17:47,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10] total 20 [2023-12-21 13:17:47,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324438461] [2023-12-21 13:17:47,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:47,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 13:17:47,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:47,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 13:17:47,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-12-21 13:17:47,363 INFO L87 Difference]: Start difference. First operand 54772 states and 62134 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 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) [2023-12-21 13:17:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:47,887 INFO L93 Difference]: Finished difference Result 57788 states and 65612 transitions. [2023-12-21 13:17:47,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:17:47,888 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 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 [2023-12-21 13:17:47,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:47,936 INFO L225 Difference]: With dead ends: 57788 [2023-12-21 13:17:47,936 INFO L226 Difference]: Without dead ends: 53224 [2023-12-21 13:17:47,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2023-12-21 13:17:47,947 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 821 mSDsluCounter, 3930 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 4494 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:47,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 4494 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:17:47,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53224 states. [2023-12-21 13:17:48,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53224 to 51820. [2023-12-21 13:17:48,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51820 states, 51819 states have (on average 1.133811922267894) internal successors, (58753), 51819 states have internal predecessors, (58753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:48,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51820 states to 51820 states and 58753 transitions. [2023-12-21 13:17:48,399 INFO L78 Accepts]: Start accepts. Automaton has 51820 states and 58753 transitions. Word has length 110 [2023-12-21 13:17:48,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:48,399 INFO L495 AbstractCegarLoop]: Abstraction has 51820 states and 58753 transitions. [2023-12-21 13:17:48,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 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) [2023-12-21 13:17:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 51820 states and 58753 transitions. [2023-12-21 13:17:48,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 13:17:48,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:48,403 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:48,410 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-21 13:17:48,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:17:48,610 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)] === [2023-12-21 13:17:48,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:48,610 INFO L85 PathProgramCache]: Analyzing trace with hash 387980509, now seen corresponding path program 1 times [2023-12-21 13:17:48,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:48,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209878951] [2023-12-21 13:17:48,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:48,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:49,034 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:49,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:49,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209878951] [2023-12-21 13:17:49,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209878951] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:17:49,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116184056] [2023-12-21 13:17:49,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:49,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:17:49,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:17:49,046 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) [2023-12-21 13:17:49,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 13:17:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:49,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 13:17:49,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:17:49,708 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:49,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:17:49,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116184056] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:49,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:17:49,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2023-12-21 13:17:49,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383960033] [2023-12-21 13:17:49,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:49,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 13:17:49,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:49,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 13:17:49,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2023-12-21 13:17:49,710 INFO L87 Difference]: Start difference. First operand 51820 states and 58753 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:50,259 INFO L93 Difference]: Finished difference Result 65247 states and 74109 transitions. [2023-12-21 13:17:50,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 13:17:50,259 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 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 [2023-12-21 13:17:50,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:50,305 INFO L225 Difference]: With dead ends: 65247 [2023-12-21 13:17:50,305 INFO L226 Difference]: Without dead ends: 54330 [2023-12-21 13:17:50,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2023-12-21 13:17:50,310 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 934 mSDsluCounter, 3226 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 3734 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:50,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 3734 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:17:50,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54330 states. [2023-12-21 13:17:50,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54330 to 53574. [2023-12-21 13:17:50,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53574 states, 53573 states have (on average 1.1330520971384839) internal successors, (60701), 53573 states have internal predecessors, (60701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:50,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53574 states to 53574 states and 60701 transitions. [2023-12-21 13:17:50,729 INFO L78 Accepts]: Start accepts. Automaton has 53574 states and 60701 transitions. Word has length 111 [2023-12-21 13:17:50,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:50,729 INFO L495 AbstractCegarLoop]: Abstraction has 53574 states and 60701 transitions. [2023-12-21 13:17:50,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 53574 states and 60701 transitions. [2023-12-21 13:17:50,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 13:17:50,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:50,734 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:50,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-21 13:17:50,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:17:50,939 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)] === [2023-12-21 13:17:50,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:50,940 INFO L85 PathProgramCache]: Analyzing trace with hash -124923404, now seen corresponding path program 1 times [2023-12-21 13:17:50,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:50,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80107467] [2023-12-21 13:17:50,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:50,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:51,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:51,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80107467] [2023-12-21 13:17:51,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80107467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:51,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:17:51,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:17:51,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407142104] [2023-12-21 13:17:51,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:51,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:17:51,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:51,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:17:51,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:17:51,400 INFO L87 Difference]: Start difference. First operand 53574 states and 60701 transitions. Second operand has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:53,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:53,184 INFO L93 Difference]: Finished difference Result 80441 states and 91791 transitions. [2023-12-21 13:17:53,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-21 13:17:53,185 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 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 [2023-12-21 13:17:53,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:53,259 INFO L225 Difference]: With dead ends: 80441 [2023-12-21 13:17:53,259 INFO L226 Difference]: Without dead ends: 77369 [2023-12-21 13:17:53,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=321, Invalid=1239, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:17:53,280 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 2183 mSDsluCounter, 3400 mSDsCounter, 0 mSdLazyCounter, 2965 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:53,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 3846 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2965 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 13:17:53,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77369 states. [2023-12-21 13:17:53,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77369 to 53492. [2023-12-21 13:17:53,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53492 states, 53491 states have (on average 1.133143893365239) internal successors, (60613), 53491 states have internal predecessors, (60613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:53,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53492 states to 53492 states and 60613 transitions. [2023-12-21 13:17:53,870 INFO L78 Accepts]: Start accepts. Automaton has 53492 states and 60613 transitions. Word has length 111 [2023-12-21 13:17:53,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:53,870 INFO L495 AbstractCegarLoop]: Abstraction has 53492 states and 60613 transitions. [2023-12-21 13:17:53,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:53,870 INFO L276 IsEmpty]: Start isEmpty. Operand 53492 states and 60613 transitions. [2023-12-21 13:17:53,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 13:17:53,874 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:53,874 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:53,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-21 13:17:53,875 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)] === [2023-12-21 13:17:53,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:53,875 INFO L85 PathProgramCache]: Analyzing trace with hash 412605956, now seen corresponding path program 1 times [2023-12-21 13:17:53,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:53,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107988299] [2023-12-21 13:17:53,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:53,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:54,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:54,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107988299] [2023-12-21 13:17:54,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107988299] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:17:54,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042616411] [2023-12-21 13:17:54,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:54,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:17:54,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:17:54,393 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) [2023-12-21 13:17:54,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 13:17:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:54,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 13:17:54,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:17:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:55,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:17:55,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:55,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042616411] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:17:55,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:17:55,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 10] total 31 [2023-12-21 13:17:55,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279313508] [2023-12-21 13:17:55,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:17:55,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-21 13:17:55,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:55,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-21 13:17:55,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2023-12-21 13:17:55,373 INFO L87 Difference]: Start difference. First operand 53492 states and 60613 transitions. Second operand has 31 states, 31 states have (on average 9.64516129032258) internal successors, (299), 31 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:56,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:56,682 INFO L93 Difference]: Finished difference Result 72509 states and 82123 transitions. [2023-12-21 13:17:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:17:56,683 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.64516129032258) internal successors, (299), 31 states have internal predecessors, (299), 0 states have call successors, (0), 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 [2023-12-21 13:17:56,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:56,745 INFO L225 Difference]: With dead ends: 72509 [2023-12-21 13:17:56,745 INFO L226 Difference]: Without dead ends: 67858 [2023-12-21 13:17:56,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=323, Invalid=1483, Unknown=0, NotChecked=0, Total=1806 [2023-12-21 13:17:56,765 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 2752 mSDsluCounter, 8638 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2752 SdHoareTripleChecker+Valid, 9237 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:56,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2752 Valid, 9237 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 13:17:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67858 states. [2023-12-21 13:17:57,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67858 to 53459. [2023-12-21 13:17:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53459 states, 53458 states have (on average 1.1331325526581615) internal successors, (60575), 53458 states have internal predecessors, (60575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53459 states to 53459 states and 60575 transitions. [2023-12-21 13:17:57,312 INFO L78 Accepts]: Start accepts. Automaton has 53459 states and 60575 transitions. Word has length 111 [2023-12-21 13:17:57,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:57,312 INFO L495 AbstractCegarLoop]: Abstraction has 53459 states and 60575 transitions. [2023-12-21 13:17:57,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.64516129032258) internal successors, (299), 31 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 53459 states and 60575 transitions. [2023-12-21 13:17:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 13:17:57,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:57,316 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:57,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 13:17:57,522 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,SelfDestructingSolverStorable69 [2023-12-21 13:17:57,526 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)] === [2023-12-21 13:17:57,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:57,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1914108623, now seen corresponding path program 1 times [2023-12-21 13:17:57,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:57,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88949572] [2023-12-21 13:17:57,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:57,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:57,571 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:17:57,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:57,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88949572] [2023-12-21 13:17:57,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88949572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:17:57,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:17:57,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 13:17:57,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139613692] [2023-12-21 13:17:57,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:17:57,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 13:17:57,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:17:57,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 13:17:57,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 13:17:57,572 INFO L87 Difference]: Start difference. First operand 53459 states and 60575 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:57,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:17:57,918 INFO L93 Difference]: Finished difference Result 71286 states and 80963 transitions. [2023-12-21 13:17:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 13:17:57,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 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 112 [2023-12-21 13:17:57,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:17:57,975 INFO L225 Difference]: With dead ends: 71286 [2023-12-21 13:17:57,975 INFO L226 Difference]: Without dead ends: 59686 [2023-12-21 13:17:57,995 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 [2023-12-21 13:17:57,995 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 424 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:17:57,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 861 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 13:17:58,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59686 states. [2023-12-21 13:17:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59686 to 53075. [2023-12-21 13:17:58,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53075 states, 53074 states have (on average 1.1327768775671703) internal successors, (60121), 53074 states have internal predecessors, (60121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:58,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53075 states to 53075 states and 60121 transitions. [2023-12-21 13:17:58,613 INFO L78 Accepts]: Start accepts. Automaton has 53075 states and 60121 transitions. Word has length 112 [2023-12-21 13:17:58,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:17:58,613 INFO L495 AbstractCegarLoop]: Abstraction has 53075 states and 60121 transitions. [2023-12-21 13:17:58,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:17:58,613 INFO L276 IsEmpty]: Start isEmpty. Operand 53075 states and 60121 transitions. [2023-12-21 13:17:58,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-21 13:17:58,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:17:58,774 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:17:58,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-21 13:17:58,775 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)] === [2023-12-21 13:17:58,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:17:58,775 INFO L85 PathProgramCache]: Analyzing trace with hash 912655344, now seen corresponding path program 1 times [2023-12-21 13:17:58,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:17:58,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100119205] [2023-12-21 13:17:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:58,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:17:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:17:59,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:17:59,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100119205] [2023-12-21 13:17:59,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100119205] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:17:59,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147189645] [2023-12-21 13:17:59,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:17:59,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:17:59,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:17:59,174 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) [2023-12-21 13:17:59,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 13:17:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:17:59,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 13:17:59,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:18:00,035 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:00,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:18:00,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147189645] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:18:00,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:18:00,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 23 [2023-12-21 13:18:00,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099848425] [2023-12-21 13:18:00,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:18:00,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 13:18:00,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:18:00,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 13:18:00,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2023-12-21 13:18:00,037 INFO L87 Difference]: Start difference. First operand 53075 states and 60121 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:00,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:18:00,652 INFO L93 Difference]: Finished difference Result 68044 states and 77278 transitions. [2023-12-21 13:18:00,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-21 13:18:00,652 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2023-12-21 13:18:00,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:18:00,722 INFO L225 Difference]: With dead ends: 68044 [2023-12-21 13:18:00,722 INFO L226 Difference]: Without dead ends: 57226 [2023-12-21 13:18:00,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2023-12-21 13:18:00,744 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1002 mSDsluCounter, 3828 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 4430 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:18:00,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 4430 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:18:00,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57226 states. [2023-12-21 13:18:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57226 to 52023. [2023-12-21 13:18:01,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52023 states, 52022 states have (on average 1.1317711737341893) internal successors, (58877), 52022 states have internal predecessors, (58877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:01,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52023 states to 52023 states and 58877 transitions. [2023-12-21 13:18:01,381 INFO L78 Accepts]: Start accepts. Automaton has 52023 states and 58877 transitions. Word has length 112 [2023-12-21 13:18:01,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:18:01,382 INFO L495 AbstractCegarLoop]: Abstraction has 52023 states and 58877 transitions. [2023-12-21 13:18:01,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:01,382 INFO L276 IsEmpty]: Start isEmpty. Operand 52023 states and 58877 transitions. [2023-12-21 13:18:01,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 13:18:01,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:18:01,388 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:18:01,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-21 13:18:01,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:18:01,596 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)] === [2023-12-21 13:18:01,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:18:01,597 INFO L85 PathProgramCache]: Analyzing trace with hash -282057721, now seen corresponding path program 1 times [2023-12-21 13:18:01,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:18:01,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109275505] [2023-12-21 13:18:01,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:01,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:18:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:02,084 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:02,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:18:02,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109275505] [2023-12-21 13:18:02,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109275505] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:18:02,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568742305] [2023-12-21 13:18:02,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:02,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:18:02,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:18:02,086 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) [2023-12-21 13:18:02,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 13:18:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:02,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-21 13:18:02,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:18:04,464 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:18:04,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:18:04,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568742305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:18:04,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:18:04,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [13] total 30 [2023-12-21 13:18:04,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533633530] [2023-12-21 13:18:04,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:18:04,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 13:18:04,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:18:04,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 13:18:04,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2023-12-21 13:18:04,465 INFO L87 Difference]: Start difference. First operand 52023 states and 58877 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 18 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) [2023-12-21 13:18:06,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:18:06,194 INFO L93 Difference]: Finished difference Result 81355 states and 92177 transitions. [2023-12-21 13:18:06,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:18:06,195 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 18 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 113 [2023-12-21 13:18:06,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:18:06,270 INFO L225 Difference]: With dead ends: 81355 [2023-12-21 13:18:06,270 INFO L226 Difference]: Without dead ends: 78175 [2023-12-21 13:18:06,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=179, Invalid=1381, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:18:06,291 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 2139 mSDsluCounter, 4536 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 5031 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:18:06,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 5031 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2048 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 13:18:06,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78175 states. [2023-12-21 13:18:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78175 to 51950. [2023-12-21 13:18:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51950 states, 51949 states have (on average 1.1316675970663534) internal