/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 03:09:49,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 03:09:49,487 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 03:09:49,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 03:09:49,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 03:09:49,513 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 03:09:49,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 03:09:49,513 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 03:09:49,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 03:09:49,517 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 03:09:49,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 03:09:49,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 03:09:49,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 03:09:49,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 03:09:49,519 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 03:09:49,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 03:09:49,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 03:09:49,519 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 03:09:49,519 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 03:09:49,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 03:09:49,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 03:09:49,521 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 03:09:49,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 03:09:49,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 03:09:49,521 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 03:09:49,521 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 03:09:49,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 03:09:49,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 03:09:49,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 03:09:49,522 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 03:09:49,523 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 03:09:49,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 03:09:49,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:09:49,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 03:09:49,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 03:09:49,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 03:09:49,524 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 03:09:49,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 03:09:49,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 03:09:49,524 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 03:09:49,524 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 03:09:49,525 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 03:09:49,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 03:09:49,525 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 03:09:49,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 03:09:49,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 03:09:49,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 03:09:49,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 03:09:49,741 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 03:09:49,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-20 03:09:50,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 03:09:50,985 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 03:09:50,985 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-20 03:09:51,000 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82669e75f/c949fede636b4ff0bd920eb26526b615/FLAG007753e0b [2023-12-20 03:09:51,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82669e75f/c949fede636b4ff0bd920eb26526b615 [2023-12-20 03:09:51,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 03:09:51,015 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 03:09:51,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 03:09:51,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 03:09:51,020 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 03:09:51,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ebf1dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51, skipping insertion in model container [2023-12-20 03:09:51,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 03:09:51,266 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2023-12-20 03:09:51,287 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2023-12-20 03:09:51,298 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2023-12-20 03:09:51,301 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2023-12-20 03:09:51,314 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2023-12-20 03:09:51,317 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2023-12-20 03:09:51,323 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2023-12-20 03:09:51,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:09:51,367 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 03:09:51,401 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[7117,7130] [2023-12-20 03:09:51,406 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9784,9797] [2023-12-20 03:09:51,409 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10875,10888] [2023-12-20 03:09:51,411 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11481,11494] [2023-12-20 03:09:51,414 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[12900,12913] [2023-12-20 03:09:51,416 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13506,13519] [2023-12-20 03:09:51,418 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.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14435,14448] [2023-12-20 03:09:51,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 03:09:51,443 INFO L206 MainTranslator]: Completed translation [2023-12-20 03:09:51,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51 WrapperNode [2023-12-20 03:09:51,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 03:09:51,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 03:09:51,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 03:09:51,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 03:09:51,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,507 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1044 [2023-12-20 03:09:51,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 03:09:51,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 03:09:51,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 03:09:51,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 03:09:51,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,554 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,577 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 03:09:51,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,617 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 03:09:51,631 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 03:09:51,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 03:09:51,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 03:09:51,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (1/1) ... [2023-12-20 03:09:51,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 03:09:51,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:09:51,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 03:09:51,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 03:09:51,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 03:09:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 03:09:51,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 03:09:51,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 03:09:51,815 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 03:09:51,817 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 03:09:52,459 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 03:09:52,484 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 03:09:52,484 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 03:09:52,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:09:52 BoogieIcfgContainer [2023-12-20 03:09:52,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 03:09:52,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 03:09:52,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 03:09:52,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 03:09:52,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 03:09:51" (1/3) ... [2023-12-20 03:09:52,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768e4e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:09:52, skipping insertion in model container [2023-12-20 03:09:52,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 03:09:51" (2/3) ... [2023-12-20 03:09:52,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768e4e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 03:09:52, skipping insertion in model container [2023-12-20 03:09:52,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 03:09:52" (3/3) ... [2023-12-20 03:09:52,490 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-20 03:09:52,502 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 03:09:52,503 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-20 03:09:52,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 03:09:52,542 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;@43d064df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 03:09:52,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-20 03:09:52,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 204 states, 196 states have (on average 1.8316326530612246) internal successors, (359), 203 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:52,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-20 03:09:52,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:52,558 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] [2023-12-20 03:09:52,559 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:52,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:52,563 INFO L85 PathProgramCache]: Analyzing trace with hash -114756949, now seen corresponding path program 1 times [2023-12-20 03:09:52,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:52,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265180442] [2023-12-20 03:09:52,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:52,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:52,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:52,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265180442] [2023-12-20 03:09:52,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265180442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:52,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:52,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:09:52,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33795120] [2023-12-20 03:09:52,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:52,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:09:52,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:52,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:09:52,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:09:52,956 INFO L87 Difference]: Start difference. First operand has 204 states, 196 states have (on average 1.8316326530612246) internal successors, (359), 203 states have internal predecessors, (359), 0 states have call successors, (0), 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 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:53,173 INFO L93 Difference]: Finished difference Result 333 states and 563 transitions. [2023-12-20 03:09:53,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:09:53,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-20 03:09:53,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:53,182 INFO L225 Difference]: With dead ends: 333 [2023-12-20 03:09:53,182 INFO L226 Difference]: Without dead ends: 182 [2023-12-20 03:09:53,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:09:53,187 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 849 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:53,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 238 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:09:53,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-20 03:09:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-12-20 03:09:53,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 175 states have (on average 1.28) internal successors, (224), 181 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 224 transitions. [2023-12-20 03:09:53,224 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 224 transitions. Word has length 45 [2023-12-20 03:09:53,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:53,224 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 224 transitions. [2023-12-20 03:09:53,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,224 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 224 transitions. [2023-12-20 03:09:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-20 03:09:53,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:53,230 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] [2023-12-20 03:09:53,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 03:09:53,230 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:53,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:53,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1679415330, now seen corresponding path program 1 times [2023-12-20 03:09:53,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:53,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055164762] [2023-12-20 03:09:53,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:53,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:53,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:53,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:53,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055164762] [2023-12-20 03:09:53,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055164762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:53,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:53,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:09:53,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315873898] [2023-12-20 03:09:53,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:53,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:09:53,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:53,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:09:53,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:09:53,421 INFO L87 Difference]: Start difference. First operand 182 states and 224 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:53,545 INFO L93 Difference]: Finished difference Result 305 states and 386 transitions. [2023-12-20 03:09:53,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:09:53,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2023-12-20 03:09:53,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:53,550 INFO L225 Difference]: With dead ends: 305 [2023-12-20 03:09:53,550 INFO L226 Difference]: Without dead ends: 163 [2023-12-20 03:09:53,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:09:53,553 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 579 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:53,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 126 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:09:53,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-12-20 03:09:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-12-20 03:09:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 156 states have (on average 1.294871794871795) internal successors, (202), 162 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 202 transitions. [2023-12-20 03:09:53,559 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 202 transitions. Word has length 46 [2023-12-20 03:09:53,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:53,559 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 202 transitions. [2023-12-20 03:09:53,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,559 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 202 transitions. [2023-12-20 03:09:53,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-20 03:09:53,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:53,562 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] [2023-12-20 03:09:53,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 03:09:53,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:53,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:53,563 INFO L85 PathProgramCache]: Analyzing trace with hash -577877594, now seen corresponding path program 1 times [2023-12-20 03:09:53,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:53,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614960570] [2023-12-20 03:09:53,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:53,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:53,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:53,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614960570] [2023-12-20 03:09:53,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614960570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:53,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:53,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 03:09:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591469778] [2023-12-20 03:09:53,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:53,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:09:53,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:53,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:09:53,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:09:53,686 INFO L87 Difference]: Start difference. First operand 163 states and 202 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:53,784 INFO L93 Difference]: Finished difference Result 286 states and 363 transitions. [2023-12-20 03:09:53,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:09:53,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 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 47 [2023-12-20 03:09:53,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:53,790 INFO L225 Difference]: With dead ends: 286 [2023-12-20 03:09:53,794 INFO L226 Difference]: Without dead ends: 155 [2023-12-20 03:09:53,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:09:53,798 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 537 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:53,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 125 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:09:53,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-12-20 03:09:53,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-12-20 03:09:53,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.2972972972972974) internal successors, (192), 154 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 192 transitions. [2023-12-20 03:09:53,804 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 192 transitions. Word has length 47 [2023-12-20 03:09:53,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:53,805 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 192 transitions. [2023-12-20 03:09:53,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:53,805 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 192 transitions. [2023-12-20 03:09:53,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-20 03:09:53,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:53,806 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] [2023-12-20 03:09:53,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 03:09:53,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:53,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:53,806 INFO L85 PathProgramCache]: Analyzing trace with hash -990553041, now seen corresponding path program 1 times [2023-12-20 03:09:53,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:53,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854455291] [2023-12-20 03:09:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:53,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:54,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:54,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854455291] [2023-12-20 03:09:54,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854455291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:54,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:54,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:09:54,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984028051] [2023-12-20 03:09:54,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:54,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:09:54,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:54,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:09:54,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:09:54,036 INFO L87 Difference]: Start difference. First operand 155 states and 192 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:54,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:54,464 INFO L93 Difference]: Finished difference Result 330 states and 433 transitions. [2023-12-20 03:09:54,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:09:54,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2023-12-20 03:09:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:54,465 INFO L225 Difference]: With dead ends: 330 [2023-12-20 03:09:54,465 INFO L226 Difference]: Without dead ends: 325 [2023-12-20 03:09:54,466 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 [2023-12-20 03:09:54,466 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 733 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:54,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 830 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:09:54,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-20 03:09:54,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 155. [2023-12-20 03:09:54,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.2905405405405406) internal successors, (191), 154 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:54,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 191 transitions. [2023-12-20 03:09:54,473 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 191 transitions. Word has length 48 [2023-12-20 03:09:54,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:54,473 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 191 transitions. [2023-12-20 03:09:54,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:54,473 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 191 transitions. [2023-12-20 03:09:54,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-20 03:09:54,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:54,474 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] [2023-12-20 03:09:54,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 03:09:54,474 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:54,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:54,474 INFO L85 PathProgramCache]: Analyzing trace with hash 921644061, now seen corresponding path program 1 times [2023-12-20 03:09:54,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:54,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691849659] [2023-12-20 03:09:54,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:54,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:54,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:54,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691849659] [2023-12-20 03:09:54,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691849659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:54,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:54,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:09:54,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875730901] [2023-12-20 03:09:54,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:54,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:09:54,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:54,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:09:54,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:09:54,615 INFO L87 Difference]: Start difference. First operand 155 states and 191 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:54,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:54,949 INFO L93 Difference]: Finished difference Result 389 states and 517 transitions. [2023-12-20 03:09:54,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 03:09:54,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2023-12-20 03:09:54,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:54,952 INFO L225 Difference]: With dead ends: 389 [2023-12-20 03:09:54,952 INFO L226 Difference]: Without dead ends: 329 [2023-12-20 03:09:54,953 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 [2023-12-20 03:09:54,954 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 755 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:54,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 824 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:09:54,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-12-20 03:09:54,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 155. [2023-12-20 03:09:54,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.2837837837837838) internal successors, (190), 154 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:54,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 190 transitions. [2023-12-20 03:09:54,969 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 190 transitions. Word has length 48 [2023-12-20 03:09:54,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:54,971 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 190 transitions. [2023-12-20 03:09:54,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:54,971 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 190 transitions. [2023-12-20 03:09:54,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-20 03:09:54,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:54,974 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] [2023-12-20 03:09:54,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 03:09:54,975 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:54,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:54,975 INFO L85 PathProgramCache]: Analyzing trace with hash -528561187, now seen corresponding path program 1 times [2023-12-20 03:09:54,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:54,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130556428] [2023-12-20 03:09:54,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:54,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:55,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:55,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:55,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130556428] [2023-12-20 03:09:55,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130556428] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:55,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:55,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:09:55,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521380424] [2023-12-20 03:09:55,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:55,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 03:09:55,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:55,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 03:09:55,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:09:55,148 INFO L87 Difference]: Start difference. First operand 155 states and 190 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:55,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:55,313 INFO L93 Difference]: Finished difference Result 310 states and 390 transitions. [2023-12-20 03:09:55,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 03:09:55,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2023-12-20 03:09:55,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:55,315 INFO L225 Difference]: With dead ends: 310 [2023-12-20 03:09:55,315 INFO L226 Difference]: Without dead ends: 227 [2023-12-20 03:09:55,315 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 [2023-12-20 03:09:55,316 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 582 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:55,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 371 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:09:55,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-12-20 03:09:55,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 155. [2023-12-20 03:09:55,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 148 states have (on average 1.277027027027027) internal successors, (189), 154 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:55,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 189 transitions. [2023-12-20 03:09:55,319 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 189 transitions. Word has length 48 [2023-12-20 03:09:55,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:55,319 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 189 transitions. [2023-12-20 03:09:55,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:55,319 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 189 transitions. [2023-12-20 03:09:55,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 03:09:55,320 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:55,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:09:55,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 03:09:55,320 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:55,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:55,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1923049146, now seen corresponding path program 1 times [2023-12-20 03:09:55,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:55,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860997599] [2023-12-20 03:09:55,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:55,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:55,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:55,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860997599] [2023-12-20 03:09:55,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860997599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:55,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:55,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:09:55,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336139484] [2023-12-20 03:09:55,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:55,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:09:55,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:55,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:09:55,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:09:55,683 INFO L87 Difference]: Start difference. First operand 155 states and 189 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:56,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:56,165 INFO L93 Difference]: Finished difference Result 372 states and 468 transitions. [2023-12-20 03:09:56,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:09:56,165 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-20 03:09:56,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:56,167 INFO L225 Difference]: With dead ends: 372 [2023-12-20 03:09:56,167 INFO L226 Difference]: Without dead ends: 368 [2023-12-20 03:09:56,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-12-20 03:09:56,168 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 855 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:56,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1728 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:09:56,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-20 03:09:56,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 151. [2023-12-20 03:09:56,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 145 states have (on average 1.2758620689655173) internal successors, (185), 150 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:56,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 185 transitions. [2023-12-20 03:09:56,171 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 185 transitions. Word has length 50 [2023-12-20 03:09:56,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:56,171 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 185 transitions. [2023-12-20 03:09:56,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:56,171 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 185 transitions. [2023-12-20 03:09:56,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 03:09:56,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:56,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:09:56,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 03:09:56,172 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:56,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -297239348, now seen corresponding path program 1 times [2023-12-20 03:09:56,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:56,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658520884] [2023-12-20 03:09:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:56,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:56,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:56,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:56,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658520884] [2023-12-20 03:09:56,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658520884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:56,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:56,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:09:56,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184324765] [2023-12-20 03:09:56,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:56,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:09:56,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:56,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:09:56,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:09:56,543 INFO L87 Difference]: Start difference. First operand 151 states and 185 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:57,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:57,048 INFO L93 Difference]: Finished difference Result 414 states and 530 transitions. [2023-12-20 03:09:57,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 03:09:57,048 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-20 03:09:57,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:57,049 INFO L225 Difference]: With dead ends: 414 [2023-12-20 03:09:57,049 INFO L226 Difference]: Without dead ends: 367 [2023-12-20 03:09:57,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:09:57,050 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 1351 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:57,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 1006 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:09:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-20 03:09:57,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 147. [2023-12-20 03:09:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.267605633802817) internal successors, (180), 146 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:57,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 180 transitions. [2023-12-20 03:09:57,053 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 180 transitions. Word has length 50 [2023-12-20 03:09:57,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:57,054 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 180 transitions. [2023-12-20 03:09:57,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:57,054 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 180 transitions. [2023-12-20 03:09:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 03:09:57,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:57,054 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:09:57,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 03:09:57,054 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:57,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:57,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2077756496, now seen corresponding path program 1 times [2023-12-20 03:09:57,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:57,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496305788] [2023-12-20 03:09:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:57,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:57,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:57,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496305788] [2023-12-20 03:09:57,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496305788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:57,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:57,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:09:57,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413912872] [2023-12-20 03:09:57,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:57,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:09:57,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:57,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:09:57,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:09:57,376 INFO L87 Difference]: Start difference. First operand 147 states and 180 transitions. Second operand has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:57,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:57,859 INFO L93 Difference]: Finished difference Result 408 states and 536 transitions. [2023-12-20 03:09:57,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 03:09:57,860 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-20 03:09:57,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:57,861 INFO L225 Difference]: With dead ends: 408 [2023-12-20 03:09:57,861 INFO L226 Difference]: Without dead ends: 354 [2023-12-20 03:09:57,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-12-20 03:09:57,861 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 970 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:57,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 1901 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:09:57,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-12-20 03:09:57,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 136. [2023-12-20 03:09:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2651515151515151) internal successors, (167), 135 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:57,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 167 transitions. [2023-12-20 03:09:57,864 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 167 transitions. Word has length 50 [2023-12-20 03:09:57,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:57,865 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 167 transitions. [2023-12-20 03:09:57,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:57,865 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 167 transitions. [2023-12-20 03:09:57,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 03:09:57,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:57,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:09:57,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 03:09:57,865 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:57,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:57,866 INFO L85 PathProgramCache]: Analyzing trace with hash 200492003, now seen corresponding path program 1 times [2023-12-20 03:09:57,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:57,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124688211] [2023-12-20 03:09:57,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:57,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:58,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:58,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124688211] [2023-12-20 03:09:58,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124688211] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:58,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:58,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:09:58,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614408218] [2023-12-20 03:09:58,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:58,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:09:58,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:58,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:09:58,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:09:58,001 INFO L87 Difference]: Start difference. First operand 136 states and 167 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:58,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:58,245 INFO L93 Difference]: Finished difference Result 221 states and 275 transitions. [2023-12-20 03:09:58,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 03:09:58,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-20 03:09:58,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:58,246 INFO L225 Difference]: With dead ends: 221 [2023-12-20 03:09:58,246 INFO L226 Difference]: Without dead ends: 214 [2023-12-20 03:09:58,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:09:58,247 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 513 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:58,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 579 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:09:58,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-20 03:09:58,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 136. [2023-12-20 03:09:58,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 135 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 166 transitions. [2023-12-20 03:09:58,250 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 166 transitions. Word has length 51 [2023-12-20 03:09:58,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:58,250 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 166 transitions. [2023-12-20 03:09:58,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 166 transitions. [2023-12-20 03:09:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 03:09:58,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:58,250 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] [2023-12-20 03:09:58,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 03:09:58,251 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:58,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash -336264989, now seen corresponding path program 1 times [2023-12-20 03:09:58,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:58,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326347770] [2023-12-20 03:09:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:58,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:58,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:58,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326347770] [2023-12-20 03:09:58,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326347770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:58,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:58,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:09:58,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535303693] [2023-12-20 03:09:58,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:58,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:09:58,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:58,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:09:58,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:09:58,362 INFO L87 Difference]: Start difference. First operand 136 states and 166 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:58,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:58,635 INFO L93 Difference]: Finished difference Result 279 states and 358 transitions. [2023-12-20 03:09:58,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 03:09:58,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-20 03:09:58,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:58,636 INFO L225 Difference]: With dead ends: 279 [2023-12-20 03:09:58,636 INFO L226 Difference]: Without dead ends: 218 [2023-12-20 03:09:58,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-20 03:09:58,637 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 603 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:58,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 544 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:09:58,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-20 03:09:58,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 136. [2023-12-20 03:09:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.25) internal successors, (165), 135 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:58,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2023-12-20 03:09:58,639 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 