/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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:42:37,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:42:37,699 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 02:42:37,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:42:37,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:42:37,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:42:37,733 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:42:37,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:42:37,734 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:42:37,737 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:42:37,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:42:37,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:42:37,739 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:42:37,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:42:37,740 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:42:37,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:42:37,741 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:42:37,741 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:42:37,741 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:42:37,741 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:42:37,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:42:37,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:42:37,742 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:42:37,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:42:37,742 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:42:37,743 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:42:37,743 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:42:37,743 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:42:37,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:42:37,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:42:37,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:42:37,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:42:37,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:42:37,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:42:37,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:42:37,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:42:37,746 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:42:37,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:42:37,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:42:37,746 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:42:37,746 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:42:37,747 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:42:37,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:42:37,747 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:42:37,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:42:37,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:42:37,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:42:37,996 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:42:37,996 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:42:37,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 02:42:39,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:42:39,415 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:42:39,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 02:42:39,441 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823b48c29/fb01cdcabb9c4006a16a5f5f20feeb02/FLAG244de10a8 [2023-12-20 02:42:39,456 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/823b48c29/fb01cdcabb9c4006a16a5f5f20feeb02 [2023-12-20 02:42:39,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:42:39,460 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:42:39,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:42:39,463 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:42:39,467 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:42:39,467 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:42:39" (1/1) ... [2023-12-20 02:42:39,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e190f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:39, skipping insertion in model container [2023-12-20 02:42:39,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:42:39" (1/1) ... [2023-12-20 02:42:39,556 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:42:39,870 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7172,7185] [2023-12-20 02:42:39,916 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[10914,10927] [2023-12-20 02:42:39,959 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[17944,17957] [2023-12-20 02:42:39,981 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24017,24030] [2023-12-20 02:42:40,036 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42645,42658] [2023-12-20 02:42:40,086 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[64626,64639] [2023-12-20 02:42:40,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:42:40,269 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:42:40,298 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[7172,7185] [2023-12-20 02:42:40,310 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[10914,10927] [2023-12-20 02:42:40,330 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[17944,17957] [2023-12-20 02:42:40,352 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[24017,24030] [2023-12-20 02:42:40,376 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[42645,42658] [2023-12-20 02:42:40,423 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.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[64626,64639] [2023-12-20 02:42:40,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:42:40,520 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:42:40,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40 WrapperNode [2023-12-20 02:42:40,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:42:40,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:42:40,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:42:40,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:42:40,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,693 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5673 [2023-12-20 02:42:40,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:42:40,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:42:40,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:42:40,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:42:40,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,716 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,757 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 02:42:40,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:42:40,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:42:40,887 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:42:40,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:42:40,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (1/1) ... [2023-12-20 02:42:40,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:42:40,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:42:40,933 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 02:42:40,957 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 02:42:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:42:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:42:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:42:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:42:41,200 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:42:41,202 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:42:43,292 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:42:43,352 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:42:43,353 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:42:43,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:42:43 BoogieIcfgContainer [2023-12-20 02:42:43,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:42:43,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:42:43,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:42:43,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:42:43,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:42:39" (1/3) ... [2023-12-20 02:42:43,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47618d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:42:43, skipping insertion in model container [2023-12-20 02:42:43,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:42:40" (2/3) ... [2023-12-20 02:42:43,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47618d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:42:43, skipping insertion in model container [2023-12-20 02:42:43,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:42:43" (3/3) ... [2023-12-20 02:42:43,363 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2023-12-20 02:42:43,378 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:42:43,379 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-12-20 02:42:43,447 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:42:43,452 