/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:45:09,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:45:09,428 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 02:45:09,435 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:45:09,435 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:45:09,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:45:09,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:45:09,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:45:09,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:45:09,473 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:45:09,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:45:09,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:45:09,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:45:09,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:45:09,475 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:45:09,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:45:09,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:45:09,475 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:45:09,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:45:09,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:45:09,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:45:09,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:45:09,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:45:09,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:45:09,478 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:45:09,479 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:45:09,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:45:09,479 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:45:09,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:45:09,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:45:09,481 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:45:09,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:45:09,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:45:09,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:45:09,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:45:09,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:45:09,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:45:09,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:45:09,482 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:45:09,482 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:45:09,482 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:45:09,482 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:45:09,482 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:45:09,483 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:45:09,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:45:09,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:45:09,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:45:09,743 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:45:09,744 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:45:09,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-12-20 02:45:10,903 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:45:11,327 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:45:11,329 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-12-20 02:45:11,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84e42de05/a10c4efc1cb143e9b5aa01afe9d75d12/FLAG6c65f2ef8 [2023-12-20 02:45:11,374 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84e42de05/a10c4efc1cb143e9b5aa01afe9d75d12 [2023-12-20 02:45:11,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:45:11,379 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:45:11,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:45:11,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:45:11,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:45:11,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:45:11" (1/1) ... [2023-12-20 02:45:11,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c3f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:11, skipping insertion in model container [2023-12-20 02:45:11,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:45:11" (1/1) ... [2023-12-20 02:45:11,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:45:11,801 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8424,8437] [2023-12-20 02:45:11,839 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12951,12964] [2023-12-20 02:45:11,906 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20701,20714] [2023-12-20 02:45:11,937 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27792,27805] [2023-12-20 02:45:11,996 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49016,49029] [2023-12-20 02:45:12,102 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80107,80120] [2023-12-20 02:45:12,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:45:12,260 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:45:12,293 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[8424,8437] [2023-12-20 02:45:12,306 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[12951,12964] [2023-12-20 02:45:12,333 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[20701,20714] [2023-12-20 02:45:12,354 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[27792,27805] [2023-12-20 02:45:12,402 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[49016,49029] [2023-12-20 02:45:12,445 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c[80107,80120] [2023-12-20 02:45:12,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:45:12,564 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:45:12,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12 WrapperNode [2023-12-20 02:45:12,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:45:12,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:45:12,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:45:12,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:45:12,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,756 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6418 [2023-12-20 02:45:12,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:45:12,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:45:12,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:45:12,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:45:12,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,854 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 02:45:12,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,935 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:45:12,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:45:12,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:45:12,986 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:45:12,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (1/1) ... [2023-12-20 02:45:12,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:45:13,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:45:13,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 02:45:13,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 02:45:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:45:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:45:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:45:13,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:45:13,326 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:45:13,328 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:45:15,770 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:45:15,823 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:45:15,823 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:45:15,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:45:15 BoogieIcfgContainer [2023-12-20 02:45:15,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:45:15,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:45:15,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:45:15,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:45:15,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:45:11" (1/3) ... [2023-12-20 02:45:15,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d786dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:45:15, skipping insertion in model container [2023-12-20 02:45:15,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:45:12" (2/3) ... [2023-12-20 02:45:15,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d786dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:45:15, skipping insertion in model container [2023-12-20 02:45:15,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:45:15" (3/3) ... [2023-12-20 02:45:15,830 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+sep-reducer.c [2023-12-20 02:45:15,844 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:45:15,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-20 02:45:15,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:45:15,912 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;@68554106, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:45:15,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-12-20 02:45:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand has 1288 states, 1281 states have (on average 1.7728337236533958) internal successors, (2271), 1287 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:15,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 02:45:15,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:15,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:15,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:15,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:15,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2092473724, now seen corresponding path program 1 times [2023-12-20 02:45:15,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:15,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787620786] [2023-12-20 02:45:15,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:15,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:16,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:16,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:16,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787620786] [2023-12-20 02:45:16,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787620786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:16,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:16,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:45:16,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540110608] [2023-12-20 02:45:16,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:16,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:45:16,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:16,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:45:16,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:16,451 INFO L87 Difference]: Start difference. First operand has 1288 states, 1281 states have (on average 1.7728337236533958) internal successors, (2271), 1287 states have internal predecessors, (2271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:17,894 INFO L93 Difference]: Finished difference Result 2509 states and 4321 transitions. [2023-12-20 02:45:17,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:45:17,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-20 02:45:17,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:17,914 INFO L225 Difference]: With dead ends: 2509 [2023-12-20 02:45:17,915 INFO L226 Difference]: Without dead ends: 1589 [2023-12-20 02:45:17,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:17,923 INFO L413 NwaCegarLoop]: 1046 mSDtfsCounter, 7089 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7089 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:17,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7089 Valid, 1542 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 02:45:17,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2023-12-20 02:45:18,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1583. [2023-12-20 02:45:18,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1577 states have (on average 1.3094483195941662) internal successors, (2065), 1582 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:18,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2065 transitions. [2023-12-20 02:45:18,018 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2065 transitions. Word has length 51 [2023-12-20 02:45:18,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:18,019 INFO L495 AbstractCegarLoop]: Abstraction has 1583 states and 2065 transitions. [2023-12-20 02:45:18,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:18,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2065 transitions. [2023-12-20 02:45:18,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:45:18,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:18,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:18,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:45:18,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:18,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:18,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1158227955, now seen corresponding path program 1 times [2023-12-20 02:45:18,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:18,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564737347] [2023-12-20 02:45:18,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:18,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:18,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:18,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:18,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564737347] [2023-12-20 02:45:18,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564737347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:18,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:18,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:45:18,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425120320] [2023-12-20 02:45:18,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:18,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:45:18,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:18,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:45:18,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:18,188 INFO L87 Difference]: Start difference. First operand 1583 states and 2065 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:19,052 INFO L93 Difference]: Finished difference Result 3197 states and 4200 transitions. [2023-12-20 02:45:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:45:19,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-20 02:45:19,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:19,060 INFO L225 Difference]: With dead ends: 3197 [2023-12-20 02:45:19,061 INFO L226 Difference]: Without dead ends: 2207 [2023-12-20 02:45:19,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:19,066 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 4976 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4976 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:19,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4976 Valid, 1042 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:45:19,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2023-12-20 02:45:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2193. [2023-12-20 02:45:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 2187 states have (on average 1.3196159122085047) internal successors, (2886), 2192 states have internal predecessors, (2886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:19,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 2886 transitions. [2023-12-20 02:45:19,118 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 2886 transitions. Word has length 52 [2023-12-20 02:45:19,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:19,118 INFO L495 AbstractCegarLoop]: Abstraction has 2193 states and 2886 transitions. [2023-12-20 02:45:19,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:19,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 2886 transitions. [2023-12-20 02:45:19,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:45:19,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:19,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:19,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:45:19,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:19,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:19,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1808254749, now seen corresponding path program 1 times [2023-12-20 02:45:19,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:19,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342776677] [2023-12-20 02:45:19,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:19,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:19,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:19,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:19,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342776677] [2023-12-20 02:45:19,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342776677] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:19,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:19,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:45:19,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149699861] [2023-12-20 02:45:19,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:19,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:45:19,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:19,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:45:19,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:19,323 INFO L87 Difference]: Start difference. First operand 2193 states and 2886 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:20,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:20,114 INFO L93 Difference]: Finished difference Result 4498 states and 5988 transitions. [2023-12-20 02:45:20,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:45:20,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-12-20 02:45:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:20,125 INFO L225 Difference]: With dead ends: 4498 [2023-12-20 02:45:20,126 INFO L226 Difference]: Without dead ends: 3071 [2023-12-20 02:45:20,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:20,129 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 4462 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:20,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4462 Valid, 930 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:45:20,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2023-12-20 02:45:20,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 3061. [2023-12-20 02:45:20,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3061 states, 3055 states have (on average 1.3237315875613749) internal successors, (4044), 3060 states have internal predecessors, (4044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:20,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4044 transitions. [2023-12-20 02:45:20,189 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4044 transitions. Word has length 52 [2023-12-20 02:45:20,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:20,189 INFO L495 AbstractCegarLoop]: Abstraction has 3061 states and 4044 transitions. [2023-12-20 02:45:20,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:20,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4044 transitions. [2023-12-20 02:45:20,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:45:20,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:20,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:20,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:45:20,193 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:20,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:20,194 INFO L85 PathProgramCache]: Analyzing trace with hash 77244356, now seen corresponding path program 1 times [2023-12-20 02:45:20,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:20,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943851513] [2023-12-20 02:45:20,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:20,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:20,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:20,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943851513] [2023-12-20 02:45:20,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943851513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:20,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:20,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:45:20,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120197614] [2023-12-20 02:45:20,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:20,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:45:20,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:20,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:45:20,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:20,516 INFO L87 Difference]: Start difference. First operand 3061 states and 4044 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:21,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:21,982 INFO L93 Difference]: Finished difference Result 5198 states and 7146 transitions. [2023-12-20 02:45:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 02:45:21,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-20 02:45:21,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:21,999 INFO L225 Difference]: With dead ends: 5198 [2023-12-20 02:45:22,000 INFO L226 Difference]: Without dead ends: 4494 [2023-12-20 02:45:22,002 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 02:45:22,003 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 2836 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 2407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:22,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 3012 Invalid, 2407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 02:45:22,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2023-12-20 02:45:22,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 3061. [2023-12-20 02:45:22,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3061 states, 3055 states have (on average 1.323404255319149) internal successors, (4043), 3060 states have internal predecessors, (4043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:22,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4043 transitions. [2023-12-20 02:45:22,090 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4043 transitions. Word has length 54 [2023-12-20 02:45:22,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:22,090 INFO L495 AbstractCegarLoop]: Abstraction has 3061 states and 4043 transitions. [2023-12-20 02:45:22,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:22,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4043 transitions. [2023-12-20 02:45:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:45:22,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:22,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:22,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:45:22,093 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:22,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:22,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1063699171, now seen corresponding path program 1 times [2023-12-20 02:45:22,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:22,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67119426] [2023-12-20 02:45:22,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:22,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:22,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:22,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:22,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67119426] [2023-12-20 02:45:22,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67119426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:22,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:22,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:45:22,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697270879] [2023-12-20 02:45:22,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:22,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:45:22,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:22,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:45:22,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:45:22,352 INFO L87 Difference]: Start difference. First operand 3061 states and 4043 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:24,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:24,382 INFO L93 Difference]: Finished difference Result 6226 states and 8540 transitions. [2023-12-20 02:45:24,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:45:24,384 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-20 02:45:24,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:24,401 INFO L225 Difference]: With dead ends: 6226 [2023-12-20 02:45:24,401 INFO L226 Difference]: Without dead ends: 5656 [2023-12-20 02:45:24,404 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 02:45:24,406 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 4298 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 3950 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4298 SdHoareTripleChecker+Valid, 4156 SdHoareTripleChecker+Invalid, 4005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 3950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:24,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4298 Valid, 4156 Invalid, 4005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 3950 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 02:45:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5656 states. [2023-12-20 02:45:24,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5656 to 3061. [2023-12-20 02:45:24,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3061 states, 3055 states have (on average 1.323076923076923) internal successors, (4042), 3060 states have internal predecessors, (4042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:24,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4042 transitions. [2023-12-20 02:45:24,483 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4042 transitions. Word has length 54 [2023-12-20 02:45:24,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:24,483 INFO L495 AbstractCegarLoop]: Abstraction has 3061 states and 4042 transitions. [2023-12-20 02:45:24,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:24,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4042 transitions. [2023-12-20 02:45:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:45:24,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:24,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:24,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:45:24,486 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:24,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:24,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1340474756, now seen corresponding path program 1 times [2023-12-20 02:45:24,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:24,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891988052] [2023-12-20 02:45:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:24,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:24,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:24,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891988052] [2023-12-20 02:45:24,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891988052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:24,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:24,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:45:24,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327366498] [2023-12-20 02:45:24,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:24,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:45:24,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:24,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:45:24,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:45:24,718 INFO L87 Difference]: Start difference. First operand 3061 states and 4042 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:26,167 INFO L93 Difference]: Finished difference Result 4620 states and 6242 transitions. [2023-12-20 02:45:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:45:26,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-20 02:45:26,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:26,192 INFO L225 Difference]: With dead ends: 4620 [2023-12-20 02:45:26,193 INFO L226 Difference]: Without dead ends: 4614 [2023-12-20 02:45:26,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:45:26,198 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2682 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 2891 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:26,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 3370 Invalid, 2917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2891 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 02:45:26,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4614 states. [2023-12-20 02:45:26,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4614 to 3061. [2023-12-20 02:45:26,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3061 states, 3055 states have (on average 1.3227495908346971) internal successors, (4041), 3060 states have internal predecessors, (4041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3061 states to 3061 states and 4041 transitions. [2023-12-20 02:45:26,271 INFO L78 Accepts]: Start accepts. Automaton has 3061 states and 4041 transitions. Word has length 54 [2023-12-20 02:45:26,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:26,271 INFO L495 AbstractCegarLoop]: Abstraction has 3061 states and 4041 transitions. [2023-12-20 02:45:26,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3061 states and 4041 transitions. [2023-12-20 02:45:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-20 02:45:26,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:26,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:26,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:45:26,274 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:26,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1906140159, now seen corresponding path program 1 times [2023-12-20 02:45:26,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:26,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293124182] [2023-12-20 02:45:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:26,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:26,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:26,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293124182] [2023-12-20 02:45:26,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293124182] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:26,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:26,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:45:26,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097399248] [2023-12-20 02:45:26,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:26,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:45:26,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:26,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:45:26,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:26,341 INFO L87 Difference]: Start difference. First operand 3061 states and 4041 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:26,394 INFO L93 Difference]: Finished difference Result 4017 states and 5490 transitions. [2023-12-20 02:45:26,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:45:26,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-20 02:45:26,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:26,405 INFO L225 Difference]: With dead ends: 4017 [2023-12-20 02:45:26,405 INFO L226 Difference]: Without dead ends: 3080 [2023-12-20 02:45:26,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:26,407 INFO L413 NwaCegarLoop]: 1184 mSDtfsCounter, 579 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:26,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1788 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:45:26,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2023-12-20 02:45:26,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 3078. [2023-12-20 02:45:26,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3078 states, 3072 states have (on average 1.3388671875) internal successors, (4113), 3077 states have internal predecessors, (4113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3078 states to 3078 states and 4113 transitions. [2023-12-20 02:45:26,457 INFO L78 Accepts]: Start accepts. Automaton has 3078 states and 4113 transitions. Word has length 55 [2023-12-20 02:45:26,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:26,458 INFO L495 AbstractCegarLoop]: Abstraction has 3078 states and 4113 transitions. [2023-12-20 02:45:26,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3078 states and 4113 transitions. [2023-12-20 02:45:26,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-20 02:45:26,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:26,460 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, 1, 1, 1] [2023-12-20 02:45:26,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:45:26,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:26,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:26,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1049277419, now seen corresponding path program 1 times [2023-12-20 02:45:26,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:26,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765992764] [2023-12-20 02:45:26,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:26,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:26,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:26,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:26,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765992764] [2023-12-20 02:45:26,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765992764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:26,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:26,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:45:26,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293366465] [2023-12-20 02:45:26,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:26,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:45:26,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:26,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:45:26,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:26,534 INFO L87 Difference]: Start difference. First operand 3078 states and 4113 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:26,593 INFO L93 Difference]: Finished difference Result 4752 states and 6648 transitions. [2023-12-20 02:45:26,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:45:26,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-20 02:45:26,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:26,614 INFO L225 Difference]: With dead ends: 4752 [2023-12-20 02:45:26,615 INFO L226 Difference]: Without dead ends: 3508 [2023-12-20 02:45:26,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:26,617 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 587 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:26,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1726 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:45:26,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3508 states. [2023-12-20 02:45:26,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 3506. [2023-12-20 02:45:26,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3506 states, 3500 states have (on average 1.3702857142857143) internal