51 [2023-12-20 03:09:58,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:58,639 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2023-12-20 03:09:58,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2023-12-20 03:09:58,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 03:09:58,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:58,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:09:58,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 03:09:58,640 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:58,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:58,641 INFO L85 PathProgramCache]: Analyzing trace with hash 91025507, now seen corresponding path program 1 times [2023-12-20 03:09:58,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:58,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056166666] [2023-12-20 03:09:58,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:58,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:58,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:58,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056166666] [2023-12-20 03:09:58,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056166666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:58,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:58,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:09:58,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851594099] [2023-12-20 03:09:58,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:58,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:09:58,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:58,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:09:58,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:09:58,869 INFO L87 Difference]: Start difference. First operand 136 states and 165 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:59,453 INFO L93 Difference]: Finished difference Result 348 states and 453 transitions. [2023-12-20 03:09:59,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 03:09:59,454 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-20 03:09:59,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:59,455 INFO L225 Difference]: With dead ends: 348 [2023-12-20 03:09:59,455 INFO L226 Difference]: Without dead ends: 341 [2023-12-20 03:09:59,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=509, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:09:59,456 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1093 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1093 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:59,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1093 Valid, 905 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:09:59,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-20 03:09:59,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 140. [2023-12-20 03:09:59,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 136 states have (on average 1.2426470588235294) internal successors, (169), 139 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:59,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2023-12-20 03:09:59,459 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 51 [2023-12-20 03:09:59,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:59,459 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2023-12-20 03:09:59,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:59,459 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2023-12-20 03:09:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 03:09:59,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:59,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:09:59,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 03:09:59,460 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:59,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:59,460 INFO L85 PathProgramCache]: Analyzing trace with hash 459016432, now seen corresponding path program 1 times [2023-12-20 03:09:59,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:59,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827675710] [2023-12-20 03:09:59,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:59,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:09:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:09:59,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:09:59,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827675710] [2023-12-20 03:09:59,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827675710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:09:59,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:09:59,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:09:59,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295281032] [2023-12-20 03:09:59,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:09:59,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:09:59,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:09:59,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:09:59,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:09:59,611 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:09:59,891 INFO L93 Difference]: Finished difference Result 221 states and 272 transitions. [2023-12-20 03:09:59,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 03:09:59,892 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-20 03:09:59,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:09:59,892 INFO L225 Difference]: With dead ends: 221 [2023-12-20 03:09:59,892 INFO L226 Difference]: Without dead ends: 214 [2023-12-20 03:09:59,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-12-20 03:09:59,893 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 507 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:09:59,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 632 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 03:09:59,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-20 03:09:59,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 136. [2023-12-20 03:09:59,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.2424242424242424) internal successors, (164), 135 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:59,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2023-12-20 03:09:59,896 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 52 [2023-12-20 03:09:59,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:09:59,896 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2023-12-20 03:09:59,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:09:59,896 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2023-12-20 03:09:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 03:09:59,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:09:59,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:09:59,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 03:09:59,897 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:09:59,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:09:59,897 INFO L85 PathProgramCache]: Analyzing trace with hash 815340979, now seen corresponding path program 1 times [2023-12-20 03:09:59,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:09:59,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626201854] [2023-12-20 03:09:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:09:59,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:09:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:00,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:00,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:00,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626201854] [2023-12-20 03:10:00,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626201854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:00,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:00,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-20 03:10:00,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014594655] [2023-12-20 03:10:00,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:00,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-20 03:10:00,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:00,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-20 03:10:00,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2023-12-20 03:10:00,336 INFO L87 Difference]: Start difference. First operand 136 states and 164 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:01,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:01,078 INFO L93 Difference]: Finished difference Result 369 states and 463 transitions. [2023-12-20 03:10:01,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:10:01,078 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-20 03:10:01,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:01,079 INFO L225 Difference]: With dead ends: 369 [2023-12-20 03:10:01,079 INFO L226 Difference]: Without dead ends: 361 [2023-12-20 03:10:01,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=847, Unknown=0, NotChecked=0, Total=1056 [2023-12-20 03:10:01,080 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 1309 mSDsluCounter, 2411 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:01,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 2719 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:10:01,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-12-20 03:10:01,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 145. [2023-12-20 03:10:01,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 141 states have (on average 1.2411347517730495) internal successors, (175), 144 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:01,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 175 transitions. [2023-12-20 03:10:01,085 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 175 transitions. Word has length 53 [2023-12-20 03:10:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:01,085 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 175 transitions. [2023-12-20 03:10:01,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 175 transitions. [2023-12-20 03:10:01,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 03:10:01,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:01,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:01,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 03:10:01,087 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:01,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:01,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1737446413, now seen corresponding path program 1 times [2023-12-20 03:10:01,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:01,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779927630] [2023-12-20 03:10:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:01,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:01,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:01,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:01,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779927630] [2023-12-20 03:10:01,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779927630] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:01,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:01,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-20 03:10:01,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72871833] [2023-12-20 03:10:01,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:01,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-20 03:10:01,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:01,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-20 03:10:01,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-12-20 03:10:01,717 INFO L87 Difference]: Start difference. First operand 145 states and 175 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:02,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:02,611 INFO L93 Difference]: Finished difference Result 562 states and 742 transitions. [2023-12-20 03:10:02,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:10:02,612 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-20 03:10:02,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:02,614 INFO L225 Difference]: With dead ends: 562 [2023-12-20 03:10:02,614 INFO L226 Difference]: Without dead ends: 556 [2023-12-20 03:10:02,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=173, Invalid=757, Unknown=0, NotChecked=0, Total=930 [2023-12-20 03:10:02,616 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 1501 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:02,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 2936 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:10:02,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2023-12-20 03:10:02,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 151. [2023-12-20 03:10:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 147 states have (on average 1.2448979591836735) internal successors, (183), 150 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:02,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 183 transitions. [2023-12-20 03:10:02,619 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 183 transitions. Word has length 53 [2023-12-20 03:10:02,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:02,619 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 183 transitions. [2023-12-20 03:10:02,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:02,619 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 183 transitions. [2023-12-20 03:10:02,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 03:10:02,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:02,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:02,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 03:10:02,620 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:02,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1302743949, now seen corresponding path program 1 times [2023-12-20 03:10:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:02,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325737784] [2023-12-20 03:10:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:02,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:03,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:03,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325737784] [2023-12-20 03:10:03,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325737784] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:03,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:03,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-12-20 03:10:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052199874] [2023-12-20 03:10:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:03,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-20 03:10:03,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:03,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-20 03:10:03,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-12-20 03:10:03,117 INFO L87 Difference]: Start difference. First operand 151 states and 183 transitions. Second operand has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:04,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:04,067 INFO L93 Difference]: Finished difference Result 372 states and 467 transitions. [2023-12-20 03:10:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 03:10:04,069 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-20 03:10:04,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:04,070 INFO L225 Difference]: With dead ends: 372 [2023-12-20 03:10:04,070 INFO L226 Difference]: Without dead ends: 364 [2023-12-20 03:10:04,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=190, Invalid=680, Unknown=0, NotChecked=0, Total=870 [2023-12-20 03:10:04,070 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 924 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:04,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 3053 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:10:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-12-20 03:10:04,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 156. [2023-12-20 03:10:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 152 states have (on average 1.236842105263158) internal successors, (188), 155 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:04,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 188 transitions. [2023-12-20 03:10:04,074 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 188 transitions. Word has length 53 [2023-12-20 03:10:04,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:04,074 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 188 transitions. [2023-12-20 03:10:04,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 17 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:04,074 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 188 transitions. [2023-12-20 03:10:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 03:10:04,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:04,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:04,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 03:10:04,075 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:04,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:04,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1478570090, now seen corresponding path program 1 times [2023-12-20 03:10:04,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:04,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29003787] [2023-12-20 03:10:04,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:04,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:04,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:04,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:04,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29003787] [2023-12-20 03:10:04,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29003787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:04,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:04,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-20 03:10:04,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134761664] [2023-12-20 03:10:04,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:04,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-20 03:10:04,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:04,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-20 03:10:04,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-20 03:10:04,557 INFO L87 Difference]: Start difference. First operand 156 states and 188 transitions. Second operand has 15 states, 15 states have (on average 3.6) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:05,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:05,667 INFO L93 Difference]: Finished difference Result 589 states and 790 transitions. [2023-12-20 03:10:05,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 03:10:05,668 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-20 03:10:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:05,669 INFO L225 Difference]: With dead ends: 589 [2023-12-20 03:10:05,669 INFO L226 Difference]: Without dead ends: 583 [2023-12-20 03:10:05,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2023-12-20 03:10:05,670 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 1381 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 986 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:05,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 2722 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:10:05,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-12-20 03:10:05,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 156. [2023-12-20 03:10:05,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 152 states have (on average 1.236842105263158) internal successors, (188), 155 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:05,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 188 transitions. [2023-12-20 03:10:05,674 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 188 transitions. Word has length 54 [2023-12-20 03:10:05,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:05,674 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 188 transitions. [2023-12-20 03:10:05,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:05,674 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 188 transitions. [2023-12-20 03:10:05,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 03:10:05,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:05,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:05,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 03:10:05,675 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:05,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:05,675 INFO L85 PathProgramCache]: Analyzing trace with hash 497385650, now seen corresponding path program 1 times [2023-12-20 03:10:05,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:05,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954990179] [2023-12-20 03:10:05,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:05,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:05,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:05,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954990179] [2023-12-20 03:10:05,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954990179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:05,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:05,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:10:05,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858762640] [2023-12-20 03:10:05,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:05,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:10:05,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:05,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:10:05,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:10:05,994 INFO L87 Difference]: Start difference. First operand 156 states and 188 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:06,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:06,671 INFO L93 Difference]: Finished difference Result 419 states and 559 transitions. [2023-12-20 03:10:06,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:10:06,672 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-20 03:10:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:06,674 INFO L225 Difference]: With dead ends: 419 [2023-12-20 03:10:06,674 INFO L226 Difference]: Without dead ends: 404 [2023-12-20 03:10:06,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:10:06,675 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 1069 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 2180 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:06,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 2180 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:10:06,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-12-20 03:10:06,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 141. [2023-12-20 03:10:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 138 states have (on average 1.2391304347826086) internal successors, (171), 140 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:06,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 171 transitions. [2023-12-20 03:10:06,678 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 171 transitions. Word has length 54 [2023-12-20 03:10:06,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:06,678 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 171 transitions. [2023-12-20 03:10:06,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:06,678 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 171 transitions. [2023-12-20 03:10:06,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 03:10:06,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:06,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:06,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 03:10:06,678 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:06,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:06,679 INFO L85 PathProgramCache]: Analyzing trace with hash -626895726, now seen corresponding path program 1 times [2023-12-20 03:10:06,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:06,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209775291] [2023-12-20 03:10:06,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:06,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:06,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:06,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:06,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209775291] [2023-12-20 03:10:06,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209775291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:06,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:06,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 03:10:06,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704468343] [2023-12-20 03:10:06,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:06,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 03:10:06,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:06,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 03:10:06,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 03:10:06,986 INFO L87 Difference]: Start difference. First operand 141 states and 171 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:07,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:07,621 INFO L93 Difference]: Finished difference Result 504 states and 684 transitions. [2023-12-20 03:10:07,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 03:10:07,621 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-20 03:10:07,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:07,639 INFO L225 Difference]: With dead ends: 504 [2023-12-20 03:10:07,639 INFO L226 Difference]: Without dead ends: 498 [2023-12-20 03:10:07,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:10:07,640 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 1006 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:07,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 2293 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:10:07,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-12-20 03:10:07,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 123. [2023-12-20 03:10:07,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 121 states have (on average 1.2396694214876034) internal successors, (150), 122 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:07,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 150 transitions. [2023-12-20 03:10:07,645 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 150 transitions. Word has length 54 [2023-12-20 03:10:07,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:07,645 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 150 transitions. [2023-12-20 03:10:07,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 12 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:07,645 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 150 transitions. [2023-12-20 03:10:07,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 03:10:07,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:07,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:07,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 03:10:07,646 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:07,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash -738737596, now seen corresponding path program 1 times [2023-12-20 03:10:07,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:07,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757416879] [2023-12-20 03:10:07,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:07,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:08,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:08,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:08,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757416879] [2023-12-20 03:10:08,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757416879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:08,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:08,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 03:10:08,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564698334] [2023-12-20 03:10:08,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:08,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 03:10:08,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:08,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 03:10:08,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-20 03:10:08,110 INFO L87 Difference]: Start difference. First operand 123 states and 150 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:08,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:08,728 INFO L93 Difference]: Finished difference Result 252 states and 322 transitions. [2023-12-20 03:10:08,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 03:10:08,728 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-20 03:10:08,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:08,729 INFO L225 Difference]: With dead ends: 252 [2023-12-20 03:10:08,729 INFO L226 Difference]: Without dead ends: 238 [2023-12-20 03:10:08,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2023-12-20 03:10:08,730 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 530 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:08,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 1337 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:10:08,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-20 03:10:08,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 118. [2023-12-20 03:10:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 1.2413793103448276) internal successors, (144), 117 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 144 transitions. [2023-12-20 03:10:08,732 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 144 transitions. Word has length 54 [2023-12-20 03:10:08,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:08,732 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 144 transitions. [2023-12-20 03:10:08,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 13 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 144 transitions. [2023-12-20 03:10:08,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 03:10:08,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:08,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:08,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 03:10:08,733 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:08,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash 149216704, now seen corresponding path program 1 times [2023-12-20 03:10:08,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:08,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450208415] [2023-12-20 03:10:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:08,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:08,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:08,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:08,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450208415] [2023-12-20 03:10:08,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450208415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:08,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:08,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:10:08,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312075749] [2023-12-20 03:10:08,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:08,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:10:08,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:08,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:10:08,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:10:08,970 INFO L87 Difference]: Start difference. First operand 118 states and 144 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:09,318 INFO L93 Difference]: Finished difference Result 366 states and 500 transitions. [2023-12-20 03:10:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 03:10:09,319 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-20 03:10:09,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:09,320 INFO L225 Difference]: With dead ends: 366 [2023-12-20 03:10:09,320 INFO L226 Difference]: Without dead ends: 348 [2023-12-20 03:10:09,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2023-12-20 03:10:09,320 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1083 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:09,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 805 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:10:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-20 03:10:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 100. [2023-12-20 03:10:09,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.2626262626262625) internal successors, (125), 99 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2023-12-20 03:10:09,323 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 54 [2023-12-20 03:10:09,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:09,323 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2023-12-20 03:10:09,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,323 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2023-12-20 03:10:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 03:10:09,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:09,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:09,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 03:10:09,324 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:09,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:09,324 INFO L85 PathProgramCache]: Analyzing trace with hash -546984540, now seen corresponding path program 1 times [2023-12-20 03:10:09,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:09,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844562830] [2023-12-20 03:10:09,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:09,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:09,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:09,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:09,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844562830] [2023-12-20 03:10:09,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844562830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:09,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:09,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:10:09,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617530700] [2023-12-20 03:10:09,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:09,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:10:09,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:09,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:10:09,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:10:09,370 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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) [2023-12-20 03:10:09,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:09,419 INFO L93 Difference]: Finished difference Result 358 states and 509 transitions. [2023-12-20 03:10:09,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 03:10:09,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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 [2023-12-20 03:10:09,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:09,420 INFO L225 Difference]: With dead ends: 358 [2023-12-20 03:10:09,420 INFO L226 Difference]: Without dead ends: 315 [2023-12-20 03:10:09,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:10:09,422 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 530 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:09,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 457 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:09,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-12-20 03:10:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 141. [2023-12-20 03:10:09,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.3285714285714285) internal successors, (186), 140 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 186 transitions. [2023-12-20 03:10:09,424 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 186 transitions. Word has length 71 [2023-12-20 03:10:09,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:09,425 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 186 transitions. [2023-12-20 03:10:09,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 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) [2023-12-20 03:10:09,425 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 186 transitions. [2023-12-20 03:10:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 03:10:09,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:09,425 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] [2023-12-20 03:10:09,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 03:10:09,425 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:09,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:09,426 INFO L85 PathProgramCache]: Analyzing trace with hash -2078520713, now seen corresponding path program 1 times [2023-12-20 03:10:09,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:09,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288538622] [2023-12-20 03:10:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:09,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:09,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:09,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:09,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288538622] [2023-12-20 03:10:09,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288538622] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:09,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:09,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:10:09,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995307565] [2023-12-20 03:10:09,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:09,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:10:09,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:09,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:10:09,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:10:09,473 INFO L87 Difference]: Start difference. First operand 141 states and 186 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:09,513 INFO L93 Difference]: Finished difference Result 436 states and 623 transitions. [2023-12-20 03:10:09,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:10:09,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 03:10:09,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:09,514 INFO L225 Difference]: With dead ends: 436 [2023-12-20 03:10:09,514 INFO L226 Difference]: Without dead ends: 352 [2023-12-20 03:10:09,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:10:09,515 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 292 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:09,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 414 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:09,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-20 03:10:09,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 223. [2023-12-20 03:10:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.3918918918918919) internal successors, (309), 222 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 309 transitions. [2023-12-20 03:10:09,519 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 309 transitions. Word has length 73 [2023-12-20 03:10:09,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:09,519 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 309 transitions. [2023-12-20 03:10:09,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,519 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 309 transitions. [2023-12-20 03:10:09,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 03:10:09,520 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:09,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:09,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 03:10:09,524 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:09,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:09,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2099864602, now seen corresponding path program 1 times [2023-12-20 03:10:09,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:09,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928413296] [2023-12-20 03:10:09,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:09,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:09,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:09,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:09,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928413296] [2023-12-20 03:10:09,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928413296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:09,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:09,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:10:09,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55880884] [2023-12-20 03:10:09,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:09,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:10:09,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:09,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:10:09,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:10:09,601 INFO L87 Difference]: Start difference. First operand 223 states and 309 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:09,636 INFO L93 Difference]: Finished difference Result 391 states and 558 transitions. [2023-12-20 03:10:09,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:10:09,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 03:10:09,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:09,637 INFO L225 Difference]: With dead ends: 391 [2023-12-20 03:10:09,637 INFO L226 Difference]: Without dead ends: 225 [2023-12-20 03:10:09,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:10:09,638 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 55 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:09,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 295 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:09,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-12-20 03:10:09,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2023-12-20 03:10:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.382882882882883) internal successors, (307), 222 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) [2023-12-20 03:10:09,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 307 transitions. [2023-12-20 03:10:09,643 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 307 transitions. Word has length 73 [2023-12-20 03:10:09,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:09,643 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 307 transitions. [2023-12-20 03:10:09,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,643 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 307 transitions. [2023-12-20 03:10:09,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 03:10:09,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:09,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:09,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 03:10:09,644 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:09,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:09,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1455362373, now seen corresponding path program 1 times [2023-12-20 03:10:09,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:09,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930088364] [2023-12-20 03:10:09,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:09,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:09,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:09,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:09,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930088364] [2023-12-20 03:10:09,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930088364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:09,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:09,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:10:09,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073703081] [2023-12-20 03:10:09,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:09,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:10:09,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:09,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:10:09,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:09,674 INFO L87 Difference]: Start difference. First operand 223 states and 307 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:09,691 INFO L93 Difference]: Finished difference Result 529 states and 755 