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;@7ce1c385, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:42:43,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-12-20 02:42:43,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 1119 states, 1112 states have (on average 1.8300359712230216) internal successors, (2035), 1118 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:43,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 02:42:43,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:43,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:42:43,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:43,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:43,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2020000843, now seen corresponding path program 1 times [2023-12-20 02:42:43,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:43,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211707661] [2023-12-20 02:42:43,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:43,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:43,921 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 02:42:43,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:43,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211707661] [2023-12-20 02:42:43,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211707661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:43,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:43,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:42:43,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929218175] [2023-12-20 02:42:43,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:43,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:42:43,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:43,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:42:43,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:42:43,955 INFO L87 Difference]: Start difference. First operand has 1119 states, 1112 states have (on average 1.8300359712230216) internal successors, (2035), 1118 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:45,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:45,261 INFO L93 Difference]: Finished difference Result 2056 states and 3641 transitions. [2023-12-20 02:42:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:42:45,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-20 02:42:45,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:45,287 INFO L225 Difference]: With dead ends: 2056 [2023-12-20 02:42:45,287 INFO L226 Difference]: Without dead ends: 1338 [2023-12-20 02:42:45,292 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 02:42:45,297 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 6442 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6442 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:45,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6442 Valid, 1407 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 02:42:45,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2023-12-20 02:42:45,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1326. [2023-12-20 02:42:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1320 states have (on average 1.3363636363636364) internal successors, (1764), 1325 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:45,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1764 transitions. [2023-12-20 02:42:45,401 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1764 transitions. Word has length 50 [2023-12-20 02:42:45,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:45,402 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 1764 transitions. [2023-12-20 02:42:45,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:45,402 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1764 transitions. [2023-12-20 02:42:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 02:42:45,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:45,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:42:45,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:42:45,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:45,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:45,406 INFO L85 PathProgramCache]: Analyzing trace with hash -371948326, now seen corresponding path program 1 times [2023-12-20 02:42:45,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:45,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701480248] [2023-12-20 02:42:45,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:45,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:45,598 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 02:42:45,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:45,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701480248] [2023-12-20 02:42:45,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701480248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:45,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:45,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:42:45,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358314774] [2023-12-20 02:42:45,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:42:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:45,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:42:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:42:45,606 INFO L87 Difference]: Start difference. First operand 1326 states and 1764 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:46,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:46,418 INFO L93 Difference]: Finished difference Result 2509 states and 3425 transitions. [2023-12-20 02:42:46,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:42:46,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-20 02:42:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:46,424 INFO L225 Difference]: With dead ends: 2509 [2023-12-20 02:42:46,424 INFO L226 Difference]: Without dead ends: 1696 [2023-12-20 02:42:46,426 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 02:42:46,427 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 4284 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:46,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4284 Valid, 818 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:42:46,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2023-12-20 02:42:46,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1686. [2023-12-20 02:42:46,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1680 states have (on average 1.3654761904761905) internal successors, (2294), 1685 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:46,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2294 transitions. [2023-12-20 02:42:46,471 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2294 transitions. Word has length 50 [2023-12-20 02:42:46,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:46,471 INFO L495 AbstractCegarLoop]: Abstraction has 1686 states and 2294 transitions. [2023-12-20 02:42:46,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:46,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2294 transitions. [2023-12-20 02:42:46,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 02:42:46,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:46,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:42:46,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:42:46,474 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:46,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:46,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1656171021, now seen corresponding path program 1 times [2023-12-20 02:42:46,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:46,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682646586] [2023-12-20 02:42:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:46,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:46,585 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 02:42:46,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:46,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682646586] [2023-12-20 02:42:46,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682646586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:46,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:46,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:42:46,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259479427] [2023-12-20 02:42:46,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:46,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:42:46,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:46,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:42:46,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:42:46,592 INFO L87 Difference]: Start difference. First operand 1686 states and 2294 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:47,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:47,393 INFO L93 Difference]: Finished difference Result 3361 states and 4641 transitions. [2023-12-20 02:42:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:42:47,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-12-20 