successors, (58789), 51949 states have internal predecessors, (58789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:06,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51950 states to 51950 states and 58789 transitions. [2023-12-21 13:18:06,899 INFO L78 Accepts]: Start accepts. Automaton has 51950 states and 58789 transitions. Word has length 113 [2023-12-21 13:18:06,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:18:06,899 INFO L495 AbstractCegarLoop]: Abstraction has 51950 states and 58789 transitions. [2023-12-21 13:18:06,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 18 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) [2023-12-21 13:18:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 51950 states and 58789 transitions. [2023-12-21 13:18:06,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 13:18:06,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:18:06,903 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:18:06,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-12-21 13:18:07,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:18:07,109 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)] === [2023-12-21 13:18:07,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:18:07,109 INFO L85 PathProgramCache]: Analyzing trace with hash 433586981, now seen corresponding path program 1 times [2023-12-21 13:18:07,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:18:07,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751930987] [2023-12-21 13:18:07,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:07,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:18:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:07,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:18:07,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751930987] [2023-12-21 13:18:07,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751930987] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:18:07,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979281218] [2023-12-21 13:18:07,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:07,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:18:07,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:18:07,639 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) [2023-12-21 13:18:07,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 13:18:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:07,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 13:18:07,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:18:08,308 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:08,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:18:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:08,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979281218] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:18:08,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:18:08,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 32 [2023-12-21 13:18:08,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801840150] [2023-12-21 13:18:08,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:18:08,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-21 13:18:08,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:18:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-21 13:18:08,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=905, Unknown=0, NotChecked=0, Total=992 [2023-12-21 13:18:08,830 INFO L87 Difference]: Start difference. First operand 51950 states and 58789 transitions. Second operand has 32 states, 32 states have (on average 9.78125) internal successors, (313), 32 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) [2023-12-21 13:18:35,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:18:35,132 INFO L93 Difference]: Finished difference Result 162144 states and 183065 transitions. [2023-12-21 13:18:35,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2023-12-21 13:18:35,133 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.78125) internal successors, (313), 32 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 113 [2023-12-21 13:18:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:18:35,287 INFO L225 Difference]: With dead ends: 162144 [2023-12-21 13:18:35,287 INFO L226 Difference]: Without dead ends: 158514 [2023-12-21 13:18:35,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45494 ImplicationChecksByTransitivity, 20.0s TimeCoverageRelationStatistics Valid=13293, Invalid=97263, Unknown=0, NotChecked=0, Total=110556 [2023-12-21 13:18:35,320 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 11902 mSDsluCounter, 9668 mSDsCounter, 0 mSdLazyCounter, 10076 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11902 SdHoareTripleChecker+Valid, 10207 SdHoareTripleChecker+Invalid, 10347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 10076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:18:35,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11902 Valid, 10207 Invalid, 10347 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [271 Valid, 10076 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-21 13:18:35,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158514 states. [2023-12-21 13:18:36,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158514 to 55415. [2023-12-21 13:18:36,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55415 states, 55414 states have (on average 1.1326560075071281) internal successors, (62765), 55414 states have internal predecessors, (62765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:36,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55415 states to 55415 states and 62765 transitions. [2023-12-21 13:18:36,194 INFO L78 Accepts]: Start accepts. Automaton has 55415 states and 62765 transitions. Word has length 113 [2023-12-21 13:18:36,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:18:36,194 INFO L495 AbstractCegarLoop]: Abstraction has 55415 states and 62765 transitions. [2023-12-21 13:18:36,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.78125) internal successors, (313), 32 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) [2023-12-21 13:18:36,194 INFO L276 IsEmpty]: Start isEmpty. Operand 55415 states and 62765 transitions. [2023-12-21 13:18:36,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 13:18:36,198 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:18:36,198 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:18:36,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 13:18:36,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:18:36,404 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)] === [2023-12-21 13:18:36,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:18:36,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1272882730, now seen corresponding path program 1 times [2023-12-21 13:18:36,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:18:36,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245784931] [2023-12-21 13:18:36,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:36,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:18:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:18:36,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:18:36,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245784931] [2023-12-21 13:18:36,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245784931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:18:36,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:18:36,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 13:18:36,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905531674] [2023-12-21 13:18:36,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:18:36,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 13:18:36,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:18:36,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 13:18:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-21 13:18:36,855 INFO L87 Difference]: Start difference. First operand 55415 states and 62765 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:18:37,364 INFO L93 Difference]: Finished difference Result 70207 states and 79604 transitions. [2023-12-21 13:18:37,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 13:18:37,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 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 114 [2023-12-21 13:18:37,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:18:37,427 INFO L225 Difference]: With dead ends: 70207 [2023-12-21 13:18:37,428 INFO L226 Difference]: Without dead ends: 63090 [2023-12-21 13:18:37,448 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 [2023-12-21 13:18:37,448 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1461 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:18:37,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 1424 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:18:37,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63090 states. [2023-12-21 13:18:37,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63090 to 55415. [2023-12-21 13:18:37,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55415 states, 55414 states have (on average 1.132583823582488) internal successors, (62761), 55414 states have internal predecessors, (62761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55415 states to 55415 states and 62761 transitions. [2023-12-21 13:18:37,941 INFO L78 Accepts]: Start accepts. Automaton has 55415 states and 62761 transitions. Word has length 114 [2023-12-21 13:18:37,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:18:37,941 INFO L495 AbstractCegarLoop]: Abstraction has 55415 states and 62761 transitions. [2023-12-21 13:18:37,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 7 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 55415 states and 62761 transitions. [2023-12-21 13:18:37,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 13:18:37,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:18:37,945 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:18:37,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2023-12-21 13:18:37,946 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)] === [2023-12-21 13:18:37,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:18:37,946 INFO L85 PathProgramCache]: Analyzing trace with hash -758772836, now seen corresponding path program 1 times [2023-12-21 13:18:37,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:18:37,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814603371] [2023-12-21 13:18:37,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:37,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:18:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:39,137 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:39,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:18:39,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814603371] [2023-12-21 13:18:39,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814603371] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:18:39,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638290302] [2023-12-21 13:18:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:39,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:18:39,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:18:39,139 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) [2023-12-21 13:18:39,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 13:18:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:39,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-21 13:18:39,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:18:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:18:40,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:18:40,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638290302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:18:40,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:18:40,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [23] total 41 [2023-12-21 13:18:40,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867608053] [2023-12-21 13:18:40,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:18:40,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-21 13:18:40,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:18:40,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-21 13:18:40,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1450, Unknown=0, NotChecked=0, Total=1640 [2023-12-21 13:18:40,960 INFO L87 Difference]: Start difference. First operand 55415 states and 62761 transitions. Second operand has 20 states, 20 states have (on average 5.45) internal successors, (109), 19 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:42,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:18:42,644 INFO L93 Difference]: Finished difference Result 89490 states and 101547 transitions. [2023-12-21 13:18:42,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 13:18:42,644 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 19 states have internal predecessors, (109), 0 states have call successors, (0), 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 115 [2023-12-21 13:18:42,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:18:42,779 INFO L225 Difference]: With dead ends: 89490 [2023-12-21 13:18:42,779 INFO L226 Difference]: Without dead ends: 82305 [2023-12-21 13:18:42,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=338, Invalid=2014, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 13:18:42,784 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 1286 mSDsluCounter, 4988 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 5511 SdHoareTripleChecker+Invalid, 2266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:18:42,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 5511 Invalid, 2266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 13:18:42,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82305 states. [2023-12-21 13:18:43,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82305 to 55415. [2023-12-21 13:18:43,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55415 states, 55414 states have (on average 1.1325657776013283) internal successors, (62760), 55414 states have internal