transitions. [2023-12-20 03:10:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:10:09,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 03:10:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:09,693 INFO L225 Difference]: With dead ends: 529 [2023-12-20 03:10:09,693 INFO L226 Difference]: Without dead ends: 363 [2023-12-20 03:10:09,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:09,696 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 68 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:09,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 193 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:09,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-12-20 03:10:09,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 357. [2023-12-20 03:10:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 356 states have (on average 1.3876404494382022) internal successors, (494), 356 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 494 transitions. [2023-12-20 03:10:09,703 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 494 transitions. Word has length 73 [2023-12-20 03:10:09,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:09,703 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 494 transitions. [2023-12-20 03:10:09,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,704 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 494 transitions. [2023-12-20 03:10:09,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 03:10:09,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:09,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:09,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 03:10:09,704 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:09,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:09,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1485181309, now seen corresponding path program 1 times [2023-12-20 03:10:09,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:09,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477873474] [2023-12-20 03:10:09,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:09,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:09,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:09,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477873474] [2023-12-20 03:10:09,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477873474] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:09,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:09,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:10:09,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92032820] [2023-12-20 03:10:09,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:09,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:10:09,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:09,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:10:09,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:10:09,758 INFO L87 Difference]: Start difference. First operand 357 states and 494 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:09,796 INFO L93 Difference]: Finished difference Result 887 states and 1256 transitions. [2023-12-20 03:10:09,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:10:09,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 03:10:09,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:09,799 INFO L225 Difference]: With dead ends: 887 [2023-12-20 03:10:09,799 INFO L226 Difference]: Without dead ends: 736 [2023-12-20 03:10:09,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:10:09,800 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 287 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:09,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 451 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:09,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-12-20 03:10:09,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 581. [2023-12-20 03:10:09,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 1.4068965517241379) internal successors, (816), 580 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 816 transitions. [2023-12-20 03:10:09,808 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 816 transitions. Word has length 73 [2023-12-20 03:10:09,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:09,808 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 816 transitions. [2023-12-20 03:10:09,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 816 transitions. [2023-12-20 03:10:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-20 03:10:09,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:09,809 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] [2023-12-20 03:10:09,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 03:10:09,809 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:09,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:09,809 INFO L85 PathProgramCache]: Analyzing trace with hash -730460828, now seen corresponding path program 1 times [2023-12-20 03:10:09,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:09,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453157546] [2023-12-20 03:10:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:09,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:09,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:09,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:09,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453157546] [2023-12-20 03:10:09,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453157546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:09,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:09,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:10:09,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322914669] [2023-12-20 03:10:09,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:09,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:10:09,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:09,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:10:09,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:09,853 INFO L87 Difference]: Start difference. First operand 581 states and 816 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:09,865 INFO L93 Difference]: Finished difference Result 1573 states and 2228 transitions. [2023-12-20 03:10:09,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:10:09,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2023-12-20 03:10:09,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:09,868 INFO L225 Difference]: With dead ends: 1573 [2023-12-20 03:10:09,868 INFO L226 Difference]: Without dead ends: 1049 [2023-12-20 03:10:09,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:09,869 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 54 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:09,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 256 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2023-12-20 03:10:09,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 991. [2023-12-20 03:10:09,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.402020202020202) internal successors, (1388), 990 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1388 transitions. [2023-12-20 03:10:09,889 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1388 transitions. Word has length 74 [2023-12-20 03:10:09,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:09,889 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1388 transitions. [2023-12-20 03:10:09,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,889 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1388 transitions. [2023-12-20 03:10:09,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-20 03:10:09,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:09,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:10:09,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 03:10:09,891 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:09,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:09,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1645152135, now seen corresponding path program 1 times [2023-12-20 03:10:09,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:09,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245666692] [2023-12-20 03:10:09,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:09,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:09,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:09,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245666692] [2023-12-20 03:10:09,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245666692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:09,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:09,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:10:09,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665683441] [2023-12-20 03:10:09,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:09,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:10:09,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:09,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:10:09,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:09,936 INFO L87 Difference]: Start difference. First operand 991 states and 1388 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:09,951 INFO L93 Difference]: Finished difference Result 2747 states and 3846 transitions. [2023-12-20 03:10:09,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:10:09,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-20 03:10:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:09,955 INFO L225 Difference]: With dead ends: 2747 [2023-12-20 03:10:09,955 INFO L226 Difference]: Without dead ends: 1813 [2023-12-20 03:10:09,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:09,956 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 44 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:09,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 256 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2023-12-20 03:10:09,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1699. [2023-12-20 03:10:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1698 states have (on average 1.3839811542991756) internal successors, (2350), 1698 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2350 transitions. [2023-12-20 03:10:09,975 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2350 transitions. Word has length 75 [2023-12-20 03:10:09,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:09,976 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2350 transitions. [2023-12-20 03:10:09,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:09,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2350 transitions. [2023-12-20 03:10:09,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 03:10:09,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:09,976 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] [2023-12-20 03:10:09,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 03:10:09,977 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:09,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:09,977 INFO L85 PathProgramCache]: Analyzing trace with hash -92740011, now seen corresponding path program 1 times [2023-12-20 03:10:09,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:09,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838145031] [2023-12-20 03:10:09,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:09,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:10,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:10,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:10,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838145031] [2023-12-20 03:10:10,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838145031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:10,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:10,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 03:10:10,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79335882] [2023-12-20 03:10:10,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:10,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 03:10:10,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:10,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 03:10:10,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 03:10:10,069 INFO L87 Difference]: Start difference. First operand 1699 states and 2350 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 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) [2023-12-20 03:10:10,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:10,117 INFO L93 Difference]: Finished difference Result 3014 states and 4138 transitions. [2023-12-20 03:10:10,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:10:10,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 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 [2023-12-20 03:10:10,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:10,123 INFO L225 Difference]: With dead ends: 3014 [2023-12-20 03:10:10,123 INFO L226 Difference]: Without dead ends: 3012 [2023-12-20 03:10:10,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 03:10:10,127 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 203 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:10,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 660 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:10,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2023-12-20 03:10:10,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 1771. [2023-12-20 03:10:10,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1771 states, 1770 states have (on average 1.3593220338983052) internal successors, (2406), 1770 states have internal predecessors, (2406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:10,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1771 states to 1771 states and 2406 transitions. [2023-12-20 03:10:10,152 INFO L78 Accepts]: Start accepts. Automaton has 1771 states and 2406 transitions. Word has length 76 [2023-12-20 03:10:10,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:10,152 INFO L495 AbstractCegarLoop]: Abstraction has 1771 states and 2406 transitions. [2023-12-20 03:10:10,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 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) [2023-12-20 03:10:10,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1771 states and 2406 transitions. [2023-12-20 03:10:10,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 03:10:10,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:10,153 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] [2023-12-20 03:10:10,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 03:10:10,153 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:10,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:10,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1972991000, now seen corresponding path program 1 times [2023-12-20 03:10:10,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:10,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925148441] [2023-12-20 03:10:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:10,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:10,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:10,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925148441] [2023-12-20 03:10:10,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925148441] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:10,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:10,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:10:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081162819] [2023-12-20 03:10:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:10,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:10:10,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:10,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:10:10,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:10:10,210 INFO L87 Difference]: Start difference. First operand 1771 states and 2406 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) [2023-12-20 03:10:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:10,254 INFO L93 Difference]: Finished difference Result 3255 states and 4450 transitions. [2023-12-20 03:10:10,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:10:10,254 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 [2023-12-20 03:10:10,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:10,260 INFO L225 Difference]: With dead ends: 3255 [2023-12-20 03:10:10,260 INFO L226 Difference]: Without dead ends: 2761 [2023-12-20 03:10:10,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:10:10,262 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 284 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:10,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 423 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:10,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2023-12-20 03:10:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2263. [2023-12-20 03:10:10,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2263 states, 2262 states have (on average 1.3607427055702919) internal successors, (3078), 2262 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:10,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 3078 transitions. [2023-12-20 03:10:10,287 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 3078 transitions. Word has length 76 [2023-12-20 03:10:10,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:10,287 INFO L495 AbstractCegarLoop]: Abstraction has 2263 states and 3078 transitions. [2023-12-20 03:10:10,287 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) [2023-12-20 03:10:10,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 3078 transitions. [2023-12-20 03:10:10,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-20 03:10:10,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:10,288 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] [2023-12-20 03:10:10,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 03:10:10,288 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:10,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:10,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1730490915, now seen corresponding path program 1 times [2023-12-20 03:10:10,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:10,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26059510] [2023-12-20 03:10:10,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:10,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:10,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:10,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:10,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26059510] [2023-12-20 03:10:10,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26059510] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:10,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:10,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:10:10,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582181119] [2023-12-20 03:10:10,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:10,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:10:10,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:10,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:10:10,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:10,338 INFO L87 Difference]: Start difference. First operand 2263 states and 3078 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2023-12-20 03:10:10,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:10,359 INFO L93 Difference]: Finished difference Result 5883 states and 7992 transitions. [2023-12-20 03:10:10,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:10:10,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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 [2023-12-20 03:10:10,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:10,367 INFO L225 Difference]: With dead ends: 5883 [2023-12-20 03:10:10,367 INFO L226 Difference]: Without dead ends: 3677 [2023-12-20 03:10:10,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:10,370 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:10,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 259 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:10,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3677 states. [2023-12-20 03:10:10,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3677 to 3387. [2023-12-20 03:10:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 3386 states have (on average 1.3414057885410513) internal successors, (4542), 3386 states have internal predecessors, (4542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 4542 transitions. [2023-12-20 03:10:10,409 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 4542 transitions. Word has length 77 [2023-12-20 03:10:10,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:10,409 INFO L495 AbstractCegarLoop]: Abstraction has 3387 states and 4542 transitions. [2023-12-20 03:10:10,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 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) [2023-12-20 03:10:10,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 4542 transitions. [2023-12-20 03:10:10,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:10:10,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:10,410 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] [2023-12-20 03:10:10,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 03:10:10,411 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:10,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:10,411 INFO L85 PathProgramCache]: Analyzing trace with hash 350821364, now seen corresponding path program 1 times [2023-12-20 03:10:10,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:10,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622041612] [2023-12-20 03:10:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:10,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:10,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:10,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:10,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622041612] [2023-12-20 03:10:10,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622041612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:10:10,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:10:10,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:10:10,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044352183] [2023-12-20 03:10:10,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:10:10,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:10:10,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:10,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:10:10,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:10,458 INFO L87 Difference]: Start difference. First operand 3387 states and 4542 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:10,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:10,482 INFO L93 Difference]: Finished difference Result 6719 states and 9024 transitions. [2023-12-20 03:10:10,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:10:10,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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 [2023-12-20 03:10:10,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:10,489 INFO L225 Difference]: With dead ends: 6719 [2023-12-20 03:10:10,489 INFO L226 Difference]: Without dead ends: 3389 [2023-12-20 03:10:10,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:10:10,493 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 56 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:10,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 236 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:10:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3389 states. [2023-12-20 03:10:10,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3389 to 3387. [2023-12-20 03:10:10,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 3386 states have (on average 1.3201417601890135) internal successors, (4470), 3386 states have internal predecessors, (4470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:10,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 4470 transitions. [2023-12-20 03:10:10,533 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 4470 transitions. Word has length 98 [2023-12-20 03:10:10,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:10,533 INFO L495 AbstractCegarLoop]: Abstraction has 3387 states and 4470 transitions. [2023-12-20 03:10:10,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:10,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 4470 transitions. [2023-12-20 03:10:10,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 03:10:10,534 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:10,534 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, 1, 1, 1, 1, 1] [2023-12-20 03:10:10,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 03:10:10,534 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:10,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:10,535 INFO L85 PathProgramCache]: Analyzing trace with hash -147664979, now seen corresponding path program 1 times [2023-12-20 03:10:10,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:10,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398833632] [2023-12-20 03:10:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:10,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:10,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:10,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398833632] [2023-12-20 03:10:10,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398833632] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:10:10,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727025415] [2023-12-20 03:10:10,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:10,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:10:10,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:10:10,784 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:10:10,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 03:10:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:10,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 03:10:10,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:10:11,399 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:11,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:10:12,098 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:12,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727025415] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:10:12,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:10:12,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 29 [2023-12-20 03:10:12,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492262166] [2023-12-20 03:10:12,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:10:12,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 03:10:12,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:12,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 03:10:12,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=764, Unknown=0, NotChecked=0, Total=870 [2023-12-20 03:10:12,100 INFO L87 Difference]: Start difference. First operand 3387 states and 4470 transitions. Second operand has 30 states, 30 states have (on average 8.733333333333333) internal successors, (262), 29 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:24,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:10:24,879 INFO L93 Difference]: Finished difference Result 71175 states and 91935 transitions. [2023-12-20 03:10:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 309 states. [2023-12-20 03:10:24,879 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.733333333333333) internal successors, (262), 29 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-20 03:10:24,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:10:24,973 INFO L225 Difference]: With dead ends: 71175 [2023-12-20 03:10:24,973 INFO L226 Difference]: Without dead ends: 67845 [2023-12-20 03:10:25,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 511 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 335 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47612 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=14044, Invalid=99188, Unknown=0, NotChecked=0, Total=113232 [2023-12-20 03:10:25,006 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 6757 mSDsluCounter, 3822 mSDsCounter, 0 mSdLazyCounter, 3640 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6757 SdHoareTripleChecker+Valid, 4091 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:10:25,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6757 Valid, 4091 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3640 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 03:10:25,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67845 states. [2023-12-20 03:10:25,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67845 to 17123. [2023-12-20 03:10:25,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17123 states, 17122 states have (on average 1.3084335942062844) internal successors, (22403), 17122 states have internal predecessors, (22403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:25,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17123 states to 17123 states and 22403 transitions. [2023-12-20 03:10:25,553 INFO L78 Accepts]: Start accepts. Automaton has 17123 states and 22403 transitions. Word has length 98 [2023-12-20 03:10:25,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:10:25,554 INFO L495 AbstractCegarLoop]: Abstraction has 17123 states and 22403 transitions. [2023-12-20 03:10:25,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.733333333333333) internal successors, (262), 29 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:10:25,554 INFO L276 IsEmpty]: Start isEmpty. Operand 17123 states and 22403 transitions. [2023-12-20 03:10:25,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 03:10:25,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:10:25,556 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] [2023-12-20 03:10:25,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 03:10:25,764 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,SelfDestructingSolverStorable32 [2023-12-20 03:10:25,764 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:10:25,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:10:25,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1459589513, now seen corresponding path program 1 times [2023-12-20 03:10:25,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:10:25,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872569367] [2023-12-20 03:10:25,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:25,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:10:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:26,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:10:26,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872569367] [2023-12-20 03:10:26,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872569367] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:10:26,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021627286] [2023-12-20 03:10:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:10:26,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:10:26,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:10:26,209 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:10:26,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 03:10:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:10:26,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 03:10:26,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:10:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:26,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:10:27,220 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:10:27,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021627286] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:10:27,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:10:27,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2023-12-20 03:10:27,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80197452] [2023-12-20 03:10:27,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:10:27,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-20 03:10:27,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:10:27,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-20 03:10:27,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2023-12-20 03:10:27,222 INFO L87 Difference]: Start difference. First operand 17123 states and 22403 transitions. Second operand has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 28 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:14,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:11:14,196 INFO L93 Difference]: Finished difference Result 195162 states and 250866 transitions. [2023-12-20 03:11:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 800 states. [2023-12-20 03:11:14,196 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 28 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-20 03:11:14,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:11:14,446 INFO L225 Difference]: With dead ends: 195162 [2023-12-20 03:11:14,446 INFO L226 Difference]: Without dead ends: 178122 [2023-12-20 03:11:14,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 824 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326706 ImplicationChecksByTransitivity, 42.4s TimeCoverageRelationStatistics Valid=67124, Invalid=614326, Unknown=0, NotChecked=0, Total=681450 [2023-12-20 03:11:14,513 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 16523 mSDsluCounter, 4944 mSDsCounter, 0 mSdLazyCounter, 5619 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16523 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 5903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 5619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:11:14,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16523 Valid, 5356 Invalid, 5903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 5619 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-20 03:11:14,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178122 states. [2023-12-20 03:11:15,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178122 to 40834. [2023-12-20 03:11:15,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40834 states, 40833 states have (on average 1.303994318320966) internal successors, (53246), 40833 states have internal predecessors, (53246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:15,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40834 states to 40834 states and 53246 transitions. [2023-12-20 03:11:15,777 INFO L78 Accepts]: Start accepts. Automaton has 40834 states and 53246 transitions. Word has length 99 [2023-12-20 03:11:15,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:11:15,778 INFO L495 AbstractCegarLoop]: Abstraction has 40834 states and 53246 transitions. [2023-12-20 03:11:15,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 28 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:15,778 INFO L276 IsEmpty]: Start isEmpty. Operand 40834 states and 53246 transitions. [2023-12-20 03:11:15,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:11:15,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:11:15,783 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] [2023-12-20 03:11:15,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-20 03:11:15,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-12-20 03:11:15,990 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:11:15,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:11:15,991 INFO L85 PathProgramCache]: Analyzing trace with hash 388873768, now seen corresponding path program 1 times [2023-12-20 03:11:15,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:11:15,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798350408] [2023-12-20 03:11:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:15,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:11:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 03:11:16,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:11:16,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798350408] [2023-12-20 03:11:16,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798350408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:11:16,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:11:16,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:11:16,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357247091] [2023-12-20 03:11:16,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:11:16,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:11:16,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:11:16,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:11:16,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:11:16,027 INFO L87 Difference]: Start difference. First operand 40834 states and 53246 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) [2023-12-20 03:11:16,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:11:16,163 INFO L93 Difference]: Finished difference Result 66054 states and 86364 transitions. [2023-12-20 03:11:16,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:11:16,164 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 [2023-12-20 03:11:16,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:11:16,197 INFO L225 Difference]: With dead ends: 66054 [2023-12-20 03:11:16,197 INFO L226 Difference]: Without dead ends: 25336 [2023-12-20 03:11:16,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:11:16,226 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 83 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:11:16,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 101 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:11:16,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25336 states. [2023-12-20 03:11:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25336 to 25307. [2023-12-20 03:11:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25307 states, 25306 states have (on average 1.2953054611554573) internal successors, (32779), 25306 states have internal predecessors, (32779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:16,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25307 states to 25307 states and 32779 transitions. [2023-12-20 03:11:16,453 INFO L78 Accepts]: Start accepts. Automaton has 25307 states and 32779 transitions. Word has length 100 [2023-12-20 03:11:16,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:11:16,453 INFO L495 AbstractCegarLoop]: Abstraction has 25307 states and 32779 transitions. [2023-12-20 03:11:16,453 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) [2023-12-20 03:11:16,453 INFO L276 IsEmpty]: Start isEmpty. Operand 25307 states and 32779 transitions. [2023-12-20 03:11:16,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:11:16,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:11:16,457 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] [2023-12-20 03:11:16,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 03:11:16,457 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:11:16,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:11:16,458 INFO L85 PathProgramCache]: Analyzing trace with hash 719622775, now seen corresponding path program 1 times [2023-12-20 03:11:16,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:11:16,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986407030] [2023-12-20 03:11:16,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:16,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:11:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-20 03:11:16,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:11:16,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986407030] [2023-12-20 03:11:16,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986407030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:11:16,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:11:16,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 03:11:16,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096321161] [2023-12-20 03:11:16,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:11:16,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 03:11:16,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:11:16,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 03:11:16,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 03:11:16,668 INFO L87 Difference]: Start difference. First operand 25307 states and 32779 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:17,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:11:17,619 INFO L93 Difference]: Finished difference Result 67134 states and 86259 transitions. [2023-12-20 03:11:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 03:11:17,619 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 03:11:17,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:11:17,674 INFO L225 Difference]: With dead ends: 67134 [2023-12-20 03:11:17,674 INFO L226 Difference]: Without dead ends: 53027 [2023-12-20 03:11:17,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=242, Invalid=688, Unknown=0, NotChecked=0, Total=930 [2023-12-20 03:11:17,695 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1704 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:11:17,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 842 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:11:17,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53027 states. [2023-12-20 03:11:18,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53027 to 25307. [2023-12-20 03:11:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25307 states, 25306 states have (on average 1.2952264285149766) internal successors, (32777), 25306 states have internal predecessors, (32777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:18,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25307 states to 25307 states and 32777 transitions. [2023-12-20 03:11:18,171 INFO L78 Accepts]: Start accepts. Automaton has 25307 states and 32777 transitions. Word has length 100 [2023-12-20 03:11:18,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:11:18,171 INFO L495 AbstractCegarLoop]: Abstraction has 25307 states and 32777 transitions. [2023-12-20 03:11:18,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:18,171 INFO L276 IsEmpty]: Start isEmpty. Operand 25307 states and 32777 transitions. [2023-12-20 03:11:18,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 03:11:18,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:11:18,174 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:11:18,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 03:11:18,174 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:11:18,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:11:18,175 INFO L85 PathProgramCache]: Analyzing trace with hash -966122679, now seen corresponding path program 1 times [2023-12-20 03:11:18,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:11:18,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718835007] [2023-12-20 03:11:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:18,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:11:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-20 03:11:18,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:11:18,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718835007] [2023-12-20 03:11:18,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718835007] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:11:18,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:11:18,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 03:11:18,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890779496] [2023-12-20 03:11:18,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:11:18,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 03:11:18,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:11:18,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 03:11:18,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 03:11:18,308 INFO L87 Difference]: Start difference. First operand 25307 states and 32777 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:18,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:11:18,589 INFO L93 Difference]: Finished difference Result 41818 states and 54122 transitions. [2023-12-20 03:11:18,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 03:11:18,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 03:11:18,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:11:18,622 INFO L225 Difference]: With dead ends: 41818 [2023-12-20 03:11:18,622 INFO L226 Difference]: Without dead ends: 35968 [2023-12-20 