successors, (4796), 3505 states have internal predecessors, (4796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3506 states to 3506 states and 4796 transitions. [2023-12-20 02:45:26,669 INFO L78 Accepts]: Start accepts. Automaton has 3506 states and 4796 transitions. Word has length 55 [2023-12-20 02:45:26,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:26,669 INFO L495 AbstractCegarLoop]: Abstraction has 3506 states and 4796 transitions. [2023-12-20 02:45:26,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3506 states and 4796 transitions. [2023-12-20 02:45:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-20 02:45:26,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:26,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:26,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:45:26,672 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:26,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash 772696843, now seen corresponding path program 1 times [2023-12-20 02:45:26,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:26,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549518058] [2023-12-20 02:45:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:26,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:26,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:26,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:26,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549518058] [2023-12-20 02:45:26,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549518058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:26,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:26,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:45:26,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196750008] [2023-12-20 02:45:26,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:26,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:45:26,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:26,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:45:26,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:26,763 INFO L87 Difference]: Start difference. First operand 3506 states and 4796 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:26,879 INFO L93 Difference]: Finished difference Result 7488 states and 10500 transitions. [2023-12-20 02:45:26,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:45:26,879 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-12-20 02:45:26,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:26,886 INFO L225 Difference]: With dead ends: 7488 [2023-12-20 02:45:26,886 INFO L226 Difference]: Without dead ends: 5079 [2023-12-20 02:45:26,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:26,891 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 657 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:26,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1961 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:45:26,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5079 states. [2023-12-20 02:45:26,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5079 to 5073. [2023-12-20 02:45:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5073 states, 5067 states have (on average 1.3682652457075193) internal successors, (6933), 5072 states have internal predecessors, (6933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5073 states to 5073 states and 6933 transitions. [2023-12-20 02:45:26,970 INFO L78 Accepts]: Start accepts. Automaton has 5073 states and 6933 transitions. Word has length 55 [2023-12-20 02:45:26,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:26,971 INFO L495 AbstractCegarLoop]: Abstraction has 5073 states and 6933 transitions. [2023-12-20 02:45:26,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5073 states and 6933 transitions. [2023-12-20 02:45:26,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:45:26,974 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:26,974 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:26,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 02:45:26,975 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:26,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:26,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2137132613, now seen corresponding path program 1 times [2023-12-20 02:45:26,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:26,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358967313] [2023-12-20 02:45:26,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:26,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:27,556 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 02:45:27,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:27,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358967313] [2023-12-20 02:45:27,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358967313] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:27,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:27,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:45:27,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929984248] [2023-12-20 02:45:27,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:27,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:45:27,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:27,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:45:27,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:45:27,558 INFO L87 Difference]: Start difference. First operand 5073 states and 6933 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:29,163 INFO L93 Difference]: Finished difference Result 10112 states and 14040 transitions. [2023-12-20 02:45:29,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 02:45:29,164 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-12-20 02:45:29,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:29,181 INFO L225 Difference]: With dead ends: 10112 [2023-12-20 02:45:29,181 INFO L226 Difference]: Without dead ends: 10049 [2023-12-20 02:45:29,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:45:29,185 INFO L413 NwaCegarLoop]: 1188 mSDtfsCounter, 2846 mSDsluCounter, 7724 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 8912 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:29,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2846 Valid, 8912 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 02:45:29,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10049 states. [2023-12-20 02:45:29,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10049 to 5060. [2023-12-20 02:45:29,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5060 states, 5055 states have (on average 1.368545994065282) internal successors, (6918), 5059 states have internal predecessors, (6918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5060 states to 5060 states and 6918 transitions. [2023-12-20 02:45:29,280 INFO L78 Accepts]: Start accepts. Automaton has 5060 states and 6918 transitions. Word has length 56 [2023-12-20 02:45:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:29,281 INFO L495 AbstractCegarLoop]: Abstraction has 5060 states and 6918 transitions. [2023-12-20 02:45:29,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5060 states and 6918 transitions. [2023-12-20 02:45:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:45:29,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:29,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:29,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:45:29,284 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:29,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1716509337, now seen corresponding path program 1 times [2023-12-20 02:45:29,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:29,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007175170] [2023-12-20 02:45:29,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:29,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:29,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:29,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007175170] [2023-12-20 02:45:29,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007175170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:29,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:29,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:45:29,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896604651] [2023-12-20 02:45:29,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:29,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:45:29,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:29,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:45:29,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:29,335 INFO L87 Difference]: Start difference. First operand 5060 states and 6918 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:29,420 INFO L93 Difference]: Finished difference Result 9490 states and 13199 transitions. [2023-12-20 02:45:29,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:45:29,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-12-20 02:45:29,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:29,429 INFO L225 Difference]: With dead ends: 9490 [2023-12-20 02:45:29,429 INFO L226 Difference]: Without dead ends: 5439 [2023-12-20 02:45:29,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:29,434 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 820 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:29,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 1219 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:45:29,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2023-12-20 02:45:29,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 4346. [2023-12-20 02:45:29,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4346 states, 4342 states have (on average 1.3846153846153846) internal successors, (6012), 4345 states have internal predecessors, (6012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4346 states to 4346 states and 6012 transitions. [2023-12-20 02:45:29,491 INFO L78 Accepts]: Start accepts. Automaton has 4346 states and 6012 transitions. Word has length 56 [2023-12-20 02:45:29,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:29,491 INFO L495 AbstractCegarLoop]: Abstraction has 4346 states and 6012 transitions. [2023-12-20 02:45:29,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 4346 states and 6012 transitions. [2023-12-20 02:45:29,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:45:29,494 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:29,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:29,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:45:29,495 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:29,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:29,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1650159387, now seen corresponding path program 1 times [2023-12-20 02:45:29,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:29,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151894836] [2023-12-20 02:45:29,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:29,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:29,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:29,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:29,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151894836] [2023-12-20 02:45:29,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151894836] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:29,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:29,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:45:29,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201721662] [2023-12-20 02:45:29,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:29,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:45:29,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:29,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:45:29,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:29,552 INFO L87 Difference]: Start difference. First operand 4346 states and 6012 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:29,626 INFO L93 Difference]: Finished difference Result 8376 states and 11805 transitions. [2023-12-20 02:45:29,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:45:29,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-12-20 02:45:29,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:29,633 INFO L225 Difference]: With dead ends: 8376 [2023-12-20 02:45:29,633 INFO L226 Difference]: Without dead ends: 4764 [2023-12-20 02:45:29,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:29,638 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 638 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:29,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1000 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:45:29,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4764 states. [2023-12-20 02:45:29,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4764 to 3817. [2023-12-20 02:45:29,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3817 states, 3814 states have (on average 1.3977451494493969) internal successors, (5331), 3816 states have internal predecessors, (5331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3817 states to 3817 states and 5331 transitions. [2023-12-20 02:45:29,690 INFO L78 Accepts]: Start accepts. Automaton has 3817 states and 5331 transitions. Word has length 56 [2023-12-20 02:45:29,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:29,690 INFO L495 AbstractCegarLoop]: Abstraction has 3817 states and 5331 transitions. [2023-12-20 02:45:29,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3817 states and 5331 transitions. [2023-12-20 02:45:29,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:45:29,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:29,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:29,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:45:29,692 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:29,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:29,693 INFO L85 PathProgramCache]: Analyzing trace with hash 235795551, now seen corresponding path program 1 times [2023-12-20 02:45:29,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:29,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179648534] [2023-12-20 02:45:29,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:29,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:29,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:29,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:29,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179648534] [2023-12-20 02:45:29,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179648534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:29,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:29,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:45:29,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560835624] [2023-12-20 02:45:29,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:29,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:45:29,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:29,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:45:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:29,748 INFO L87 Difference]: Start difference. First operand 3817 states and 5331 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:29,851 INFO L93 Difference]: Finished difference Result 7681 states and 10898 transitions. [2023-12-20 02:45:29,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:45:29,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-12-20 02:45:29,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:29,857 INFO L225 Difference]: With dead ends: 7681 [2023-12-20 02:45:29,858 INFO L226 Difference]: Without dead ends: 4205 [2023-12-20 02:45:29,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:29,862 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 549 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:29,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 902 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:45:29,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states. [2023-12-20 02:45:29,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4205 to 3370. [2023-12-20 02:45:29,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3367 states have (on average 1.4134244134244134) internal successors, (4759), 3369 states have internal predecessors, (4759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 4759 transitions. [2023-12-20 02:45:29,948 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 4759 transitions. Word has length 56 [2023-12-20 02:45:29,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:29,948 INFO L495 AbstractCegarLoop]: Abstraction has 3370 states and 4759 transitions. [2023-12-20 02:45:29,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:29,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 4759 transitions. [2023-12-20 02:45:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-20 02:45:29,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:29,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:29,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:45:29,950 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:29,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:29,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1739046160, now seen corresponding path program 1 times [2023-12-20 02:45:29,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:29,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675972657] [2023-12-20 02:45:29,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:29,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:30,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:30,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675972657] [2023-12-20 02:45:30,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675972657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:30,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:30,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:45:30,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254429613] [2023-12-20 02:45:30,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:30,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:45:30,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:30,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:45:30,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:45:30,443 INFO L87 Difference]: Start difference. First operand 3370 states and 4759 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:31,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:31,827 INFO L93 Difference]: Finished difference Result 7180 states and 10144 transitions. [2023-12-20 02:45:31,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:45:31,827 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-20 02:45:31,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:31,840 INFO L225 Difference]: With dead ends: 7180 [2023-12-20 02:45:31,841 INFO L226 Difference]: Without dead ends: 7101 [2023-12-20 02:45:31,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:45:31,844 INFO L413 NwaCegarLoop]: 1107 mSDtfsCounter, 3513 mSDsluCounter, 4636 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3513 SdHoareTripleChecker+Valid, 5743 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:31,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3513 Valid, 5743 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:45:31,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7101 states. [2023-12-20 02:45:31,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7101 to 3341. [2023-12-20 02:45:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3341 states, 3339 states have (on average 1.4141958670260557) internal successors, (4722), 3340 states have internal predecessors, (4722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3341 states to 3341 states and 4722 transitions. [2023-12-20 02:45:31,930 INFO L78 Accepts]: Start accepts. Automaton has 3341 states and 4722 transitions. Word has length 57 [2023-12-20 02:45:31,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:31,931 INFO L495 AbstractCegarLoop]: Abstraction has 3341 states and 4722 transitions. [2023-12-20 02:45:31,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:31,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3341 states and 4722 transitions. [2023-12-20 02:45:31,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-20 02:45:31,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:31,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:31,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:45:31,932 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:31,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:31,933 INFO L85 PathProgramCache]: Analyzing trace with hash 503772602, now seen corresponding path program 1 times [2023-12-20 02:45:31,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:31,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623034315] [2023-12-20 02:45:31,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:31,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:32,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:32,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:32,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623034315] [2023-12-20 02:45:32,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623034315] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:32,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:32,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-20 02:45:32,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803444536] [2023-12-20 02:45:32,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:32,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 02:45:32,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:32,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 02:45:32,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2023-12-20 02:45:32,759 INFO L87 Difference]: Start difference. First operand 3341 states and 4722 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:34,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:34,882 INFO L93 Difference]: Finished difference Result 6477 states and 9153 transitions. [2023-12-20 02:45:34,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-20 02:45:34,885 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-12-20 02:45:34,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:34,895 INFO L225 Difference]: With dead ends: 6477 [2023-12-20 02:45:34,895 INFO L226 Difference]: Without dead ends: 6473 [2023-12-20 02:45:34,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=214, Invalid=842, Unknown=0, NotChecked=0, Total=1056 [2023-12-20 02:45:34,898 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 5073 mSDsluCounter, 7591 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 8256 SdHoareTripleChecker+Invalid, 3024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:34,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5073 Valid, 8256 Invalid, 3024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 02:45:34,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6473 states. [2023-12-20 02:45:34,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6473 to 3349. [2023-12-20 02:45:34,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3349 states, 3347 states have (on average 1.4138034060352556) internal successors, (4732), 3348 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:34,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3349 states to 3349 states and 4732 transitions. [2023-12-20 02:45:34,949 INFO L78 Accepts]: Start accepts. Automaton has 3349 states and 4732 transitions. Word has length 57 [2023-12-20 02:45:34,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:34,950 INFO L495 AbstractCegarLoop]: Abstraction has 3349 states and 4732 transitions. [2023-12-20 02:45:34,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3349 states and 4732 transitions. [2023-12-20 02:45:34,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-20 02:45:34,951 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:34,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:34,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:45:34,952 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:34,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:34,952 INFO L85 PathProgramCache]: Analyzing trace with hash -2083415141, now seen corresponding path program 1 times [2023-12-20 02:45:34,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:34,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996412083] [2023-12-20 02:45:34,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:34,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:35,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:35,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996412083] [2023-12-20 02:45:35,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996412083] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:35,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:35,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-20 02:45:35,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863003897] [2023-12-20 02:45:35,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:35,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-20 02:45:35,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:35,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-20 02:45:35,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:45:35,751 INFO L87 Difference]: Start difference. First operand 3349 states and 4732 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:38,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:38,292 INFO L93 Difference]: Finished difference Result 6229 states and 8744 transitions. [2023-12-20 02:45:38,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-20 02:45:38,293 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-12-20 02:45:38,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:38,298 INFO L225 Difference]: With dead ends: 6229 [2023-12-20 02:45:38,298 INFO L226 Difference]: Without dead ends: 6225 [2023-12-20 02:45:38,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=266, Invalid=1066, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 02:45:38,301 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 4434 mSDsluCounter, 8367 mSDsCounter, 0 mSdLazyCounter, 3162 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4434 SdHoareTripleChecker+Valid, 9030 SdHoareTripleChecker+Invalid, 3173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:38,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4434 Valid, 9030 Invalid, 3173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3162 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:45:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6225 states. [2023-12-20 02:45:38,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6225 to 3337. [2023-12-20 02:45:38,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3337 states, 3336 states have (on average 1.4142685851318946) internal successors, (4718), 3336 states have internal predecessors, (4718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:38,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3337 states to 3337 states and 4718 transitions. [2023-12-20 02:45:38,365 INFO L78 Accepts]: Start accepts. Automaton has 3337 states and 4718 transitions. Word has length 58 [2023-12-20 02:45:38,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:38,366 INFO L495 AbstractCegarLoop]: Abstraction has 3337 states and 4718 transitions. [2023-12-20 02:45:38,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:38,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 4718 transitions. [2023-12-20 02:45:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-20 02:45:38,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:38,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:38,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 02:45:38,369 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:38,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:38,369 INFO L85 PathProgramCache]: Analyzing trace with hash -757497056, now seen corresponding path program 1 times [2023-12-20 02:45:38,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:38,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106485809] [2023-12-20 02:45:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:38,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:38,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:38,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106485809] [2023-12-20 02:45:38,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106485809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:38,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:38,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:45:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653532450] [2023-12-20 02:45:38,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:38,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:45:38,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:38,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:45:38,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:38,461 INFO L87 Difference]: Start difference. First operand 3337 states and 4718 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:38,560 INFO L93 Difference]: Finished difference Result 10455 states and 15112 transitions. [2023-12-20 02:45:38,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:45:38,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-20 02:45:38,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:38,568 INFO L225 Difference]: With dead ends: 10455 [2023-12-20 02:45:38,568 INFO L226 Difference]: Without dead ends: 7669 [2023-12-20 02:45:38,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:38,573 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 1582 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1582 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:38,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1582 Valid, 1109 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:45:38,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7669 states. [2023-12-20 02:45:38,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7669 to 5813. [2023-12-20 02:45:38,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5812 states have (on average 1.413282863041982) internal successors, (8214), 5812 states have internal predecessors, (8214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 8214 transitions. [2023-12-20 02:45:38,647 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 8214 transitions. Word has length 65 [2023-12-20 02:45:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:38,647 INFO L495 AbstractCegarLoop]: Abstraction has 5813 states and 8214 transitions. [2023-12-20 02:45:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:38,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 8214 transitions. [2023-12-20 02:45:38,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 02:45:38,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:38,650 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:38,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 02:45:38,650 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:38,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:38,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1973335583, now seen corresponding path program 1 times [2023-12-20 02:45:38,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:38,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210187197] [2023-12-20 02:45:38,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:38,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:38,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:38,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:38,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210187197] [2023-12-20 02:45:38,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210187197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:38,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:38,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:45:38,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963760890] [2023-12-20 02:45:38,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:38,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:45:38,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:38,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:45:38,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:38,742 INFO L87 Difference]: Start difference. First operand 5813 states and 8214 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:38,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:38,828 INFO L93 Difference]: Finished difference Result 9119 states and 12933 transitions. [2023-12-20 02:45:38,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:45:38,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-20 02:45:38,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:38,833 INFO L225 Difference]: With dead ends: 9119 [2023-12-20 02:45:38,833 INFO L226 Difference]: Without dead ends: 3835 [2023-12-20 02:45:38,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:38,839 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 989 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:38,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 810 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:45:38,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3835 states. [2023-12-20 02:45:38,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3835 to 3831. [2023-12-20 02:45:38,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3831 states, 3830 states have (on average 1.387728459530026) internal successors, (5315), 3830 states have internal predecessors, (5315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:38,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3831 states and 5315 transitions. [2023-12-20 02:45:38,886 INFO L78 Accepts]: Start accepts. Automaton has 3831 states and 5315 transitions. Word has length 66 [2023-12-20 02:45:38,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:38,887 INFO L495 AbstractCegarLoop]: Abstraction has 3831 states and 5315 transitions. [2023-12-20 02:45:38,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:38,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3831 states and 5315 transitions. [2023-12-20 02:45:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:45:38,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:38,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:38,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 02:45:38,889 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:38,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:38,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1468543707, now seen corresponding path program 1 times [2023-12-20 02:45:38,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:38,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867782364] [2023-12-20 02:45:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:38,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:38,984 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 02:45:38,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:38,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867782364] [2023-12-20 02:45:38,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867782364] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:38,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:38,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:45:38,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124068509] [2023-12-20 