02:42:47,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:47,402 INFO L225 Difference]: With dead ends: 3361 [2023-12-20 02:42:47,402 INFO L226 Difference]: Without dead ends: 2475 [2023-12-20 02:42:47,404 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 02:42:47,405 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 3830 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3830 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:47,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3830 Valid, 774 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:42:47,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2023-12-20 02:42:47,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2469. [2023-12-20 02:42:47,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2469 states, 2463 states have (on average 1.3645960211124644) internal successors, (3361), 2468 states have internal predecessors, (3361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 3361 transitions. [2023-12-20 02:42:47,458 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 3361 transitions. Word has length 50 [2023-12-20 02:42:47,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:47,458 INFO L495 AbstractCegarLoop]: Abstraction has 2469 states and 3361 transitions. [2023-12-20 02:42:47,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 3361 transitions. [2023-12-20 02:42:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 02:42:47,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:47,462 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 02:42:47,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:42:47,462 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:47,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:47,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1156025879, now seen corresponding path program 1 times [2023-12-20 02:42:47,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:47,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616631807] [2023-12-20 02:42:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:47,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:47,764 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 02:42:47,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:47,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616631807] [2023-12-20 02:42:47,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616631807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:47,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:47,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:42:47,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722806738] [2023-12-20 02:42:47,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:47,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:42:47,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:47,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:42:47,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:42:47,766 INFO L87 Difference]: Start difference. First operand 2469 states and 3361 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:49,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:49,582 INFO L93 Difference]: Finished difference Result 4303 states and 6014 transitions. [2023-12-20 02:42:49,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:42:49,583 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-20 02:42:49,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:49,597 INFO L225 Difference]: With dead ends: 4303 [2023-12-20 02:42:49,597 INFO L226 Difference]: Without dead ends: 4298 [2023-12-20 02:42:49,598 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 02:42:49,599 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2397 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 3043 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 3067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 3043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:49,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 3176 Invalid, 3067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 3043 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 02:42:49,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2023-12-20 02:42:49,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 2469. [2023-12-20 02:42:49,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2469 states, 2463 states have (on average 1.364190012180268) internal successors, (3360), 2468 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:49,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 3360 transitions. [2023-12-20 02:42:49,672 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 3360 transitions. Word has length 51 [2023-12-20 02:42:49,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:49,672 INFO L495 AbstractCegarLoop]: Abstraction has 2469 states and 3360 transitions. [2023-12-20 02:42:49,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:49,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 3360 transitions. [2023-12-20 02:42:49,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 02:42:49,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:49,675 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 02:42:49,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:42:49,676 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 02:42:49,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:49,676 INFO L85 PathProgramCache]: Analyzing trace with hash 544097692, now seen corresponding path program 1 times [2023-12-20 02:42:49,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:49,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358011673] [2023-12-20 02:42:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:49,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:49,994 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 02:42:49,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:49,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358011673] [2023-12-20 02:42:49,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358011673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:49,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:49,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:42:49,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020076638] [2023-12-20 02:42:49,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:49,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:42:49,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:49,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:42:49,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:42:49,997 INFO L87 Difference]: Start difference. First operand 2469 states and 3360 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:51,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:51,816 INFO L93 Difference]: Finished difference Result 5207 states and 7402 transitions. [2023-12-20 02:42:51,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:42:51,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-12-20 02:42:51,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:51,834 INFO L225 Difference]: With dead ends: 5207 [2023-12-20 02:42:51,834 INFO L226 Difference]: Without dead ends: 4700 [2023-12-20 02:42:51,837 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 02:42:51,837 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 3424 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 3171 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3424 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:51,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3424 Valid, 3348 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 3171 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 02:42:51,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2023-12-20 02:42:51,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 2469. [2023-12-20 02:42:51,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2469 states, 2463 states have (on average 1.3637840032480715) internal successors, (3359), 2468 states have internal predecessors, (3359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:51,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 3359 transitions. [2023-12-20 02:42:51,909 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 3359 transitions. Word has length 51 [2023-12-20 02:42:51,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:51,910 INFO L495 AbstractCegarLoop]: Abstraction has 2469 states and 3359 transitions. [2023-12-20 02:42:51,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:51,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 3359 transitions. [2023-12-20 02:42:51,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 02:42:51,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:51,913 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 02:42:51,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:42:51,914 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:51,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:51,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1134807775, now seen corresponding