03:11:18,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2023-12-20 03:11:18,634 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 439 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:11:18,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 374 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:11:18,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35968 states. [2023-12-20 03:11:18,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35968 to 25307. [2023-12-20 03:11:18,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25307 states, 25306 states have (on average 1.2951473958744961) internal successors, (32775), 25306 states have internal predecessors, (32775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25307 states to 25307 states and 32775 transitions. [2023-12-20 03:11:19,016 INFO L78 Accepts]: Start accepts. Automaton has 25307 states and 32775 transitions. Word has length 100 [2023-12-20 03:11:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:11:19,017 INFO L495 AbstractCegarLoop]: Abstraction has 25307 states and 32775 transitions. [2023-12-20 03:11:19,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 25307 states and 32775 transitions. [2023-12-20 03:11:19,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 03:11:19,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:11:19,020 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] [2023-12-20 03:11:19,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 03:11:19,020 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:11:19,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:11:19,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1598852247, now seen corresponding path program 1 times [2023-12-20 03:11:19,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:11:19,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436614549] [2023-12-20 03:11:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:19,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:11:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:19,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:11:19,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436614549] [2023-12-20 03:11:19,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436614549] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:11:19,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475806757] [2023-12-20 03:11:19,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:19,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:11:19,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:11:19,268 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:11:19,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 03:11:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:19,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-20 03:11:19,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:11:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:20,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:11:20,914 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:20,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475806757] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:11:20,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:11:20,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2023-12-20 03:11:20,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787899399] [2023-12-20 03:11:20,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:11:20,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-20 03:11:20,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:11:20,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-20 03:11:20,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:11:20,917 INFO L87 Difference]: Start difference. First operand 25307 states and 32775 transitions. Second operand has 26 states, 26 states have (on average 8.76923076923077) internal successors, (228), 25 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:22,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:11:22,405 INFO L93 Difference]: Finished difference Result 83196 states and 106825 transitions. [2023-12-20 03:11:22,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-20 03:11:22,405 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.76923076923077) internal successors, (228), 25 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-20 03:11:22,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:11:22,471 INFO L225 Difference]: With dead ends: 83196 [2023-12-20 03:11:22,471 INFO L226 Difference]: Without dead ends: 64212 [2023-12-20 03:11:22,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 186 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=664, Invalid=1688, Unknown=0, NotChecked=0, Total=2352 [2023-12-20 03:11:22,497 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 1348 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 1160 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:11:22,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 1160 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:11:22,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64212 states. [2023-12-20 03:11:22,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64212 to 44303. [2023-12-20 03:11:23,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44303 states, 44302 states have (on average 1.29409507471446) internal successors, (57331), 44302 states have internal predecessors, (57331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:23,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44303 states to 44303 states and 57331 transitions. [2023-12-20 03:11:23,055 INFO L78 Accepts]: Start accepts. Automaton has 44303 states and 57331 transitions. Word has length 101 [2023-12-20 03:11:23,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:11:23,056 INFO L495 AbstractCegarLoop]: Abstraction has 44303 states and 57331 transitions. [2023-12-20 03:11:23,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.76923076923077) internal successors, (228), 25 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:23,056 INFO L276 IsEmpty]: Start isEmpty. Operand 44303 states and 57331 transitions. [2023-12-20 03:11:23,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 03:11:23,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:11:23,060 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] [2023-12-20 03:11:23,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 03:11:23,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:11:23,265 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:11:23,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:11:23,265 INFO L85 PathProgramCache]: Analyzing trace with hash -2001808872, now seen corresponding path program 1 times [2023-12-20 03:11:23,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:11:23,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389078766] [2023-12-20 03:11:23,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:23,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:11:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:23,419 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:23,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:11:23,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389078766] [2023-12-20 03:11:23,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389078766] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:11:23,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908707082] [2023-12-20 03:11:23,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:23,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:11:23,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:11:23,421 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:11:23,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 03:11:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:23,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-20 03:11:23,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:11:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:24,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:11:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:24,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908707082] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:11:24,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:11:24,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 28 [2023-12-20 03:11:24,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457491443] [2023-12-20 03:11:24,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:11:24,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 03:11:24,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:11:24,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 03:11:24,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2023-12-20 03:11:24,829 INFO L87 Difference]: Start difference. First operand 44303 states and 57331 transitions. Second operand has 29 states, 29 states have (on average 10.068965517241379) internal successors, (292), 28 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:11:33,256 INFO L93 Difference]: Finished difference Result 229622 states and 290311 transitions. [2023-12-20 03:11:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-12-20 03:11:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.068965517241379) internal successors, (292), 28 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 03:11:33,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:11:33,531 INFO L225 Difference]: With dead ends: 229622 [2023-12-20 03:11:33,532 INFO L226 Difference]: Without dead ends: 211576 [2023-12-20 03:11:33,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19023 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=8801, Invalid=40705, Unknown=0, NotChecked=0, Total=49506 [2023-12-20 03:11:33,609 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 3609 mSDsluCounter, 4346 mSDsCounter, 0 mSdLazyCounter, 3786 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3609 SdHoareTripleChecker+Valid, 4644 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 3786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:11:33,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3609 Valid, 4644 Invalid, 3847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 3786 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 03:11:33,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211576 states. [2023-12-20 03:11:35,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211576 to 44229. [2023-12-20 03:11:35,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44229 states, 44228 states have (on average 1.294474088812517) internal successors, (57252), 44228 states have internal predecessors, (57252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:35,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44229 states to 44229 states and 57252 transitions. [2023-12-20 03:11:35,213 INFO L78 Accepts]: Start accepts. Automaton has 44229 states and 57252 transitions. Word has length 102 [2023-12-20 03:11:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:11:35,214 INFO L495 AbstractCegarLoop]: Abstraction has 44229 states and 57252 transitions. [2023-12-20 03:11:35,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.068965517241379) internal successors, (292), 28 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 44229 states and 57252 transitions. [2023-12-20 03:11:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 03:11:35,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:11:35,217 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] [2023-12-20 03:11:35,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 03:11:35,428 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,SelfDestructingSolverStorable38 [2023-12-20 03:11:35,429 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:11:35,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:11:35,429 INFO L85 PathProgramCache]: Analyzing trace with hash -754638916, now seen corresponding path program 1 times [2023-12-20 03:11:35,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:11:35,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032560744] [2023-12-20 03:11:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:35,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:11:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:36,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:11:36,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032560744] [2023-12-20 03:11:36,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032560744] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:11:36,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890809179] [2023-12-20 03:11:36,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:36,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:11:36,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:11:36,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:11:36,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 03:11:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:36,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-20 03:11:36,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:11:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:37,142 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:11:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:38,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890809179] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:11:38,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:11:38,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 15] total 43 [2023-12-20 03:11:38,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160214241] [2023-12-20 03:11:38,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:11:38,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-20 03:11:38,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:11:38,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-20 03:11:38,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=1657, Unknown=0, NotChecked=0, Total=1806 [2023-12-20 03:11:38,382 INFO L87 Difference]: Start difference. First operand 44229 states and 57252 transitions. Second operand has 43 states, 43 states have (on average 6.116279069767442) internal successors, (263), 43 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:53,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:11:53,539 INFO L93 Difference]: Finished difference Result 240214 states and 309820 transitions. [2023-12-20 03:11:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 229 states. [2023-12-20 03:11:53,540 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 6.116279069767442) internal successors, (263), 43 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 03:11:53,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:11:53,768 INFO L225 Difference]: With dead ends: 240214 [2023-12-20 03:11:53,769 INFO L226 Difference]: Without dead ends: 202241 [2023-12-20 03:11:53,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25668 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=6609, Invalid=64413, Unknown=0, NotChecked=0, Total=71022 [2023-12-20 03:11:53,825 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 9736 mSDsluCounter, 18432 mSDsCounter, 0 mSdLazyCounter, 8771 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9736 SdHoareTripleChecker+Valid, 19129 SdHoareTripleChecker+Invalid, 8833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 8771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:11:53,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9736 Valid, 19129 Invalid, 8833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 8771 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-20 03:11:53,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202241 states. [2023-12-20 03:11:55,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202241 to 28265. [2023-12-20 03:11:55,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28265 states, 28264 states have (on average 1.2958887630908575) internal successors, (36627), 28264 states have internal predecessors, (36627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:55,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28265 states to 28265 states and 36627 transitions. [2023-12-20 03:11:55,269 INFO L78 Accepts]: Start accepts. Automaton has 28265 states and 36627 transitions. Word has length 102 [2023-12-20 03:11:55,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:11:55,269 INFO L495 AbstractCegarLoop]: Abstraction has 28265 states and 36627 transitions. [2023-12-20 03:11:55,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 6.116279069767442) internal successors, (263), 43 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:55,270 INFO L276 IsEmpty]: Start isEmpty. Operand 28265 states and 36627 transitions. [2023-12-20 03:11:55,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 03:11:55,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:11:55,272 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] [2023-12-20 03:11:55,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 03:11:55,476 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,SelfDestructingSolverStorable39 [2023-12-20 03:11:55,477 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:11:55,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:11:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1090691830, now seen corresponding path program 1 times [2023-12-20 03:11:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:11:55,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740433544] [2023-12-20 03:11:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:55,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:11:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:55,800 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:55,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:11:55,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740433544] [2023-12-20 03:11:55,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740433544] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:11:55,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814150565] [2023-12-20 03:11:55,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:55,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:11:55,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:11:55,802 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:11:55,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 03:11:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:55,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 03:11:55,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:11:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:56,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:11:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:56,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814150565] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:11:56,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:11:56,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 29 [2023-12-20 03:11:56,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278071400] [2023-12-20 03:11:56,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:11:56,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 03:11:56,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:11:56,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 03:11:56,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=712, Unknown=0, NotChecked=0, Total=812 [2023-12-20 03:11:56,834 INFO L87 Difference]: Start difference. First operand 28265 states and 36627 transitions. Second operand has 29 states, 29 states have (on average 8.758620689655173) internal successors, (254), 29 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:58,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:11:58,273 INFO L93 Difference]: Finished difference Result 102194 states and 131340 transitions. [2023-12-20 03:11:58,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-20 03:11:58,273 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.758620689655173) internal successors, (254), 29 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-20 03:11:58,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:11:58,350 INFO L225 Difference]: With dead ends: 102194 [2023-12-20 03:11:58,350 INFO L226 Difference]: Without dead ends: 80237 [2023-12-20 03:11:58,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=883, Invalid=3023, Unknown=0, NotChecked=0, Total=3906 [2023-12-20 03:11:58,377 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 2030 mSDsluCounter, 4491 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 4765 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:11:58,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 4765 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 03:11:58,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80237 states. [2023-12-20 03:11:58,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80237 to 36500. [2023-12-20 03:11:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36500 states, 36499 states have (on average 1.2963368859420805) internal successors, (47315), 36499 states have internal predecessors, (47315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:58,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36500 states to 36500 states and 47315 transitions. [2023-12-20 03:11:58,974 INFO L78 Accepts]: Start accepts. Automaton has 36500 states and 47315 transitions. Word has length 103 [2023-12-20 03:11:58,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:11:58,974 INFO L495 AbstractCegarLoop]: Abstraction has 36500 states and 47315 transitions. [2023-12-20 03:11:58,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.758620689655173) internal successors, (254), 29 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:11:58,974 INFO L276 IsEmpty]: Start isEmpty. Operand 36500 states and 47315 transitions. [2023-12-20 03:11:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 03:11:58,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:11:58,977 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] [2023-12-20 03:11:58,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-20 03:11:59,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:11:59,181 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:11:59,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:11:59,182 INFO L85 PathProgramCache]: Analyzing trace with hash 901802335, now seen corresponding path program 1 times [2023-12-20 03:11:59,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:11:59,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749067094] [2023-12-20 03:11:59,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:59,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:11:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:11:59,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:11:59,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749067094] [2023-12-20 03:11:59,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749067094] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:11:59,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514507574] [2023-12-20 03:11:59,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:11:59,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:11:59,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:11:59,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:11:59,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 03:11:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:11:59,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-20 03:11:59,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:12:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:00,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:12:01,980 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:01,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514507574] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:12:01,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:12:01,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 16] total 45 [2023-12-20 03:12:01,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040840293] [2023-12-20 03:12:01,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:12:01,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-12-20 03:12:01,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:01,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-12-20 03:12:01,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1833, Unknown=0, NotChecked=0, Total=1980 [2023-12-20 03:12:01,982 INFO L87 Difference]: Start difference. First operand 36500 states and 47315 transitions. Second operand has 45 states, 45 states have (on average 6.288888888888889) internal successors, (283), 45 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:13,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:13,766 INFO L93 Difference]: Finished difference Result 285831 states and 363791 transitions. [2023-12-20 03:12:13,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2023-12-20 03:12:13,767 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 6.288888888888889) internal successors, (283), 45 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-20 03:12:13,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:14,101 INFO L225 Difference]: With dead ends: 285831 [2023-12-20 03:12:14,101 INFO L226 Difference]: Without dead ends: 268254 [2023-12-20 03:12:14,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12533 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=3852, Invalid=36348, Unknown=0, NotChecked=0, Total=40200 [2023-12-20 03:12:14,168 INFO L413 NwaCegarLoop]: 1002 mSDtfsCounter, 5169 mSDsluCounter, 22917 mSDsCounter, 0 mSdLazyCounter, 7736 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5169 SdHoareTripleChecker+Valid, 23919 SdHoareTripleChecker+Invalid, 7759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 7736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:14,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5169 Valid, 23919 Invalid, 7759 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 7736 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-20 03:12:14,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268254 states. [2023-12-20 03:12:16,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268254 to 64944. [2023-12-20 03:12:16,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64944 states, 64943 states have (on average 1.297045101088647) internal successors, (84234), 64943 states have internal predecessors, (84234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:16,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64944 states to 64944 states and 84234 transitions. [2023-12-20 03:12:16,667 INFO L78 Accepts]: Start accepts. Automaton has 64944 states and 84234 transitions. Word has length 103 [2023-12-20 03:12:16,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:16,668 INFO L495 AbstractCegarLoop]: Abstraction has 64944 states and 84234 transitions. [2023-12-20 03:12:16,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 6.288888888888889) internal successors, (283), 45 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:16,671 INFO L276 IsEmpty]: Start isEmpty. Operand 64944 states and 84234 transitions. [2023-12-20 03:12:16,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 03:12:16,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:16,675 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] [2023-12-20 03:12:16,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 03:12:16,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:12:16,880 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:16,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:16,882 INFO L85 PathProgramCache]: Analyzing trace with hash 205641930, now seen corresponding path program 1 times [2023-12-20 03:12:16,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:16,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327818698] [2023-12-20 03:12:16,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:16,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:17,038 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:17,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:17,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327818698] [2023-12-20 03:12:17,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327818698] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:12:17,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444142219] [2023-12-20 03:12:17,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:17,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:12:17,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:12:17,040 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:12:17,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 03:12:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:17,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 03:12:17,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:12:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:17,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:12:18,006 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:18,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444142219] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:12:18,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:12:18,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 10] total 26 [2023-12-20 03:12:18,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592942841] [2023-12-20 03:12:18,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:12:18,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-20 03:12:18,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:18,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-20 03:12:18,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:12:18,007 INFO L87 Difference]: Start difference. First operand 64944 states and 84234 transitions. Second operand has 26 states, 26 states have (on average 10.653846153846153) internal successors, (277), 26 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:22,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:22,968 INFO L93 Difference]: Finished difference Result 273980 states and 350324 transitions. [2023-12-20 03:12:22,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2023-12-20 03:12:22,969 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.653846153846153) internal successors, (277), 26 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-20 03:12:22,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:23,292 INFO L225 Difference]: With dead ends: 273980 [2023-12-20 03:12:23,292 INFO L226 Difference]: Without dead ends: 227495 [2023-12-20 03:12:23,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5469 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2904, Invalid=13866, Unknown=0, NotChecked=0, Total=16770 [2023-12-20 03:12:23,583 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 3717 mSDsluCounter, 4117 mSDsCounter, 0 mSdLazyCounter, 3120 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 4436 SdHoareTripleChecker+Invalid, 3165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:23,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 4436 Invalid, 3165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3120 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 03:12:23,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227495 states. [2023-12-20 03:12:25,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227495 to 104096. [2023-12-20 03:12:25,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104096 states, 104095 states have (on average 1.2893510735385945) internal successors, (134215), 104095 states have internal predecessors, (134215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:25,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104096 states to 104096 states and 134215 transitions. [2023-12-20 03:12:25,489 INFO L78 Accepts]: Start accepts. Automaton has 104096 states and 134215 transitions. Word has length 103 [2023-12-20 03:12:25,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:25,489 INFO L495 AbstractCegarLoop]: Abstraction has 104096 states and 134215 transitions. [2023-12-20 03:12:25,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.653846153846153) internal successors, (277), 26 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:25,489 INFO L276 IsEmpty]: Start isEmpty. Operand 104096 states and 134215 transitions. [2023-12-20 03:12:25,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 03:12:25,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:25,493 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:12:25,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 03:12:25,698 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,SelfDestructingSolverStorable42 [2023-12-20 03:12:25,698 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:25,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:25,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1871551219, now seen corresponding path program 1 times [2023-12-20 03:12:25,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:25,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563371096] [2023-12-20 03:12:25,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:25,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:25,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:25,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563371096] [2023-12-20 03:12:25,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563371096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:12:25,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:12:25,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:12:25,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854684271] [2023-12-20 03:12:25,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:12:25,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:12:25,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:25,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:12:25,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:12:25,755 INFO L87 Difference]: Start difference. First operand 104096 states and 134215 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) [2023-12-20 03:12:26,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:26,159 INFO L93 Difference]: Finished difference Result 155199 states and 198815 transitions. [2023-12-20 03:12:26,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:12:26,159 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 [2023-12-20 03:12:26,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:26,219 INFO L225 Difference]: With dead ends: 155199 [2023-12-20 03:12:26,219 INFO L226 Difference]: Without dead ends: 51402 [2023-12-20 03:12:26,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:12:26,268 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 56 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:26,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 206 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:12:26,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51402 states. [2023-12-20 03:12:26,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51402 to 50136. [2023-12-20 03:12:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50136 states, 50135 states have (on average 1.2468335494165752) internal successors, (62510), 50135 states have internal predecessors, (62510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:26,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50136 states to 50136 states and 62510 transitions. [2023-12-20 03:12:26,915 INFO L78 Accepts]: Start accepts. Automaton has 50136 states and 62510 transitions. Word has length 104 [2023-12-20 03:12:26,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:26,916 INFO L495 AbstractCegarLoop]: Abstraction has 50136 states and 62510 transitions. [2023-12-20 03:12:26,916 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) [2023-12-20 03:12:26,916 INFO L276 IsEmpty]: Start isEmpty. Operand 50136 states and 62510 transitions. [2023-12-20 03:12:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 03:12:26,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:26,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:12:26,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 03:12:26,921 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:26,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:26,921 INFO L85 PathProgramCache]: Analyzing trace with hash 331856307, now seen corresponding path program 1 times [2023-12-20 03:12:26,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:26,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155783460] [2023-12-20 03:12:26,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:26,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:26,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:27,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:27,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155783460] [2023-12-20 03:12:27,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155783460] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:12:27,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005862911] [2023-12-20 03:12:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:27,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:12:27,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:12:27,687 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:12:27,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 03:12:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:27,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 03:12:27,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:12:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 03:12:27,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:12:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 03:12:28,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005862911] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:12:28,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:12:28,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 5, 5] total 27 [2023-12-20 03:12:28,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051594225] [2023-12-20 03:12:28,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:12:28,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-20 03:12:28,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:28,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-20 03:12:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2023-12-20 03:12:28,143 INFO L87 Difference]: Start difference. First operand 50136 states and 62510 transitions. Second operand has 27 states, 27 states have (on average 10.962962962962964) internal successors, (296), 27 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:30,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:30,195 INFO L93 Difference]: Finished difference Result 114855 states and 141649 transitions. [2023-12-20 03:12:30,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-20 03:12:30,196 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.962962962962964) internal successors, (296), 27 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 03:12:30,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:30,267 INFO L225 Difference]: With dead ends: 114855 [2023-12-20 03:12:30,268 INFO L226 Difference]: Without dead ends: 65004 [2023-12-20 03:12:30,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=618, Invalid=3414, Unknown=0, NotChecked=0, Total=4032 [2023-12-20 03:12:30,305 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1942 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 2063 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 2895 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:30,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1942 Valid, 2895 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2063 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:12:30,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65004 states. [2023-12-20 03:12:30,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65004 to 51608. [2023-12-20 03:12:30,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51608 states, 51607 states have (on average 1.2446373553975236) internal successors, (64232), 51607 states have internal predecessors, (64232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:30,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51608 states to 51608 states and 64232 transitions. [2023-12-20 03:12:30,903 INFO L78 Accepts]: Start accepts. Automaton has 51608 states and 64232 transitions. Word has length 104 [2023-12-20 03:12:30,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:30,904 INFO L495 AbstractCegarLoop]: Abstraction has 51608 states and 64232 transitions. [2023-12-20 03:12:30,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.962962962962964) internal successors, (296), 27 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:30,904 INFO L276 IsEmpty]: Start isEmpty. Operand 51608 states and 64232 transitions. [2023-12-20 03:12:30,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 03:12:30,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:30,907 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] [2023-12-20 03:12:30,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 03:12:31,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:12:31,111 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:31,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:31,112 INFO L85 PathProgramCache]: Analyzing trace with hash -957060298, now seen corresponding path program 1 times [2023-12-20 03:12:31,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:31,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307713255] [2023-12-20 03:12:31,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:31,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 03:12:31,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:31,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307713255] [2023-12-20 03:12:31,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307713255] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:12:31,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:12:31,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:12:31,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268025460] [2023-12-20 03:12:31,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:12:31,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:12:31,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:31,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:12:31,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:12:31,160 INFO L87 Difference]: Start difference. First operand 51608 states and 64232 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:31,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:31,483 INFO L93 Difference]: Finished difference Result 83989 states and 104843 transitions. [2023-12-20 03:12:31,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:12:31,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 03:12:31,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:31,517 INFO L225 Difference]: With dead ends: 83989 [2023-12-20 03:12:31,518 INFO L226 Difference]: Without dead ends: 33115 [2023-12-20 03:12:31,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:12:31,539 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 82 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:31,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 120 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:12:31,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33115 states. [2023-12-20 03:12:31,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33115 to 33115. [2023-12-20 03:12:31,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33115 states, 33114 states have (on average 1.2296007730869118) internal successors, (40717), 33114 states have internal predecessors, (40717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33115 states to 33115 states and 40717 transitions. [2023-12-20 03:12:31,962 INFO L78 Accepts]: Start accepts. Automaton has 33115 states and 40717 transitions. Word has length 104 [2023-12-20 03:12:31,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:31,962 INFO L495 AbstractCegarLoop]: Abstraction has 33115 states and 40717 transitions. [2023-12-20 03:12:31,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:31,962 INFO L276 IsEmpty]: Start isEmpty. Operand 33115 states and 40717 transitions. [2023-12-20 03:12:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 03:12:31,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:31,964 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] [2023-12-20 