02:45:38,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:38,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:45:38,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:38,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:45:38,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:38,986 INFO L87 Difference]: Start difference. First operand 3831 states and 5315 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:39,052 INFO L93 Difference]: Finished difference Result 10121 states and 14241 transitions. [2023-12-20 02:45:39,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:45:39,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2023-12-20 02:45:39,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:39,061 INFO L225 Difference]: With dead ends: 10121 [2023-12-20 02:45:39,061 INFO L226 Difference]: Without dead ends: 6819 [2023-12-20 02:45:39,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:39,067 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 277 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:39,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 863 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:45:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6819 states. [2023-12-20 02:45:39,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6819 to 6401. [2023-12-20 02:45:39,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6400 states have (on average 1.39109375) internal successors, (8903), 6400 states have internal predecessors, (8903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:39,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 8903 transitions. [2023-12-20 02:45:39,150 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 8903 transitions. Word has length 68 [2023-12-20 02:45:39,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:39,150 INFO L495 AbstractCegarLoop]: Abstraction has 6401 states and 8903 transitions. [2023-12-20 02:45:39,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:39,150 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 8903 transitions. [2023-12-20 02:45:39,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 02:45:39,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:39,152 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 02:45:39,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 02:45:39,153 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:39,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:39,153 INFO L85 PathProgramCache]: Analyzing trace with hash 2109199581, now seen corresponding path program 1 times [2023-12-20 02:45:39,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:39,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471029684] [2023-12-20 02:45:39,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:39,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:39,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:39,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:39,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471029684] [2023-12-20 02:45:39,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471029684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:39,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:39,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:45:39,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178332687] [2023-12-20 02:45:39,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:39,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:45:39,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:39,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:45:39,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:39,295 INFO L87 Difference]: Start difference. First operand 6401 states and 8903 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:39,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:39,370 INFO L93 Difference]: Finished difference Result 17519 states and 24499 transitions. [2023-12-20 02:45:39,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:45:39,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-20 02:45:39,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:39,383 INFO L225 Difference]: With dead ends: 17519 [2023-12-20 02:45:39,384 INFO L226 Difference]: Without dead ends: 11631 [2023-12-20 02:45:39,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:39,393 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 322 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:39,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 823 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:45:39,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11631 states. [2023-12-20 02:45:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11631 to 10797. [2023-12-20 02:45:39,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10797 states, 10796 states have (on average 1.3828269729529454) internal successors, (14929), 10796 states have internal predecessors, (14929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:39,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10797 states to 10797 states and 14929 transitions. [2023-12-20 02:45:39,525 INFO L78 Accepts]: Start accepts. Automaton has 10797 states and 14929 transitions. Word has length 71 [2023-12-20 02:45:39,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:39,525 INFO L495 AbstractCegarLoop]: Abstraction has 10797 states and 14929 transitions. [2023-12-20 02:45:39,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:39,525 INFO L276 IsEmpty]: Start isEmpty. Operand 10797 states and 14929 transitions. [2023-12-20 02:45:39,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 02:45:39,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:39,529 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 02:45:39,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 02:45:39,529 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:39,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:39,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1039211364, now seen corresponding path program 1 times [2023-12-20 02:45:39,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:39,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661597679] [2023-12-20 02:45:39,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:39,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:39,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:39,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661597679] [2023-12-20 02:45:39,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661597679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:39,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:39,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:45:39,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713987178] [2023-12-20 02:45:39,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:39,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:45:39,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:39,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:45:39,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:45:39,714 INFO L87 Difference]: Start difference. First operand 10797 states and 14929 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:39,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:39,873 INFO L93 Difference]: Finished difference Result 22756 states and 31072 transitions. [2023-12-20 02:45:39,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:45:39,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2023-12-20 02:45:39,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:39,898 INFO L225 Difference]: With dead ends: 22756 [2023-12-20 02:45:39,899 INFO L226 Difference]: Without dead ends: 22754 [2023-12-20 02:45:39,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:45:39,909 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 627 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:39,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 2300 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:45:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22754 states. [2023-12-20 02:45:40,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22754 to 11685. [2023-12-20 02:45:40,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11685 states, 11684 states have (on average 1.3537315987675453) internal successors, (15817), 11684 states have internal predecessors, (15817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:40,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11685 states to 11685 states and 15817 transitions. [2023-12-20 02:45:40,095 INFO L78 Accepts]: Start accepts. Automaton has 11685 states and 15817 transitions. Word has length 71 [2023-12-20 02:45:40,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:40,095 INFO L495 AbstractCegarLoop]: Abstraction has 11685 states and 15817 transitions. [2023-12-20 02:45:40,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:40,095 INFO L276 IsEmpty]: Start isEmpty. Operand 11685 states and 15817 transitions. [2023-12-20 02:45:40,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 02:45:40,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:40,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:40,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 02:45:40,098 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:40,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:40,098 INFO L85 PathProgramCache]: Analyzing trace with hash -2028938757, now seen corresponding path program 1 times [2023-12-20 02:45:40,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:40,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425220236] [2023-12-20 02:45:40,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:40,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:40,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:40,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:40,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425220236] [2023-12-20 02:45:40,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425220236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:40,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:40,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:45:40,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372773079] [2023-12-20 02:45:40,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:40,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:45:40,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:40,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:45:40,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:40,152 INFO L87 Difference]: Start difference. First operand 11685 states and 15817 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:40,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:40,260 INFO L93 Difference]: Finished difference Result 31587 states and 42789 transitions. [2023-12-20 02:45:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:45:40,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2023-12-20 02:45:40,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:40,350 INFO L225 Difference]: With dead ends: 31587 [2023-12-20 02:45:40,350 INFO L226 Difference]: Without dead ends: 20417 [2023-12-20 02:45:40,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:45:40,362 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 291 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:40,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 809 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:45:40,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20417 states. [2023-12-20 02:45:40,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20417 to 20415. [2023-12-20 02:45:40,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20415 states, 20414 states have (on average 1.3349172136768883) internal successors, (27251), 20414 states have internal predecessors, (27251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:40,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20415 states to 20415 states and 27251 transitions. [2023-12-20 02:45:40,592 INFO L78 Accepts]: Start accepts. Automaton has 20415 states and 27251 transitions. Word has length 72 [2023-12-20 02:45:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:40,592 INFO L495 AbstractCegarLoop]: Abstraction has 20415 states and 27251 transitions. [2023-12-20 02:45:40,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:40,595 INFO L276 IsEmpty]: Start isEmpty. Operand 20415 states and 27251 transitions. [2023-12-20 02:45:40,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:45:40,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:40,597 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 02:45:40,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 02:45:40,597 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:40,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:40,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1347861653, now seen corresponding path program 1 times [2023-12-20 02:45:40,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:40,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658922701] [2023-12-20 02:45:40,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:40,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:40,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:40,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658922701] [2023-12-20 02:45:40,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658922701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:40,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:40,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:45:40,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046350061] [2023-12-20 02:45:40,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:40,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:45:40,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:40,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:45:40,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:40,692 INFO L87 Difference]: Start difference. First operand 20415 states and 27251 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 02:45:40,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:40,837 INFO L93 Difference]: Finished difference Result 35909 states and 48129 transitions. [2023-12-20 02:45:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:45:40,838 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 02:45:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:40,876 INFO L225 Difference]: With dead ends: 35909 [2023-12-20 02:45:40,876 INFO L226 Difference]: Without dead ends: 29379 [2023-12-20 02:45:40,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:40,892 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 1028 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:40,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 1313 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:45:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29379 states. [2023-12-20 02:45:41,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29379 to 25597. [2023-12-20 02:45:41,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25597 states, 25596 states have (on average 1.3304031879981246) internal successors, (34053), 25596 states have internal predecessors, (34053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:41,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25597 states to 25597 states and 34053 transitions. [2023-12-20 02:45:41,344 INFO L78 Accepts]: Start accepts. Automaton has 25597 states and 34053 transitions. Word has length 76 [2023-12-20 02:45:41,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:41,344 INFO L495 AbstractCegarLoop]: Abstraction has 25597 states and 34053 transitions. [2023-12-20 02:45:41,344 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 02:45:41,344 INFO L276 IsEmpty]: Start isEmpty. Operand 25597 states and 34053 transitions. [2023-12-20 02:45:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-20 02:45:41,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:41,347 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 02:45:41,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 02:45:41,347 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:41,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:41,348 INFO L85 PathProgramCache]: Analyzing trace with hash 196878916, now seen corresponding path program 1 times [2023-12-20 02:45:41,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:41,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798824981] [2023-12-20 02:45:41,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:41,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:41,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:41,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798824981] [2023-12-20 02:45:41,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798824981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:41,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:41,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:45:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924316418] [2023-12-20 02:45:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:41,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:45:41,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:41,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:45:41,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:41,446 INFO L87 Difference]: Start difference. First operand 25597 states and 34053 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:41,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:41,602 INFO L93 Difference]: Finished difference Result 39385 states and 52637 transitions. [2023-12-20 02:45:41,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:45:41,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-20 02:45:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:41,644 INFO L225 Difference]: With dead ends: 39385 [2023-12-20 02:45:41,644 INFO L226 Difference]: Without dead ends: 32855 [2023-12-20 02:45:41,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:41,665 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 971 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:41,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 1365 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:45:41,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32855 states. [2023-12-20 02:45:41,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32855 to 30777. [2023-12-20 02:45:42,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30777 states, 30776 states have (on average 1.3274304652976345) internal successors, (40853), 30776 states have internal predecessors, (40853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:42,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30777 states to 30777 states and 40853 transitions. [2023-12-20 02:45:42,058 INFO L78 Accepts]: Start accepts. Automaton has 30777 states and 40853 transitions. Word has length 77 [2023-12-20 02:45:42,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:42,058 INFO L495 AbstractCegarLoop]: Abstraction has 30777 states and 40853 transitions. [2023-12-20 02:45:42,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:42,185 INFO L276 IsEmpty]: Start isEmpty. Operand 30777 states and 40853 transitions. [2023-12-20 02:45:42,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-20 02:45:42,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:42,188 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 02:45:42,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 02:45:42,188 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:42,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:42,189 INFO L85 PathProgramCache]: Analyzing trace with hash -231124447, now seen corresponding path program 1 times [2023-12-20 02:45:42,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:42,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901368489] [2023-12-20 02:45:42,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:42,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:42,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:42,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:42,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901368489] [2023-12-20 02:45:42,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901368489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:42,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:42,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:45:42,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470148280] [2023-12-20 02:45:42,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:42,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:45:42,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:42,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:45:42,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:42,290 INFO L87 Difference]: Start difference. First operand 30777 states and 40853 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:42,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:42,464 INFO L93 Difference]: Finished difference Result 44629 states and 59421 transitions. [2023-12-20 02:45:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:45:42,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2023-12-20 02:45:42,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:42,515 INFO L225 Difference]: With dead ends: 44629 [2023-12-20 02:45:42,515 INFO L226 Difference]: Without dead ends: 38059 [2023-12-20 02:45:42,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:42,536 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 1054 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:42,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1300 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:45:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38059 states. [2023-12-20 02:45:42,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38059 to 35981. [2023-12-20 02:45:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35981 states, 35980 states have (on average 1.3243190661478599) internal successors, (47649), 35980 states have internal predecessors, (47649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:43,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35981 states to 35981 states and 47649 transitions. [2023-12-20 02:45:43,250 INFO L78 Accepts]: Start accepts. Automaton has 35981 states and 47649 transitions. Word has length 77 [2023-12-20 02:45:43,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:43,251 INFO L495 AbstractCegarLoop]: Abstraction has 35981 states and 47649 transitions. [2023-12-20 02:45:43,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:43,251 INFO L276 IsEmpty]: Start isEmpty. Operand 35981 states and 47649 transitions. [2023-12-20 02:45:43,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:45:43,255 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:43,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:43,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 02:45:43,256 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:43,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:43,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2004849382, now seen corresponding path program 1 times [2023-12-20 02:45:43,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:43,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150668452] [2023-12-20 02:45:43,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:43,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:43,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:43,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150668452] [2023-12-20 02:45:43,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150668452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:43,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:43,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:45:43,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447148252] [2023-12-20 02:45:43,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:43,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:45:43,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:43,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:45:43,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:45:43,426 INFO L87 Difference]: Start difference. First operand 35981 states and 47649 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:43,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:43,770 INFO L93 Difference]: Finished difference Result 56515 states and 75084 transitions. [2023-12-20 02:45:43,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:45:43,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-20 02:45:43,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:43,836 INFO L225 Difference]: With dead ends: 56515 [2023-12-20 02:45:43,836 INFO L226 Difference]: Without dead ends: 44805 [2023-12-20 02:45:43,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:45:43,863 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 1228 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:43,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 1278 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:45:43,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44805 states. [2023-12-20 02:45:44,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44805 to 41085. [2023-12-20 02:45:44,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41085 states, 41084 states have (on average 1.3250170382630708) internal successors, (54437), 41084 states have internal predecessors, (54437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:44,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41085 states to 41085 states and 54437 transitions. [2023-12-20 02:45:44,609 INFO L78 Accepts]: Start accepts. Automaton has 41085 states and 54437 transitions. Word has length 84 [2023-12-20 02:45:44,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:44,609 INFO L495 AbstractCegarLoop]: Abstraction has 41085 states and 54437 transitions. [2023-12-20 02:45:44,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 41085 states and 54437 transitions. [2023-12-20 02:45:44,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:45:44,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:44,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:44,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 02:45:44,614 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:44,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:44,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1244346189, now seen corresponding path program 1 times [2023-12-20 02:45:44,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:44,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280698027] [2023-12-20 02:45:44,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:44,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:44,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:44,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280698027] [2023-12-20 02:45:44,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280698027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:44,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:44,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:45:44,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145012164] [2023-12-20 02:45:44,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:44,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:45:44,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:44,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:45:44,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:45:44,751 INFO L87 Difference]: Start difference. First operand 41085 states and 54437 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:45,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:45,202 INFO L93 Difference]: Finished difference Result 65599 states and 86908 transitions. [2023-12-20 02:45:45,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:45:45,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-20 02:45:45,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:45,254 INFO L225 Difference]: With dead ends: 65599 [2023-12-20 02:45:45,254 INFO L226 Difference]: Without dead ends: 46325 [2023-12-20 02:45:45,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:45,267 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 1044 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:45,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1300 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:45:45,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46325 states. [2023-12-20 02:45:45,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46325 to 40809. [2023-12-20 02:45:45,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40809 states, 40808 states have (on average 1.3227063320917467) internal successors, (53977), 40808 states have internal predecessors, (53977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:45,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40809 states to 40809 states and 53977 transitions. [2023-12-20 02:45:45,962 INFO L78 Accepts]: Start accepts. Automaton has 40809 states and 53977 transitions. Word has length 84 [2023-12-20 02:45:45,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:45,962 INFO L495 AbstractCegarLoop]: Abstraction has 40809 states and 53977 transitions. [2023-12-20 02:45:45,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:45,962 INFO L276 IsEmpty]: Start isEmpty. Operand 40809 states and 53977 transitions. [2023-12-20 02:45:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 02:45:45,967 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:45,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:45,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 02:45:45,967 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:45,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:45,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1966767005, now seen corresponding path program 1 times [2023-12-20 02:45:45,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:45,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513882726] [2023-12-20 02:45:45,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:45,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:46,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:46,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:46,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513882726] [2023-12-20 02:45:46,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513882726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:46,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:46,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:45:46,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499406532] [2023-12-20 02:45:46,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:46,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:45:46,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:46,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:45:46,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:45:46,082 INFO L87 Difference]: Start difference. First operand 40809 states and 53977 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:46,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:46,770 INFO L93 Difference]: Finished difference Result 51791 states and 68401 transitions. [2023-12-20 02:45:46,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:45:46,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-20 02:45:46,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:46,834 INFO L225 Difference]: With dead ends: 51791 [2023-12-20 02:45:46,835 INFO L226 Difference]: Without dead ends: 50661 [2023-12-20 02:45:46,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:45:46,853 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 2256 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:46,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 755 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:45:46,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50661 states. [2023-12-20 02:45:47,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50661 to 40807. [2023-12-20 02:45:47,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40807 states, 40806 states have (on average 1.3226731363034847) internal successors, (53973), 40806 states have internal predecessors, (53973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40807 states to 40807 states and 53973 transitions. [2023-12-20 02:45:47,486 INFO L78 Accepts]: Start accepts. Automaton has 40807 states and 53973 transitions. Word has length 85 [2023-12-20 02:45:47,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:47,486 INFO L495 AbstractCegarLoop]: Abstraction has 40807 states and 53973 transitions. [2023-12-20 02:45:47,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:47,486 INFO L276 IsEmpty]: Start isEmpty. Operand 40807 states and 53973 transitions. [2023-12-20 02:45:47,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 02:45:47,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:47,495 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:47,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 02:45:47,495 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:47,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:47,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1926310259, now seen corresponding path program 1 times [2023-12-20 02:45:47,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:47,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876068874] [2023-12-20 02:45:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:47,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:47,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:47,731 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:47,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:47,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876068874] [2023-12-20 02:45:47,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876068874] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:45:47,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117221016] [2023-12-20 02:45:47,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:47,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:45:47,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:45:47,734 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:45:47,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 02:45:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:48,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 02:45:48,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:45:48,608 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:48,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:45:48,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117221016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:48,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:45:48,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 12 [2023-12-20 02:45:48,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212439160] [2023-12-20 02:45:48,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:48,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:45:48,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:48,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:45:48,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:45:48,610 INFO L87 Difference]: Start difference. First operand 40807 states and 53973 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:50,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:50,083 