path program 1 times [2023-12-20 02:42:51,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:51,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982735794] [2023-12-20 02:42:51,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:51,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:52,155 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 02:42:52,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:52,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982735794] [2023-12-20 02:42:52,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982735794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:52,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:52,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:42:52,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010937777] [2023-12-20 02:42:52,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:52,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:42:52,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:52,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:42:52,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:42:52,158 INFO L87 Difference]: Start difference. First operand 2469 states and 3359 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 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 02:42:53,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:53,180 INFO L93 Difference]: Finished difference Result 4397 states and 6209 transitions. [2023-12-20 02:42:53,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:42:53,182 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 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 02:42:53,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:53,196 INFO L225 Difference]: With dead ends: 4397 [2023-12-20 02:42:53,197 INFO L226 Difference]: Without dead ends: 3750 [2023-12-20 02:42:53,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:42:53,200 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 4214 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4214 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:53,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4214 Valid, 1794 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:42:53,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2023-12-20 02:42:53,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 2469. [2023-12-20 02:42:53,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2469 states, 2463 states have (on average 1.363377994315875) internal successors, (3358), 2468 states have internal predecessors, (3358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:53,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2469 states to 2469 states and 3358 transitions. [2023-12-20 02:42:53,253 INFO L78 Accepts]: Start accepts. Automaton has 2469 states and 3358 transitions. Word has length 51 [2023-12-20 02:42:53,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:53,254 INFO L495 AbstractCegarLoop]: Abstraction has 2469 states and 3358 transitions. [2023-12-20 02:42:53,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 6 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 02:42:53,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2469 states and 3358 transitions. [2023-12-20 02:42:53,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:42:53,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:53,257 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 02:42:53,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:42:53,257 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:53,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:53,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1876349593, now seen corresponding path program 1 times [2023-12-20 02:42:53,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:53,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208798375] [2023-12-20 02:42:53,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:53,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:53,311 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 02:42:53,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:53,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208798375] [2023-12-20 02:42:53,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208798375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:53,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:53,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:42:53,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208287548] [2023-12-20 02:42:53,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:53,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:42:53,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:53,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:42:53,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:42:53,315 INFO L87 Difference]: Start difference. First operand 2469 states and 3358 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 02:42:53,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:53,383 INFO L93 Difference]: Finished difference Result 3557 states and 4983 transitions. [2023-12-20 02:42:53,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:42:53,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 02:42:53,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:53,390 INFO L225 Difference]: With dead ends: 3557 [2023-12-20 02:42:53,390 INFO L226 Difference]: Without dead ends: 2240 [2023-12-20 02:42:53,392 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 02:42:53,392 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 622 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:53,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1289 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:42:53,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2240 states. [2023-12-20 02:42:53,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2240 to 2238. [2023-12-20 02:42:53,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 2232 states have (on average 1.353942652329749) internal successors, (3022), 2237 states have internal predecessors, (3022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3022 transitions. [2023-12-20 02:42:53,453 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3022 transitions. Word has length 52 [2023-12-20 02:42:53,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:53,454 INFO L495 AbstractCegarLoop]: Abstraction has 2238 states and 3022 transitions. [2023-12-20 02:42:53,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 02:42:53,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3022 transitions. [2023-12-20 02:42:53,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:42:53,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:53,456 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 02:42:53,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:42:53,456 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 02:42:53,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:53,457 INFO L85 PathProgramCache]: Analyzing trace with hash -128279793, now seen corresponding path program 1 times [2023-12-20 02:42:53,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:53,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656391864] [2023-12-20 02:42:53,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:53,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:53,526 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 02:42:53,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:53,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656391864] [2023-12-20 02:42:53,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656391864] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:53,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:53,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:42:53,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109179856] [2023-12-20 02:42:53,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:53,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:42:53,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:53,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:42:53,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:42:53,528 INFO L87 Difference]: Start difference. First operand 2238 states and 3022 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 02:42:53,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:53,579 INFO L93 Difference]: Finished difference Result 3803 states and 5440 transitions. [2023-12-20 02:42:53,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:42:53,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 02:42:53,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:53,588 INFO L225 Difference]: With dead ends: 3803 [2023-12-20 02:42:53,588 INFO L226 Difference]: Without dead ends: 2762 [2023-12-20 02:42:53,590 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 02:42:53,591 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 457 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:53,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 