03:12:31,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 03:12:31,965 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:31,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:31,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1414774338, now seen corresponding path program 1 times [2023-12-20 03:12:31,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:31,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364360378] [2023-12-20 03:12:31,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:31,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:32,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:32,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364360378] [2023-12-20 03:12:32,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364360378] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:12:32,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022460808] [2023-12-20 03:12:32,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:32,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:12:32,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:12:32,891 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:12:32,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 03:12:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:32,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 03:12:32,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:12:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:33,629 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:12:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:34,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022460808] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:12:34,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:12:34,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 12, 11] total 43 [2023-12-20 03:12:34,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223860906] [2023-12-20 03:12:34,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:12:34,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-12-20 03:12:34,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:34,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-12-20 03:12:34,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1682, Unknown=0, NotChecked=0, Total=1806 [2023-12-20 03:12:34,158 INFO L87 Difference]: Start difference. First operand 33115 states and 40717 transitions. Second operand has 43 states, 43 states have (on average 6.558139534883721) internal successors, (282), 43 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) [2023-12-20 03:12:39,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:39,239 INFO L93 Difference]: Finished difference Result 55831 states and 68615 transitions. [2023-12-20 03:12:39,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-12-20 03:12:39,240 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 6.558139534883721) internal successors, (282), 43 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 104 [2023-12-20 03:12:39,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:39,282 INFO L225 Difference]: With dead ends: 55831 [2023-12-20 03:12:39,282 INFO L226 Difference]: Without dead ends: 44613 [2023-12-20 03:12:39,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2259 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1596, Invalid=9116, Unknown=0, NotChecked=0, Total=10712 [2023-12-20 03:12:39,298 INFO L413 NwaCegarLoop]: 366 mSDtfsCounter, 2483 mSDsluCounter, 8138 mSDsCounter, 0 mSdLazyCounter, 4241 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2483 SdHoareTripleChecker+Valid, 8504 SdHoareTripleChecker+Invalid, 4252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:39,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2483 Valid, 8504 Invalid, 4252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4241 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 03:12:39,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44613 states. [2023-12-20 03:12:39,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44613 to 34861. [2023-12-20 03:12:39,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34861 states, 34860 states have (on average 1.227882960413081) internal successors, (42804), 34860 states have internal predecessors, (42804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:39,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34861 states to 34861 states and 42804 transitions. [2023-12-20 03:12:39,618 INFO L78 Accepts]: Start accepts. Automaton has 34861 states and 42804 transitions. Word has length 104 [2023-12-20 03:12:39,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:39,618 INFO L495 AbstractCegarLoop]: Abstraction has 34861 states and 42804 transitions. [2023-12-20 03:12:39,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 6.558139534883721) internal successors, (282), 43 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) [2023-12-20 03:12:39,618 INFO L276 IsEmpty]: Start isEmpty. Operand 34861 states and 42804 transitions. [2023-12-20 03:12:39,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 03:12:39,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:39,621 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] [2023-12-20 03:12:39,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-20 03:12:39,824 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,SelfDestructingSolverStorable46 [2023-12-20 03:12:39,824 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:39,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:39,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2136890981, now seen corresponding path program 1 times [2023-12-20 03:12:39,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:39,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112321002] [2023-12-20 03:12:39,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:39,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:40,636 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:40,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:40,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112321002] [2023-12-20 03:12:40,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112321002] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:12:40,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785219882] [2023-12-20 03:12:40,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:40,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:12:40,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:12:40,645 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:12:40,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-20 03:12:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:40,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-20 03:12:40,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:12:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:41,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:12:41,839 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:41,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785219882] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:12:41,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:12:41,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 11] total 37 [2023-12-20 03:12:41,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383301127] [2023-12-20 03:12:41,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:12:41,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-12-20 03:12:41,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:41,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-12-20 03:12:41,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1210, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 03:12:41,841 INFO L87 Difference]: Start difference. First operand 34861 states and 42804 transitions. Second operand has 37 states, 37 states have (on average 7.594594594594595) internal successors, (281), 37 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:45,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:45,263 INFO L93 Difference]: Finished difference Result 66499 states and 81270 transitions. [2023-12-20 03:12:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-12-20 03:12:45,264 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 7.594594594594595) internal successors, (281), 37 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 104 [2023-12-20 03:12:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:45,323 INFO L225 Difference]: With dead ends: 66499 [2023-12-20 03:12:45,323 INFO L226 Difference]: Without dead ends: 56257 [2023-12-20 03:12:45,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1401 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1046, Invalid=5434, Unknown=0, NotChecked=0, Total=6480 [2023-12-20 03:12:45,343 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 2682 mSDsluCounter, 9881 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 10361 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:45,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 10361 Invalid, 2857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2847 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 03:12:45,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56257 states. [2023-12-20 03:12:45,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56257 to 34990. [2023-12-20 03:12:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34990 states, 34989 states have (on average 1.2270142044642602) internal successors, (42932), 34989 states have internal predecessors, (42932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34990 states to 34990 states and 42932 transitions. [2023-12-20 03:12:45,738 INFO L78 Accepts]: Start accepts. Automaton has 34990 states and 42932 transitions. Word has length 104 [2023-12-20 03:12:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:45,738 INFO L495 AbstractCegarLoop]: Abstraction has 34990 states and 42932 transitions. [2023-12-20 03:12:45,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.594594594594595) internal successors, (281), 37 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:45,739 INFO L276 IsEmpty]: Start isEmpty. Operand 34990 states and 42932 transitions. [2023-12-20 03:12:45,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 03:12:45,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:45,740 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:12:45,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-20 03:12:45,950 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,SelfDestructingSolverStorable47 [2023-12-20 03:12:45,952 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:45,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:45,952 INFO L85 PathProgramCache]: Analyzing trace with hash 713554370, now seen corresponding path program 1 times [2023-12-20 03:12:45,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:45,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392242914] [2023-12-20 03:12:45,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:45,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:46,133 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:46,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:46,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392242914] [2023-12-20 03:12:46,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392242914] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:12:46,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672990471] [2023-12-20 03:12:46,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:46,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:12:46,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:12:46,134 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:12:46,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-20 03:12:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:46,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-20 03:12:46,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:12:46,830 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:46,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:12:47,234 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:47,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672990471] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:12:47,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:12:47,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 20 [2023-12-20 03:12:47,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577570448] [2023-12-20 03:12:47,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:12:47,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-20 03:12:47,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:47,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-20 03:12:47,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2023-12-20 03:12:47,235 INFO L87 Difference]: Start difference. First operand 34990 states and 42932 transitions. Second operand has 20 states, 20 states have (on average 12.9) internal successors, (258), 20 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:48,119 INFO L93 Difference]: Finished difference Result 67421 states and 82929 transitions. [2023-12-20 03:12:48,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 03:12:48,119 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.9) internal successors, (258), 20 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 03:12:48,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:48,162 INFO L225 Difference]: With dead ends: 67421 [2023-12-20 03:12:48,162 INFO L226 Difference]: Without dead ends: 46313 [2023-12-20 03:12:48,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=257, Invalid=933, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 03:12:48,182 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1041 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:48,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1127 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 03:12:48,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46313 states. [2023-12-20 03:12:48,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46313 to 31430. [2023-12-20 03:12:48,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31430 states, 31429 states have (on average 1.226669636323141) internal successors, (38553), 31429 states have internal predecessors, (38553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:48,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31430 states to 31430 states and 38553 transitions. [2023-12-20 03:12:48,578 INFO L78 Accepts]: Start accepts. Automaton has 31430 states and 38553 transitions. Word has length 104 [2023-12-20 03:12:48,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:48,578 INFO L495 AbstractCegarLoop]: Abstraction has 31430 states and 38553 transitions. [2023-12-20 03:12:48,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.9) internal successors, (258), 20 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:48,578 INFO L276 IsEmpty]: Start isEmpty. Operand 31430 states and 38553 transitions. [2023-12-20 03:12:48,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 03:12:48,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:48,580 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:12:48,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-20 03:12:48,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-12-20 03:12:48,786 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:48,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1638980956, now seen corresponding path program 1 times [2023-12-20 03:12:48,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:48,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007556606] [2023-12-20 03:12:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:48,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:48,808 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-20 03:12:48,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:48,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007556606] [2023-12-20 03:12:48,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007556606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:12:48,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:12:48,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:12:48,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284059484] [2023-12-20 03:12:48,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:12:48,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:12:48,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:48,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:12:48,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:12:48,809 INFO L87 Difference]: Start difference. First operand 31430 states and 38553 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:48,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:48,930 INFO L93 Difference]: Finished difference Result 56976 states and 70187 transitions. [2023-12-20 03:12:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:12:48,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 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 105 [2023-12-20 03:12:48,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:48,955 INFO L225 Difference]: With dead ends: 56976 [2023-12-20 03:12:48,955 INFO L226 Difference]: Without dead ends: 25878 [2023-12-20 03:12:48,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:12:48,972 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 78 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:48,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 123 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:12:48,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25878 states. [2023-12-20 03:12:49,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25878 to 25878. [2023-12-20 03:12:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25878 states, 25877 states have (on average 1.2144375313985392) internal successors, (31426), 25877 states have internal predecessors, (31426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25878 states to 25878 states and 31426 transitions. [2023-12-20 03:12:49,193 INFO L78 Accepts]: Start accepts. Automaton has 25878 states and 31426 transitions. Word has length 105 [2023-12-20 03:12:49,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:49,193 INFO L495 AbstractCegarLoop]: Abstraction has 25878 states and 31426 transitions. [2023-12-20 03:12:49,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:49,194 INFO L276 IsEmpty]: Start isEmpty. Operand 25878 states and 31426 transitions. [2023-12-20 03:12:49,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 03:12:49,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:49,195 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] [2023-12-20 03:12:49,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-20 03:12:49,195 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:49,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:49,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1446226161, now seen corresponding path program 1 times [2023-12-20 03:12:49,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:49,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006060084] [2023-12-20 03:12:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:49,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:49,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:49,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006060084] [2023-12-20 03:12:49,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006060084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:12:49,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:12:49,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 03:12:49,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263781278] [2023-12-20 03:12:49,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:12:49,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 03:12:49,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:49,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 03:12:49,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:12:49,240 INFO L87 Difference]: Start difference. First operand 25878 states and 31426 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) [2023-12-20 03:12:49,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:49,298 INFO L93 Difference]: Finished difference Result 31171 states and 37749 transitions. [2023-12-20 03:12:49,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 03:12:49,298 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 [2023-12-20 03:12:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:49,303 INFO L225 Difference]: With dead ends: 31171 [2023-12-20 03:12:49,303 INFO L226 Difference]: Without dead ends: 5739 [2023-12-20 03:12:49,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 03:12:49,313 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 41 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:49,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 191 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:12:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5739 states. [2023-12-20 03:12:49,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5739 to 5737. [2023-12-20 03:12:49,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5737 states, 5736 states have (on average 1.1694560669456067) internal successors, (6708), 5736 states have internal predecessors, (6708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5737 states to 5737 states and 6708 transitions. [2023-12-20 03:12:49,350 INFO L78 Accepts]: Start accepts. Automaton has 5737 states and 6708 transitions. Word has length 105 [2023-12-20 03:12:49,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:49,350 INFO L495 AbstractCegarLoop]: Abstraction has 5737 states and 6708 transitions. [2023-12-20 03:12:49,350 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) [2023-12-20 03:12:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5737 states and 6708 transitions. [2023-12-20 03:12:49,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 03:12:49,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:49,351 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:12:49,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-12-20 03:12:49,351 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:12:49,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:12:49,351 INFO L85 PathProgramCache]: Analyzing trace with hash -828830719, now seen corresponding path program 1 times [2023-12-20 03:12:49,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:12:49,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233298788] [2023-12-20 03:12:49,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:49,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:12:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:49,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:12:49,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233298788] [2023-12-20 03:12:49,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233298788] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:12:49,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191144915] [2023-12-20 03:12:49,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:12:49,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:12:49,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:12:49,876 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:12:49,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-20 03:12:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:12:49,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-20 03:12:49,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:12:50,973 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:50,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:12:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:12:52,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191144915] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:12:52,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:12:52,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 49 [2023-12-20 03:12:52,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862091469] [2023-12-20 03:12:52,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:12:52,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-20 03:12:52,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:12:52,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-20 03:12:52,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=2147, Unknown=0, NotChecked=0, Total=2352 [2023-12-20 03:12:52,463 INFO L87 Difference]: Start difference. First operand 5737 states and 6708 transitions. Second operand has 49 states, 49 states have (on average 5.918367346938775) internal successors, (290), 49 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:12:59,833 INFO L93 Difference]: Finished difference Result 14179 states and 16539 transitions. [2023-12-20 03:12:59,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-12-20 03:12:59,834 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 5.918367346938775) internal successors, (290), 49 states have internal predecessors, (290), 0 states have call successors, (0), 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 [2023-12-20 03:12:59,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:12:59,841 INFO L225 Difference]: With dead ends: 14179 [2023-12-20 03:12:59,842 INFO L226 Difference]: Without dead ends: 10723 [2023-12-20 03:12:59,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5847 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3123, Invalid=16617, Unknown=0, NotChecked=0, Total=19740 [2023-12-20 03:12:59,846 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 4326 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 3070 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4326 SdHoareTripleChecker+Valid, 3905 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 3070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:12:59,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4326 Valid, 3905 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 3070 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-20 03:12:59,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10723 states. [2023-12-20 03:12:59,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10723 to 6077. [2023-12-20 03:12:59,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 1.1670506912442395) internal successors, (7091), 6076 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:59,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 7091 transitions. [2023-12-20 03:12:59,896 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 7091 transitions. Word has length 105 [2023-12-20 03:12:59,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:12:59,897 INFO L495 AbstractCegarLoop]: Abstraction has 6077 states and 7091 transitions. [2023-12-20 03:12:59,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.918367346938775) internal successors, (290), 49 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:12:59,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 7091 transitions. [2023-12-20 03:12:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 03:12:59,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:12:59,898 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:12:59,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-20 03:13:00,098 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,SelfDestructingSolverStorable51 [2023-12-20 03:13:00,098 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:13:00,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:13:00,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1561714498, now seen corresponding path program 1 times [2023-12-20 03:13:00,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:13:00,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023315122] [2023-12-20 03:13:00,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:13:00,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:13:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:13:00,888 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:00,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:13:00,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023315122] [2023-12-20 03:13:00,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023315122] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:13:00,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600201071] [2023-12-20 03:13:00,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:13:00,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:13:00,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:13:00,890 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:13:00,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-20 03:13:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:13:01,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-20 03:13:01,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:13:02,525 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:02,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:13:04,050 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:04,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600201071] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:13:04,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:13:04,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 19] total 59 [2023-12-20 03:13:04,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350403062] [2023-12-20 03:13:04,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:13:04,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-12-20 03:13:04,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:13:04,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-12-20 03:13:04,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=3261, Unknown=0, NotChecked=0, Total=3540 [2023-12-20 03:13:04,052 INFO L87 Difference]: Start difference. First operand 6077 states and 7091 transitions. Second operand has 60 states, 60 states have (on average 5.0) internal successors, (300), 59 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:13:14,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:13:14,720 INFO L93 Difference]: Finished difference Result 16325 states and 19029 transitions. [2023-12-20 03:13:14,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2023-12-20 03:13:14,720 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 5.0) internal successors, (300), 59 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 03:13:14,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:13:14,730 INFO L225 Difference]: With dead ends: 16325 [2023-12-20 03:13:14,730 INFO L226 Difference]: Without dead ends: 14656 [2023-12-20 03:13:14,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6260 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=2482, Invalid=22010, Unknown=0, NotChecked=0, Total=24492 [2023-12-20 03:13:14,733 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 3318 mSDsluCounter, 13849 mSDsCounter, 0 mSdLazyCounter, 5504 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3318 SdHoareTripleChecker+Valid, 14278 SdHoareTripleChecker+Invalid, 5541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 5504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:13:14,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3318 Valid, 14278 Invalid, 5541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 5504 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 03:13:14,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14656 states. [2023-12-20 03:13:14,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14656 to 5836. [2023-12-20 03:13:14,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5836 states, 5835 states have (on average 1.1682947729220223) internal successors, (6817), 5835 states have internal predecessors, (6817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:13:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5836 states to 5836 states and 6817 transitions. [2023-12-20 03:13:14,793 INFO L78 Accepts]: Start accepts. Automaton has 5836 states and 6817 transitions. Word has length 106 [2023-12-20 03:13:14,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:13:14,793 INFO L495 AbstractCegarLoop]: Abstraction has 5836 states and 6817 transitions. [2023-12-20 03:13:14,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 5.0) internal successors, (300), 59 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:13:14,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5836 states and 6817 transitions. [2023-12-20 03:13:14,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 03:13:14,801 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:13:14,801 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:13:14,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-20 03:13:15,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:13:15,007 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:13:15,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:13:15,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2023506591, now seen corresponding path program 1 times [2023-12-20 03:13:15,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:13:15,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910078195] [2023-12-20 03:13:15,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:13:15,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:13:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:13:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:15,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:13:15,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910078195] [2023-12-20 03:13:15,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910078195] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:13:15,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119227966] [2023-12-20 03:13:15,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:13:15,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:13:15,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:13:15,551 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:13:15,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-20 03:13:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:13:15,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-20 03:13:15,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:13:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:17,210 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:13:19,445 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:13:19,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119227966] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:13:19,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:13:19,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 23] total 62 [2023-12-20 03:13:19,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659134726] [2023-12-20 03:13:19,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:13:19,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-12-20 03:13:19,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:13:19,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-12-20 03:13:19,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=3587, Unknown=0, NotChecked=0, Total=3906 [2023-12-20 03:13:19,447 INFO L87 Difference]: Start difference. First operand 5836 states and 6817 transitions. Second operand has 63 states, 63 states have (on average 4.507936507936508) internal successors, (284), 62 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:14:16,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:14:16,491 INFO L93 Difference]: Finished difference Result 24615 states and 29418 transitions. [2023-12-20 03:14:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2023-12-20 03:14:16,491 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 4.507936507936508) internal successors, (284), 62 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 03:14:16,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:14:16,508 INFO L225 Difference]: With dead ends: 24615 [2023-12-20 03:14:16,508 INFO L226 Difference]: Without dead ends: 21962 [2023-12-20 03:14:16,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 427 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71861 ImplicationChecksByTransitivity, 50.9s TimeCoverageRelationStatistics Valid=18878, Invalid=164734, Unknown=0, NotChecked=0, Total=183612 [2023-12-20 03:14:16,522 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 9177 mSDsluCounter, 11755 mSDsCounter, 0 mSdLazyCounter, 10767 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9177 SdHoareTripleChecker+Valid, 12169 SdHoareTripleChecker+Invalid, 11087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 10767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:14:16,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9177 Valid, 12169 Invalid, 11087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [320 Valid, 10767 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-12-20 03:14:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21962 states. [2023-12-20 03:14:16,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21962 to 5205. [2023-12-20 03:14:16,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5205 states, 5204 states have (on average 1.1731360491929286) internal successors, (6105), 5204 states have internal predecessors, (6105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:14:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 5205 states and 6105 transitions. [2023-12-20 03:14:16,611 INFO L78 Accepts]: Start accepts. Automaton has 5205 states and 6105 transitions. Word has length 106 [2023-12-20 03:14:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:14:16,611 INFO L495 AbstractCegarLoop]: Abstraction has 5205 states and 6105 transitions. [2023-12-20 03:14:16,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 4.507936507936508) internal successors, (284), 62 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:14:16,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5205 states and 6105 transitions. [2023-12-20 03:14:16,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 03:14:16,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:14:16,612 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:14:16,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-20 03:14:16,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:14:16,817 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:14:16,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:14:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash 225628613, now seen corresponding path program 1 times [2023-12-20 03:14:16,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:14:16,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478352936] [2023-12-20 03:14:16,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:14:16,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:14:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:14:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:14:17,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:14:17,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478352936] [2023-12-20 03:14:17,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478352936] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:14:17,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312124406] [2023-12-20 03:14:17,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:14:17,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:14:17,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:14:17,516 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:14:17,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-20 03:14:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:14:17,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-20 03:14:17,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:14:20,149 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:14:20,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:14:23,021 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:14:23,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312124406] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:14:23,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:14:23,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 29, 27] total 73 [2023-12-20 03:14:23,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977971540] [2023-12-20 03:14:23,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:14:23,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2023-12-20 03:14:23,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:14:23,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2023-12-20 03:14:23,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=552, Invalid=4850, Unknown=0, NotChecked=0, Total=5402 [2023-12-20 03:14:23,024 INFO L87 Difference]: Start difference. First operand 5205 states and 6105 transitions. Second operand has 74 states, 74 states have (on average 3.9054054054054053) internal successors, (289), 73 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:14:46,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:14:46,520 INFO L93 Difference]: Finished difference Result 13361 states and 15529 transitions. [2023-12-20 03:14:46,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2023-12-20 03:14:46,521 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.9054054054054053) internal successors, (289), 73 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 03:14:46,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:14:46,527 INFO L225 Difference]: With dead ends: 13361 [2023-12-20 03:14:46,527 INFO L226 Difference]: Without dead ends: 9905 [2023-12-20 03:14:46,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21163 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=6939, Invalid=57323, Unknown=0, NotChecked=0, Total=64262 [2023-12-20 03:14:46,537 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 3542 mSDsluCounter, 16466 mSDsCounter, 0 mSdLazyCounter, 6768 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 17001 SdHoareTripleChecker+Invalid, 6835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 6768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:14:46,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 17001 Invalid, 6835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 6768 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-20 03:14:46,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9905 states. [2023-12-20 03:14:46,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 4108. [2023-12-20 03:14:46,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4108 states, 4107 states have (on average 1.1740930119308497) internal successors, (4822), 4107 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:14:46,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4108 states to 4108 states and 4822 transitions. [2023-12-20 03:14:46,577 INFO L78 Accepts]: Start accepts. Automaton has 4108 states and 4822 transitions. Word has length 106 [2023-12-20 03:14:46,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:14:46,577 INFO L495 AbstractCegarLoop]: Abstraction has 4108 states and 4822 transitions. [2023-12-20 03:14:46,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.9054054054054053) internal successors, (289), 73 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:14:46,578 INFO L276 IsEmpty]: Start isEmpty. Operand 4108 states and 4822 transitions. [2023-12-20 03:14:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-20 03:14:46,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:14:46,579 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:14:46,586 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-20 03:14:46,787 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,SelfDestructingSolverStorable54 [2023-12-20 03:14:46,787 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:14:46,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:14:46,788 INFO L85 PathProgramCache]: Analyzing trace with hash 827565537, now seen corresponding path program 1 times [2023-12-20 03:14:46,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:14:46,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701407028] [2023-12-20 03:14:46,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:14:46,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:14:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:14:47,202 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 30 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:14:47,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:14:47,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701407028] [2023-12-20 03:14:47,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701407028] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:14:47,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827438495] [2023-12-20 