INFO L93 Difference]: Finished difference Result 113535 states and 148389 transitions. [2023-12-20 02:45:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 02:45:50,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 02:45:50,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:50,187 INFO L225 Difference]: With dead ends: 113535 [2023-12-20 02:45:50,187 INFO L226 Difference]: Without dead ends: 95421 [2023-12-20 02:45:50,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:45:50,221 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 2489 mSDsluCounter, 1468 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 1826 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:50,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 1826 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:45:50,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95421 states. [2023-12-20 02:45:51,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95421 to 62129. [2023-12-20 02:45:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62129 states, 62128 states have (on average 1.3167653875869174) internal successors, (81808), 62128 states have internal predecessors, (81808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62129 states to 62129 states and 81808 transitions. [2023-12-20 02:45:51,222 INFO L78 Accepts]: Start accepts. Automaton has 62129 states and 81808 transitions. Word has length 92 [2023-12-20 02:45:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:51,222 INFO L495 AbstractCegarLoop]: Abstraction has 62129 states and 81808 transitions. [2023-12-20 02:45:51,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:51,222 INFO L276 IsEmpty]: Start isEmpty. Operand 62129 states and 81808 transitions. [2023-12-20 02:45:51,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 02:45:51,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:51,232 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:51,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 02:45:51,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-12-20 02:45:51,441 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:51,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:51,441 INFO L85 PathProgramCache]: Analyzing trace with hash -406242549, now seen corresponding path program 1 times [2023-12-20 02:45:51,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:51,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650528846] [2023-12-20 02:45:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:51,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:51,936 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:45:51,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:51,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650528846] [2023-12-20 02:45:51,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650528846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:51,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:51,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:45:51,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696396835] [2023-12-20 02:45:51,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:51,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:45:51,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:51,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:45:51,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:45:51,938 INFO L87 Difference]: Start difference. First operand 62129 states and 81808 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:53,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:53,053 INFO L93 Difference]: Finished difference Result 152066 states and 199440 transitions. [2023-12-20 02:45:53,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:45:53,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 02:45:53,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:53,191 INFO L225 Difference]: With dead ends: 152066 [2023-12-20 02:45:53,191 INFO L226 Difference]: Without dead ends: 125734 [2023-12-20 02:45:53,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:45:53,216 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 2247 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:53,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2247 Valid, 1516 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:45:53,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125734 states. [2023-12-20 02:45:54,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125734 to 62111. [2023-12-20 02:45:54,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62111 states, 62110 states have (on average 1.3168249879246499) internal successors, (81788), 62110 states have internal predecessors, (81788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:54,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62111 states to 62111 states and 81788 transitions. [2023-12-20 02:45:54,526 INFO L78 Accepts]: Start accepts. Automaton has 62111 states and 81788 transitions. Word has length 92 [2023-12-20 02:45:54,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:54,527 INFO L495 AbstractCegarLoop]: Abstraction has 62111 states and 81788 transitions. [2023-12-20 02:45:54,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:54,527 INFO L276 IsEmpty]: Start isEmpty. Operand 62111 states and 81788 transitions. [2023-12-20 02:45:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:45:54,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:54,538 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:54,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 02:45:54,538 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:54,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1250731369, now seen corresponding path program 1 times [2023-12-20 02:45:54,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:54,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050562970] [2023-12-20 02:45:54,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:54,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:54,747 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 02:45:54,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:54,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050562970] [2023-12-20 02:45:54,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050562970] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:54,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:54,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:45:54,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84700960] [2023-12-20 02:45:54,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:54,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:45:54,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:54,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:45:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:45:54,749 INFO L87 Difference]: Start difference. First operand 62111 states and 81788 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:56,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:56,013 INFO L93 Difference]: Finished difference Result 165236 states and 214700 transitions. [2023-12-20 02:45:56,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:45:56,013 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 02:45:56,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:56,187 INFO L225 Difference]: With dead ends: 165236 [2023-12-20 02:45:56,187 INFO L226 Difference]: Without dead ends: 138660 [2023-12-20 02:45:56,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:45:56,236 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 1712 mSDsluCounter, 1514 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:56,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 1954 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:45:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138660 states. [2023-12-20 02:45:57,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138660 to 62097. [2023-12-20 02:45:57,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62097 states, 62096 states have (on average 1.3168803143519712) internal successors, (81773), 62096 states have internal predecessors, (81773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:57,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62097 states to 62097 states and 81773 transitions. [2023-12-20 02:45:57,634 INFO L78 Accepts]: Start accepts. Automaton has 62097 states and 81773 transitions. Word has length 93 [2023-12-20 02:45:57,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:57,634 INFO L495 AbstractCegarLoop]: Abstraction has 62097 states and 81773 transitions. [2023-12-20 02:45:57,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:57,635 INFO L276 IsEmpty]: Start isEmpty. Operand 62097 states and 81773 transitions. [2023-12-20 02:45:57,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:45:57,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:57,644 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:45:57,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 02:45:57,644 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:45:57,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:57,644 INFO L85 PathProgramCache]: Analyzing trace with hash 817130232, now seen corresponding path program 1 times [2023-12-20 02:45:57,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:57,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536256958] [2023-12-20 02:45:57,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:57,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:57,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:57,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536256958] [2023-12-20 02:45:57,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536256958] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:45:57,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779190127] [2023-12-20 02:45:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:57,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:45:57,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:45:57,851 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:45:57,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 02:45:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:58,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-20 02:45:58,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:45:58,692 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:58,693 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:45:58,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779190127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:58,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:45:58,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 13 [2023-12-20 02:45:58,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789882468] [2023-12-20 02:45:58,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:58,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:45:58,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:58,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:45:58,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:45:58,695 INFO L87 Difference]: Start difference. First operand 62097 states and 81773 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:00,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:00,730 INFO L93 Difference]: Finished difference Result 216773 states and 282744 transitions. [2023-12-20 02:46:00,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-20 02:46:00,731 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 02:46:00,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:01,145 INFO L225 Difference]: With dead ends: 216773 [2023-12-20 02:46:01,145 INFO L226 Difference]: Without dead ends: 155113 [2023-12-20 02:46:01,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=344, Invalid=1216, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:46:01,204 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2793 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:01,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2793 Valid, 2742 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:46:01,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155113 states. [2023-12-20 02:46:02,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155113 to 89541. [2023-12-20 02:46:02,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89541 states, 89540 states have (on average 1.289066339066339) internal successors, (115423), 89540 states have internal predecessors, (115423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:02,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89541 states to 89541 states and 115423 transitions. [2023-12-20 02:46:02,823 INFO L78 Accepts]: Start accepts. Automaton has 89541 states and 115423 transitions. Word has length 93 [2023-12-20 02:46:02,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:02,823 INFO L495 AbstractCegarLoop]: Abstraction has 89541 states and 115423 transitions. [2023-12-20 02:46:02,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:02,823 INFO L276 IsEmpty]: Start isEmpty. Operand 89541 states and 115423 transitions. [2023-12-20 02:46:02,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:46:02,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:02,833 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:02,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 02:46:03,033 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,SelfDestructingSolverStorable31 [2023-12-20 02:46:03,034 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:03,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:03,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1146301213, now seen corresponding path program 1 times [2023-12-20 02:46:03,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:03,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762734005] [2023-12-20 02:46:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:03,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:03,251 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:03,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:03,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762734005] [2023-12-20 02:46:03,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762734005] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:46:03,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274721583] [2023-12-20 02:46:03,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:03,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:46:03,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:46:03,253 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:46:03,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 02:46:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:03,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:46:03,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:46:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:04,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:46:05,204 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:05,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274721583] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:46:05,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:46:05,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 12] total 26 [2023-12-20 02:46:05,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656175441] [2023-12-20 02:46:05,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:46:05,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-20 02:46:05,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:05,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-20 02:46:05,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=565, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:46:05,206 INFO L87 Difference]: Start difference. First operand 89541 states and 115423 transitions. Second operand has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 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 02:46:36,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:36,239 INFO L93 Difference]: Finished difference Result 875170 states and 1107469 transitions. [2023-12-20 02:46:36,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 390 states. [2023-12-20 02:46:36,240 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 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 93 [2023-12-20 02:46:36,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:37,485 INFO L225 Difference]: With dead ends: 875170 [2023-12-20 02:46:37,485 INFO L226 Difference]: Without dead ends: 786194 [2023-12-20 02:46:38,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 409 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75356 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=16741, Invalid=151769, Unknown=0, NotChecked=0, Total=168510 [2023-12-20 02:46:38,008 INFO L413 NwaCegarLoop]: 735 mSDtfsCounter, 10940 mSDsluCounter, 12738 mSDsCounter, 0 mSdLazyCounter, 14366 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10940 SdHoareTripleChecker+Valid, 13473 SdHoareTripleChecker+Invalid, 14585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 14366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:38,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10940 Valid, 13473 Invalid, 14585 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [219 Valid, 14366 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-12-20 02:46:38,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786194 states. [2023-12-20 02:46:42,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786194 to 115815. [2023-12-20 02:46:42,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115815 states, 115814 states have (on average 1.2834890427754848) internal successors, (148646), 115814 states have internal predecessors, (148646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:43,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115815 states to 115815 states and 148646 transitions. [2023-12-20 02:46:43,081 INFO L78 Accepts]: Start accepts. Automaton has 115815 states and 148646 transitions. Word has length 93 [2023-12-20 02:46:43,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:43,081 INFO L495 AbstractCegarLoop]: Abstraction has 115815 states and 148646 transitions. [2023-12-20 02:46:43,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.76923076923077) internal successors, (254), 26 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 02:46:43,081 INFO L276 IsEmpty]: Start isEmpty. Operand 115815 states and 148646 transitions. [2023-12-20 02:46:43,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 02:46:43,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:43,089 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:43,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 02:46:43,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:46:43,290 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:43,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:43,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1011170433, now seen corresponding path program 1 times [2023-12-20 02:46:43,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:43,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612454433] [2023-12-20 02:46:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:43,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:43,364 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:43,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:43,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612454433] [2023-12-20 02:46:43,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612454433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:43,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:43,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:46:43,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544875400] [2023-12-20 02:46:43,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:43,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:46:43,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:43,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:46:43,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:43,366 INFO L87 Difference]: Start difference. First operand 115815 states and 148646 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:45,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:45,296 INFO L93 Difference]: Finished difference Result 406796 states and 519762 transitions. [2023-12-20 02:46:45,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:46:45,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 02:46:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:45,751 INFO L225 Difference]: With dead ends: 406796 [2023-12-20 02:46:45,751 INFO L226 Difference]: Without dead ends: 291569 [2023-12-20 02:46:45,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:46:45,832 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 1221 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:45,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 865 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:46:46,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291569 states. [2023-12-20 02:46:48,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291569 to 155163. [2023-12-20 02:46:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155163 states, 155162 states have (on average 1.254952887949369) internal successors, (194721), 155162 states have internal predecessors, (194721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:48,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155163 states to 155163 states and 194721 transitions. [2023-12-20 02:46:48,855 INFO L78 Accepts]: Start accepts. Automaton has 155163 states and 194721 transitions. Word has length 97 [2023-12-20 02:46:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:48,855 INFO L495 AbstractCegarLoop]: Abstraction has 155163 states and 194721 transitions. [2023-12-20 02:46:48,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:48,855 INFO L276 IsEmpty]: Start isEmpty. Operand 155163 states and 194721 transitions. [2023-12-20 02:46:48,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 02:46:48,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:48,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:48,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 02:46:48,863 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:48,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:48,864 INFO L85 PathProgramCache]: Analyzing trace with hash 2075138129, now seen corresponding path program 1 times [2023-12-20 02:46:48,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:48,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496780705] [2023-12-20 02:46:48,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:48,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:48,922 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:48,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:48,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496780705] [2023-12-20 02:46:48,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496780705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:48,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:48,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:48,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012075273] [2023-12-20 02:46:48,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:48,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:48,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:48,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:48,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:48,924 INFO L87 Difference]: Start difference. First operand 155163 states and 194721 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 02:46:49,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:49,669 INFO L93 Difference]: Finished difference Result 198590 states and 248206 transitions. [2023-12-20 02:46:49,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:49,670 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 97 [2023-12-20 02:46:49,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:49,799 INFO L225 Difference]: With dead ends: 198590 [2023-12-20 02:46:49,799 INFO L226 Difference]: Without dead ends: 116955 [2023-12-20 02:46:49,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:49,828 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 173 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:49,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 861 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:49,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116955 states. [2023-12-20 02:46:51,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116955 to 116829. [2023-12-20 02:46:51,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116829 states, 116828 states have (on average 1.242039579552847) internal successors, (145105), 116828 states have internal predecessors, (145105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116829 states to 116829 states and 145105 transitions. [2023-12-20 02:46:51,712 INFO L78 Accepts]: Start accepts. Automaton has 116829 states and 145105 transitions. Word has length 97 [2023-12-20 02:46:51,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:51,712 INFO L495 AbstractCegarLoop]: Abstraction has 116829 states and 145105 transitions. [2023-12-20 02:46:51,713 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 02:46:51,713 INFO L276 IsEmpty]: Start isEmpty. Operand 116829 states and 145105 transitions. [2023-12-20 02:46:51,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:46:51,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:51,722 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:51,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 02:46:51,723 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:51,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:51,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1695526700, now seen corresponding path program 1 times [2023-12-20 02:46:51,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:51,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579092190] [2023-12-20 02:46:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:51,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:51,865 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 02:46:51,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:51,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579092190] [2023-12-20 02:46:51,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579092190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:51,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:51,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:51,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589311726] [2023-12-20 02:46:51,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:51,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:51,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:51,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:51,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:51,867 INFO L87 Difference]: Start difference. First operand 116829 states and 145105 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 02:46:52,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:52,289 INFO L93 Difference]: Finished difference Result 151682 states and 188021 transitions. [2023-12-20 02:46:52,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:52,290 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 98 [2023-12-20 02:46:52,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:52,400 INFO L225 Difference]: With dead ends: 151682 [2023-12-20 02:46:52,400 INFO L226 Difference]: Without dead ends: 78674 [2023-12-20 02:46:52,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:52,459 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 152 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:52,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 880 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78674 states. [2023-12-20 02:46:53,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78674 to 78500. [2023-12-20 02:46:53,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78500 states, 78499 states have (on average 1.2270984343749602) internal successors, (96326), 78499 states have internal predecessors, (96326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78500 states to 78500 states and 96326 transitions. [2023-12-20 02:46:53,806 INFO L78 Accepts]: Start accepts. Automaton has 78500 states and 96326 transitions. Word has length 98 [2023-12-20 02:46:53,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:53,806 INFO L495 AbstractCegarLoop]: Abstraction has 78500 states and 96326 transitions. [2023-12-20 02:46:53,806 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 02:46:53,806 INFO L276 IsEmpty]: Start isEmpty. Operand 78500 states and 96326 transitions. [2023-12-20 02:46:53,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:46:53,825 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:53,825 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 02:46:53,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 02:46:53,825 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:53,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:53,827 INFO L85 PathProgramCache]: Analyzing trace with hash 499642218, now seen corresponding path program 1 times [2023-12-20 02:46:53,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:53,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118671901] [2023-12-20 02:46:53,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:53,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:53,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:53,943 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 02:46:53,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:53,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118671901] [2023-12-20 02:46:53,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118671901] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:53,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:53,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:46:53,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509691637] [2023-12-20 02:46:53,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:53,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:46:53,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:53,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:46:53,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:53,945 INFO L87 Difference]: Start difference. First operand 78500 states and 96326 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 02:46:54,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:54,177 INFO L93 Difference]: Finished difference Result 98446 states and 120779 transitions. [2023-12-20 02:46:54,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:46:54,178 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 02:46:54,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:54,227 INFO L225 Difference]: With dead ends: 98446 [2023-12-20 02:46:54,227 INFO L226 Difference]: Without dead ends: 47098 [2023-12-20 02:46:54,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:46:54,256 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 135 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:54,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 925 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:46:54,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47098 states. [2023-12-20 02:46:54,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47098 to 37048. [2023-12-20 02:46:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37048 states, 37047 states have (on average 1.2192350257780658) internal successors, (45169), 37047 states have internal predecessors, (45169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:54,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37048 states to 37048 states and 45169 transitions. [2023-12-20 02:46:54,855 INFO L78 Accepts]: Start accepts. Automaton has 37048 states and 45169 transitions. Word has length 100 [2023-12-20 02:46:54,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:54,855 INFO L495 AbstractCegarLoop]: Abstraction has 37048 states and 45169 transitions. [2023-12-20 02:46:54,855 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 02:46:54,855 INFO L276 IsEmpty]: Start isEmpty. Operand 37048 states and 45169 transitions. [2023-12-20 02:46:54,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:46:54,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:54,862 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 02:46:54,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 02:46:54,862 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:54,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:54,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1545365470, now seen corresponding path program 1 times [2023-12-20 02:46:54,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:54,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982326180] [2023-12-20 02:46:54,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:54,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:54,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:54,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982326180] [2023-12-20 02:46:54,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982326180] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:46:54,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003080269] [2023-12-20 02:46:54,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:54,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:46:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:46:54,948 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:46:54,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 02:46:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:55,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 02:46:55,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:46:55,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:55,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:46:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:46:55,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003080269] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:46:55,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:46:55,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-20 02:46:55,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344164309] [2023-12-20 02:46:55,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:46:55,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:46:55,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:55,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:46:55,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:46:55,826 INFO L87 Difference]: Start difference. First operand 37048 states and 45169 transitions. Second operand has 14 states, 14 states have (on average 20.071428571428573) internal successors, (281), 14 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:56,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:56,501 INFO L93 Difference]: Finished difference Result 95327 states and 115726 transitions. [2023-12-20 02:46:56,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:46:56,502 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.071428571428573) internal successors, (281), 14 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 02:46:56,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:56,581 INFO L225 Difference]: With dead ends: 95327 [2023-12-20 02:46:56,582 INFO L226 Difference]: Without dead ends: 58862 [2023-12-20 02:46:56,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 195 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:46:56,609 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 3413 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3413 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:56,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3413 Valid, 1171 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:46:56,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58862 states. [2023-12-20 02:46:57,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58862 to 39558. [2023-12-20 02:46:57,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39558 states, 39557 states have (on average 1.2019111661652804) internal successors, (47544), 39557 states have internal predecessors, (47544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39558 states to 39558 states and 47544 transitions. [2023-12-20 02:46:57,147 INFO L78 Accepts]: Start accepts. Automaton has 39558 states and 47544 transitions. Word has length 102 [2023-12-20 02:46:57,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:57,147 INFO L495 AbstractCegarLoop]: Abstraction has 39558 states and 47544 transitions. [2023-12-20 02:46:57,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.071428571428573) internal successors, (281), 14 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 39558 states and 47544 transitions. [2023-12-20 02:46:57,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 02:46:57,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:57,155 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:46:57,160 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 02:46:57,355 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,SelfDestructingSolverStorable37 [2023-12-20 02:46:57,357 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:57,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1076353422, now seen corresponding path program 1 times [2023-12-20 02:46:57,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:57,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883959534] [2023-12-20 02:46:57,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:57,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:46:57,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:57,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883959534] [2023-12-20 02:46:57,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883959534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:57,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:57,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:46:57,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848085132] [2023-12-20 02:46:57,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:57,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:46:57,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:57,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:46:57,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:46:57,447 INFO L87 Difference]: Start difference. First operand 39558 states and 47544 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:58,089 INFO L93 Difference]: Finished difference Result 85555 states and 103707 transitions. [2023-12-20 02:46:58,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:58,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-20 02:46:58,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:58,163 INFO L225 Difference]: With dead ends: 85555 [2023-12-20 02:46:58,163 INFO L226 Difference]: Without dead ends: 70896 [2023-12-20 02:46:58,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:58,181 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 531 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:58,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1071 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:46:58,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70896 states. [2023-12-20 02:46:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70896 to 46063. [2023-12-20 02:46:58,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46063 states, 46062 states have (on average 1.2029438582779732) internal successors, (55410), 46062 states have internal predecessors, (55410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:58,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46063 states to 46063 states and 55410 transitions. [2023-12-20 02:46:58,736 INFO L78 Accepts]: Start accepts. Automaton has 46063 states and 55410 transitions. Word has length 103 [2023-12-20 02:46:58,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:46:58,737 INFO L495 AbstractCegarLoop]: Abstraction has 46063 states and 55410 transitions. [2023-12-20 02:46:58,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:58,737 INFO L276 IsEmpty]: Start isEmpty. Operand 46063 states and 55410 transitions. [2023-12-20 02:46:58,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:46:58,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:46:58,745 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 02:46:58,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-20 02:46:58,745 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:46:58,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:46:58,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1944217555, now seen corresponding path program 1 times [2023-12-20 02:46:58,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:46:58,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597497579] [2023-12-20 02:46:58,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:46:58,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:46:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:46:58,820 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 02:46:58,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:46:58,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597497579] [2023-12-20 02:46:58,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597497579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:46:58,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:46:58,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:46:58,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007960327] [2023-12-20 02:46:58,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:46:58,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:46:58,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:46:58,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:46:58,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:46:58,823 INFO L87 Difference]: Start difference. First operand 46063 states and 55410 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:46:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:46:59,210 INFO L93 Difference]: Finished difference Result 78073 states and 93492 transitions. [2023-12-20 02:46:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:46:59,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 02:46:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:46:59,274 INFO L225 Difference]: With dead ends: 78073 [2023-12-20 02:46:59,274 INFO L226 Difference]: Without dead ends: 67510 [2023-12-20 02:46:59,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:46:59,295 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 456 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:46:59,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 956 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:46:59,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67510 states. [2023-12-20 02:46:59,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67510 to 51400. [2023-12-20 02:46:59,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51400 states, 51399 states have (on average 1.2031167921554895) internal successors, (61839), 51399 states have internal predecessors, (61839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:00,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51400 states to 51400 states and 61839 transitions. [2023-12-20 02:47:00,202 INFO L78 Accepts]: Start accepts. Automaton has 51400 states and 61839 transitions. Word has length 104 [2023-12-20 02:47:00,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:00,202 INFO L495 AbstractCegarLoop]: Abstraction has 51400 states and 61839 transitions. [2023-12-20 02:47:00,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:00,202 INFO L276 IsEmpty]: Start isEmpty. Operand 51400 states and 61839 transitions. [2023-12-20 02:47:00,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:47:00,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:00,208 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 02:47:00,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-20 02:47:00,209 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:00,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:00,209 INFO L85 PathProgramCache]: Analyzing trace with hash -774191982, now seen corresponding path program 1 times [2023-12-20 02:47:00,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:00,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115471279] [2023-12-20 02:47:00,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:00,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:00,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:00,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115471279] [2023-12-20 02:47:00,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115471279] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:00,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662820439] [2023-12-20 02:47:00,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:00,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:00,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:00,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:00,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 02:47:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:00,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-20 02:47:00,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:01,486 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:01,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:01,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662820439] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:01,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:01,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 23 [2023-12-20 02:47:01,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752769990] [2023-12-20 02:47:01,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:01,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-20 02:47:01,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:01,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-20 02:47:01,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:47:01,969 INFO L87 Difference]: Start difference. First operand 51400 states and 61839 transitions. Second operand has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:05,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:05,981 INFO L93 Difference]: Finished difference Result 181569 states and 215134 transitions. [2023-12-20 02:47:05,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-12-20 02:47:05,982 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 02:47:05,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:06,143 INFO L225 Difference]: With dead ends: 181569 [2023-12-20 02:47:06,143 INFO L226 Difference]: Without dead ends: 149542 [2023-12-20 02:47:06,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1295 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1262, Invalid=3994, Unknown=0, NotChecked=0, Total=5256 [2023-12-20 02:47:06,184 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 4653 mSDsluCounter, 4939 mSDsCounter, 0 mSdLazyCounter, 4471 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4653 SdHoareTripleChecker+Valid, 5491 SdHoareTripleChecker+Invalid, 4517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 4471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:06,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4653 Valid, 5491 Invalid, 4517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 4471 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-20 02:47:06,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149542 states. [2023-12-20 02:47:07,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149542 to 83155. [2023-12-20 02:47:07,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83155 states, 83154 states have (on average 1.201734131851745) internal successors, (99929), 83154 states have internal predecessors, (99929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83155 states to 83155 states and 99929 transitions. [2023-12-20 02:47:07,500 INFO L78 Accepts]: Start accepts. Automaton has 83155 states and 99929 transitions. Word has length 104 [2023-12-20 02:47:07,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:07,500 INFO L495 AbstractCegarLoop]: Abstraction has 83155 states and 99929 transitions. [2023-12-20 02:47:07,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.565217391304348) internal successors, (266), 23 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 83155 states and 99929 transitions. [2023-12-20 02:47:07,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:47:07,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:07,512 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 02:47:07,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 02:47:07,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:07,719 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:07,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:07,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1553913624, now seen corresponding path program 1 times [2023-12-20 02:47:07,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:07,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159070168] [2023-12-20 02:47:07,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:07,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:07,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:07,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159070168] [2023-12-20 02:47:07,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159070168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:07,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:07,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:47:07,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677476285] [2023-12-20 02:47:07,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:07,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:47:07,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:47:07,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:07,775 INFO L87 Difference]: Start difference. First operand 83155 states and 99929 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 02:47:08,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:08,421 INFO L93 Difference]: Finished difference Result 156108 states and 187851 transitions. [2023-12-20 02:47:08,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:47:08,422 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 02:47:08,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:08,564 INFO L225 Difference]: With dead ends: 156108 [2023-12-20 02:47:08,564 INFO L226 Difference]: Without dead ends: 119810 [2023-12-20 02:47:08,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:08,592 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 151 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:08,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 994 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:47:08,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119810 states. [2023-12-20 02:47:09,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119810 to 84738. [2023-12-20 02:47:09,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84738 states, 84737 states have (on average 1.1917816302205648) internal successors, (100988), 84737 states have internal predecessors, (100988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:09,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84738 states to 84738 states and 100988 transitions. [2023-12-20 02:47:09,803 INFO L78 Accepts]: Start accepts. Automaton has 84738 states and 100988 transitions. Word has length 104 [2023-12-20 02:47:09,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:09,804 INFO L495 AbstractCegarLoop]: Abstraction has 84738 states and 100988 transitions. [2023-12-20 02:47:09,804 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 02:47:09,804 INFO L276 IsEmpty]: Start isEmpty. Operand 84738 states and 100988 transitions. [2023-12-20 02:47:09,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:47:09,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:09,812 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 02:47:09,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-20 02:47:09,813 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:09,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:09,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1245203663, now seen corresponding path program 1 times [2023-12-20 02:47:09,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:09,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875704838] [2023-12-20 02:47:09,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:09,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:47:10,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:10,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875704838] [2023-12-20 02:47:10,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875704838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:10,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:10,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:47:10,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52297535] [2023-12-20 02:47:10,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:10,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:47:10,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:10,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:47:10,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:47:10,026 INFO L87 Difference]: Start difference. First operand 84738 states and 100988 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:10,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:10,973 INFO L93 Difference]: Finished difference Result 107358 states and 127950 transitions. [2023-12-20 02:47:10,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 02:47:10,974 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 02:47:10,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:11,062 INFO L225 Difference]: With dead ends: 107358 [2023-12-20 02:47:11,062 INFO L226 Difference]: Without dead ends: 84789 [2023-12-20 02:47:11,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:47:11,079 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 2027 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:11,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 1384 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:47:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84789 states. [2023-12-20 02:47:11,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84789 to 84738. [2023-12-20 02:47:11,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84738 states, 84737 states have (on average 1.1917580277800726) internal successors, (100986), 84737 states have internal predecessors, (100986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84738 states to 84738 states and 100986 transitions. [2023-12-20 02:47:11,928 INFO L78 Accepts]: Start accepts. Automaton has 84738 states and 100986 transitions. Word has length 104 [2023-12-20 02:47:11,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:11,928 INFO L495 AbstractCegarLoop]: Abstraction has 84738 states and 100986 transitions. [2023-12-20 02:47:11,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:11,928 INFO L276 IsEmpty]: Start isEmpty. Operand 84738 states and 100986 transitions. [2023-12-20 02:47:11,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:47:11,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:11,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:11,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-20 02:47:11,937 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:11,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:11,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1967108445, now seen corresponding path program 1 times [2023-12-20 02:47:11,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:11,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229372668] [2023-12-20 02:47:11,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:11,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:12,251 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:12,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:12,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229372668] [2023-12-20 02:47:12,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229372668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:12,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:12,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:47:12,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186488154] [2023-12-20 02:47:12,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:12,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:47:12,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:12,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:47:12,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:12,253 INFO L87 Difference]: Start difference. First operand 84738 states and 100986 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 02:47:12,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:12,535 INFO L93 Difference]: Finished difference Result 117443 states and 139813 transitions. [2023-12-20 02:47:12,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:47:12,535 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 02:47:12,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:12,622 INFO L225 Difference]: With dead ends: 117443 [2023-12-20 02:47:12,622 INFO L226 Difference]: Without dead ends: 88779 [2023-12-20 02:47:12,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:47:12,656 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 116 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:12,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1040 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:47:12,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88779 states. [2023-12-20 02:47:13,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88779 to 88568. [2023-12-20 02:47:13,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88568 states, 88567 states have (on average 1.1881965065995235) internal successors, (105235), 88567 states have internal predecessors, (105235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:13,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88568 states to 88568 states and 105235 transitions. [2023-12-20 02:47:13,785 INFO L78 Accepts]: Start accepts. Automaton has 88568 states and 105235 transitions. Word has length 105 [2023-12-20 02:47:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:13,785 INFO L495 AbstractCegarLoop]: Abstraction has 88568 states and 105235 transitions. [2023-12-20 02:47:13,785 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 02:47:13,785 INFO L276 IsEmpty]: Start isEmpty. Operand 88568 states and 105235 transitions. [2023-12-20 02:47:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:47:13,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:13,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:13,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 02:47:13,794 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:13,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:13,795 INFO L85 PathProgramCache]: Analyzing trace with hash -602731510, now seen corresponding path program 1 times [2023-12-20 02:47:13,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:13,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068165966] [2023-12-20 02:47:13,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:13,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:14,076 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:14,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:14,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068165966] [2023-12-20 02:47:14,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068165966] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:14,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917598322] [2023-12-20 02:47:14,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:14,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:14,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:14,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:14,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 02:47:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:14,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 02:47:14,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:15,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:15,788 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:15,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917598322] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:15,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:15,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 12] total 28 [2023-12-20 02:47:15,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86157653] [2023-12-20 02:47:15,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:15,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 02:47:15,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:15,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 02:47:15,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:47:15,790 INFO L87 Difference]: Start difference. First operand 88568 states and 105235 transitions. Second operand has 29 states, 29 states have (on average 9.793103448275861) internal successors, (284), 28 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 02:47:23,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:23,186 INFO L93 Difference]: Finished difference Result 358392 states and 422403 transitions. [2023-12-20 02:47:23,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2023-12-20 02:47:23,187 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.793103448275861) internal successors, (284), 28 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 105 [2023-12-20 02:47:23,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:23,628 INFO L225 Difference]: With dead ends: 358392 [2023-12-20 02:47:23,628 INFO L226 Difference]: Without dead ends: 318835 [2023-12-20 02:47:23,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5811 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3198, Invalid=13832, Unknown=0, NotChecked=0, Total=17030 [2023-12-20 02:47:23,710 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 9401 mSDsluCounter, 7145 mSDsCounter, 0 mSdLazyCounter, 6470 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9401 SdHoareTripleChecker+Valid, 7754 SdHoareTripleChecker+Invalid, 6616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 6470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:23,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9401 Valid, 7754 Invalid, 6616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 6470 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-20 02:47:23,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318835 states. [2023-12-20 02:47:25,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318835 to 89315. [2023-12-20 02:47:25,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89315 states, 89314 states have (on average 1.1877981055601585) internal successors, (106087), 89314 states have internal predecessors, (106087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:25,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89315 states to 89315 states and 106087 transitions. [2023-12-20 02:47:25,783 INFO L78 Accepts]: Start accepts. Automaton has 89315 states and 106087 transitions. Word has length 105 [2023-12-20 02:47:25,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:25,783 INFO L495 AbstractCegarLoop]: Abstraction has 89315 states and 106087 transitions. [2023-12-20 02:47:25,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.793103448275861) internal successors, (284), 28 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 02:47:25,783 INFO L276 IsEmpty]: Start isEmpty. Operand 89315 states and 106087 transitions. [2023-12-20 02:47:25,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:47:25,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:25,792 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:25,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 02:47:25,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:25,993 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:25,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:25,993 INFO L85 PathProgramCache]: Analyzing trace with hash -520731978, now seen corresponding path program 1 times [2023-12-20 02:47:25,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:25,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782768033] [2023-12-20 02:47:25,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:25,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:47:26,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:26,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782768033] [2023-12-20 02:47:26,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782768033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:26,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:26,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:47:26,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450455797] [2023-12-20 02:47:26,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:26,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:47:26,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:26,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:47:26,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:47:26,286 INFO L87 Difference]: Start difference. First operand 89315 states and 106087 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:26,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:26,898 INFO L93 Difference]: Finished difference Result 146600 states and 174071 transitions. [2023-12-20 02:47:26,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:47:26,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 02:47:26,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:27,045 INFO L225 Difference]: With dead ends: 146600 [2023-12-20 02:47:27,045 INFO L226 Difference]: Without dead ends: 127640 [2023-12-20 02:47:27,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:47:27,084 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 469 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:27,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 1074 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:47:27,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127640 states. [2023-12-20 02:47:28,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127640 to 98843. [2023-12-20 02:47:28,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98843 states, 98842 states have (on average 1.188401691588596) internal successors, (117464), 98842 states have internal predecessors, (117464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:28,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98843 states to 98843 states and 117464 transitions. [2023-12-20 02:47:28,375 INFO L78 Accepts]: Start accepts. Automaton has 98843 states and 117464 transitions. Word has length 106 [2023-12-20 02:47:28,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:28,375 INFO L495 AbstractCegarLoop]: Abstraction has 98843 states and 117464 transitions. [2023-12-20 02:47:28,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:28,376 INFO L276 IsEmpty]: Start isEmpty. Operand 98843 states and 117464 transitions. [2023-12-20 02:47:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:47:28,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:28,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:28,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 02:47:28,385 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:28,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:28,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1875705013, now seen corresponding path program 1 times [2023-12-20 02:47:28,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:28,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183193300] [2023-12-20 02:47:28,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:28,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:28,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:28,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:28,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183193300] [2023-12-20 02:47:28,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183193300] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:28,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031277321] [2023-12-20 02:47:28,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:28,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:28,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:28,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:28,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 02:47:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:29,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-20 02:47:29,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:29,558 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:29,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:47:29,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031277321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:29,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:47:29,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 17 [2023-12-20 02:47:29,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573348369] [2023-12-20 02:47:29,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:29,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:47:29,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:29,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:47:29,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:47:29,559 INFO L87 Difference]: Start difference. First operand 98843 states and 117464 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:30,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:30,493 INFO L93 Difference]: Finished difference Result 119267 states and 141727 transitions. [2023-12-20 02:47:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:47:30,494 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 02:47:30,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:30,612 INFO L225 Difference]: With dead ends: 119267 [2023-12-20 02:47:30,612 INFO L226 Difference]: Without dead ends: 109360 [2023-12-20 02:47:30,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:47:30,635 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 964 mSDsluCounter, 3841 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 4496 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:30,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 4496 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:47:30,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109360 