predecessors, (62760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55415 states to 55415 states and 62760 transitions. [2023-12-21 13:18:43,289 INFO L78 Accepts]: Start accepts. Automaton has 55415 states and 62760 transitions. Word has length 115 [2023-12-21 13:18:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:18:43,290 INFO L495 AbstractCegarLoop]: Abstraction has 55415 states and 62760 transitions. [2023-12-21 13:18:43,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 19 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:43,290 INFO L276 IsEmpty]: Start isEmpty. Operand 55415 states and 62760 transitions. [2023-12-21 13:18:43,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 13:18:43,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:18:43,294 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:18:43,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-21 13:18:43,498 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 [2023-12-21 13:18:43,499 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)] === [2023-12-21 13:18:43,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:18:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash 980945744, now seen corresponding path program 1 times [2023-12-21 13:18:43,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:18:43,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624655703] [2023-12-21 13:18:43,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:43,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:18:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:44,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:18:44,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624655703] [2023-12-21 13:18:44,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624655703] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:18:44,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637375221] [2023-12-21 13:18:44,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:44,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:18:44,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:18:44,206 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) [2023-12-21 13:18:44,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-21 13:18:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:44,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 13:18:44,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:18:45,131 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:45,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:18:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:46,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637375221] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:18:46,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:18:46,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 36 [2023-12-21 13:18:46,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145738298] [2023-12-21 13:18:46,173 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:18:46,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-21 13:18:46,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:18:46,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-21 13:18:46,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1197, Unknown=0, NotChecked=0, Total=1332 [2023-12-21 13:18:46,174 INFO L87 Difference]: Start difference. First operand 55415 states and 62760 transitions. Second operand has 37 states, 37 states have (on average 8.567567567567568) internal successors, (317), 36 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:55,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:18:55,696 INFO L93 Difference]: Finished difference Result 112872 states and 127528 transitions. [2023-12-21 13:18:55,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2023-12-21 13:18:55,696 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 8.567567567567568) internal successors, (317), 36 states have internal predecessors, (317), 0 states have call successors, (0), 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 115 [2023-12-21 13:18:55,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:18:55,803 INFO L225 Difference]: With dead ends: 112872 [2023-12-21 13:18:55,803 INFO L226 Difference]: Without dead ends: 108911 [2023-12-21 13:18:55,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7370 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=4042, Invalid=19520, Unknown=0, NotChecked=0, Total=23562 [2023-12-21 13:18:55,831 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 7429 mSDsluCounter, 10143 mSDsCounter, 0 mSdLazyCounter, 10495 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7429 SdHoareTripleChecker+Valid, 10795 SdHoareTripleChecker+Invalid, 10754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 10495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:18:55,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7429 Valid, 10795 Invalid, 10754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 10495 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-21 13:18:55,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108911 states. [2023-12-21 13:18:56,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108911 to 57686. [2023-12-21 13:18:56,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57686 states, 57685 states have (on average 1.1319233769610817) internal successors, (65295), 57685 states have internal predecessors, (65295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:56,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57686 states to 57686 states and 65295 transitions. [2023-12-21 13:18:56,693 INFO L78 Accepts]: Start accepts. Automaton has 57686 states and 65295 transitions. Word has length 115 [2023-12-21 13:18:56,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:18:56,693 INFO L495 AbstractCegarLoop]: Abstraction has 57686 states and 65295 transitions. [2023-12-21 13:18:56,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 8.567567567567568) internal successors, (317), 36 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:18:56,693 INFO L276 IsEmpty]: Start isEmpty. Operand 57686 states and 65295 transitions. [2023-12-21 13:18:56,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 13:18:56,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:18:56,698 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:18:56,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-21 13:18:56,903 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 [2023-12-21 13:18:56,905 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)] === [2023-12-21 13:18:56,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:18:56,906 INFO L85 PathProgramCache]: Analyzing trace with hash 531325149, now seen corresponding path program 1 times [2023-12-21 13:18:56,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:18:56,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472240107] [2023-12-21 13:18:56,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:56,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:18:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:57,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:57,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:18:57,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472240107] [2023-12-21 13:18:57,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472240107] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:18:57,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437258013] [2023-12-21 13:18:57,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:18:57,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:18:57,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:18:57,838 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) [2023-12-21 13:18:57,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-21 13:18:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:18:58,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-21 13:18:58,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:18:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:58,693 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:18:59,084 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:18:59,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437258013] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:18:59,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:18:59,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 10] total 36 [2023-12-21 13:18:59,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517935212] [2023-12-21 13:18:59,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:18:59,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-21 13:18:59,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:18:59,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-21 13:18:59,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1154, Unknown=0, NotChecked=0, Total=1260 [2023-12-21 13:18:59,085 INFO L87 Difference]: Start difference. First operand 57686 states and 65295 transitions. Second operand has 36 states, 36 states have (on average 8.0) internal successors, (288), 36 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:03,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:19:03,778 INFO L93 Difference]: Finished difference Result 91020 states and 102801 transitions. [2023-12-21 13:19:03,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-12-21 13:19:03,779 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.0) internal successors, (288), 36 states have internal predecessors, (288), 0 states have call successors, (0), 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 116 [2023-12-21 13:19:03,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:19:03,865 INFO L225 Difference]: With dead ends: 91020 [2023-12-21 13:19:03,866 INFO L226 Difference]: Without dead ends: 85804 [2023-12-21 13:19:03,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2614 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1693, Invalid=9437, Unknown=0, NotChecked=0, Total=11130 [2023-12-21 13:19:03,891 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 4982 mSDsluCounter, 15228 mSDsCounter, 0 mSdLazyCounter, 5462 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4982 SdHoareTripleChecker+Valid, 15951 SdHoareTripleChecker+Invalid, 5486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 5462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-21 13:19:03,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4982 Valid, 15951 Invalid, 5486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 5462 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-21 13:19:03,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85804 states. [2023-12-21 13:19:04,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85804 to 56978. [2023-12-21 13:19:04,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56978 states, 56977 states have (on average 1.1311932885199292) internal successors, (64452), 56977 states have internal predecessors, (64452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56978 states to 56978 states and 64452 transitions. [2023-12-21 13:19:04,566 INFO L78 Accepts]: Start accepts. Automaton has 56978 states and 64452 transitions. Word has length 116 [2023-12-21 13:19:04,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:19:04,566 INFO L495 AbstractCegarLoop]: Abstraction has 56978 states and 64452 transitions. [2023-12-21 13:19:04,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.0) internal successors, (288), 36 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:04,566 INFO L276 IsEmpty]: Start isEmpty. Operand 56978 states and 64452 transitions. [2023-12-21 13:19:04,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 13:19:04,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:19:04,578 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:19:04,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-21 13:19:04,782 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 [2023-12-21 13:19:04,783 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)] === [2023-12-21 13:19:04,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:19:04,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1994938046, now seen corresponding path program 1 times [2023-12-21 13:19:04,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:19:04,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170034945] [2023-12-21 13:19:04,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:19:04,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:19:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:19:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:19:05,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:19:05,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170034945] [2023-12-21 13:19:05,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170034945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:19:05,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:19:05,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-21 13:19:05,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134689281] [2023-12-21 13:19:05,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:19:05,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-21 13:19:05,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:19:05,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-21 13:19:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 13:19:05,220 INFO L87 Difference]: Start difference. First operand 56978 states and 64452 transitions. Second operand has 16 states, 16 states have (on average 7.25) internal successors, (116), 16 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:06,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:19:06,833 INFO L93 Difference]: Finished difference Result 90796 states and 103153 transitions. [2023-12-21 13:19:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-21 13:19:06,834 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.25) internal successors, (116), 16 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2023-12-21 13:19:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:19:06,919 INFO L225 Difference]: With dead ends: 90796 [2023-12-21 13:19:06,919 INFO L226 