03:14:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:14:47,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:14:47,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:14:47,205 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:14:47,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-20 03:14:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:14:47,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 03:14:47,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:14:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 24 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:14:47,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:14:49,659 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:14:49,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827438495] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:14:49,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:14:49,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2023-12-20 03:14:49,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33893182] [2023-12-20 03:14:49,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:14:49,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-20 03:14:49,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:14:49,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-20 03:14:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 03:14:49,661 INFO L87 Difference]: Start difference. First operand 4108 states and 4822 transitions. Second operand has 34 states, 34 states have (on average 12.558823529411764) internal successors, (427), 33 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:14:55,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:14:55,817 INFO L93 Difference]: Finished difference Result 13027 states and 15458 transitions. [2023-12-20 03:14:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-20 03:14:55,817 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 12.558823529411764) internal successors, (427), 33 states have internal predecessors, (427), 0 states have call successors, (0), 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 149 [2023-12-20 03:14:55,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:14:55,826 INFO L225 Difference]: With dead ends: 13027 [2023-12-20 03:14:55,827 INFO L226 Difference]: Without dead ends: 11004 [2023-12-20 03:14:55,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6244 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=4083, Invalid=18267, Unknown=0, NotChecked=0, Total=22350 [2023-12-20 03:14:55,832 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 3013 mSDsluCounter, 3070 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 2954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 03:14:55,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 3252 Invalid, 2954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2915 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 03:14:55,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11004 states. [2023-12-20 03:14:55,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11004 to 7160. [2023-12-20 03:14:55,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7160 states, 7159 states have (on average 1.1751641290683057) internal successors, (8413), 7159 states have internal predecessors, (8413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:14:55,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7160 states to 7160 states and 8413 transitions. [2023-12-20 03:14:55,907 INFO L78 Accepts]: Start accepts. Automaton has 7160 states and 8413 transitions. Word has length 149 [2023-12-20 03:14:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:14:55,907 INFO L495 AbstractCegarLoop]: Abstraction has 7160 states and 8413 transitions. [2023-12-20 03:14:55,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 12.558823529411764) internal successors, (427), 33 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:14:55,908 INFO L276 IsEmpty]: Start isEmpty. Operand 7160 states and 8413 transitions. [2023-12-20 03:14:55,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-20 03:14:55,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:14:55,909 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:14:55,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-20 03:14:56,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:14:56,117 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:14:56,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:14:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1961348681, now seen corresponding path program 1 times [2023-12-20 03:14:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:14:56,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658929417] [2023-12-20 03:14:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:14:56,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:14:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:14:56,886 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 34 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:14:56,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:14:56,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658929417] [2023-12-20 03:14:56,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658929417] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:14:56,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580863517] [2023-12-20 03:14:56,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:14:56,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:14:56,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:14:56,888 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:14:56,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-20 03:14:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:14:57,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-20 03:14:57,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:14:57,767 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 38 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:14:57,767 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:14:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 34 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:14:59,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580863517] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:14:59,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:14:59,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 35 [2023-12-20 03:14:59,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193809451] [2023-12-20 03:14:59,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:14:59,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-20 03:14:59,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:14:59,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-20 03:14:59,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1128, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 03:14:59,324 INFO L87 Difference]: Start difference. First operand 7160 states and 8413 transitions. Second operand has 36 states, 36 states have (on average 11.055555555555555) internal successors, (398), 35 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:04,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:15:04,007 INFO L93 Difference]: Finished difference Result 19303 states and 22793 transitions. [2023-12-20 03:15:04,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-20 03:15:04,008 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.055555555555555) internal successors, (398), 35 states have internal predecessors, (398), 0 states have call successors, (0), 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 150 [2023-12-20 03:15:04,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:15:04,020 INFO L225 Difference]: With dead ends: 19303 [2023-12-20 03:15:04,021 INFO L226 Difference]: Without dead ends: 13255 [2023-12-20 03:15:04,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 282 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2302 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2279, Invalid=7821, Unknown=0, NotChecked=0, Total=10100 [2023-12-20 03:15:04,027 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 2627 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 2920 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2627 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:15:04,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2627 Valid, 2833 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2920 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 03:15:04,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13255 states. [2023-12-20 03:15:04,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13255 to 7160. [2023-12-20 03:15:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7160 states, 7159 states have (on average 1.1692973879033384) internal successors, (8371), 7159 states have internal predecessors, (8371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:04,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7160 states to 7160 states and 8371 transitions. [2023-12-20 03:15:04,106 INFO L78 Accepts]: Start accepts. Automaton has 7160 states and 8371 transitions. Word has length 150 [2023-12-20 03:15:04,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:15:04,107 INFO L495 AbstractCegarLoop]: Abstraction has 7160 states and 8371 transitions. [2023-12-20 03:15:04,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 11.055555555555555) internal successors, (398), 35 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:04,107 INFO L276 IsEmpty]: Start isEmpty. Operand 7160 states and 8371 transitions. [2023-12-20 03:15:04,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-20 03:15:04,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:15:04,108 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:15:04,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-20 03:15:04,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:15:04,314 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:15:04,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:15:04,314 INFO L85 PathProgramCache]: Analyzing trace with hash 892873518, now seen corresponding path program 1 times [2023-12-20 03:15:04,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:15:04,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749047258] [2023-12-20 03:15:04,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:04,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:15:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 38 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:04,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:15:04,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749047258] [2023-12-20 03:15:04,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749047258] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:15:04,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805027776] [2023-12-20 03:15:04,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:04,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:15:04,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:15:04,686 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:15:04,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-20 03:15:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:04,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-20 03:15:04,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:15:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 34 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:05,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:15:07,474 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 34 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:07,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805027776] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:15:07,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:15:07,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 16] total 44 [2023-12-20 03:15:07,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707194084] [2023-12-20 03:15:07,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:15:07,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-20 03:15:07,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:15:07,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-20 03:15:07,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1648, Unknown=0, NotChecked=0, Total=1892 [2023-12-20 03:15:07,476 INFO L87 Difference]: Start difference. First operand 7160 states and 8371 transitions. Second operand has 44 states, 44 states have (on average 9.136363636363637) internal successors, (402), 44 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:09,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:15:09,774 INFO L93 Difference]: Finished difference Result 17468 states and 20526 transitions. [2023-12-20 03:15:09,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-20 03:15:09,775 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 9.136363636363637) internal successors, (402), 44 states have internal predecessors, (402), 0 states have call successors, (0), 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 151 [2023-12-20 03:15:09,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:15:09,786 INFO L225 Difference]: With dead ends: 17468 [2023-12-20 03:15:09,786 INFO L226 Difference]: Without dead ends: 13918 [2023-12-20 03:15:09,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2609 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1559, Invalid=7947, Unknown=0, NotChecked=0, Total=9506 [2023-12-20 03:15:09,792 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 2400 mSDsluCounter, 5291 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 5615 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:15:09,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 5615 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 03:15:09,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13918 states. [2023-12-20 03:15:09,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13918 to 9681. [2023-12-20 03:15:09,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9681 states, 9680 states have (on average 1.1678719008264462) internal successors, (11305), 9680 states have internal predecessors, (11305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:09,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9681 states to 9681 states and 11305 transitions. [2023-12-20 03:15:09,877 INFO L78 Accepts]: Start accepts. Automaton has 9681 states and 11305 transitions. Word has length 151 [2023-12-20 03:15:09,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:15:09,877 INFO L495 AbstractCegarLoop]: Abstraction has 9681 states and 11305 transitions. [2023-12-20 03:15:09,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 9.136363636363637) internal successors, (402), 44 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand 9681 states and 11305 transitions. [2023-12-20 03:15:09,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-20 03:15:09,879 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:15:09,879 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:15:09,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-20 03:15:10,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:15:10,087 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:15:10,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:15:10,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1613278123, now seen corresponding path program 1 times [2023-12-20 03:15:10,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:15:10,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918920022] [2023-12-20 03:15:10,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:10,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:15:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 64 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-20 03:15:10,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:15:10,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918920022] [2023-12-20 03:15:10,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918920022] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:15:10,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545426337] [2023-12-20 03:15:10,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:10,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:15:10,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:15:10,640 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:15:10,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-20 03:15:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:10,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-20 03:15:10,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:15:11,792 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 25 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:11,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:15:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 25 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:13,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545426337] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:15:13,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:15:13,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 19] total 57 [2023-12-20 03:15:13,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953451273] [2023-12-20 03:15:13,121 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:15:13,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-12-20 03:15:13,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:15:13,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-12-20 03:15:13,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=3022, Unknown=0, NotChecked=0, Total=3192 [2023-12-20 03:15:13,123 INFO L87 Difference]: Start difference. First operand 9681 states and 11305 transitions. Second operand has 57 states, 57 states have (on average 7.175438596491228) internal successors, (409), 57 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:15:20,180 INFO L93 Difference]: Finished difference Result 16839 states and 19708 transitions. [2023-12-20 03:15:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-20 03:15:20,180 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 7.175438596491228) internal successors, (409), 57 states have internal predecessors, (409), 0 states have call successors, (0), 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 151 [2023-12-20 03:15:20,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:15:20,193 INFO L225 Difference]: With dead ends: 16839 [2023-12-20 03:15:20,194 INFO L226 Difference]: Without dead ends: 15053 [2023-12-20 03:15:20,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2882 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=1382, Invalid=13138, Unknown=0, NotChecked=0, Total=14520 [2023-12-20 03:15:20,201 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 2358 mSDsluCounter, 12426 mSDsCounter, 0 mSdLazyCounter, 4874 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 12789 SdHoareTripleChecker+Invalid, 4888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:15:20,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2358 Valid, 12789 Invalid, 4888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4874 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-20 03:15:20,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15053 states. [2023-12-20 03:15:20,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15053 to 8442. [2023-12-20 03:15:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8442 states, 8441 states have (on average 1.1704774315839355) internal successors, (9880), 8441 states have internal predecessors, (9880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:20,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8442 states to 8442 states and 9880 transitions. [2023-12-20 03:15:20,283 INFO L78 Accepts]: Start accepts. Automaton has 8442 states and 9880 transitions. Word has length 151 [2023-12-20 03:15:20,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:15:20,283 INFO L495 AbstractCegarLoop]: Abstraction has 8442 states and 9880 transitions. [2023-12-20 03:15:20,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 7.175438596491228) internal successors, (409), 57 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:20,284 INFO L276 IsEmpty]: Start isEmpty. Operand 8442 states and 9880 transitions. [2023-12-20 03:15:20,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-20 03:15:20,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:15:20,285 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:15:20,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-20 03:15:20,489 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,SelfDestructingSolverStorable58 [2023-12-20 03:15:20,490 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:15:20,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:15:20,490 INFO L85 PathProgramCache]: Analyzing trace with hash -149659736, now seen corresponding path program 1 times [2023-12-20 03:15:20,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:15:20,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118491844] [2023-12-20 03:15:20,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:20,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:15:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:20,792 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 31 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:20,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:15:20,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118491844] [2023-12-20 03:15:20,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118491844] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:15:20,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435490933] [2023-12-20 03:15:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:20,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:15:20,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:15:20,794 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:15:20,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-20 03:15:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:20,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 03:15:20,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:15:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:21,529 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:15:22,983 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 31 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:22,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435490933] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:15:22,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:15:22,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 25 [2023-12-20 03:15:22,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138761174] [2023-12-20 03:15:22,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:15:22,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-20 03:15:22,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:15:22,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-20 03:15:22,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=557, Unknown=0, NotChecked=0, Total=650 [2023-12-20 03:15:22,985 INFO L87 Difference]: Start difference. First operand 8442 states and 9880 transitions. Second operand has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:15:23,586 INFO L93 Difference]: Finished difference Result 15024 states and 17654 transitions. [2023-12-20 03:15:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 03:15:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-12-20 03:15:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:15:23,593 INFO L225 Difference]: With dead ends: 15024 [2023-12-20 03:15:23,593 INFO L226 Difference]: Without dead ends: 9266 [2023-12-20 03:15:23,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 288 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=397, Invalid=1163, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 03:15:23,597 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1243 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:15:23,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 848 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 03:15:23,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9266 states. [2023-12-20 03:15:23,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9266 to 4968. [2023-12-20 03:15:23,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4968 states, 4967 states have (on average 1.1538151801892491) internal successors, (5731), 4967 states have internal predecessors, (5731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:23,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4968 states to 4968 states and 5731 transitions. [2023-12-20 03:15:23,637 INFO L78 Accepts]: Start accepts. Automaton has 4968 states and 5731 transitions. Word has length 152 [2023-12-20 03:15:23,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:15:23,637 INFO L495 AbstractCegarLoop]: Abstraction has 4968 states and 5731 transitions. [2023-12-20 03:15:23,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.615384615384615) internal successors, (328), 25 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:23,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4968 states and 5731 transitions. [2023-12-20 03:15:23,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-20 03:15:23,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:15:23,638 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:15:23,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-20 03:15:23,843 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,SelfDestructingSolverStorable59 [2023-12-20 03:15:23,845 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:15:23,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:15:23,846 INFO L85 PathProgramCache]: Analyzing trace with hash -570197388, now seen corresponding path program 1 times [2023-12-20 03:15:23,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:15:23,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155581096] [2023-12-20 03:15:23,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:23,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:15:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:24,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:15:24,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155581096] [2023-12-20 03:15:24,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155581096] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:15:24,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627376137] [2023-12-20 03:15:24,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:24,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:15:24,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:15:24,890 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:15:24,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-20 03:15:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:25,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-20 03:15:25,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:15:26,895 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:26,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:15:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:28,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627376137] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:15:28,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:15:28,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 20] total 58 [2023-12-20 03:15:28,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934201990] [2023-12-20 03:15:28,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:15:28,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-20 03:15:28,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:15:28,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-20 03:15:28,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=3085, Unknown=0, NotChecked=0, Total=3306 [2023-12-20 03:15:28,688 INFO L87 Difference]: Start difference. First operand 4968 states and 5731 transitions. Second operand has 58 states, 58 states have (on average 7.327586206896552) internal successors, (425), 58 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:48,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:15:48,883 INFO L93 Difference]: Finished difference Result 12725 states and 14600 transitions. [2023-12-20 03:15:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2023-12-20 03:15:48,884 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.327586206896552) internal successors, (425), 58 states have internal predecessors, (425), 0 states have call successors, (0), 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 152 [2023-12-20 03:15:48,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:15:48,891 INFO L225 Difference]: With dead ends: 12725 [2023-12-20 03:15:48,891 INFO L226 Difference]: Without dead ends: 11299 [2023-12-20 03:15:48,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12872 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=5698, Invalid=38192, Unknown=0, NotChecked=0, Total=43890 [2023-12-20 03:15:48,897 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 5228 mSDsluCounter, 10290 mSDsCounter, 0 mSdLazyCounter, 4548 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5228 SdHoareTripleChecker+Valid, 10630 SdHoareTripleChecker+Invalid, 4601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 4548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-20 03:15:48,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5228 Valid, 10630 Invalid, 4601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 4548 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-20 03:15:48,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2023-12-20 03:15:48,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 4620. [2023-12-20 03:15:48,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4620 states, 4619 states have (on average 1.1502489716388828) internal successors, (5313), 4619 states have internal predecessors, (5313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:48,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 5313 transitions. [2023-12-20 03:15:48,962 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 5313 transitions. Word has length 152 [2023-12-20 03:15:48,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:15:48,962 INFO L495 AbstractCegarLoop]: Abstraction has 4620 states and 5313 transitions. [2023-12-20 03:15:48,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.327586206896552) internal successors, (425), 58 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:15:48,962 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 5313 transitions. [2023-12-20 03:15:48,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-20 03:15:48,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:15:48,963 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:15:48,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-20 03:15:49,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:15:49,168 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:15:49,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:15:49,169 INFO L85 PathProgramCache]: Analyzing trace with hash 683865997, now seen corresponding path program 1 times [2023-12-20 03:15:49,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:15:49,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813936651] [2023-12-20 03:15:49,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:49,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:15:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:49,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:15:49,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813936651] [2023-12-20 03:15:49,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813936651] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:15:49,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26127581] [2023-12-20 03:15:49,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:15:49,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:15:49,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:15:49,915 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:15:49,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-20 03:15:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:15:50,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-20 03:15:50,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:15:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:51,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:15:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:15:54,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26127581] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:15:54,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:15:54,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 24] total 67 [2023-12-20 03:15:54,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556433783] [2023-12-20 03:15:54,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:15:54,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-12-20 03:15:54,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:15:54,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-12-20 03:15:54,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=4098, Unknown=0, NotChecked=0, Total=4422 [2023-12-20 03:15:54,699 INFO L87 Difference]: Start difference. First operand 4620 states and 5313 transitions. Second operand has 67 states, 67 states have (on average 5.970149253731344) internal successors, (400), 67 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:16:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:16:41,125 INFO L93 Difference]: Finished difference Result 11478 states and 13359 transitions. [2023-12-20 03:16:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2023-12-20 03:16:41,125 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 5.970149253731344) internal successors, (400), 67 states have internal predecessors, (400), 0 states have call successors, (0), 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 153 [2023-12-20 03:16:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:16:41,134 INFO L225 Difference]: With dead ends: 11478 [2023-12-20 03:16:41,134 INFO L226 Difference]: Without dead ends: 10044 [2023-12-20 03:16:41,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 261 SyntacticMatches, 1 SemanticMatches, 309 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32812 ImplicationChecksByTransitivity, 42.9s TimeCoverageRelationStatistics Valid=12881, Invalid=83529, Unknown=0, NotChecked=0, Total=96410 [2023-12-20 03:16:41,144 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 7859 mSDsluCounter, 7709 mSDsCounter, 0 mSdLazyCounter, 6733 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7859 SdHoareTripleChecker+Valid, 7883 SdHoareTripleChecker+Invalid, 6993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 6733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:16:41,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7859 Valid, 7883 Invalid, 6993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 6733 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-20 03:16:41,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10044 states. [2023-12-20 03:16:41,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10044 to 5520. [2023-12-20 03:16:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5520 states, 5519 states have (on average 1.1482152563870267) internal successors, (6337), 5519 states have internal predecessors, (6337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:16:41,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5520 states to 5520 states and 6337 transitions. [2023-12-20 03:16:41,193 INFO L78 Accepts]: Start accepts. Automaton has 5520 states and 6337 transitions. Word has length 153 [2023-12-20 03:16:41,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:16:41,193 INFO L495 AbstractCegarLoop]: Abstraction has 5520 states and 6337 transitions. [2023-12-20 03:16:41,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 5.970149253731344) internal successors, (400), 67 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:16:41,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5520 states and 6337 transitions. [2023-12-20 03:16:41,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-20 03:16:41,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:16:41,194 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:16:41,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-20 03:16:41,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:16:41,399 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:16:41,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:16:41,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1266312493, now seen corresponding path program 1 times [2023-12-20 03:16:41,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:16:41,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622626114] [2023-12-20 03:16:41,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:16:41,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:16:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:16:41,498 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-20 03:16:41,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:16:41,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622626114] [2023-12-20 03:16:41,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622626114] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:16:41,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143685430] [2023-12-20 03:16:41,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:16:41,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:16:41,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:16:41,499 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:16:41,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-20 03:16:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:16:41,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-20 03:16:41,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:16:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-20 03:16:41,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:16:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 72 proven. 