states. [2023-12-20 02:47:31,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109360 to 105052. [2023-12-20 02:47:31,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105052 states, 105051 states have (on average 1.1883275742258521) internal successors, (124835), 105051 states have internal predecessors, (124835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:31,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105052 states to 105052 states and 124835 transitions. [2023-12-20 02:47:31,907 INFO L78 Accepts]: Start accepts. Automaton has 105052 states and 124835 transitions. Word has length 106 [2023-12-20 02:47:31,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:31,907 INFO L495 AbstractCegarLoop]: Abstraction has 105052 states and 124835 transitions. [2023-12-20 02:47:31,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 105052 states and 124835 transitions. [2023-12-20 02:47:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:47:31,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:31,918 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:31,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 02:47:32,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:32,119 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:32,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:32,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1702560793, now seen corresponding path program 1 times [2023-12-20 02:47:32,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:32,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375242866] [2023-12-20 02:47:32,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:32,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:32,638 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:32,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:32,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375242866] [2023-12-20 02:47:32,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375242866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:47:32,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:47:32,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 02:47:32,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078181943] [2023-12-20 02:47:32,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:47:32,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:47:32,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:32,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:47:32,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:47:32,640 INFO L87 Difference]: Start difference. First operand 105052 states and 124835 transitions. Second operand has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:38,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:38,970 INFO L93 Difference]: Finished difference Result 175094 states and 205145 transitions. [2023-12-20 02:47:38,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2023-12-20 02:47:38,971 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 02:47:38,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:39,160 INFO L225 Difference]: With dead ends: 175094 [2023-12-20 02:47:39,160 INFO L226 Difference]: Without dead ends: 165289 [2023-12-20 02:47:39,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6830 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=2725, Invalid=14045, Unknown=0, NotChecked=0, Total=16770 [2023-12-20 02:47:39,206 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 6165 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 3436 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6165 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 3513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 3436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:39,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6165 Valid, 3837 Invalid, 3513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 3436 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 02:47:39,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165289 states. [2023-12-20 02:47:40,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165289 to 104946. [2023-12-20 02:47:40,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104946 states, 104945 states have (on average 1.1883462766210873) internal successors, (124711), 104945 states have internal predecessors, (124711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:40,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104946 states to 104946 states and 124711 transitions. [2023-12-20 02:47:40,745 INFO L78 Accepts]: Start accepts. Automaton has 104946 states and 124711 transitions. Word has length 106 [2023-12-20 02:47:40,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:47:40,745 INFO L495 AbstractCegarLoop]: Abstraction has 104946 states and 124711 transitions. [2023-12-20 02:47:40,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.571428571428571) internal successors, (106), 13 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 104946 states and 124711 transitions. [2023-12-20 02:47:40,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:47:40,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:47:40,756 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:47:40,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-20 02:47:40,757 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:47:40,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:47:40,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1085848739, now seen corresponding path program 1 times [2023-12-20 02:47:40,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:47:40,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365747212] [2023-12-20 02:47:40,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:40,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:47:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:41,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:41,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:47:41,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365747212] [2023-12-20 02:47:41,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365747212] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:47:41,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049657860] [2023-12-20 02:47:41,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:47:41,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:47:41,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:47:41,830 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:47:41,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 02:47:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:47:42,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 02:47:42,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:47:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:42,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:47:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:47:43,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049657860] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:47:43,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:47:43,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 10] total 34 [2023-12-20 02:47:43,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571474115] [2023-12-20 02:47:43,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:47:43,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-20 02:47:43,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:47:43,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-20 02:47:43,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 02:47:43,116 INFO L87 Difference]: Start difference. First operand 104946 states and 124711 transitions. Second operand has 34 states, 34 states have (on average 8.411764705882353) internal successors, (286), 34 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:47:59,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:47:59,508 INFO L93 Difference]: Finished difference Result 182926 states and 214689 transitions. [2023-12-20 02:47:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2023-12-20 02:47:59,509 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.411764705882353) internal successors, (286), 34 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 02:47:59,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:47:59,788 INFO L225 Difference]: With dead ends: 182926 [2023-12-20 02:47:59,788 INFO L226 Difference]: Without dead ends: 171054 [2023-12-20 02:47:59,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13041 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=7259, Invalid=30571, Unknown=0, NotChecked=0, Total=37830 [2023-12-20 02:47:59,800 INFO L413 NwaCegarLoop]: 1102 mSDtfsCounter, 4387 mSDsluCounter, 18504 mSDsCounter, 0 mSdLazyCounter, 5800 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4387 SdHoareTripleChecker+Valid, 19606 SdHoareTripleChecker+Invalid, 5822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 5800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:47:59,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4387 Valid, 19606 Invalid, 5822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 5800 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-20 02:47:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171054 states. [2023-12-20 02:48:00,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171054 to 115809. [2023-12-20 02:48:01,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115809 states, 115808 states have (on average 1.1866019618679193) internal successors, (137418), 115808 states have internal predecessors, (137418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:01,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115809 states to 115809 states and 137418 transitions. [2023-12-20 02:48:01,133 INFO L78 Accepts]: Start accepts. Automaton has 115809 states and 137418 transitions. Word has length 106 [2023-12-20 02:48:01,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:01,134 INFO L495 AbstractCegarLoop]: Abstraction has 115809 states and 137418 transitions. [2023-12-20 02:48:01,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.411764705882353) internal successors, (286), 34 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:01,134 INFO L276 IsEmpty]: Start isEmpty. Operand 115809 states and 137418 transitions. [2023-12-20 02:48:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:01,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:01,145 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:01,150 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 02:48:01,346 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,SelfDestructingSolverStorable48 [2023-12-20 02:48:01,346 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:01,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:01,347 INFO L85 PathProgramCache]: Analyzing trace with hash 988212410, now seen corresponding path program 1 times [2023-12-20 02:48:01,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:01,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711849599] [2023-12-20 02:48:01,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:01,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:48:01,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:01,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711849599] [2023-12-20 02:48:01,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711849599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:01,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:01,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:48:01,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91952424] [2023-12-20 02:48:01,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:01,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:48:01,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:01,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:48:01,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:01,452 INFO L87 Difference]: Start difference. First operand 115809 states and 137418 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:02,254 INFO L93 Difference]: Finished difference Result 222869 states and 265346 transitions. [2023-12-20 02:48:02,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:48:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:02,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:02,399 INFO L225 Difference]: With dead ends: 222869 [2023-12-20 02:48:02,399 INFO L226 Difference]: Without dead ends: 134709 [2023-12-20 02:48:02,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:02,446 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 291 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:02,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 732 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:48:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134709 states. [2023-12-20 02:48:03,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134709 to 130047. [2023-12-20 02:48:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130047 states, 130046 states have (on average 1.1798517447672363) internal successors, (153435), 130046 states have internal predecessors, (153435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130047 states to 130047 states and 153435 transitions. [2023-12-20 02:48:04,151 INFO L78 Accepts]: Start accepts. Automaton has 130047 states and 153435 transitions. Word has length 107 [2023-12-20 02:48:04,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:04,151 INFO L495 AbstractCegarLoop]: Abstraction has 130047 states and 153435 transitions. [2023-12-20 02:48:04,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:04,151 INFO L276 IsEmpty]: Start isEmpty. Operand 130047 states and 153435 transitions. [2023-12-20 02:48:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:04,162 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:04,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:04,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-12-20 02:48:04,162 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:04,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:04,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1524015769, now seen corresponding path program 1 times [2023-12-20 02:48:04,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:04,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887570898] [2023-12-20 02:48:04,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:04,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:04,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:04,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:04,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887570898] [2023-12-20 02:48:04,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887570898] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:04,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623242504] [2023-12-20 02:48:04,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:04,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:04,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:04,618 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:04,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 02:48:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:04,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:48:04,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:05,523 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:05,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:05,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623242504] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:05,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:05,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 10] total 29 [2023-12-20 02:48:05,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761134351] [2023-12-20 02:48:05,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:05,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 02:48:05,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:05,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 02:48:05,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=717, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:48:05,870 INFO L87 Difference]: Start difference. First operand 130047 states and 153435 transitions. Second operand has 29 states, 29 states have (on average 8.689655172413794) internal successors, (252), 29 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:07,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:07,957 INFO L93 Difference]: Finished difference Result 266852 states and 314032 transitions. [2023-12-20 02:48:07,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-20 02:48:07,958 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.689655172413794) internal successors, (252), 29 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:07,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:08,489 INFO L225 Difference]: With dead ends: 266852 [2023-12-20 02:48:08,489 INFO L226 Difference]: Without dead ends: 259104 [2023-12-20 02:48:08,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=515, Invalid=2137, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 02:48:08,549 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 5246 mSDsluCounter, 10836 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5246 SdHoareTripleChecker+Valid, 11676 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:08,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5246 Valid, 11676 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:48:08,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259104 states. [2023-12-20 02:48:10,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259104 to 130219. [2023-12-20 02:48:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130219 states, 130218 states have (on average 1.1797677740404553) internal successors, (153627), 130218 states have internal predecessors, (153627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:10,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130219 states to 130219 states and 153627 transitions. [2023-12-20 02:48:10,431 INFO L78 Accepts]: Start accepts. Automaton has 130219 states and 153627 transitions. Word has length 107 [2023-12-20 02:48:10,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:10,431 INFO L495 AbstractCegarLoop]: Abstraction has 130219 states and 153627 transitions. [2023-12-20 02:48:10,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.689655172413794) internal successors, (252), 29 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:10,431 INFO L276 IsEmpty]: Start isEmpty. Operand 130219 states and 153627 transitions. [2023-12-20 02:48:10,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:10,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:10,441 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:10,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:10,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:10,642 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:10,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:10,643 INFO L85 PathProgramCache]: Analyzing trace with hash -942019966, now seen corresponding path program 1 times [2023-12-20 02:48:10,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:10,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337145378] [2023-12-20 02:48:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:10,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 02:48:10,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:10,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337145378] [2023-12-20 02:48:10,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337145378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:10,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:10,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:48:10,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791208926] [2023-12-20 02:48:10,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:10,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:48:10,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:10,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:48:10,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:48:10,711 INFO L87 Difference]: Start difference. First operand 130219 states and 153627 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:11,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:11,635 INFO L93 Difference]: Finished difference Result 177051 states and 208120 transitions. [2023-12-20 02:48:11,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:48:11,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:11,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:11,808 INFO L225 Difference]: With dead ends: 177051 [2023-12-20 02:48:11,809 INFO L226 Difference]: Without dead ends: 162290 [2023-12-20 02:48:11,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:48:11,840 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 431 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:11,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 975 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:48:11,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162290 states. [2023-12-20 02:48:13,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162290 to 130111. [2023-12-20 02:48:13,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130111 states, 130110 states have (on average 1.179732534009684) internal successors, (153495), 130110 states have internal predecessors, (153495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130111 states to 130111 states and 153495 transitions. [2023-12-20 02:48:13,655 INFO L78 Accepts]: Start accepts. Automaton has 130111 states and 153495 transitions. Word has length 107 [2023-12-20 02:48:13,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:13,655 INFO L495 AbstractCegarLoop]: Abstraction has 130111 states and 153495 transitions. [2023-12-20 02:48:13,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:13,655 INFO L276 IsEmpty]: Start isEmpty. Operand 130111 states and 153495 transitions. [2023-12-20 02:48:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:13,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:13,663 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:13,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-12-20 02:48:13,663 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:13,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:13,664 INFO L85 PathProgramCache]: Analyzing trace with hash -2067279935, now seen corresponding path program 1 times [2023-12-20 02:48:13,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:13,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88111880] [2023-12-20 02:48:13,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:13,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:13,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:48:13,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:13,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88111880] [2023-12-20 02:48:13,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88111880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:13,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:13,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:48:13,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162461945] [2023-12-20 02:48:13,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:13,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:48:13,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:13,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:48:13,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:48:13,855 INFO L87 Difference]: Start difference. First operand 130111 states and 153495 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:15,163 INFO L93 Difference]: Finished difference Result 198307 states and 234084 transitions. [2023-12-20 02:48:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:48:15,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:15,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:15,340 INFO L225 Difference]: With dead ends: 198307 [2023-12-20 02:48:15,340 INFO L226 Difference]: Without dead ends: 183542 [2023-12-20 02:48:15,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:48:15,382 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 1789 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:15,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 2053 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:48:15,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183542 states. [2023-12-20 02:48:16,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183542 to 129999. [2023-12-20 02:48:16,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129999 states, 129998 states have (on average 1.1797873813443285) internal successors, (153370), 129998 states have internal predecessors, (153370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129999 states to 129999 states and 153370 transitions. [2023-12-20 02:48:17,107 INFO L78 Accepts]: Start accepts. Automaton has 129999 states and 153370 transitions. Word has length 107 [2023-12-20 02:48:17,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:17,107 INFO L495 AbstractCegarLoop]: Abstraction has 129999 states and 153370 transitions. [2023-12-20 02:48:17,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:17,107 INFO L276 IsEmpty]: Start isEmpty. Operand 129999 states and 153370 transitions. [2023-12-20 02:48:17,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:17,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:17,115 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:17,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-20 02:48:17,116 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:17,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:17,116 INFO L85 PathProgramCache]: Analyzing trace with hash -29136948, now seen corresponding path program 1 times [2023-12-20 02:48:17,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:17,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415872982] [2023-12-20 02:48:17,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:17,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:17,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:17,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415872982] [2023-12-20 02:48:17,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415872982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:17,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:17,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:48:17,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278116079] [2023-12-20 02:48:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:17,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:48:17,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:48:17,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:17,185 INFO L87 Difference]: Start difference. First operand 129999 states and 153370 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:17,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:17,965 INFO L93 Difference]: Finished difference Result 219579 states and 258123 transitions. [2023-12-20 02:48:17,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:48:17,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:17,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:18,069 INFO L225 Difference]: With dead ends: 219579 [2023-12-20 02:48:18,070 INFO L226 Difference]: Without dead ends: 91232 [2023-12-20 02:48:18,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:18,123 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 149 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:18,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 801 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:48:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91232 states. [2023-12-20 02:48:19,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91232 to 85805. [2023-12-20 02:48:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85805 states, 85804 states have (on average 1.1545965223066523) internal successors, (99069), 85804 states have internal predecessors, (99069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85805 states to 85805 states and 99069 transitions. [2023-12-20 02:48:19,305 INFO L78 Accepts]: Start accepts. Automaton has 85805 states and 99069 transitions. Word has length 107 [2023-12-20 02:48:19,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:19,305 INFO L495 AbstractCegarLoop]: Abstraction has 85805 states and 99069 transitions. [2023-12-20 02:48:19,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:19,305 INFO L276 IsEmpty]: Start isEmpty. Operand 85805 states and 99069 transitions. [2023-12-20 02:48:19,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:19,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:19,311 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:19,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-20 02:48:19,311 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:19,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:19,311 INFO L85 PathProgramCache]: Analyzing trace with hash 960482339, now seen corresponding path program 1 times [2023-12-20 02:48:19,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:19,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541166382] [2023-12-20 02:48:19,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:19,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:19,555 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:19,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:19,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541166382] [2023-12-20 02:48:19,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541166382] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:19,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163855627] [2023-12-20 02:48:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:19,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:19,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:19,560 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:19,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 02:48:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:19,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-20 02:48:19,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:20,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:21,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163855627] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:21,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:21,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2023-12-20 02:48:21,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129142965] [2023-12-20 02:48:21,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:21,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-20 02:48:21,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-20 02:48:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:48:21,119 INFO L87 Difference]: Start difference. First operand 85805 states and 99069 transitions. Second operand has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 22 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:24,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:24,633 INFO L93 Difference]: Finished difference Result 189885 states and 218231 transitions. [2023-12-20 02:48:24,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-20 02:48:24,634 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 22 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:24,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:24,809 INFO L225 Difference]: With dead ends: 189885 [2023-12-20 02:48:24,810 INFO L226 Difference]: Without dead ends: 185329 [2023-12-20 02:48:24,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=517, Invalid=2239, Unknown=0, NotChecked=0, Total=2756 [2023-12-20 02:48:24,850 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 4313 mSDsluCounter, 5761 mSDsCounter, 0 mSdLazyCounter, 4525 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4313 SdHoareTripleChecker+Valid, 6234 SdHoareTripleChecker+Invalid, 4578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 4525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:24,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4313 Valid, 6234 Invalid, 4578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 4525 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-20 02:48:24,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185329 states. [2023-12-20 02:48:25,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185329 to 85732. [2023-12-20 02:48:26,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85732 states, 85731 states have (on average 1.1545881886365492) internal successors, (98984), 85731 states have internal predecessors, (98984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85732 states to 85732 states and 98984 transitions. [2023-12-20 02:48:26,146 INFO L78 Accepts]: Start accepts. Automaton has 85732 states and 98984 transitions. Word has length 107 [2023-12-20 02:48:26,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:26,146 INFO L495 AbstractCegarLoop]: Abstraction has 85732 states and 98984 transitions. [2023-12-20 02:48:26,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.636363636363637) internal successors, (256), 22 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:26,146 INFO L276 IsEmpty]: Start isEmpty. Operand 85732 states and 98984 transitions. [2023-12-20 02:48:26,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:26,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:26,151 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:26,157 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:26,352 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,SelfDestructingSolverStorable54 [2023-12-20 02:48:26,352 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:26,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:26,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1495038669, now seen corresponding path program 1 times [2023-12-20 02:48:26,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:26,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730478392] [2023-12-20 02:48:26,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:26,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:48:26,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:26,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730478392] [2023-12-20 02:48:26,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730478392] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:26,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:26,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:48:26,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089802399] [2023-12-20 02:48:26,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:26,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:48:26,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:26,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:48:26,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:48:26,409 INFO L87 Difference]: Start difference. First operand 85732 states and 98984 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:27,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:27,108 INFO L93 Difference]: Finished difference Result 129727 states and 149739 transitions. [2023-12-20 02:48:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:48:27,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:27,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:27,224 INFO L225 Difference]: With