1384 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:42:53,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2023-12-20 02:42:53,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2760. [2023-12-20 02:42:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2760 states, 2754 states have (on average 1.3979665940450254) internal successors, (3850), 2759 states have internal predecessors, (3850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3850 transitions. [2023-12-20 02:42:53,630 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3850 transitions. Word has length 52 [2023-12-20 02:42:53,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:53,631 INFO L495 AbstractCegarLoop]: Abstraction has 2760 states and 3850 transitions. [2023-12-20 02:42:53,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 02:42:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3850 transitions. [2023-12-20 02:42:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:42:53,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:53,634 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 02:42:53,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:42:53,634 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:53,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:53,634 INFO L85 PathProgramCache]: Analyzing trace with hash -678266137, now seen corresponding path program 1 times [2023-12-20 02:42:53,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:53,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085911826] [2023-12-20 02:42:53,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:53,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:53,677 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 02:42:53,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:53,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085911826] [2023-12-20 02:42:53,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085911826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:53,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:53,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:42:53,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084839639] [2023-12-20 02:42:53,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:53,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:42:53,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:53,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:42:53,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:42:53,680 INFO L87 Difference]: Start difference. First operand 2760 states and 3850 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 02:42:53,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:53,732 INFO L93 Difference]: Finished difference Result 5590 states and 8153 transitions. [2023-12-20 02:42:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:42:53,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 02:42:53,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:53,743 INFO L225 Difference]: With dead ends: 5590 [2023-12-20 02:42:53,744 INFO L226 Difference]: Without dead ends: 3826 [2023-12-20 02:42:53,746 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 02:42:53,747 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 434 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:53,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 1398 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:42:53,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3826 states. [2023-12-20 02:42:53,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3826 to 3824. [2023-12-20 02:42:53,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3824 states, 3818 states have (on average 1.4227344159245678) internal successors, (5432), 3823 states have internal predecessors, (5432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:53,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 5432 transitions. [2023-12-20 02:42:53,795 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 5432 transitions. Word has length 52 [2023-12-20 02:42:53,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:53,796 INFO L495 AbstractCegarLoop]: Abstraction has 3824 states and 5432 transitions. [2023-12-20 02:42:53,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 02:42:53,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 5432 transitions. [2023-12-20 02:42:53,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 02:42:53,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:53,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:42:53,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 02:42:53,798 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:53,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:53,803 INFO L85 PathProgramCache]: Analyzing trace with hash 396589116, now seen corresponding path program 1 times [2023-12-20 02:42:53,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:53,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790858494] [2023-12-20 02:42:53,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:53,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:53,851 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 02:42:53,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:53,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790858494] [2023-12-20 02:42:53,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790858494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:53,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:53,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:42:53,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050338621] [2023-12-20 02:42:53,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:53,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:42:53,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:53,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:42:53,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:42:53,853 INFO L87 Difference]: Start difference. First operand 3824 states and 5432 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:53,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:53,940 INFO L93 Difference]: Finished difference Result 7513 states and 10893 transitions. [2023-12-20 02:42:53,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:42:53,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-20 02:42:53,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:53,954 INFO L225 Difference]: With dead ends: 7513 [2023-12-20 02:42:53,955 INFO L226 Difference]: Without dead ends: 4237 [2023-12-20 02:42:53,959 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 02:42:53,959 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 645 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:53,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 972 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:42:53,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2023-12-20 02:42:54,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 3412. [2023-12-20 02:42:54,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3407 states have (on average 1.436160845318462) internal successors, (4893), 3411 states have internal predecessors, (4893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:54,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 4893 transitions. [2023-12-20 02:42:54,022 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 4893 transitions. Word has length 53 [2023-12-20 02:42:54,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:54,022 INFO L495 AbstractCegarLoop]: Abstraction has 3412 states and 4893 transitions. [2023-12-20 02:42:54,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:54,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 4893 transitions. [2023-12-20 02:42:54,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 02:42:54,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:54,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:42:54,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:42:54,024 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 02:42:54,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:54,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1097574629, now seen corresponding path program 1 times [2023-12-20 02:42:54,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:54,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557635195] [2023-12-20 02:42:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:54,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:42:54,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:54,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557635195] [2023-12-20 02:42:54,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557635195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:54,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:54,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:42:54,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908031036] [2023-12-20 