21 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 03:16:42,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143685430] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:16:42,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:16:42,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2023-12-20 03:16:42,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664784773] [2023-12-20 03:16:42,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:16:42,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 03:16:42,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:16:42,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 03:16:42,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-20 03:16:42,105 INFO L87 Difference]: Start difference. First operand 5520 states and 6337 transitions. Second operand has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 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) [2023-12-20 03:16:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:16:42,197 INFO L93 Difference]: Finished difference Result 13651 states and 16248 transitions. [2023-12-20 03:16:42,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 03:16:42,197 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 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 153 [2023-12-20 03:16:42,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:16:42,203 INFO L225 Difference]: With dead ends: 13651 [2023-12-20 03:16:42,203 INFO L226 Difference]: Without dead ends: 8552 [2023-12-20 03:16:42,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 298 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-20 03:16:42,206 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 385 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 03:16:42,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 825 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 03:16:42,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8552 states. [2023-12-20 03:16:42,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8552 to 8546. [2023-12-20 03:16:42,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8546 states, 8545 states have (on average 1.133996489174956) internal successors, (9690), 8545 states have internal predecessors, (9690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:16:42,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8546 states to 8546 states and 9690 transitions. [2023-12-20 03:16:42,254 INFO L78 Accepts]: Start accepts. Automaton has 8546 states and 9690 transitions. Word has length 153 [2023-12-20 03:16:42,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:16:42,255 INFO L495 AbstractCegarLoop]: Abstraction has 8546 states and 9690 transitions. [2023-12-20 03:16:42,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.666666666666668) internal successors, (320), 12 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) [2023-12-20 03:16:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 8546 states and 9690 transitions. [2023-12-20 03:16:42,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-20 03:16:42,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:16:42,256 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:16:42,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-20 03:16:42,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:16:42,462 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:16:42,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:16:42,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1535018851, now seen corresponding path program 1 times [2023-12-20 03:16:42,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:16:42,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36691370] [2023-12-20 03:16:42,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:16:42,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:16:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:16:42,887 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:16:42,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:16:42,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36691370] [2023-12-20 03:16:42,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36691370] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:16:42,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166084859] [2023-12-20 03:16:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:16:42,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:16:42,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:16:42,888 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:16:42,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-20 03:16:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:16:43,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-20 03:16:43,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:16:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:16:44,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:16:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 22 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:16:45,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166084859] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:16:45,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:16:45,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25, 16] total 49 [2023-12-20 03:16:45,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958713828] [2023-12-20 03:16:45,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:16:45,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-12-20 03:16:45,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:16:45,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-12-20 03:16:45,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=2136, Unknown=0, NotChecked=0, Total=2352 [2023-12-20 03:16:45,733 INFO L87 Difference]: Start difference. First operand 8546 states and 9690 transitions. Second operand has 49 states, 49 states have (on average 8.081632653061224) internal successors, (396), 49 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:16:47,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:16:47,801 INFO L93 Difference]: Finished difference Result 12679 states and 14315 transitions. [2023-12-20 03:16:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-20 03:16:47,803 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 8.081632653061224) internal successors, (396), 49 states have internal predecessors, (396), 0 states have call successors, (0), 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 153 [2023-12-20 03:16:47,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:16:47,812 INFO L225 Difference]: With dead ends: 12679 [2023-12-20 03:16:47,812 INFO L226 Difference]: Without dead ends: 11805 [2023-12-20 03:16:47,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 271 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1954 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1523, Invalid=6849, Unknown=0, NotChecked=0, Total=8372 [2023-12-20 03:16:47,816 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1571 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:16:47,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 3507 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 03:16:47,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11805 states. [2023-12-20 03:16:47,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11805 to 8546. [2023-12-20 03:16:47,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8546 states, 8545 states have (on average 1.1321240491515505) internal successors, (9674), 8545 states have internal predecessors, (9674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:16:47,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8546 states to 8546 states and 9674 transitions. [2023-12-20 03:16:47,890 INFO L78 Accepts]: Start accepts. Automaton has 8546 states and 9674 transitions. Word has length 153 [2023-12-20 03:16:47,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:16:47,891 INFO L495 AbstractCegarLoop]: Abstraction has 8546 states and 9674 transitions. [2023-12-20 03:16:47,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 8.081632653061224) internal successors, (396), 49 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:16:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand 8546 states and 9674 transitions. [2023-12-20 03:16:47,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-20 03:16:47,892 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:16:47,892 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:16:47,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-12-20 03:16:48,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-12-20 03:16:48,097 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:16:48,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:16:48,098 INFO L85 PathProgramCache]: Analyzing trace with hash -910954333, now seen corresponding path program 1 times [2023-12-20 03:16:48,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:16:48,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893299506] [2023-12-20 03:16:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:16:48,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:16:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:16:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 35 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:16:48,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:16:48,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893299506] [2023-12-20 03:16:48,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893299506] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:16:48,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603155320] [2023-12-20 03:16:48,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:16:48,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:16:48,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:16:48,848 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:16:48,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-20 03:16:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:16:48,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-20 03:16:48,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:16:50,231 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 35 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:16:50,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:16:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 35 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:16:51,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603155320] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:16:51,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:16:51,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 21, 20] total 60 [2023-12-20 03:16:51,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988351848] [2023-12-20 03:16:51,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:16:51,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-12-20 03:16:51,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:16:51,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-12-20 03:16:51,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=3341, Unknown=0, NotChecked=0, Total=3540 [2023-12-20 03:16:51,699 INFO L87 Difference]: Start difference. First operand 8546 states and 9674 transitions. Second operand has 60 states, 60 states have (on average 6.8) internal successors, (408), 60 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:06,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:17:06,886 INFO L93 Difference]: Finished difference Result 20949 states and 24038 transitions. [2023-12-20 03:17:06,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2023-12-20 03:17:06,886 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 6.8) internal successors, (408), 60 states have internal predecessors, (408), 0 states have call successors, (0), 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 153 [2023-12-20 03:17:06,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:17:06,899 INFO L225 Difference]: With dead ends: 20949 [2023-12-20 03:17:06,899 INFO L226 Difference]: Without dead ends: 16111 [2023-12-20 03:17:06,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10248 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=3740, Invalid=32170, Unknown=0, NotChecked=0, Total=35910 [2023-12-20 03:17:06,906 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 4017 mSDsluCounter, 12898 mSDsCounter, 0 mSdLazyCounter, 6225 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4017 SdHoareTripleChecker+Valid, 13230 SdHoareTripleChecker+Invalid, 6272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 6225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:17:06,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4017 Valid, 13230 Invalid, 6272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 6225 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-20 03:17:06,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16111 states. [2023-12-20 03:17:06,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16111 to 8498. [2023-12-20 03:17:06,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8498 states, 8497 states have (on average 1.1375779686948335) internal successors, (9666), 8497 states have internal predecessors, (9666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:06,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8498 states to 8498 states and 9666 transitions. [2023-12-20 03:17:06,982 INFO L78 Accepts]: Start accepts. Automaton has 8498 states and 9666 transitions. Word has length 153 [2023-12-20 03:17:06,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:17:06,982 INFO L495 AbstractCegarLoop]: Abstraction has 8498 states and 9666 transitions. [2023-12-20 03:17:06,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 6.8) internal successors, (408), 60 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8498 states and 9666 transitions. [2023-12-20 03:17:06,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-20 03:17:06,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:17:06,984 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:17:06,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-12-20 03:17:07,188 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,SelfDestructingSolverStorable64 [2023-12-20 03:17:07,189 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:17:07,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:17:07,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1241604376, now seen corresponding path program 1 times [2023-12-20 03:17:07,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:17:07,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310680918] [2023-12-20 03:17:07,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:17:07,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:17:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:17:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:17:07,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:17:07,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310680918] [2023-12-20 03:17:07,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310680918] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:17:07,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220336060] [2023-12-20 03:17:07,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:17:07,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:17:07,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:17:07,699 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:17:07,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-20 03:17:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:17:07,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-20 03:17:07,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:17:10,117 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:17:10,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:17:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 40 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:17:12,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220336060] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:17:12,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:17:12,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 24, 24] total 59 [2023-12-20 03:17:12,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558245571] [2023-12-20 03:17:12,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:17:12,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-12-20 03:17:12,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:17:12,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-12-20 03:17:12,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=3129, Unknown=0, NotChecked=0, Total=3422 [2023-12-20 03:17:12,224 INFO L87 Difference]: Start difference. First operand 8498 states and 9666 transitions. Second operand has 59 states, 59 states have (on average 6.762711864406779) internal successors, (399), 59 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:17:25,142 INFO L93 Difference]: Finished difference Result 19227 states and 21948 transitions. [2023-12-20 03:17:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2023-12-20 03:17:25,142 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 6.762711864406779) internal successors, (399), 59 states have internal predecessors, (399), 0 states have call successors, (0), 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 153 [2023-12-20 03:17:25,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:17:25,156 INFO L225 Difference]: With dead ends: 19227 [2023-12-20 03:17:25,156 INFO L226 Difference]: Without dead ends: 15997 [2023-12-20 03:17:25,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9201 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=4631, Invalid=26169, Unknown=0, NotChecked=0, Total=30800 [2023-12-20 03:17:25,163 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 2342 mSDsluCounter, 11340 mSDsCounter, 0 mSdLazyCounter, 5171 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 11763 SdHoareTripleChecker+Invalid, 5189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 5171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:17:25,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2342 Valid, 11763 Invalid, 5189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 5171 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-20 03:17:25,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15997 states. [2023-12-20 03:17:25,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15997 to 10278. [2023-12-20 03:17:25,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10278 states, 10277 states have (on average 1.1317505108494696) internal successors, (11631), 10277 states have internal predecessors, (11631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:25,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10278 states to 10278 states and 11631 transitions. [2023-12-20 03:17:25,251 INFO L78 Accepts]: Start accepts. Automaton has 10278 states and 11631 transitions. Word has length 153 [2023-12-20 03:17:25,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:17:25,251 INFO L495 AbstractCegarLoop]: Abstraction has 10278 states and 11631 transitions. [2023-12-20 03:17:25,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 6.762711864406779) internal successors, (399), 59 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand 10278 states and 11631 transitions. [2023-12-20 03:17:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-20 03:17:25,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:17:25,253 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:17:25,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-12-20 03:17:25,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:17:25,465 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:17:25,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:17:25,465 INFO L85 PathProgramCache]: Analyzing trace with hash -439686143, now seen corresponding path program 1 times [2023-12-20 03:17:25,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:17:25,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702539846] [2023-12-20 03:17:25,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:17:25,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:17:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:17:25,551 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-20 03:17:25,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:17:25,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702539846] [2023-12-20 03:17:25,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702539846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:17:25,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:17:25,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:17:25,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056247886] [2023-12-20 03:17:25,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:17:25,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:17:25,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:17:25,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:17:25,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:17:25,552 INFO L87 Difference]: Start difference. First operand 10278 states and 11631 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 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) [2023-12-20 03:17:25,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:17:25,593 INFO L93 Difference]: Finished difference Result 13616 states and 15493 transitions. [2023-12-20 03:17:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:17:25,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 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 154 [2023-12-20 03:17:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:17:25,600 INFO L225 Difference]: With dead ends: 13616 [2023-12-20 03:17:25,601 INFO L226 Difference]: Without dead ends: 10318 [2023-12-20 03:17:25,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:17:25,605 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 204 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:17:25,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 355 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:17:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2023-12-20 03:17:25,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 10086. [2023-12-20 03:17:25,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10086 states, 10085 states have (on average 1.1215666831928608) internal successors, (11311), 10085 states have internal predecessors, (11311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10086 states to 10086 states and 11311 transitions. [2023-12-20 03:17:25,673 INFO L78 Accepts]: Start accepts. Automaton has 10086 states and 11311 transitions. Word has length 154 [2023-12-20 03:17:25,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:17:25,673 INFO L495 AbstractCegarLoop]: Abstraction has 10086 states and 11311 transitions. [2023-12-20 03:17:25,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 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) [2023-12-20 03:17:25,673 INFO L276 IsEmpty]: Start isEmpty. Operand 10086 states and 11311 transitions. [2023-12-20 03:17:25,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-20 03:17:25,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:17:25,677 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:17:25,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-20 03:17:25,677 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:17:25,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:17:25,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1460754497, now seen corresponding path program 1 times [2023-12-20 03:17:25,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:17:25,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376163383] [2023-12-20 03:17:25,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:17:25,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:17:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:17:26,280 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:17:26,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:17:26,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376163383] [2023-12-20 03:17:26,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376163383] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:17:26,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061621768] [2023-12-20 03:17:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:17:26,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:17:26,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:17:26,282 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:17:26,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-20 03:17:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:17:26,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-20 03:17:26,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:17:27,666 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:17:27,666 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:17:29,246 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:17:29,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061621768] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:17:29,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:17:29,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2023-12-20 03:17:29,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528574823] [2023-12-20 03:17:29,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:17:29,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-20 03:17:29,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:17:29,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-20 03:17:29,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=2400, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 03:17:29,248 INFO L87 Difference]: Start difference. First operand 10086 states and 11311 transitions. Second operand has 52 states, 52 states have (on average 7.730769230769231) internal successors, (402), 51 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:31,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:17:31,451 INFO L93 Difference]: Finished difference Result 18998 states and 21518 transitions. [2023-12-20 03:17:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-20 03:17:31,451 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 7.730769230769231) internal successors, (402), 51 states have internal predecessors, (402), 0 states have call successors, (0), 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 154 [2023-12-20 03:17:31,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:17:31,463 INFO L225 Difference]: With dead ends: 18998 [2023-12-20 03:17:31,463 INFO L226 Difference]: Without dead ends: 15296 [2023-12-20 03:17:31,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 272 SyntacticMatches, 3 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2272 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1268, Invalid=7852, Unknown=0, NotChecked=0, Total=9120 [2023-12-20 03:17:31,469 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1943 mSDsluCounter, 5245 mSDsCounter, 0 mSdLazyCounter, 2197 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 5459 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 2197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 03:17:31,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 5459 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 2197 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 03:17:31,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15296 states. [2023-12-20 03:17:31,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15296 to 8784. [2023-12-20 03:17:31,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8784 states, 8783 states have (on average 1.1197768416258682) internal successors, (9835), 8783 states have internal predecessors, (9835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:31,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8784 states to 8784 states and 9835 transitions. [2023-12-20 03:17:31,553 INFO L78 Accepts]: Start accepts. Automaton has 8784 states and 9835 transitions. Word has length 154 [2023-12-20 03:17:31,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:17:31,553 INFO L495 AbstractCegarLoop]: Abstraction has 8784 states and 9835 transitions. [2023-12-20 03:17:31,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 7.730769230769231) internal successors, (402), 51 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:31,553 INFO L276 IsEmpty]: Start isEmpty. Operand 8784 states and 9835 transitions. [2023-12-20 03:17:31,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-20 03:17:31,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:17:31,554 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:17:31,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-20 03:17:31,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:17:31,761 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:17:31,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:17:31,761 INFO L85 PathProgramCache]: Analyzing trace with hash -845417452, now seen corresponding path program 1 times [2023-12-20 03:17:31,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:17:31,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236985270] [2023-12-20 03:17:31,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:17:31,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:17:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:17:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-20 03:17:31,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:17:31,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236985270] [2023-12-20 03:17:31,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236985270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:17:31,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:17:31,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:17:31,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133784148] [2023-12-20 03:17:31,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:17:31,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:17:31,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:17:31,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:17:31,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:17:31,842 INFO L87 Difference]: Start difference. First operand 8784 states and 9835 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:17:31,876 INFO L93 Difference]: Finished difference Result 9874 states and 11111 transitions. [2023-12-20 03:17:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:17:31,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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 154 [2023-12-20 03:17:31,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:17:31,883 INFO L225 Difference]: With dead ends: 9874 [2023-12-20 03:17:31,883 INFO L226 Difference]: Without dead ends: 8968 [2023-12-20 03:17:31,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:17:31,886 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 206 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:17:31,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 360 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:17:31,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8968 states. [2023-12-20 03:17:31,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8968 to 8736. [2023-12-20 03:17:31,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8736 states, 8735 states have (on average 1.1167716084716657) internal successors, (9755), 8735 states have internal predecessors, (9755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:31,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8736 states to 8736 states and 9755 transitions. [2023-12-20 03:17:31,941 INFO L78 Accepts]: Start accepts. Automaton has 8736 states and 9755 transitions. Word has length 154 [2023-12-20 03:17:31,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:17:31,942 INFO L495 AbstractCegarLoop]: Abstraction has 8736 states and 9755 transitions. [2023-12-20 03:17:31,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:17:31,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8736 states and 9755 transitions. [2023-12-20 03:17:31,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-20 03:17:31,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:17:31,943 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:17:31,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-20 03:17:31,943 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:17:31,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:17:31,943 INFO L85 PathProgramCache]: Analyzing trace with hash -144352874, now seen corresponding path program 1 times [2023-12-20 03:17:31,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:17:31,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957786489] [2023-12-20 03:17:31,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:17:31,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:17:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:17:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 22 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:17:32,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:17:32,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957786489] [2023-12-20 03:17:32,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957786489] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:17:32,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823908934] [2023-12-20 03:17:32,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:17:32,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:17:32,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:17:32,870 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:17:32,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-20 03:17:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:17:33,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-20 03:17:33,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:17:35,695 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 22 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:17:35,695 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:17:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 22 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:17:38,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823908934] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:17:38,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:17:38,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 30, 24] total 72 [2023-12-20 03:17:38,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971457970] [2023-12-20 03:17:38,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:17:38,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-12-20 03:17:38,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:17:38,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-12-20 03:17:38,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=4751, Unknown=0, NotChecked=0, Total=5256 [2023-12-20 03:17:38,708 INFO L87 Difference]: Start difference. First operand 8736 states and 9755 transitions. Second operand has 73 states, 73 states have (on average 6.027397260273973) internal successors, (440), 72 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:18:17,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:18:17,383 INFO L93 Difference]: Finished difference Result 14749 states and 16266 transitions. [2023-12-20 03:18:17,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2023-12-20 03:18:17,383 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 6.027397260273973) internal successors, (440), 72 states have internal predecessors, (440), 0 states have call successors, (0), 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 154 [2023-12-20 03:18:17,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:18:17,395 INFO L225 Difference]: With dead ends: 14749 [2023-12-20 03:18:17,395 INFO L226 Difference]: Without dead ends: 13625 [2023-12-20 03:18:17,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29412 ImplicationChecksByTransitivity, 34.6s TimeCoverageRelationStatistics Valid=8531, Invalid=72979, Unknown=0, NotChecked=0, Total=81510 [2023-12-20 03:18:17,404 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 6574 mSDsluCounter, 8827 mSDsCounter, 0 mSdLazyCounter, 8674 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6574 SdHoareTripleChecker+Valid, 9101 SdHoareTripleChecker+Invalid, 8856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 8674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-20 03:18:17,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6574 Valid, 9101 Invalid, 8856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 8674 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-20 03:18:17,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13625 states. [2023-12-20 03:18:17,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13625 to 8337. [2023-12-20 03:18:17,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8337 states, 8336 states have (on average 1.118162188099808) internal successors, (9321), 8336 states have internal predecessors, (9321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:18:17,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8337 states to 8337 states and 9321 transitions. [2023-12-20 03:18:17,480 INFO L78 Accepts]: Start accepts. Automaton has 8337 states and 9321 transitions. Word has length 154 [2023-12-20 03:18:17,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:18:17,480 INFO L495 AbstractCegarLoop]: Abstraction has 8337 states and 9321 transitions. [2023-12-20 03:18:17,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 6.027397260273973) internal successors, (440), 72 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:18:17,481 INFO L276 IsEmpty]: Start isEmpty. Operand 8337 states and 9321 transitions. [2023-12-20 03:18:17,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-20 03:18:17,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:18:17,482 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:18:17,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-12-20 03:18:17,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-12-20 03:18:17,688 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:18:17,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:18:17,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1148756327, now seen corresponding path program 1 times [2023-12-20 03:18:17,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:18:17,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073890215] [2023-12-20 03:18:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:18:17,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:18:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:18:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-20 03:18:17,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:18:17,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073890215] [2023-12-20 03:18:17,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073890215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 03:18:17,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 03:18:17,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 03:18:17,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073191378] [2023-12-20 03:18:17,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 03:18:17,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 03:18:17,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:18:17,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 03:18:17,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 03:18:17,771 INFO L87 Difference]: Start difference. First operand 8337 states and 9321 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:18:17,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:18:17,818 INFO L93 Difference]: Finished difference Result 11279 states and 12677 transitions. [2023-12-20 03:18:17,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 03:18:17,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 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 154 [2023-12-20 03:18:17,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:18:17,825 INFO L225 Difference]: With dead ends: 11279 [2023-12-20 03:18:17,825 INFO L226 Difference]: Without dead ends: 8353 [2023-12-20 03:18:17,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 03:18:17,828 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 197 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 03:18:17,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 403 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 03:18:17,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8353 states. [2023-12-20 03:18:17,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8353 to 8121. [2023-12-20 03:18:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8121 states, 8120 states have (on average 1.1035714285714286) internal successors, (8961), 8120 states have internal predecessors, (8961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:18:17,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8121 states to 8121 states and 8961 transitions. [2023-12-20 03:18:17,885 INFO L78 Accepts]: Start accepts. Automaton has 8121 states and 8961 transitions. Word has length 154 [2023-12-20 03:18:17,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:18:17,885 INFO L495 AbstractCegarLoop]: Abstraction has 8121 states and 8961 transitions. [2023-12-20 03:18:17,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:18:17,885 INFO L276 IsEmpty]: Start isEmpty. Operand 8121 states and 8961 transitions. [2023-12-20 03:18:17,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-20 03:18:17,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:18:17,886 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:18:17,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2023-12-20 03:18:17,886 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:18:17,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:18:17,886 INFO L85 PathProgramCache]: Analyzing trace with hash -726054501, now seen corresponding path program 1 times [2023-12-20 03:18:17,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:18:17,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458383205] [2023-12-20 03:18:17,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:18:17,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:18:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:18:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:18:18,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:18:18,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458383205] [2023-12-20 03:18:18,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458383205] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:18:18,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366958648] [2023-12-20 03:18:18,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:18:18,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:18:18,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:18:18,739 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) [2023-12-20 03:18:18,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-12-20 03:18:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:18:18,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-20 03:18:18,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:18:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:18:21,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:18:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 40 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:18:24,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366958648] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:18:24,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:18:24,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 26, 25] total 70 [2023-12-20 03:18:24,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101742138] [2023-12-20 03:18:24,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:18:24,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-12-20 03:18:24,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:18:24,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-12-20 03:18:24,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=450, Invalid=4520, Unknown=0, NotChecked=0, Total=4970 [2023-12-20 03:18:24,337 INFO L87 Difference]: Start difference. First operand 8121 states and 8961 transitions. Second operand has 71 states, 71 states have (on average 5.915492957746479) internal successors, (420), 70 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:18:56,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:18:56,635 INFO L93 Difference]: Finished difference Result 15530 states and 17288 transitions. [2023-12-20 03:18:56,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2023-12-20 03:18:56,636 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 5.915492957746479) internal successors, (420), 70 states have internal predecessors, (420), 0 states have call successors, (0), 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 154 [2023-12-20 03:18:56,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:18:56,642 INFO L225 Difference]: With dead ends: 15530 [2023-12-20 03:18:56,642 INFO L226 Difference]: Without dead ends: 9980 [2023-12-20 03:18:56,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31752 ImplicationChecksByTransitivity, 29.5s TimeCoverageRelationStatistics Valid=10389, Invalid=80513, Unknown=0, NotChecked=0, Total=90902 [2023-12-20 03:18:56,650 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 5118 mSDsluCounter, 7205 mSDsCounter, 0 mSdLazyCounter, 7530 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5118 SdHoareTripleChecker+Valid, 7479 SdHoareTripleChecker+Invalid, 7773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 7530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:18:56,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5118 Valid, 7479 Invalid, 7773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 7530 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-20 03:18:56,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2023-12-20 03:18:56,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 5225. [2023-12-20 03:18:56,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 1.1008805513016846) internal successors, (5751), 5224 states have internal predecessors, (5751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:18:56,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 5751 transitions. [2023-12-20 03:18:56,693 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 5751 transitions. Word has length 154 [2023-12-20 03:18:56,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:18:56,693 INFO L495 AbstractCegarLoop]: Abstraction has 5225 states and 5751 transitions. [2023-12-20 03:18:56,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 5.915492957746479) internal successors, (420), 70 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:18:56,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 5751 transitions. [2023-12-20 03:18:56,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-20 03:18:56,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:18:56,694 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:18:56,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-12-20 03:18:56,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2023-12-20 03:18:56,899 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:18:56,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:18:56,899 INFO L85 PathProgramCache]: Analyzing trace with hash 733762706, now seen corresponding path program 1 times [2023-12-20 03:18:56,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:18:56,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643343765] [2023-12-20 03:18:56,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:18:56,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:18:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:18:57,792 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 68 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-20 03:18:57,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:18:57,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643343765] [2023-12-20 03:18:57,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643343765] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:18:57,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193608941] [2023-12-20 03:18:57,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:18:57,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:18:57,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:18:57,794 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:18:57,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-12-20 03:18:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:18:57,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-20 03:18:57,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:19:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:19:00,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:19:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 50 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:19:03,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193608941] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:19:03,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:19:03,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 26] total 74 [2023-12-20 03:19:03,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978964556] [2023-12-20 03:19:03,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:19:03,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-12-20 03:19:03,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:19:03,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-12-20 03:19:03,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=5124, Unknown=0, NotChecked=0, Total=5550 [2023-12-20 03:19:03,578 INFO L87 Difference]: Start difference. First operand 5225 states and 5751 transitions. Second operand has 75 states, 75 states have (on average 5.733333333333333) internal successors, (430), 74 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:19:12,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:19:12,057 INFO L93 Difference]: Finished difference Result 15658 states and 17549 transitions. [2023-12-20 03:19:12,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-20 03:19:12,058 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 5.733333333333333) internal successors, (430), 74 states have internal predecessors, (430), 0 states have call successors, (0), 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 160 [2023-12-20 03:19:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:19:12,073 INFO L225 Difference]: With dead ends: 15658 [2023-12-20 03:19:12,074 INFO L226 Difference]: Without dead ends: 12875 [2023-12-20 03:19:12,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6460 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3449, Invalid=22957, Unknown=0, NotChecked=0, Total=26406 [2023-12-20 03:19:12,085 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 2703 mSDsluCounter, 11905 mSDsCounter, 0 mSdLazyCounter, 5420 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 12291 SdHoareTripleChecker+Invalid, 5455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 5420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 03:19:12,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2703 Valid, 12291 Invalid, 5455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 5420 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 03:19:12,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12875 states. [2023-12-20 03:19:12,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12875 to 4581. [2023-12-20 03:19:12,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4581 states, 4580 states have (on average 1.1039301310043668) internal successors, (5056), 4580 states have internal predecessors, (5056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:19:12,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 5056 transitions. [2023-12-20 03:19:12,144 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 5056 transitions. Word has length 160 [2023-12-20 03:19:12,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:19:12,144 INFO L495 AbstractCegarLoop]: Abstraction has 4581 states and 5056 transitions. [2023-12-20 03:19:12,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 5.733333333333333) internal successors, (430), 74 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:19:12,145 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 5056 transitions. [2023-12-20 03:19:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-12-20 03:19:12,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:19:12,146 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 03:19:12,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-12-20 03:19:12,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:19:12,349 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:19:12,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:19:12,349 INFO L85 PathProgramCache]: Analyzing trace with hash 561526948, now seen corresponding path program 1 times [2023-12-20 03:19:12,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:19:12,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412980306] [2023-12-20 03:19:12,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:19:12,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:19:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:19:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 45 proven. 