dead ends: 129727 [2023-12-20 02:48:27,225 INFO L226 Difference]: Without dead ends: 115990 [2023-12-20 02:48:27,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:48:27,259 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 430 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:27,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1057 Invalid, 530 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:48:27,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115990 states. [2023-12-20 02:48:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115990 to 85507. [2023-12-20 02:48:28,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85507 states, 85506 states have (on average 1.1544803873412393) internal successors, (98715), 85506 states have internal predecessors, (98715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:28,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85507 states to 85507 states and 98715 transitions. [2023-12-20 02:48:28,413 INFO L78 Accepts]: Start accepts. Automaton has 85507 states and 98715 transitions. Word has length 107 [2023-12-20 02:48:28,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:28,413 INFO L495 AbstractCegarLoop]: Abstraction has 85507 states and 98715 transitions. [2023-12-20 02:48:28,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:28,413 INFO L276 IsEmpty]: Start isEmpty. Operand 85507 states and 98715 transitions. [2023-12-20 02:48:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:28,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:28,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:28,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-20 02:48:28,418 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:28,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:28,419 INFO L85 PathProgramCache]: Analyzing trace with hash -621560974, now seen corresponding path program 1 times [2023-12-20 02:48:28,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:28,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798853885] [2023-12-20 02:48:28,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:28,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:48:28,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:28,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798853885] [2023-12-20 02:48:28,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798853885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:28,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:28,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:48:28,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951122633] [2023-12-20 02:48:28,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:28,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:48:28,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:28,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:48:28,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:48:28,554 INFO L87 Difference]: Start difference. First operand 85507 states and 98715 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:29,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:29,316 INFO L93 Difference]: Finished difference Result 97878 states and 113169 transitions. [2023-12-20 02:48:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:48:29,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:29,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:29,402 INFO L225 Difference]: With dead ends: 97878 [2023-12-20 02:48:29,402 INFO L226 Difference]: Without dead ends: 88777 [2023-12-20 02:48:29,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:48:29,418 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 1747 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:29,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 1048 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:48:29,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88777 states. [2023-12-20 02:48:30,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88777 to 85399. [2023-12-20 02:48:30,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85399 states, 85398 states have (on average 1.154546944893323) internal successors, (98596), 85398 states have internal predecessors, (98596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:30,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85399 states to 85399 states and 98596 transitions. [2023-12-20 02:48:30,421 INFO L78 Accepts]: Start accepts. Automaton has 85399 states and 98596 transitions. Word has length 107 [2023-12-20 02:48:30,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:30,421 INFO L495 AbstractCegarLoop]: Abstraction has 85399 states and 98596 transitions. [2023-12-20 02:48:30,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:30,421 INFO L276 IsEmpty]: Start isEmpty. Operand 85399 states and 98596 transitions. [2023-12-20 02:48:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:30,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:30,428 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:30,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-20 02:48:30,429 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:30,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:30,429 INFO L85 PathProgramCache]: Analyzing trace with hash -226222990, now seen corresponding path program 1 times [2023-12-20 02:48:30,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:30,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867561241] [2023-12-20 02:48:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:30,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:31,364 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:31,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:31,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867561241] [2023-12-20 02:48:31,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867561241] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:31,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419625626] [2023-12-20 02:48:31,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:31,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:31,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:31,366 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:31,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-20 02:48:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:31,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 02:48:31,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:32,163 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:32,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:32,793 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:32,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419625626] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:32,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:32,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 35 [2023-12-20 02:48:32,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460917418] [2023-12-20 02:48:32,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:32,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-20 02:48:32,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:32,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-20 02:48:32,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1087, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:48:32,795 INFO L87 Difference]: Start difference. First operand 85399 states and 98596 transitions. Second operand has 35 states, 35 states have (on average 8.428571428571429) internal successors, (295), 35 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:37,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:37,653 INFO L93 Difference]: Finished difference Result 121081 states and 138925 transitions. [2023-12-20 02:48:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-12-20 02:48:37,653 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 8.428571428571429) internal successors, (295), 35 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:37,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:37,770 INFO L225 Difference]: With dead ends: 121081 [2023-12-20 02:48:37,770 INFO L226 Difference]: Without dead ends: 105596 [2023-12-20 02:48:37,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1730 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1357, Invalid=7015, Unknown=0, NotChecked=0, Total=8372 [2023-12-20 02:48:37,791 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 4005 mSDsluCounter, 20248 mSDsCounter, 0 mSdLazyCounter, 5356 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4005 SdHoareTripleChecker+Valid, 21157 SdHoareTripleChecker+Invalid, 5373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 5356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:37,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4005 Valid, 21157 Invalid, 5373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 5356 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-20 02:48:37,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105596 states. [2023-12-20 02:48:38,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105596 to 84697. [2023-12-20 02:48:38,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84697 states, 84696 states have (on average 1.1521441390384435) internal successors, (97582), 84696 states have internal predecessors, (97582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:38,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84697 states to 84697 states and 97582 transitions. [2023-12-20 02:48:38,636 INFO L78 Accepts]: Start accepts. Automaton has 84697 states and 97582 transitions. Word has length 107 [2023-12-20 02:48:38,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:38,636 INFO L495 AbstractCegarLoop]: Abstraction has 84697 states and 97582 transitions. [2023-12-20 02:48:38,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 8.428571428571429) internal successors, (295), 35 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:38,636 INFO L276 IsEmpty]: Start isEmpty. Operand 84697 states and 97582 transitions. [2023-12-20 02:48:38,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:38,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:38,641 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:38,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:38,841 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,SelfDestructingSolverStorable57 [2023-12-20 02:48:38,842 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:38,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:38,842 INFO L85 PathProgramCache]: Analyzing trace with hash 684969545, now seen corresponding path program 1 times [2023-12-20 02:48:38,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:38,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464399625] [2023-12-20 02:48:38,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:38,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:38,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:38,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464399625] [2023-12-20 02:48:38,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464399625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:38,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:38,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:48:38,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752568178] [2023-12-20 02:48:38,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:38,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:48:38,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:38,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:48:38,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:38,921 INFO L87 Difference]: Start difference. First operand 84697 states and 97582 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:39,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:39,418 INFO L93 Difference]: Finished difference Result 122716 states and 141250 transitions. [2023-12-20 02:48:39,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:48:39,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:39,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:39,468 INFO L225 Difference]: With dead ends: 122716 [2023-12-20 02:48:39,469 INFO L226 Difference]: Without dead ends: 41843 [2023-12-20 02:48:39,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:39,500 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 186 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:39,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 751 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:48:39,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41843 states. [2023-12-20 02:48:39,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41843 to 41008. [2023-12-20 02:48:40,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41008 states, 41007 states have (on average 1.127904991830663) internal successors, (46252), 41007 states have internal predecessors, (46252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41008 states to 41008 states and 46252 transitions. [2023-12-20 02:48:40,074 INFO L78 Accepts]: Start accepts. Automaton has 41008 states and 46252 transitions. Word has length 107 [2023-12-20 02:48:40,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:40,075 INFO L495 AbstractCegarLoop]: Abstraction has 41008 states and 46252 transitions. [2023-12-20 02:48:40,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:40,075 INFO L276 IsEmpty]: Start isEmpty. Operand 41008 states and 46252 transitions. [2023-12-20 02:48:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:40,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:40,079 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:40,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-12-20 02:48:40,079 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:40,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:40,079 INFO L85 PathProgramCache]: Analyzing trace with hash -689511982, now seen corresponding path program 1 times [2023-12-20 02:48:40,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:40,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393855673] [2023-12-20 02:48:40,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:40,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:41,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:41,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393855673] [2023-12-20 02:48:41,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393855673] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:41,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157372640] [2023-12-20 02:48:41,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:41,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:41,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:41,131 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:41,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-20 02:48:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:41,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:48:41,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:42,457 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:43,297 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:43,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157372640] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:43,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:43,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 39 [2023-12-20 02:48:43,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277109883] [2023-12-20 02:48:43,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:43,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-20 02:48:43,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:43,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-20 02:48:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1430, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:48:43,299 INFO L87 Difference]: Start difference. First operand 41008 states and 46252 transitions. Second operand has 40 states, 40 states have (on average 7.675) internal successors, (307), 39 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:57,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:57,625 INFO L93 Difference]: Finished difference Result 92049 states and 103131 transitions. [2023-12-20 02:48:57,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2023-12-20 02:48:57,626 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 7.675) internal successors, (307), 39 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:57,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:57,704 INFO L225 Difference]: With dead ends: 92049 [2023-12-20 02:48:57,704 INFO L226 Difference]: Without dead ends: 86191 [2023-12-20 02:48:57,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14945 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=6654, Invalid=36402, Unknown=0, NotChecked=0, Total=43056 [2023-12-20 02:48:57,728 INFO L413 NwaCegarLoop]: 1100 mSDtfsCounter, 7904 mSDsluCounter, 19981 mSDsCounter, 0 mSdLazyCounter, 5727 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7904 SdHoareTripleChecker+Valid, 21081 SdHoareTripleChecker+Invalid, 5796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 5727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:57,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7904 Valid, 21081 Invalid, 5796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 5727 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-20 02:48:57,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86191 states. [2023-12-20 02:48:58,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86191 to 39967. [2023-12-20 02:48:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39967 states, 39966 states have (on average 1.1267077015463143) internal successors, (45030), 39966 states have internal predecessors, (45030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:58,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39967 states to 39967 states and 45030 transitions. [2023-12-20 02:48:58,208 INFO L78 Accepts]: Start accepts. Automaton has 39967 states and 45030 transitions. Word has length 107 [2023-12-20 02:48:58,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:58,208 INFO L495 AbstractCegarLoop]: Abstraction has 39967 states and 45030 transitions. [2023-12-20 02:48:58,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 7.675) internal successors, (307), 39 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:58,209 INFO L276 IsEmpty]: Start isEmpty. Operand 39967 states and 45030 transitions. [2023-12-20 02:48:58,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-20 02:48:58,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:58,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:58,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:58,618 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,SelfDestructingSolverStorable59 [2023-12-20 02:48:58,619 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:58,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash -703412368, now seen corresponding path program 1 times [2023-12-20 02:48:58,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:58,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424592412] [2023-12-20 02:48:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:58,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:58,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:48:58,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:58,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424592412] [2023-12-20 02:48:58,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424592412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:58,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:58,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 02:48:58,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337710647] [2023-12-20 02:48:58,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:58,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:48:58,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:58,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:48:58,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-20 02:48:58,981 INFO L87 Difference]: Start difference. First operand 39967 states and 45030 transitions. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:59,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:59,770 INFO L93 Difference]: Finished difference Result 62792 states and 70899 transitions. [2023-12-20 02:48:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 02:48:59,770 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-20 02:48:59,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:59,830 INFO L225 Difference]: With dead ends: 62792 [2023-12-20 02:48:59,830 INFO L226 Difference]: Without dead ends: 60359 [2023-12-20 02:48:59,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:48:59,846 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 1817 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:59,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 3800 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:48:59,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60359 states. [2023-12-20 02:49:00,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60359 to 39867. [2023-12-20 02:49:00,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39867 states, 39866 states have (on average 1.1267496111975117) internal successors, (44919), 39866 states have internal predecessors, (44919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39867 states to 39867 states and 44919 transitions. [2023-12-20 02:49:00,406 INFO L78 Accepts]: Start accepts. Automaton has 39867 states and 44919 transitions. Word has length 108 [2023-12-20 02:49:00,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:00,406 INFO L495 AbstractCegarLoop]: Abstraction has 39867 states and 44919 transitions. [2023-12-20 02:49:00,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:00,406 INFO L276 IsEmpty]: Start isEmpty. Operand 39867 states and 44919 transitions. [2023-12-20 02:49:00,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-20 02:49:00,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:00,409 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:00,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-20 02:49:00,410 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:00,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:00,410 INFO L85 PathProgramCache]: Analyzing trace with hash -108737919, now seen corresponding path program 1 times [2023-12-20 02:49:00,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:00,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255721642] [2023-12-20 02:49:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:00,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:49:00,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:00,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255721642] [2023-12-20 02:49:00,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255721642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:00,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:00,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:49:00,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601529543] [2023-12-20 02:49:00,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:00,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:49:00,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:00,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:49:00,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:49:00,766 INFO L87 Difference]: Start difference. First operand 39867 states and 44919 transitions. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:01,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:01,478 INFO L93 Difference]: Finished difference Result 60899 states and 68792 transitions. [2023-12-20 02:49:01,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:49:01,478 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-20 02:49:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:01,717 INFO L225 Difference]: With dead ends: 60899 [2023-12-20 02:49:01,717 INFO L226 Difference]: Without dead ends: 58516 [2023-12-20 02:49:01,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:49:01,728 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 3863 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3863 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:01,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3863 Valid, 2247 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:49:01,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58516 states. [2023-12-20 02:49:02,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58516 to 39800. [2023-12-20 02:49:02,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39800 states, 39799 states have (on average 1.1268624839820096) internal successors, (44848), 39799 states have internal predecessors, (44848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39800 states to 39800 states and 44848 transitions. [2023-12-20 02:49:02,078 INFO L78 Accepts]: Start accepts. Automaton has 39800 states and 44848 transitions. Word has length 108 [2023-12-20 02:49:02,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:02,078 INFO L495 AbstractCegarLoop]: Abstraction has 39800 states and 44848 transitions. [2023-12-20 02:49:02,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 10 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:02,078 INFO L276 IsEmpty]: Start isEmpty. Operand 39800 states and 44848 transitions. [2023-12-20 02:49:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 02:49:02,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:02,081 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:02,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-20 02:49:02,082 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:02,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1141225007, now seen corresponding path program 1 times [2023-12-20 02:49:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:02,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243976862] [2023-12-20 02:49:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:02,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:02,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:02,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:02,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243976862] [2023-12-20 02:49:02,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243976862] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:02,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746387542] [2023-12-20 02:49:02,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:02,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:02,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:02,689 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:02,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-20 02:49:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:02,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:49:02,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:03,450 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:03,450 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:04,011 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:04,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746387542] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:04,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:04,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 30 [2023-12-20 02:49:04,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996136983] [2023-12-20 02:49:04,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:04,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 02:49:04,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:04,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 02:49:04,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:49:04,013 INFO L87 Difference]: Start difference. First operand 39800 states and 44848 transitions. Second operand has 30 states, 30 states have (on average 10.033333333333333) internal successors, (301), 30 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:28,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:28,072 INFO L93 Difference]: Finished difference Result 119704 states and 133938 transitions. [2023-12-20 02:49:28,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 274 states. [2023-12-20 02:49:28,073 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 10.033333333333333) internal successors, (301), 30 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-20 02:49:28,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:28,191 INFO L225 Difference]: With dead ends: 119704 [2023-12-20 02:49:28,191 INFO L226 Difference]: Without dead ends: 117037 [2023-12-20 02:49:28,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37263 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=11581, Invalid=79321, Unknown=0, NotChecked=0, Total=90902 [2023-12-20 02:49:28,219 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 10197 mSDsluCounter, 8801 mSDsCounter, 0 mSdLazyCounter, 8392 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10197 SdHoareTripleChecker+Valid, 9276 SdHoareTripleChecker+Invalid, 8691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 8392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:28,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10197 Valid, 9276 Invalid, 8691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 8392 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-20 02:49:28,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117037 states. [2023-12-20 02:49:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117037 to 39681. [2023-12-20 02:49:28,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39681 states, 39680 states have (on average 1.1267389112903226) internal successors, (44709), 39680 states have internal predecessors, (44709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:29,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39681 states to 39681 states and 44709 transitions. [2023-12-20 02:49:29,015 INFO L78 Accepts]: Start accepts. Automaton has 39681 states and 44709 transitions. Word has length 109 [2023-12-20 02:49:29,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:29,016 INFO L495 AbstractCegarLoop]: Abstraction has 39681 states and 44709 transitions. [2023-12-20 02:49:29,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 10.033333333333333) internal successors, (301), 30 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:29,016 INFO L276 IsEmpty]: Start isEmpty. Operand 39681 states and 44709 transitions. [2023-12-20 02:49:29,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 02:49:29,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:29,019 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:29,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:29,220 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,SelfDestructingSolverStorable62 [2023-12-20 02:49:29,220 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:29,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:29,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2001441502, now seen corresponding path program 1 times [2023-12-20 02:49:29,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:29,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843965516] [2023-12-20 02:49:29,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:29,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:29,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:29,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843965516] [2023-12-20 02:49:29,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843965516] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:29,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485237041] [2023-12-20 02:49:29,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:29,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:29,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:29,540 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:29,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-20 02:49:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:29,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 02:49:29,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:30,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:49:30,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485237041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:30,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:49:30,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 18 [2023-12-20 02:49:30,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559742314] [2023-12-20 02:49:30,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:30,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:49:30,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:30,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:49:30,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:49:30,370 INFO L87 Difference]: Start difference. First operand 39681 states and 44709 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:30,745 INFO L93 Difference]: Finished difference Result 43599 states and 49134 transitions. [2023-12-20 02:49:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 02:49:30,746 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-20 02:49:30,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:30,780 INFO L225 Difference]: With dead ends: 43599 [2023-12-20 02:49:30,780 INFO L226 Difference]: Without dead ends: 38951 [2023-12-20 02:49:30,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2023-12-20 02:49:30,792 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 809 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:30,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 3616 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:49:30,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38951 states. [2023-12-20 02:49:31,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38951 to 38441. [2023-12-20 02:49:31,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38441 states, 38440 states have (on average 1.1250780437044745) internal successors, (43248), 38440 states have internal predecessors, (43248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38441 states to 38441 states and 43248 transitions. [2023-12-20 02:49:31,096 INFO L78 Accepts]: Start accepts. Automaton has 38441 states and 43248 transitions. Word has length 109 [2023-12-20 02:49:31,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:31,096 INFO L495 AbstractCegarLoop]: Abstraction has 38441 states and 43248 transitions. [2023-12-20 02:49:31,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,096 INFO L276 IsEmpty]: Start isEmpty. Operand 38441 states and 43248 transitions. [2023-12-20 02:49:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:49:31,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:31,182 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:31,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:31,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:31,383 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:31,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:31,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1694605944, now seen corresponding path program 1 times [2023-12-20 02:49:31,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:31,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170456461] [2023-12-20 