Difference]: Without dead ends: 83709 [2023-12-21 13:19:06,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=297, Invalid=1509, Unknown=0, NotChecked=0, Total=1806 [2023-12-21 13:19:06,943 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 1700 mSDsluCounter, 6622 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 7217 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-21 13:19:06,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 7217 Invalid, 1701 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-21 13:19:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83709 states. [2023-12-21 13:19:07,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83709 to 58365. [2023-12-21 13:19:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58365 states, 58364 states have (on average 1.1310910835446508) internal successors, (66015), 58364 states have internal predecessors, (66015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58365 states to 58365 states and 66015 transitions. [2023-12-21 13:19:07,702 INFO L78 Accepts]: Start accepts. Automaton has 58365 states and 66015 transitions. Word has length 116 [2023-12-21 13:19:07,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:19:07,702 INFO L495 AbstractCegarLoop]: Abstraction has 58365 states and 66015 transitions. [2023-12-21 13:19:07,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.25) internal successors, (116), 16 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:07,702 INFO L276 IsEmpty]: Start isEmpty. Operand 58365 states and 66015 transitions. [2023-12-21 13:19:07,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 13:19:07,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:19:07,707 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:19:07,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-12-21 13:19:07,708 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)] === [2023-12-21 13:19:07,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:19:07,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1088332203, now seen corresponding path program 1 times [2023-12-21 13:19:07,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:19:07,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434852700] [2023-12-21 13:19:07,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:19:07,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:19:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:19:08,122 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:19:08,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:19:08,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434852700] [2023-12-21 13:19:08,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434852700] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:19:08,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999293754] [2023-12-21 13:19:08,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:19:08,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:19:08,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:19:08,124 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) [2023-12-21 13:19:08,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-21 13:19:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:19:08,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 13:19:08,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:19:09,136 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:19:09,136 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:19:09,570 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:19:09,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999293754] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:19:09,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:19:09,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 11] total 30 [2023-12-21 13:19:09,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329452616] [2023-12-21 13:19:09,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:19:09,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-21 13:19:09,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:19:09,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-21 13:19:09,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=757, Unknown=0, NotChecked=0, Total=870 [2023-12-21 13:19:09,571 INFO L87 Difference]: Start difference. First operand 58365 states and 66015 transitions. Second operand has 30 states, 30 states have (on average 9.8) internal successors, (294), 30 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:10,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:19:10,609 INFO L93 Difference]: Finished difference Result 71995 states and 81765 transitions. [2023-12-21 13:19:10,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 13:19:10,609 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.8) internal successors, (294), 30 states have internal predecessors, (294), 0 states have call successors, (0), 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 116 [2023-12-21 13:19:10,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:19:10,670 INFO L225 Difference]: With dead ends: 71995 [2023-12-21 13:19:10,670 INFO L226 Difference]: Without dead ends: 66845 [2023-12-21 13:19:10,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 212 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=303, Invalid=1419, Unknown=0, NotChecked=0, Total=1722 [2023-12-21 13:19:10,689 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 1940 mSDsluCounter, 7098 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 7749 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-21 13:19:10,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 7749 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-21 13:19:10,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66845 states. [2023-12-21 13:19:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66845 to 58304. [2023-12-21 13:19:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58304 states, 58303 states have (on average 1.130988113819186) internal successors, (65940), 58303 states have internal predecessors, (65940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:11,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58304 states to 58304 states and 65940 transitions. [2023-12-21 13:19:11,355 INFO L78 Accepts]: Start accepts. Automaton has 58304 states and 65940 transitions. Word has length 116 [2023-12-21 13:19:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:19:11,355 INFO L495 AbstractCegarLoop]: Abstraction has 58304 states and 65940 transitions. [2023-12-21 13:19:11,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.8) internal successors, (294), 30 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:11,355 INFO L276 IsEmpty]: Start isEmpty. Operand 58304 states and 65940 transitions. [2023-12-21 13:19:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 13:19:11,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:19:11,359 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:19:11,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-21 13:19:11,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:19:11,565 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)] === [2023-12-21 13:19:11,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:19:11,566 INFO L85 PathProgramCache]: Analyzing trace with hash -901182759, now seen corresponding path program 1 times [2023-12-21 13:19:11,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:19:11,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682752166] [2023-12-21 13:19:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:19:11,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:19:11,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:19:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:19:11,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:19:11,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682752166] [2023-12-21 13:19:11,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682752166] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:19:11,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:19:11,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-21 13:19:11,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248360691] [2023-12-21 13:19:11,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:19:11,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 13:19:11,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:19:11,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 13:19:11,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-12-21 13:19:11,913 INFO L87 Difference]: Start difference. First operand 58304 states and 65940 transitions. Second operand has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 13 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:19:16,033 INFO L93 Difference]: Finished difference Result 104310 states and 118069 transitions. [2023-12-21 13:19:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-21 13:19:16,033 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 13 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2023-12-21 13:19:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:19:16,127 INFO L225 Difference]: With dead ends: 104310 [2023-12-21 13:19:16,127 INFO L226 Difference]: Without dead ends: 97121 [2023-12-21 13:19:16,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2729 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1493, Invalid=6517, Unknown=0, NotChecked=0, Total=8010 [2023-12-21 13:19:16,154 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 3191 mSDsluCounter, 3536 mSDsCounter, 0 mSdLazyCounter, 3345 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3191 SdHoareTripleChecker+Valid, 3999 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-21 13:19:16,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3191 Valid, 3999 Invalid, 3413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 3345 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-21 13:19:16,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97121 states. [2023-12-21 13:19:16,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97121 to 62544. [2023-12-21 13:19:16,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62544 states, 62543 states have (on average 1.1313975984522648) internal successors, (70761), 62543 states have internal predecessors, (70761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:17,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62544 states to 62544 states and 70761 transitions. [2023-12-21 13:19:17,045 INFO L78 Accepts]: Start accepts. Automaton has 62544 states and 70761 transitions. Word has length 116 [2023-12-21 13:19:17,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:19:17,045 INFO L495 AbstractCegarLoop]: Abstraction has 62544 states and 70761 transitions. [2023-12-21 13:19:17,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 13 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:17,045 INFO L276 IsEmpty]: Start isEmpty. Operand 62544 states and 70761 transitions. [2023-12-21 13:19:17,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 13:19:17,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:19:17,049 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:19:17,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2023-12-21 13:19:17,049 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)] === [2023-12-21 13:19:17,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:19:17,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1764200462, now seen corresponding path program 1 times [2023-12-21 13:19:17,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:19:17,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633041621] [2023-12-21 13:19:17,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:19:17,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:19:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:19:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:19:17,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:19:17,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633041621] [2023-12-21 13:19:17,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633041621] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:19:17,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:19:17,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-21 13:19:17,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854425061] [2023-12-21 13:19:17,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:19:17,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-21 13:19:17,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:19:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-21 13:19:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2023-12-21 13:19:17,562 INFO L87 Difference]: Start difference. First operand 62544 states and 70761 transitions. Second operand has 19 states, 19 states have (on average 6.105263157894737) internal successors, (116), 19 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:19:19,297 INFO L93 Difference]: Finished difference Result 91007 states and 103073 transitions. [2023-12-21 13:19:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-21 13:19:19,297 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.105263157894737) internal successors, (116), 19 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2023-12-21 13:19:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:19:19,378 INFO L225 Difference]: With dead ends: 91007 [2023-12-21 13:19:19,378 INFO L226 Difference]: Without dead ends: 83842 [2023-12-21 13:19:19,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2023-12-21 13:19:19,403 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 2230 mSDsluCounter, 7882 mSDsCounter, 0 mSdLazyCounter, 2542 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2230 SdHoareTripleChecker+Valid, 8522 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 13:19:19,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2230 Valid, 8522 Invalid, 2550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2542 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 13:19:19,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83842 states. [2023-12-21 13:19:19,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83842 