02:42:54,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:54,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:42:54,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:54,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:42:54,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:42:54,069 INFO L87 Difference]: Start difference. First operand 3412 states and 4893 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:54,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:54,138 INFO L93 Difference]: Finished difference Result 6967 states and 10155 transitions. [2023-12-20 02:42:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:42:54,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-12-20 02:42:54,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:54,148 INFO L225 Difference]: With dead ends: 6967 [2023-12-20 02:42:54,149 INFO L226 Difference]: Without dead ends: 3920 [2023-12-20 02:42:54,152 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 02:42:54,153 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 523 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:54,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 735 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:42:54,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2023-12-20 02:42:54,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3156. [2023-12-20 02:42:54,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3156 states, 3152 states have (on average 1.4489213197969544) internal successors, (4567), 3155 states have internal predecessors, (4567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:54,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 4567 transitions. [2023-12-20 02:42:54,228 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 4567 transitions. Word has length 53 [2023-12-20 02:42:54,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:54,229 INFO L495 AbstractCegarLoop]: Abstraction has 3156 states and 4567 transitions. [2023-12-20 02:42:54,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 4567 transitions. [2023-12-20 02:42:54,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:42:54,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:54,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:42:54,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:42:54,231 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:54,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:54,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1858325642, now seen corresponding path program 1 times [2023-12-20 02:42:54,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:54,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616658585] [2023-12-20 02:42:54,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:54,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:54,765 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 02:42:54,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:54,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616658585] [2023-12-20 02:42:54,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616658585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:54,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:54,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:42:54,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711886304] [2023-12-20 02:42:54,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:54,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:42:54,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:54,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:42:54,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:42:54,768 INFO L87 Difference]: Start difference. First operand 3156 states and 4567 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 11 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 02:42:55,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:55,836 INFO L93 Difference]: Finished difference Result 5263 states and 7579 transitions. [2023-12-20 02:42:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:42:55,837 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 11 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 02:42:55,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:55,846 INFO L225 Difference]: With dead ends: 5263 [2023-12-20 02:42:55,846 INFO L226 Difference]: Without dead ends: 5202 [2023-12-20 02:42:55,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:42:55,849 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 3646 mSDsluCounter, 3450 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 4253 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:55,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 4253 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:42:55,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5202 states. [2023-12-20 02:42:55,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5202 to 3144. [2023-12-20 02:42:55,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3141 states have (on average 1.4495383635784782) internal successors, (4553), 3143 states have internal predecessors, (4553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 4553 transitions. [2023-12-20 02:42:55,910 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 4553 transitions. Word has length 54 [2023-12-20 02:42:55,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:55,910 INFO L495 AbstractCegarLoop]: Abstraction has 3144 states and 4553 transitions. [2023-12-20 02:42:55,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 11 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 02:42:55,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 4553 transitions. [2023-12-20 02:42:55,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:42:55,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:55,918 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 02:42:55,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:42:55,918 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:55,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:55,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1760291884, now seen corresponding path program 1 times [2023-12-20 02:42:55,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:55,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674684869] [2023-12-20 02:42:55,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:55,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:56,302 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 02:42:56,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:56,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674684869] [2023-12-20 02:42:56,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674684869] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:56,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:56,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:42:56,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327390919] [2023-12-20 02:42:56,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:56,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:42:56,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:56,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:42:56,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:42:56,306 INFO L87 Difference]: Start difference. First operand 3144 states and 4553 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:57,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:57,232 INFO L93 Difference]: Finished difference Result 6872 states and 9976 transitions. [2023-12-20 02:42:57,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 02:42:57,233 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2023-12-20 02:42:57,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:57,243 INFO L225 Difference]: With dead ends: 6872 [2023-12-20 02:42:57,243 INFO L226 Difference]: Without dead ends: 6788 [2023-12-20 02:42:57,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=461, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:42:57,246 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 3335 mSDsluCounter, 2723 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:57,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 3341 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:42:57,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6788 states. [2023-12-20 02:42:57,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6788 to 3109. [2023-12-20 02:42:57,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3107 states have (on average 1.4509172835532669) internal successors, (4508), 3108 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:57,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 4508 transitions. [2023-12-20 02:42:57,302 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 4508 transitions. Word has length 54 [2023-12-20 02:42:57,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:57,303 INFO L495 AbstractCegarLoop]: Abstraction has 3109 states and 4508 transitions. [2023-12-20 02:42:57,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:57,303 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 