02:49:31,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:31,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:31,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:31,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170456461] [2023-12-20 02:49:31,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170456461] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:31,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830442863] [2023-12-20 02:49:31,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:31,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:31,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:31,809 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:31,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-20 02:49:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:32,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 02:49:32,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:32,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:49:32,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830442863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:32,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:49:32,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 23 [2023-12-20 02:49:32,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623598978] [2023-12-20 02:49:32,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:32,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:49:32,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:32,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:49:32,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:49:32,415 INFO L87 Difference]: Start difference. First operand 38441 states and 43248 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:32,891 INFO L93 Difference]: Finished difference Result 46621 states and 52517 transitions. [2023-12-20 02:49:32,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 02:49:32,891 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-20 02:49:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:32,928 INFO L225 Difference]: With dead ends: 46621 [2023-12-20 02:49:32,928 INFO L226 Difference]: Without dead ends: 40895 [2023-12-20 02:49:32,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:49:32,942 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 787 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 3723 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:32,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 3723 Invalid, 467 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:49:32,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40895 states. [2023-12-20 02:49:33,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40895 to 40139. [2023-12-20 02:49:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40139 states, 40138 states have (on average 1.124420748417958) internal successors, (45132), 40138 states have internal predecessors, (45132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:33,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40139 states to 40139 states and 45132 transitions. [2023-12-20 02:49:33,249 INFO L78 Accepts]: Start accepts. Automaton has 40139 states and 45132 transitions. Word has length 110 [2023-12-20 02:49:33,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:33,250 INFO L495 AbstractCegarLoop]: Abstraction has 40139 states and 45132 transitions. [2023-12-20 02:49:33,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:33,250 INFO L276 IsEmpty]: Start isEmpty. Operand 40139 states and 45132 transitions. [2023-12-20 02:49:33,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:49:33,253 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:33,253 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:33,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:33,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:33,454 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:33,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:33,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1955102161, now seen corresponding path program 1 times [2023-12-20 02:49:33,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:33,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961287062] [2023-12-20 02:49:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:33,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:49:33,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:33,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961287062] [2023-12-20 02:49:33,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961287062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:33,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:33,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:49:33,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133476684] [2023-12-20 02:49:33,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:33,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:49:33,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:33,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:49:33,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:49:33,725 INFO L87 Difference]: Start difference. First operand 40139 states and 45132 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:34,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:34,416 INFO L93 Difference]: Finished difference Result 49299 states and 55547 transitions. [2023-12-20 02:49:34,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:49:34,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-20 02:49:34,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:34,460 INFO L225 Difference]: With dead ends: 49299 [2023-12-20 02:49:34,461 INFO L226 Difference]: Without dead ends: 46117 [2023-12-20 02:49:34,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:49:34,474 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 957 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:34,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 1759 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:49:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46117 states. [2023-12-20 02:49:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46117 to 40139. [2023-12-20 02:49:34,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40139 states, 40138 states have (on average 1.124370920324879) internal successors, (45130), 40138 states have internal predecessors, (45130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:34,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40139 states to 40139 states and 45130 transitions. [2023-12-20 02:49:34,882 INFO L78 Accepts]: Start accepts. Automaton has 40139 states and 45130 transitions. Word has length 110 [2023-12-20 02:49:34,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:34,882 INFO L495 AbstractCegarLoop]: Abstraction has 40139 states and 45130 transitions. [2023-12-20 02:49:34,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:34,882 INFO L276 IsEmpty]: Start isEmpty. Operand 40139 states and 45130 transitions. [2023-12-20 02:49:34,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-20 02:49:34,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:34,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:34,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-12-20 02:49:34,886 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:34,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:34,887 INFO L85 PathProgramCache]: Analyzing trace with hash -124923404, now seen corresponding path program 1 times [2023-12-20 02:49:34,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:34,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642414404] [2023-12-20 02:49:34,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:34,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:35,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:35,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642414404] [2023-12-20 02:49:35,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642414404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:35,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:35,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 02:49:35,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409706461] [2023-12-20 02:49:35,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:35,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:49:35,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:35,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:49:35,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:49:35,219 INFO L87 Difference]: Start difference. First operand 40139 states and 45130 transitions. Second operand has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:37,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:37,034 INFO L93 Difference]: Finished difference Result 53693 states and 60708 transitions. [2023-12-20 02:49:37,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-12-20 02:49:37,035 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-20 02:49:37,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:37,086 INFO L225 Difference]: With dead ends: 53693 [2023-12-20 02:49:37,086 INFO L226 Difference]: Without dead ends: 52078 [2023-12-20 02:49:37,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=321, Invalid=1239, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:49:37,102 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 2180 mSDsluCounter, 3182 mSDsCounter, 0 mSdLazyCounter, 2784 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 3601 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:37,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2180 Valid, 3601 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2784 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:49:37,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52078 states. [2023-12-20 02:49:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52078 to 40057. [2023-12-20 02:49:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40057 states, 40056 states have (on average 1.1244757339724385) internal successors, (45042), 40056 states have internal predecessors, (45042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:37,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40057 states to 40057 states and 45042 transitions. [2023-12-20 02:49:37,544 INFO L78 Accepts]: Start accepts. Automaton has 40057 states and 45042 transitions. Word has length 111 [2023-12-20 02:49:37,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:37,544 INFO L495 AbstractCegarLoop]: Abstraction has 40057 states and 45042 transitions. [2023-12-20 02:49:37,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 12 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:37,544 INFO L276 IsEmpty]: Start isEmpty. Operand 40057 states and 45042 transitions. [2023-12-20 02:49:37,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-20 02:49:37,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:37,548 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:37,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-20 02:49:37,548 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:37,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash 816171029, now seen corresponding path program 1 times [2023-12-20 02:49:37,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:37,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016710528] [2023-12-20 02:49:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:37,792 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:37,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:37,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016710528] [2023-12-20 02:49:37,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016710528] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:37,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717469139] [2023-12-20 02:49:37,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:37,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:37,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:37,794 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:37,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-20 02:49:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:38,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 717 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 02:49:38,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:38,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:49:38,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717469139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:38,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:49:38,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 21 [2023-12-20 02:49:38,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919927792] [2023-12-20 02:49:38,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:38,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:49:38,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:38,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:49:38,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:49:38,583 INFO L87 Difference]: Start difference. First operand 40057 states and 45042 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:39,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:39,073 INFO L93 Difference]: Finished difference Result 48461 states and 54585 transitions. [2023-12-20 02:49:39,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 02:49:39,076 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-20 02:49:39,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:39,118 INFO L225 Difference]: With dead ends: 48461 [2023-12-20 02:49:39,118 INFO L226 Difference]: Without dead ends: 42739 [2023-12-20 02:49:39,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2023-12-20 02:49:39,132 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 917 mSDsluCounter, 4274 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 4904 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:39,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 4904 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:49:39,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42739 states. [2023-12-20 02:49:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42739 to 40286. [2023-12-20 02:49:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40286 states, 40285 states have (on average 1.123246866079186) internal successors, (45250), 40285 states have internal predecessors, (45250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:39,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40286 states to 40286 states and 45250 transitions. [2023-12-20 02:49:39,511 INFO L78 Accepts]: Start accepts. Automaton has 40286 states and 45250 transitions. Word has length 111 [2023-12-20 02:49:39,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:39,511 INFO L495 AbstractCegarLoop]: Abstraction has 40286 states and 45250 transitions. [2023-12-20 02:49:39,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:39,512 INFO L276 IsEmpty]: Start isEmpty. Operand 40286 states and 45250 transitions. [2023-12-20 02:49:39,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-20 02:49:39,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:39,515 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:39,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:39,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-12-20 02:49:39,716 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:39,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:39,716 INFO L85 PathProgramCache]: Analyzing trace with hash 412605956, now seen corresponding path program 1 times [2023-12-20 02:49:39,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:39,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271295325] [2023-12-20 02:49:39,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:39,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:40,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:40,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271295325] [2023-12-20 02:49:40,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271295325] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:40,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012409736] [2023-12-20 02:49:40,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:40,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:40,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:40,136 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:40,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-20 02:49:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:40,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-20 02:49:40,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:40,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:41,312 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:41,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012409736] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:41,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:41,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 10] total 31 [2023-12-20 02:49:41,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806432947] [2023-12-20 02:49:41,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:41,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-20 02:49:41,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:41,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-20 02:49:41,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2023-12-20 02:49:41,314 INFO L87 Difference]: Start difference. First operand 40286 states and 45250 transitions. Second operand has 31 states, 31 states have (on average 9.64516129032258) internal successors, (299), 31 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:42,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:42,625 INFO L93 Difference]: Finished difference Result 60862 states and 68526 transitions. [2023-12-20 02:49:42,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-20 02:49:42,626 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.64516129032258) internal successors, (299), 31 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-20 02:49:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:42,683 INFO L225 Difference]: With dead ends: 60862 [2023-12-20 02:49:42,683 INFO L226 Difference]: Without dead ends: 58529 [2023-12-20 02:49:42,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=323, Invalid=1483, Unknown=0, NotChecked=0, Total=1806 [2023-12-20 02:49:42,697 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 2854 mSDsluCounter, 8147 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2854 SdHoareTripleChecker+Valid, 8823 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:42,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2854 Valid, 8823 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:49:42,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58529 states. [2023-12-20 02:49:43,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58529 to 40263. [2023-12-20 02:49:43,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40263 states, 40262 states have (on average 1.1232179226069245) internal successors, (45223), 40262 states have internal predecessors, (45223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:43,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40263 states to 40263 states and 45223 transitions. [2023-12-20 02:49:43,071 INFO L78 Accepts]: Start accepts. Automaton has 40263 states and 45223 transitions. Word has length 111 [2023-12-20 02:49:43,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:43,072 INFO L495 AbstractCegarLoop]: Abstraction has 40263 states and 45223 transitions. [2023-12-20 02:49:43,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.64516129032258) internal successors, (299), 31 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:43,072 INFO L276 IsEmpty]: Start isEmpty. Operand 40263 states and 45223 transitions. [2023-12-20 02:49:43,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-20 02:49:43,075 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:43,075 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:43,083 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 02:49:43,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:43,276 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:43,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:43,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1296410831, now seen corresponding path program 1 times [2023-12-20 02:49:43,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:43,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130801164] [2023-12-20 02:49:43,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:43,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:44,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:44,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130801164] [2023-12-20 02:49:44,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130801164] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:44,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724230373] [2023-12-20 02:49:44,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:44,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:44,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:44,013 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:44,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-20 02:49:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:44,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:49:44,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:44,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:49:44,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724230373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:44,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:49:44,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17] total 27 [2023-12-20 02:49:44,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940494053] [2023-12-20 02:49:44,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:44,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:49:44,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:44,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:49:44,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2023-12-20 02:49:44,821 INFO L87 Difference]: Start difference. First operand 40263 states and 45223 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:45,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:45,276 INFO L93 Difference]: Finished difference Result 41883 states and 47057 transitions. [2023-12-20 02:49:45,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 02:49:45,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-20 02:49:45,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:45,310 INFO L225 Difference]: With dead ends: 41883 [2023-12-20 02:49:45,310 INFO L226 Difference]: Without dead ends: 39567 [2023-12-20 02:49:45,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2023-12-20 02:49:45,323 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 819 mSDsluCounter, 3875 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:45,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 4434 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:49:45,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39567 states. [2023-12-20 02:49:45,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39567 to 39057. [2023-12-20 02:49:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39057 states, 39056 states have (on average 1.1222091356001638) internal successors, (43829), 39056 states have internal predecessors, (43829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39057 states to 39057 states and 43829 transitions. [2023-12-20 02:49:45,682 INFO L78 Accepts]: Start accepts. Automaton has 39057 states and 43829 transitions. Word has length 111 [2023-12-20 02:49:45,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:45,682 INFO L495 AbstractCegarLoop]: Abstraction has 39057 states and 43829 transitions. [2023-12-20 02:49:45,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:45,682 INFO L276 IsEmpty]: Start isEmpty. Operand 39057 states and 43829 transitions. [2023-12-20 02:49:45,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-20 02:49:45,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:45,686 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:45,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:45,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:45,886 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:49:45,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash 510536498, now seen corresponding path program 1 times [2023-12-20 02:49:45,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:45,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947820707] [2023-12-20 02:49:45,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:45,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:46,364 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:46,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:46,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947820707] [2023-12-20 02:49:46,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947820707] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:46,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412560180] [2023-12-20 02:49:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:46,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:46,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:46,366 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:46,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-20 02:49:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:46,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-20 02:49:46,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:47,218 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:47,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:47,662 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:47,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412560180] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:47,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:47,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 10] total 34 [2023-12-20 02:49:47,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362409025] [2023-12-20 02:49:47,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:47,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-20 02:49:47,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:47,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-20 02:49:47,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1031, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 02:49:47,664 INFO L87 Difference]: Start difference. First operand 39057 states and 43829 transitions. Second operand has 34 states, 34 states have (on average 9.147058823529411) internal successors, (311), 34 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:38,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:38,368 INFO L93 Difference]: Finished difference Result 158871 states and 175966 transitions. [2023-12-20 02:50:38,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 743 states. [2023-12-20 02:50:38,368 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 9.147058823529411) internal successors, (311), 34 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2023-12-20 02:50:38,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:38,531 INFO L225 Difference]: With dead ends: 158871 [2023-12-20 02:50:38,531 INFO L226 Difference]: Without dead ends: 153445 [2023-12-20 02:50:38,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 981 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 773 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283470 ImplicationChecksByTransitivity, 41.4s TimeCoverageRelationStatistics Valid=43925, Invalid=555925, Unknown=0, NotChecked=0, Total=599850 [2023-12-20 02:50:38,592 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 20095 mSDsluCounter, 16533 mSDsCounter, 0 mSdLazyCounter, 15194 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20095 SdHoareTripleChecker+Valid, 17398 SdHoareTripleChecker+Invalid, 15816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 15194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:38,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20095 Valid, 17398 Invalid, 15816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [622 Valid, 15194 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-20 02:50:38,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153445 states. [2023-12-20 02:50:39,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153445 to 38858. [2023-12-20 02:50:39,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38858 states, 38857 states have (on average 1.1211107393777182) internal successors, (43563), 38857 states have internal predecessors, (43563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:39,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38858 states to 38858 states and 43563 transitions. [2023-12-20 02:50:39,395 INFO L78 Accepts]: Start accepts. Automaton has 38858 states and 43563 transitions. Word has length 112 [2023-12-20 02:50:39,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:39,395 INFO L495 AbstractCegarLoop]: Abstraction has 38858 states and 43563 transitions. [2023-12-20 02:50:39,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.147058823529411) internal successors, (311), 34 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:39,396 INFO L276 IsEmpty]: Start isEmpty. Operand 38858 states and 43563 transitions. [2023-12-20 02:50:39,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-20 02:50:39,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:39,400 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:50:39,406 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 02:50:39,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:50:39,600 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:50:39,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:39,601 INFO L85 PathProgramCache]: Analyzing trace with hash -282057721, now seen corresponding path program 1 times [2023-12-20 02:50:39,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:39,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239078350] [2023-12-20 02:50:39,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:39,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:50:40,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:40,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239078350] [2023-12-20 02:50:40,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239078350] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:50:40,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711490980] [2023-12-20 02:50:40,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:40,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:50:40,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:50:40,020 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:50:40,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-20 02:50:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:40,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-20 02:50:40,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:50:41,972 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:50:41,972 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:50:41,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711490980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:50:41,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:50:41,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [13] total 30 [2023-12-20 02:50:41,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805318171] [2023-12-20 02:50:41,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:50:41,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 02:50:41,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:50:41,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 02:50:41,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=838, Unknown=0, NotChecked=0, Total=930 [2023-12-20 02:50:41,973 INFO L87 Difference]: Start difference. First operand 38858 states and 43563 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:43,944 INFO L93 Difference]: Finished difference Result 58735 states and 66057 transitions. [2023-12-20 02:50:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 02:50:43,945 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-20 02:50:43,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:44,006 INFO L225 Difference]: With dead ends: 58735 [2023-12-20 02:50:44,007 INFO L226 Difference]: Without dead ends: 57602 [2023-12-20 02:50:44,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=168, Invalid=1392, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:50:44,025 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 1357 mSDsluCounter, 6172 mSDsCounter, 0 mSdLazyCounter, 2588 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 6799 SdHoareTripleChecker+Invalid, 2609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:44,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 6799 Invalid, 2609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2588 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:50:44,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57602 states. [2023-12-20 02:50:44,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57602 to 38785. [2023-12-20 02:50:44,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38785 states, 38784 states have (on average 1.1209777227722773) internal successors, (43476), 38784 states have internal predecessors, (43476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:44,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38785 states to 38785 states and 43476 transitions. [2023-12-20 02:50:44,476 INFO L78 Accepts]: Start accepts. Automaton has 38785 states and 43476 transitions. Word has length 113 [2023-12-20 02:50:44,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:44,476 INFO L495 AbstractCegarLoop]: Abstraction has 38785 states and 43476 transitions. [2023-12-20 02:50:44,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:44,476 INFO L276 IsEmpty]: Start isEmpty. Operand 38785 states and 43476 transitions. [2023-12-20 02:50:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-20 02:50:44,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:44,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:50:44,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-12-20 02:50:44,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:50:44,681 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:50:44,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:44,681 INFO L85 PathProgramCache]: Analyzing trace with hash 433586981, now seen corresponding path program 1 times [2023-12-20 02:50:44,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:44,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038748568] [2023-12-20 02:50:44,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:44,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:50:45,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:45,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038748568] [2023-12-20 02:50:45,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038748568] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:50:45,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433951661] [2023-12-20 02:50:45,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:45,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:50:45,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:50:45,050 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:50:45,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process