to 61913. [2023-12-21 13:19:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61913 states, 61912 states have (on average 1.1312831115131154) internal successors, (70040), 61912 states have internal predecessors, (70040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:20,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61913 states to 61913 states and 70040 transitions. [2023-12-21 13:19:20,256 INFO L78 Accepts]: Start accepts. Automaton has 61913 states and 70040 transitions. Word has length 116 [2023-12-21 13:19:20,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:19:20,256 INFO L495 AbstractCegarLoop]: Abstraction has 61913 states and 70040 transitions. [2023-12-21 13:19:20,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.105263157894737) internal successors, (116), 19 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:19:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand 61913 states and 70040 transitions. [2023-12-21 13:19:20,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 13:19:20,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:19:20,260 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:19:20,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2023-12-21 13:19:20,260 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)] === [2023-12-21 13:19:20,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:19:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1509220714, now seen corresponding path program 1 times [2023-12-21 13:19:20,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:19:20,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683325789] [2023-12-21 13:19:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:19:20,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:19:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:19:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:19:20,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:19:20,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683325789] [2023-12-21 13:19:20,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683325789] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:19:20,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664119592] [2023-12-21 13:19:20,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:19:20,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:19:20,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:19:20,912 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) [2023-12-21 13:19:20,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-21 13:19:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:19:21,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-21 13:19:21,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:19:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:19:21,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:19:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:19:22,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664119592] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:19:22,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:19:22,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 12] total 42 [2023-12-21 13:19:22,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139688286] [2023-12-21 13:19:22,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:19:22,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-12-21 13:19:22,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:19:22,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-12-21 13:19:22,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1582, Unknown=0, NotChecked=0, Total=1722 [2023-12-21 13:19:22,832 INFO L87 Difference]: Start difference. First operand 61913 states and 70040 transitions. Second operand has 42 states, 42 states have (on average 7.9523809523809526) internal successors, (334), 42 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:04,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:20:04,604 INFO L93 Difference]: Finished difference Result 181323 states and 201871 transitions. [2023-12-21 13:20:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 535 states. [2023-12-21 13:20:04,605 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.9523809523809526) internal successors, (334), 42 states have internal predecessors, (334), 0 states have call successors, (0), 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 117 [2023-12-21 13:20:04,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:20:05,063 INFO L225 Difference]: With dead ends: 181323 [2023-12-21 13:20:05,064 INFO L226 Difference]: Without dead ends: 170814 [2023-12-21 13:20:05,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 573 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144773 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=28088, Invalid=301962, Unknown=0, NotChecked=0, Total=330050 [2023-12-21 13:20:05,124 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 18702 mSDsluCounter, 14605 mSDsCounter, 0 mSdLazyCounter, 14143 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18702 SdHoareTripleChecker+Valid, 15281 SdHoareTripleChecker+Invalid, 14850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 14143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:20:05,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18702 Valid, 15281 Invalid, 14850 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [707 Valid, 14143 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-21 13:20:05,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170814 states. [2023-12-21 13:20:06,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170814 to 60612. [2023-12-21 13:20:06,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60612 states, 60611 states have (on average 1.131774760357031) internal successors, (68598), 60611 states have internal predecessors, (68598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:06,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60612 states to 60612 states and 68598 transitions. [2023-12-21 13:20:06,448 INFO L78 Accepts]: Start accepts. Automaton has 60612 states and 68598 transitions. Word has length 117 [2023-12-21 13:20:06,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:20:06,448 INFO L495 AbstractCegarLoop]: Abstraction has 60612 states and 68598 transitions. [2023-12-21 13:20:06,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.9523809523809526) internal successors, (334), 42 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:06,448 INFO L276 IsEmpty]: Start isEmpty. Operand 60612 states and 68598 transitions. [2023-12-21 13:20:06,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 13:20:06,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:20:06,452 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:20:06,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-21 13:20:06,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:06,659 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)] === [2023-12-21 13:20:06,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:20:06,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1997573384, now seen corresponding path program 1 times [2023-12-21 13:20:06,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:20:06,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510144568] [2023-12-21 13:20:06,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:06,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:20:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:07,573 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:07,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:20:07,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510144568] [2023-12-21 13:20:07,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510144568] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:20:07,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323376516] [2023-12-21 13:20:07,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:07,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:07,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:20:07,574 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) [2023-12-21 13:20:07,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-21 13:20:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:07,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 13:20:07,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:20:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:08,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:20:08,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323376516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:20:08,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:20:08,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [20] total 30 [2023-12-21 13:20:08,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711716804] [2023-12-21 13:20:08,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:20:08,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 13:20:08,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:20:08,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 13:20:08,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=784, Unknown=0, NotChecked=0, Total=870 [2023-12-21 13:20:08,665 INFO L87 Difference]: Start difference. First operand 60612 states and 68598 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:09,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:20:09,395 INFO L93 Difference]: Finished difference Result 79707 states and 90258 transitions. [2023-12-21 13:20:09,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-21 13:20:09,395 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2023-12-21 13:20:09,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:20:09,460 INFO L225 Difference]: With dead ends: 79707 [2023-12-21 13:20:09,461 INFO L226 Difference]: Without dead ends: 68833 [2023-12-21 13:20:09,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=200, Invalid=1360, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 13:20:09,483 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 1733 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 2766 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:20:09,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 2766 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:20:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68833 states. [2023-12-21 13:20:10,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68833 to 60090. [2023-12-21 13:20:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60090 states, 60089 states have (on average 1.1320874036845345) internal successors, (68026), 60089 states have internal predecessors, (68026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:10,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60090 states to 60090 states and 68026 transitions. [2023-12-21 13:20:10,256 INFO L78 Accepts]: Start accepts. Automaton has 60090 states and 68026 transitions. Word has length 117 [2023-12-21 13:20:10,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:20:10,256 INFO L495 AbstractCegarLoop]: Abstraction has 60090 states and 68026 transitions. [2023-12-21 13:20:10,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 11 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:10,256 INFO L276 IsEmpty]: Start isEmpty. Operand 60090 states and 68026 transitions. [2023-12-21 13:20:10,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 13:20:10,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:20:10,261 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:20:10,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-12-21 13:20:10,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:10,468 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)] === [2023-12-21 13:20:10,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:20:10,469 INFO L85 PathProgramCache]: Analyzing trace with hash 491955578, now seen corresponding path program 1 times [2023-12-21 13:20:10,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:20:10,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587045224] [2023-12-21 13:20:10,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:10,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:20:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:10,797 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:10,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:20:10,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587045224] [2023-12-21 13:20:10,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587045224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:20:10,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:20:10,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 13:20:10,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457753915] [2023-12-21 13:20:10,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:20:10,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 13:20:10,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:20:10,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 13:20:10,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 13:20:10,798 INFO L87 Difference]: Start difference. First operand 60090 states and 68026 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:11,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:20:11,588 INFO L93 Difference]: Finished difference Result 75823 states and 86270 transitions. [2023-12-21 13:20:11,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-21 13:20:11,589 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2023-12-21 13:20:11,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:20:11,663 INFO L225 Difference]: With dead ends: 75823 [2023-12-21 13:20:11,664 INFO L226 Difference]: Without dead ends: 67316 [2023-12-21 13:20:11,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2023-12-21 13:20:11,686 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 985 mSDsluCounter, 5390 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 6081 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:20:11,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 6081 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:20:11,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67316 