186 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 03:19:14,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:19:14,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412980306] [2023-12-20 03:19:14,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412980306] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:19:14,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963875609] [2023-12-20 03:19:14,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:19:14,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:19:14,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:19:14,267 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:19:14,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-12-20 03:19:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:19:14,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-20 03:19:14,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:19:16,234 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 55 proven. 195 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 03:19:16,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:19:18,242 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 73 proven. 177 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 03:19:18,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963875609] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:19:18,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:19:18,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 22, 20] total 69 [2023-12-20 03:19:18,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300201705] [2023-12-20 03:19:18,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:19:18,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2023-12-20 03:19:18,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:19:18,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2023-12-20 03:19:18,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=4364, Unknown=0, NotChecked=0, Total=4692 [2023-12-20 03:19:18,244 INFO L87 Difference]: Start difference. First operand 4581 states and 5056 transitions. Second operand has 69 states, 69 states have (on average 8.043478260869565) internal successors, (555), 69 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:19:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:19:31,264 INFO L93 Difference]: Finished difference Result 9740 states and 10956 transitions. [2023-12-20 03:19:31,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-12-20 03:19:31,264 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 8.043478260869565) internal successors, (555), 69 states have internal predecessors, (555), 0 states have call successors, (0), 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 202 [2023-12-20 03:19:31,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:19:31,272 INFO L225 Difference]: With dead ends: 9740 [2023-12-20 03:19:31,272 INFO L226 Difference]: Without dead ends: 9006 [2023-12-20 03:19:31,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5649 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=3168, Invalid=20702, Unknown=0, NotChecked=0, Total=23870 [2023-12-20 03:19:31,277 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 2062 mSDsluCounter, 12355 mSDsCounter, 0 mSdLazyCounter, 5167 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 12670 SdHoareTripleChecker+Invalid, 5192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 5167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:19:31,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2062 Valid, 12670 Invalid, 5192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 5167 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-20 03:19:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9006 states. [2023-12-20 03:19:31,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9006 to 4060. [2023-12-20 03:19:31,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4060 states, 4059 states have (on average 1.1047055925104705) internal successors, (4484), 4059 states have internal predecessors, (4484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:19:31,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4060 states to 4060 states and 4484 transitions. [2023-12-20 03:19:31,318 INFO L78 Accepts]: Start accepts. Automaton has 4060 states and 4484 transitions. Word has length 202 [2023-12-20 03:19:31,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:19:31,318 INFO L495 AbstractCegarLoop]: Abstraction has 4060 states and 4484 transitions. [2023-12-20 03:19:31,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 8.043478260869565) internal successors, (555), 69 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:19:31,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4060 states and 4484 transitions. [2023-12-20 03:19:31,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-20 03:19:31,319 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:19:31,319 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-12-20 03:19:31,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-12-20 03:19:31,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:19:31,525 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:19:31,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:19:31,525 INFO L85 PathProgramCache]: Analyzing trace with hash -586476860, now seen corresponding path program 1 times [2023-12-20 03:19:31,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:19:31,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115354821] [2023-12-20 03:19:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:19:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:19:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:19:32,112 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 127 proven. 237 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-20 03:19:32,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:19:32,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115354821] [2023-12-20 03:19:32,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115354821] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:19:32,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914460227] [2023-12-20 03:19:32,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:19:32,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:19:32,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:19:32,114 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:19:32,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-12-20 03:19:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:19:32,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 101 conjunts are in the unsatisfiable core [2023-12-20 03:19:32,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:19:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 284 proven. 145 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-12-20 03:19:35,630 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:19:49,246 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 38 proven. 442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 03:19:49,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914460227] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:19:49,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:19:49,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 38, 46] total 97 [2023-12-20 03:19:49,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915947945] [2023-12-20 03:19:49,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:19:49,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-12-20 03:19:49,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:19:49,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-12-20 03:19:49,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1701, Invalid=7611, Unknown=0, NotChecked=0, Total=9312 [2023-12-20 03:19:49,249 INFO L87 Difference]: Start difference. First operand 4060 states and 4484 transitions. Second operand has 97 states, 97 states have (on average 6.463917525773196) internal successors, (627), 97 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:20:34,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:20:34,711 INFO L93 Difference]: Finished difference Result 8112 states and 8918 transitions. [2023-12-20 03:20:34,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-12-20 03:20:34,711 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 6.463917525773196) internal successors, (627), 97 states have internal predecessors, (627), 0 states have call successors, (0), 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 248 [2023-12-20 03:20:34,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:20:34,715 INFO L225 Difference]: With dead ends: 8112 [2023-12-20 03:20:34,715 INFO L226 Difference]: Without dead ends: 5864 [2023-12-20 03:20:34,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 416 SyntacticMatches, 1 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15349 ImplicationChecksByTransitivity, 45.6s TimeCoverageRelationStatistics Valid=9773, Invalid=39289, Unknown=0, NotChecked=0, Total=49062 [2023-12-20 03:20:34,719 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 2574 mSDsluCounter, 7397 mSDsCounter, 0 mSdLazyCounter, 4778 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2574 SdHoareTripleChecker+Valid, 7604 SdHoareTripleChecker+Invalid, 4853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 4778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-20 03:20:34,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2574 Valid, 7604 Invalid, 4853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 4778 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-20 03:20:34,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5864 states. [2023-12-20 03:20:34,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5864 to 3530. [2023-12-20 03:20:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 3529 states have (on average 1.1014451686030038) internal successors, (3887), 3529 states have internal predecessors, (3887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:20:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 3887 transitions. [2023-12-20 03:20:34,744 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 3887 transitions. Word has length 248 [2023-12-20 03:20:34,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:20:34,745 INFO L495 AbstractCegarLoop]: Abstraction has 3530 states and 3887 transitions. [2023-12-20 03:20:34,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 6.463917525773196) internal successors, (627), 97 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:20:34,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 3887 transitions. [2023-12-20 03:20:34,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-20 03:20:34,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:20:34,746 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2023-12-20 03:20:34,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-12-20 03:20:34,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2023-12-20 03:20:34,952 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:20:34,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:20:34,953 INFO L85 PathProgramCache]: Analyzing trace with hash 197822367, now seen corresponding path program 1 times [2023-12-20 03:20:34,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:20:34,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140311334] [2023-12-20 03:20:34,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:20:34,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:20:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:20:35,653 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 84 proven. 376 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-20 03:20:35,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:20:35,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140311334] [2023-12-20 03:20:35,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140311334] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:20:35,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964390852] [2023-12-20 03:20:35,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:20:35,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:20:35,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:20:35,655 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:20:35,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-12-20 03:20:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:20:35,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-20 03:20:35,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:20:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 110 proven. 318 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-20 03:20:37,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:20:41,464 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 132 proven. 326 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-20 03:20:41,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964390852] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:20:41,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:20:41,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22, 22] total 59 [2023-12-20 03:20:41,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855012377] [2023-12-20 03:20:41,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:20:41,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-12-20 03:20:41,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:20:41,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-12-20 03:20:41,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=3036, Unknown=0, NotChecked=0, Total=3422 [2023-12-20 03:20:41,466 INFO L87 Difference]: Start difference. First operand 3530 states and 3887 transitions. Second operand has 59 states, 59 states have (on average 11.11864406779661) internal successors, (656), 59 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:20:47,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:20:47,390 INFO L93 Difference]: Finished difference Result 5268 states and 5811 transitions. [2023-12-20 03:20:47,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-20 03:20:47,390 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 11.11864406779661) internal successors, (656), 59 states have internal predecessors, (656), 0 states have call successors, (0), 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 248 [2023-12-20 03:20:47,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:20:47,392 INFO L225 Difference]: With dead ends: 5268 [2023-12-20 03:20:47,392 INFO L226 Difference]: Without dead ends: 2446 [2023-12-20 03:20:47,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3051 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=2739, Invalid=11541, Unknown=0, NotChecked=0, Total=14280 [2023-12-20 03:20:47,395 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 1238 mSDsluCounter, 5130 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 5282 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 03:20:47,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 5282 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2585 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 03:20:47,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2023-12-20 03:20:47,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 1018. [2023-12-20 03:20:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1017 states have (on average 1.0943952802359882) internal successors, (1113), 1017 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:20:47,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1113 transitions. [2023-12-20 03:20:47,403 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1113 transitions. Word has length 248 [2023-12-20 03:20:47,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:20:47,403 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1113 transitions. [2023-12-20 03:20:47,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 11.11864406779661) internal successors, (656), 59 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:20:47,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1113 transitions. [2023-12-20 03:20:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-20 03:20:47,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 03:20:47,404 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2023-12-20 03:20:47,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-12-20 03:20:47,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:20:47,611 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-20 03:20:47,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 03:20:47,611 INFO L85 PathProgramCache]: Analyzing trace with hash 704204896, now seen corresponding path program 1 times [2023-12-20 03:20:47,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 03:20:47,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811126542] [2023-12-20 03:20:47,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:20:47,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 03:20:47,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:20:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 440 proven. 207 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-20 03:20:48,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 03:20:48,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811126542] [2023-12-20 03:20:48,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811126542] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 03:20:48,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896500123] [2023-12-20 03:20:48,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 03:20:48,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 03:20:48,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 03:20:48,271 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 03:20:48,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-12-20 03:20:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 03:20:48,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 978 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-20 03:20:48,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 03:20:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 488 proven. 233 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-20 03:20:49,994 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 03:20:51,956 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 557 proven. 164 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-20 03:20:51,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896500123] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 03:20:51,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 03:20:51,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23, 21] total 59 [2023-12-20 03:20:51,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955809188] [2023-12-20 03:20:51,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 03:20:51,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-12-20 03:20:51,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 03:20:51,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-12-20 03:20:51,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=3219, Unknown=0, NotChecked=0, Total=3422 [2023-12-20 03:20:51,959 INFO L87 Difference]: Start difference. First operand 1018 states and 1113 transitions. Second operand has 59 states, 59 states have (on average 11.0) internal successors, (649), 59 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:21:03,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 03:21:03,770 INFO L93 Difference]: Finished difference Result 1562 states and 1687 transitions. [2023-12-20 03:21:03,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-12-20 03:21:03,770 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 11.0) internal successors, (649), 59 states have internal predecessors, (649), 0 states have call successors, (0), 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 298 [2023-12-20 03:21:03,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 03:21:03,771 INFO L225 Difference]: With dead ends: 1562 [2023-12-20 03:21:03,771 INFO L226 Difference]: Without dead ends: 0 [2023-12-20 03:21:03,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 697 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3351 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=2639, Invalid=14131, Unknown=0, NotChecked=0, Total=16770 [2023-12-20 03:21:03,773 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1113 mSDsluCounter, 4876 mSDsCounter, 0 mSdLazyCounter, 3057 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 5062 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 3057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 03:21:03,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 5062 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 3057 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 03:21:03,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-20 03:21:03,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-20 03:21:03,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:21:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-20 03:21:03,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 298 [2023-12-20 03:21:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 03:21:03,774 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-20 03:21:03,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 11.0) internal successors, (649), 59 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 03:21:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-20 03:21:03,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-20 03:21:03,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-12-20 03:21:03,776 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-20 03:21:03,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-20 03:21:03,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-20 03:21:03,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-20 03:21:03,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-20 03:21:03,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-20 03:21:03,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-12-20 03:21:03,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-12-20 03:21:03,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L828(lines 828 1062) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 631) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L1522(lines 1522 1648) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L1357(lines 1357 1505) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L1225(lines 1225 1255) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 1721) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L1027(lines 1027 1037) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L928(line 928) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L697(lines 697 728) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L631(line 631) no Hoare annotation was computed. [2023-12-20 03:21:03,988 INFO L899 garLoopResultBuilder]: For program point L1622(lines 1622 1629) no Hoare annotation was computed. [2023-12-20 03:21:03,989 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 521) no Hoare annotation was computed. [2023-12-20 03:21:03,989 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 658) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L1292(lines 1292 1315) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L764(lines 764 772) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L1557(lines 1557 1564) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 520) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L1524(lines 1524 1587) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L467(lines 455 475) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L1227(lines 1227 1250) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 1716) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L831(lines 828 1062) no Hoare annotation was computed. [2023-12-20 03:21:03,990 INFO L899 garLoopResultBuilder]: For program point L402(lines 402 411) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 431) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 652) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L1195(lines 1195 1329) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L865(lines 865 889) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L766(line 766) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L502(lines 502 515) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 444) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L1460(lines 1460 1490) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 573) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L238(lines 238 1086) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 1105) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 1711) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L833(lines 826 1068) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 798) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 425) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L1395(lines 1395 1425) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 495) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L966(lines 966 1055) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L900(lines 900 942) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L1462(lines 1462 1485) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L273(lines 270 652) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L240(lines 240 1080) no Hoare annotation was computed. [2023-12-20 03:21:03,991 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 1100) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 1655) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L108(lines 108 1706) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L1132(lines 1132 1176) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L1000(lines 1000 1008) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 727) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L505(lines 502 515) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 719) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L1397(lines 1397 1420) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 490) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 1179) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L1365(lines 1365 1499) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L275(lines 268 658) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L110(lines 110 1701) no Hoare annotation was computed. [2023-12-20 03:21:03,992 INFO L899 garLoopResultBuilder]: For program point L1134(lines 1134 1171) no Hoare annotation was computed. [2023-12-20 03:21:03,993 INFO L899 garLoopResultBuilder]: For program point L1002(line 1002) no Hoare annotation was computed. [2023-12-20 03:21:03,993 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 74 1743) no Hoare annotation was computed. [2023-12-20 03:21:03,993 INFO L899 garLoopResultBuilder]: For program point L837(lines 837 954) no Hoare annotation was computed. [2023-12-20 03:21:03,993 INFO L899 garLoopResultBuilder]: For program point L738(lines 738 780) no Hoare annotation was computed. [2023-12-20 03:21:03,993 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 881) no Hoare annotation was computed. [2023-12-20 03:21:03,993 INFO L899 garLoopResultBuilder]: For program point L243(lines 240 1080) no Hoare annotation was computed. [2023-12-20 03:21:03,993 INFO L899 garLoopResultBuilder]: For program point L970(lines 970 1050) no Hoare annotation was computed. [2023-12-20 03:21:03,993 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 645) no Hoare annotation was computed. [2023-12-20 03:21:03,993 INFO L899 garLoopResultBuilder]: For program point L343(lines 338 495) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L310(lines 309 573) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 766) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L1202(lines 1202 1328) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 1696) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L377(lines 369 431) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L1302(lines 1302 1309) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L245(lines 238 1086) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L972(lines 972 1044) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L675(lines 675 792) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L609(lines 609 640) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 928) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L345(lines 334 521) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L1237(lines 1237 1244) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L1204(lines 1204 1267) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 1691) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 949) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L148(lines 148 1654) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L1602(lines 1602 1646) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L512(lines 500 520) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L314(lines 314 571) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 1178) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 1686) no Hoare annotation was computed. [2023-12-20 03:21:03,994 INFO L899 garLoopResultBuilder]: For program point L1140(lines 1140 1170) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L975(lines 972 1044) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L843(lines 843 943) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L1537(lines 1537 1581) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L1372(lines 1372 1498) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 810) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 1338) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L679(lines 679 787) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L1604(lines 1604 1641) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 489) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L1472(lines 1472 1479) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L382(lines 240 1080) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 476) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 545) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 1094) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 1117) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 1681) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L1142(lines 1142 1165) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L977(lines 970 1050) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L1539(lines 1539 1576) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L416(lines 416 424) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L1407(lines 1407 1414) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L1374(lines 1374 1437) no Hoare annotation was computed. [2023-12-20 03:21:03,995 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 590) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L912(lines 912 936) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L879(lines 879 887) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L846(lines 843 943) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L681(lines 681 781) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L615(lines 615 639) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 1676) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 570) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 1002) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L319(lines 316 545) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 585) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L253(lines 253 805) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L881(line 881) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L848(lines 841 949) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 1079) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L353(lines 353 450) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L122(lines 122 1671) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L750(lines 750 774) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L717(lines 717 725) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L684(lines 681 781) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 565) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 799) no Hoare annotation was computed. [2023-12-20 03:21:03,996 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1043) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L1610(lines 1610 1640) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 397) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 445) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L223(lines 148 1654) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 1666) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L719(line 719) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L686(lines 679 787) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L1545(lines 1545 1575) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L455(lines 455 475) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 540) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 1332) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L1612(lines 1612 1635) no Hoare annotation was computed. [2023-12-20 03:21:03,997 INFO L899 garLoopResultBuilder]: For program point L555(lines 552 565) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L390(line 390) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L1348(lines 1348 1652) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L258(lines 255 799) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L1282(lines 1282 1326) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L1547(lines 1547 1570) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L457(lines 457 470) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L358(lines 353 450) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 535) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L292(lines 292 584) no Hoare annotation was computed. [2023-12-20 03:21:03,999 INFO L899 garLoopResultBuilder]: For program point L1217(lines 1217 1261) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 1741) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L986(lines 986 1010) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L1515(lines 1515 1649) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L260(lines 253 805) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L1284(lines 1284 1321) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 1092) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L1152(lines 1152 1159) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L822(lines 822 1073) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L360(lines 349 476) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 579) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L1219(lines 1219 1256) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 1661) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 1736) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 534) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L460(lines 457 470) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L328(lines 323 540) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L229(lines 229 1087) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L857(lines 857 895) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L1452(lines 1452 1496) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 1111) no Hoare annotation was computed. [2023-12-20 03:21:04,000 INFO L899 garLoopResultBuilder]: For program point L98(lines 98 1731) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 390) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L1387(lines 1387 1431) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L330(lines 314 571) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 663) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 1331) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L859(lines 859 890) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 1068) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 651) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L562(lines 550 570) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L1454(lines 1454 1491) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L1355(lines 1355 1651) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 1106) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 1726) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point $Ultimate##118(lines 374 412) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L959(lines 959 1061) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 934) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 733) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L629(lines 629 637) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L1389(lines 1389 1426) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L1290(lines 1290 1320) no Hoare annotation was computed. [2023-12-20 03:21:04,001 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 1185) no Hoare annotation was computed. [2023-12-20 03:21:04,017 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-20 03:21:04,019 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 03:21:04,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 03:21:04 BoogieIcfgContainer [2023-12-20 03:21:04,039 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 03:21:04,039 INFO L158 Benchmark]: Toolchain (without parser) took 673024.03ms. Allocated memory was 201.3MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 161.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. [2023-12-20 03:21:04,039 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 201.3MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 03:21:04,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.56ms. Allocated memory is still 201.3MB. Free memory was 161.3MB in the beginning and 130.2MB in the end (delta: 31.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-20 03:21:04,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.17ms. Allocated memory is still 201.3MB. Free memory was 130.2MB in the beginning and 125.3MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 03:21:04,039 INFO L158 Benchmark]: Boogie Preprocessor took 121.68ms. Allocated memory is still 201.3MB. Free memory was 125.3MB in the beginning and 120.0MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 03:21:04,039 INFO L158 Benchmark]: RCFGBuilder took 854.48ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 130.9MB in the end (delta: -10.9MB). Peak memory consumption was 25.5MB. Max. memory is 8.0GB. [2023-12-20 03:21:04,039 INFO L158 Benchmark]: TraceAbstraction took 671552.56ms. Allocated memory was 201.3MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 130.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. [2023-12-20 03:21:04,040 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 201.3MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 426.56ms. Allocated memory is still 201.3MB. Free memory was 161.3MB in the beginning and 130.2MB in the end (delta: 31.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.17ms. Allocated memory is still 201.3MB. Free memory was 130.2MB in the beginning and 125.3MB in the end (delta: 5.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 121.68ms. Allocated memory is still 201.3MB. Free memory was 125.3MB in the beginning and 120.0MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 854.48ms. Allocated memory is still 201.3MB. Free memory was 120.0MB in the beginning and 130.9MB in the end (delta: -10.9MB). Peak memory consumption was 25.5MB. Max. memory is 8.0GB. * TraceAbstraction took 671552.56ms. Allocated memory was 201.3MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 130.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 390]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 631]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 719]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 766]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 881]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 928]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 1002]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 204 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 671.5s, OverallIterations: 77, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 505.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157519 SdHoareTripleChecker+Valid, 91.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157519 mSDsluCounter, 310692 SdHoareTripleChecker+Invalid, 80.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 292357 mSDsCounter, 2534 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 160683 IncrementalHoareTripleChecker+Invalid, 163217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2534 mSolverCounterUnsat, 18335 mSDtfsCounter, 160683 mSolverCounterSat, 1.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15668 GetRequests, 8867 SyntacticMatches, 25 SemanticMatches, 6776 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728114 ImplicationChecksByTransitivity, 441.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104096occurred in iteration=43, InterpolantAutomatonStates: 5237, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.3s AutomataMinimizationTime, 77 MinimizatonAttempts, 1148263 StatesRemovedByMinimization, 71 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FormulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FormulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 135.4s InterpolantComputationTime, 12961 NumberOfCodeBlocks, 12961 NumberOfCodeBlocksAsserted, 112 NumberOfCheckSat, 17752 ConstructedInterpolants, 0 QuantifiedInterpolants, 337208 SizeOfPredicates, 434 NumberOfNonLiveVariables, 18779 ConjunctsInSsa, 1176 ConjunctsInUnsatCore, 147 InterpolantComputations, 42 PerfectInterpolantSequences, 5321/11447 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-12-20 03:21:04,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...