states. [2023-12-21 13:20:12,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67316 to 58315. [2023-12-21 13:20:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58315 states, 58314 states have (on average 1.1311863360428027) internal successors, (65964), 58314 states have internal predecessors, (65964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:12,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58315 states to 58315 states and 65964 transitions. [2023-12-21 13:20:12,360 INFO L78 Accepts]: Start accepts. Automaton has 58315 states and 65964 transitions. Word has length 117 [2023-12-21 13:20:12,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:20:12,360 INFO L495 AbstractCegarLoop]: Abstraction has 58315 states and 65964 transitions. [2023-12-21 13:20:12,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 58315 states and 65964 transitions. [2023-12-21 13:20:12,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 13:20:12,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:20:12,364 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:20:12,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2023-12-21 13:20:12,365 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)] === [2023-12-21 13:20:12,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:20:12,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1512788705, now seen corresponding path program 1 times [2023-12-21 13:20:12,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:20:12,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434330589] [2023-12-21 13:20:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:12,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:20:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:12,793 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:12,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:20:12,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434330589] [2023-12-21 13:20:12,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434330589] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:20:12,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055600845] [2023-12-21 13:20:12,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:12,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:12,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:20:12,919 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) [2023-12-21 13:20:12,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-21 13:20:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:13,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-21 13:20:13,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:20:13,722 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-21 13:20:13,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:20:13,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055600845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:20:13,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:20:13,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 23 [2023-12-21 13:20:13,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240794607] [2023-12-21 13:20:13,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:20:13,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 13:20:13,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:20:13,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 13:20:13,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2023-12-21 13:20:13,730 INFO L87 Difference]: Start difference. First operand 58315 states and 65964 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:14,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:20:14,289 INFO L93 Difference]: Finished difference Result 73620 states and 83532 transitions. [2023-12-21 13:20:14,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-21 13:20:14,290 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 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 117 [2023-12-21 13:20:14,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:20:14,354 INFO L225 Difference]: With dead ends: 73620 [2023-12-21 13:20:14,354 INFO L226 Difference]: Without dead ends: 70028 [2023-12-21 13:20:14,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=669, Unknown=0, NotChecked=0, Total=812 [2023-12-21 13:20:14,371 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 1467 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:20:14,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 3057 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 13:20:14,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70028 states. [2023-12-21 13:20:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70028 to 58169. [2023-12-21 13:20:14,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58169 states, 58168 states have (on average 1.1312061614633475) internal successors, (65800), 58168 states have internal predecessors, (65800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:15,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58169 states to 58169 states and 65800 transitions. [2023-12-21 13:20:15,089 INFO L78 Accepts]: Start accepts. Automaton has 58169 states and 65800 transitions. Word has length 117 [2023-12-21 13:20:15,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:20:15,090 INFO L495 AbstractCegarLoop]: Abstraction has 58169 states and 65800 transitions. [2023-12-21 13:20:15,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:15,090 INFO L276 IsEmpty]: Start isEmpty. Operand 58169 states and 65800 transitions. [2023-12-21 13:20:15,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 13:20:15,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:20:15,093 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:20:15,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-12-21 13:20:15,302 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,SelfDestructingSolverStorable85 [2023-12-21 13:20:15,302 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)] === [2023-12-21 13:20:15,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:20:15,303 INFO L85 PathProgramCache]: Analyzing trace with hash -145648004, now seen corresponding path program 1 times [2023-12-21 13:20:15,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:20:15,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104292091] [2023-12-21 13:20:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:15,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:20:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:15,644 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:15,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:20:15,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104292091] [2023-12-21 13:20:15,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104292091] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:20:15,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23581731] [2023-12-21 13:20:15,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:15,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:15,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:20:15,646 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) [2023-12-21 13:20:15,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-21 13:20:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:15,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-21 13:20:15,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:20:17,121 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:17,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:20:18,596 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:18,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23581731] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:20:18,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:20:18,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 16] total 43 [2023-12-21 13:20:18,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879741396] [2023-12-21 13:20:18,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:20:18,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-21 13:20:18,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:20:18,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-21 13:20:18,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1631, Unknown=0, NotChecked=0, Total=1806 [2023-12-21 13:20:18,598 INFO L87 Difference]: Start difference. First operand 58169 states and 65800 transitions. Second operand has 43 states, 43 states have (on average 7.441860465116279) internal successors, (320), 43 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:22,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:20:22,981 INFO L93 Difference]: Finished difference Result 132341 states and 150147 transitions. [2023-12-21 13:20:22,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-21 13:20:22,981 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 7.441860465116279) internal successors, (320), 43 states have internal predecessors, (320), 0 states have call successors, (0), 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 118 [2023-12-21 13:20:22,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:20:23,120 INFO L225 Difference]: With dead ends: 132341 [2023-12-21 13:20:23,120 INFO L226 Difference]: Without dead ends: 125855 [2023-12-21 13:20:23,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1519 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=768, Invalid=5238, Unknown=0, NotChecked=0, Total=6006 [2023-12-21 13:20:23,141 INFO L413 NwaCegarLoop]: 661 mSDtfsCounter, 3551 mSDsluCounter, 13247 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3551 SdHoareTripleChecker+Valid, 13908 SdHoareTripleChecker+Invalid, 3911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-21 13:20:23,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3551 Valid, 13908 Invalid, 3911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-21 13:20:23,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125855 states. [2023-12-21 13:20:23,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125855 to 58125. [2023-12-21 13:20:24,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58125 states, 58124 states have (on average 1.131185052646067) internal successors, (65749), 58124 states have internal predecessors, (65749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:24,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58125 states to 58125 states and 65749 transitions. [2023-12-21 13:20:24,098 INFO L78 Accepts]: Start accepts. Automaton has 58125 states and 65749 transitions. Word has length 118 [2023-12-21 13:20:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:20:24,098 INFO L495 AbstractCegarLoop]: Abstraction has 58125 states and 65749 transitions. [2023-12-21 13:20:24,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 7.441860465116279) internal successors, (320), 43 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:24,099 INFO L276 IsEmpty]: Start isEmpty. Operand 58125 states and 65749 transitions. [2023-12-21 13:20:24,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 13:20:24,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:20:24,103 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:20:24,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-12-21 13:20:24,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:24,311 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)] === [2023-12-21 13:20:24,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:20:24,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1615597171, now seen corresponding path program 1 times [2023-12-21 13:20:24,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:20:24,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090841814] [2023-12-21 13:20:24,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:24,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:20:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:25,327 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:25,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:20:25,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090841814] [2023-12-21 13:20:25,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090841814] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:20:25,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256218633] [2023-12-21 13:20:25,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:25,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:25,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:20:25,329 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) [2023-12-21 13:20:25,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-21 13:20:25,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:25,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-21 13:20:25,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:20:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:26,404 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 13:20:26,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256218633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:20:26,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 13:20:26,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [22] total 36 [2023-12-21 13:20:26,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183256931] [2023-12-21 13:20:26,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:20:26,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 13:20:26,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:20:26,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 13:20:26,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1154, Unknown=0, NotChecked=0, Total=1260 [2023-12-21 13:20:26,405 INFO L87 Difference]: Start difference. First operand 58125 states and 65749 transitions. Second operand has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 15 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:27,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:20:27,266 INFO L93 Difference]: Finished difference Result 71017 states and 80492 transitions. [2023-12-21 13:20:27,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:20:27,266 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 15 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2023-12-21 13:20:27,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:20:27,329 INFO L225 Difference]: With dead ends: 71017 [2023-12-21 13:20:27,329 INFO L226 Difference]: Without dead ends: 66463 [2023-12-21 13:20:27,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=222, Invalid=2228, Unknown=0, NotChecked=0, Total=2450 [2023-12-21 13:20:27,349 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 1306 mSDsluCounter, 5461 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 6048 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:20:27,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 6048 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 13:20:27,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66463 states. [2023-12-21 13:20:27,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66463 to 58164. [2023-12-21 13:20:27,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58164 states, 58163 states have (on average 1.131097089214793) internal successors, (65788), 58163 states have internal predecessors, (65788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58164 states to 58164 states and 65788 transitions. [2023-12-21 13:20:27,924 INFO L78 Accepts]: Start accepts. Automaton has 58164 states and 65788 transitions. Word has length 118 [2023-12-21 13:20:27,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:20:27,924 INFO L495 AbstractCegarLoop]: Abstraction has 58164 states and 65788 transitions. [2023-12-21 13:20:27,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.866666666666666) internal successors, (118), 15 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:27,924 INFO L276 IsEmpty]: Start isEmpty. Operand 58164 states and 65788 transitions. [2023-12-21 13:20:27,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 13:20:27,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:20:27,928 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:20:27,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-21 13:20:28,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:28,135 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)] === [2023-12-21 13:20:28,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:20:28,135 INFO L85 PathProgramCache]: Analyzing trace with hash 753357384, now seen corresponding path program 1 times [2023-12-21 13:20:28,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:20:28,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677189765] [2023-12-21 13:20:28,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:28,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:20:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:28,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:28,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:20:28,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677189765] [2023-12-21 13:20:28,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677189765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 13:20:28,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 13:20:28,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-21 13:20:28,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142661925] [2023-12-21 13:20:28,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 13:20:28,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 13:20:28,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:20:28,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 13:20:28,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-12-21 13:20:28,761 INFO L87 Difference]: Start difference. First operand 58164 states and 65788 transitions. Second operand has 18 states, 18 states have (on average 6.555555555555555) internal successors, (118), 18 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:30,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:20:30,126 INFO L93 Difference]: Finished difference Result 81709 states and 92460 transitions. [2023-12-21 13:20:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-21 13:20:30,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.555555555555555) internal successors, (118), 18 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2023-12-21 13:20:30,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:20:30,205 INFO L225 Difference]: With dead ends: 81709 [2023-12-21 13:20:30,205 INFO L226 Difference]: Without dead ends: 74500 [2023-12-21 13:20:30,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=777, Unknown=0, NotChecked=0, Total=930 [2023-12-21 13:20:30,225 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 2140 mSDsluCounter, 6346 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 6885 SdHoareTripleChecker+Invalid, 2208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 13:20:30,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 6885 Invalid, 2208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 13:20:30,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74500 states. [2023-12-21 13:20:30,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74500 to 55900. [2023-12-21 13:20:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55900 states, 55899 states have (on average 1.1305211184457682) internal successors, (63195), 55899 states have internal predecessors, (63195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55900 states to 55900 states and 63195 transitions. [2023-12-21 13:20:30,817 INFO L78 Accepts]: Start accepts. Automaton has 55900 states and 63195 transitions. Word has length 118 [2023-12-21 13:20:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:20:30,817 INFO L495 AbstractCegarLoop]: Abstraction has 55900 states and 63195 transitions. [2023-12-21 13:20:30,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.555555555555555) internal successors, (118), 18 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 55900 states and 63195 transitions. [2023-12-21 13:20:30,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-21 13:20:30,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:20:30,822 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:20:30,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2023-12-21 13:20:30,822 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)] === [2023-12-21 13:20:30,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:20:30,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2019748762, now seen corresponding path program 1 times [2023-12-21 13:20:30,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:20:30,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327239403] [2023-12-21 13:20:30,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:30,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:20:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:31,384 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:31,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:20:31,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327239403] [2023-12-21 13:20:31,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327239403] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:20:31,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388015654] [2023-12-21 13:20:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:31,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:31,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:20:31,386 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) [2023-12-21 13:20:31,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-21 13:20:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:31,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-21 13:20:31,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:20:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:32,972 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:20:34,385 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:34,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388015654] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:20:34,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:20:34,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 47 [2023-12-21 13:20:34,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009883906] [2023-12-21 13:20:34,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:20:34,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-12-21 13:20:34,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:20:34,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-12-21 13:20:34,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1951, Unknown=0, NotChecked=0, Total=2162 [2023-12-21 13:20:34,387 INFO L87 Difference]: Start difference. First operand 55900 states and 63195 transitions. Second operand has 47 states, 47 states have (on average 7.127659574468085) internal successors, (335), 47 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:40,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 13:20:40,582 INFO L93 Difference]: Finished difference Result 84293 states and 94931 transitions. [2023-12-21 13:20:40,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-12-21 13:20:40,582 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 7.127659574468085) internal successors, (335), 47 states have internal predecessors, (335), 0 states have call successors, (0), 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 119 [2023-12-21 13:20:40,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 13:20:40,649 INFO L225 Difference]: With dead ends: 84293 [2023-12-21 13:20:40,650 INFO L226 Difference]: Without dead ends: 77767 [2023-12-21 13:20:40,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2690 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1536, Invalid=8970, Unknown=0, NotChecked=0, Total=10506 [2023-12-21 13:20:40,655 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 4681 mSDsluCounter, 14864 mSDsCounter, 0 mSdLazyCounter, 3395 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4681 SdHoareTripleChecker+Valid, 15701 SdHoareTripleChecker+Invalid, 3439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 3395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 13:20:40,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4681 Valid, 15701 Invalid, 3439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 3395 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 13:20:40,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77767 states. [2023-12-21 13:20:41,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77767 to 55940. [2023-12-21 13:20:41,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55940 states, 55939 states have (on average 1.1304277874112874) internal successors, (63235), 55939 states have internal predecessors, (63235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55940 states to 55940 states and 63235 transitions. [2023-12-21 13:20:41,338 INFO L78 Accepts]: Start accepts. Automaton has 55940 states and 63235 transitions. Word has length 119 [2023-12-21 13:20:41,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 13:20:41,338 INFO L495 AbstractCegarLoop]: Abstraction has 55940 states and 63235 transitions. [2023-12-21 13:20:41,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 7.127659574468085) internal successors, (335), 47 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 13:20:41,339 INFO L276 IsEmpty]: Start isEmpty. Operand 55940 states and 63235 transitions. [2023-12-21 13:20:41,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-21 13:20:41,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 13:20:41,343 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 13:20:41,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-12-21 13:20:41,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:41,549 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)] === [2023-12-21 13:20:41,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 13:20:41,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1644003558, now seen corresponding path program 1 times [2023-12-21 13:20:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 13:20:41,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84451402] [2023-12-21 13:20:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 13:20:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:42,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 13:20:42,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84451402] [2023-12-21 13:20:42,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84451402] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 13:20:42,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105675329] [2023-12-21 13:20:42,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 13:20:42,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 13:20:42,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 13:20:42,200 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 13:20:42,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-12-21 13:20:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 13:20:42,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-21 13:20:42,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 13:20:46,835 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:46,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 13:20:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 13:20:53,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105675329] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 13:20:53,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 13:20:53,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 33, 31] total 78 [2023-12-21 13:20:53,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817455720] [2023-12-21 13:20:53,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 13:20:53,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-12-21 13:20:53,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 13:20:53,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-12-21 13:20:53,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=597, Invalid=5409, Unknown=0, NotChecked=0, Total=6006 [2023-12-21 13:20:53,263 INFO L87 Difference]: Start difference. First operand 55940 states and 63235 transitions. Second operand has 78 states, 78 states have (on average 4.3076923076923075) internal successors, (336), 78 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)