4508 transitions. [2023-12-20 02:42:57,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:42:57,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:57,304 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 02:42:57,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:42:57,304 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 02:42:57,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:57,305 INFO L85 PathProgramCache]: Analyzing trace with hash 915713314, now seen corresponding path program 1 times [2023-12-20 02:42:57,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:57,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806974606] [2023-12-20 02:42:57,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:57,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:57,721 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 02:42:57,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:57,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806974606] [2023-12-20 02:42:57,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806974606] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:57,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:57,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:42:57,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576584136] [2023-12-20 02:42:57,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:57,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:42:57,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:57,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:42:57,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:42:57,723 INFO L87 Difference]: Start difference. First operand 3109 states and 4508 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 11 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 02:42:58,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:58,843 INFO L93 Difference]: Finished difference Result 5407 states and 7777 transitions. [2023-12-20 02:42:58,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:42:58,843 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 11 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 02:42:58,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:58,851 INFO L225 Difference]: With dead ends: 5407 [2023-12-20 02:42:58,851 INFO L226 Difference]: Without dead ends: 5330 [2023-12-20 02:42:58,852 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 02:42:58,853 INFO L413 NwaCegarLoop]: 920 mSDtfsCounter, 2816 mSDsluCounter, 3512 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:58,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 4432 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:42:58,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5330 states. [2023-12-20 02:42:58,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5330 to 3081. [2023-12-20 02:42:58,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3081 states, 3080 states have (on average 1.4516233766233766) internal successors, (4471), 3080 states have internal predecessors, (4471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:58,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3081 states to 3081 states and 4471 transitions. [2023-12-20 02:42:58,900 INFO L78 Accepts]: Start accepts. Automaton has 3081 states and 4471 transitions. Word has length 54 [2023-12-20 02:42:58,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:58,900 INFO L495 AbstractCegarLoop]: Abstraction has 3081 states and 4471 transitions. [2023-12-20 02:42:58,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 11 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 02:42:58,900 INFO L276 IsEmpty]: Start isEmpty. Operand 3081 states and 4471 transitions. [2023-12-20 02:42:58,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-20 02:42:58,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:58,902 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] [2023-12-20 02:42:58,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:42:58,903 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:58,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:58,903 INFO L85 PathProgramCache]: Analyzing trace with hash -169372041, now seen corresponding path program 1 times [2023-12-20 02:42:58,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:58,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135254894] [2023-12-20 02:42:58,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:58,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:58,972 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 02:42:58,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:58,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135254894] [2023-12-20 02:42:58,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135254894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:58,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:58,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:42:58,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812389751] [2023-12-20 02:42:58,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:58,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:42:58,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:58,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:42:58,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:42:58,975 INFO L87 Difference]: Start difference. First operand 3081 states and 4471 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:59,056 INFO L93 Difference]: Finished difference Result 9844 states and 14574 transitions. [2023-12-20 02:42:59,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:42:59,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-12-20 02:42:59,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:59,065 INFO L225 Difference]: With dead ends: 9844 [2023-12-20 02:42:59,066 INFO L226 Difference]: Without dead ends: 7218 [2023-12-20 02:42:59,070 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 02:42:59,071 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 1424 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:59,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 883 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:42:59,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7218 states. [2023-12-20 02:42:59,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7218 to 5427. [2023-12-20 02:42:59,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 1.4480280132694434) internal successors, (7857), 5426 states have internal predecessors, (7857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 7857 transitions. [2023-12-20 02:42:59,146 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 7857 transitions. Word has length 59 [2023-12-20 02:42:59,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:59,147 INFO L495 AbstractCegarLoop]: Abstraction has 5427 states and 7857 transitions. [2023-12-20 02:42:59,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 7857 transitions. [2023-12-20 02:42:59,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-20 02:42:59,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:59,149 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] [2023-12-20 02:42:59,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:42:59,149 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:42:59,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1221423597, now seen corresponding path program 1 times [2023-12-20 02:42:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:59,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109997113] [2023-12-20 02:42:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:59,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:59,232 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 02:42:59,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:59,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109997113] [2023-12-20 02:42:59,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109997113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:59,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:59,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:42:59,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516330276] [2023-12-20 02:42:59,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:59,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:42:59,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:59,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:42:59,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:42:59,235 INFO L87 Difference]: Start difference. First operand 5427 states and 7857 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:59,322 INFO L93 Difference]: Finished difference Result 8575 states and 12450 transitions. [2023-12-20 02:42:59,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:42:59,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-20 02:42:59,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:59,328 INFO L225 Difference]: With dead ends: 8575 [2023-12-20 02:42:59,328 INFO L226 Difference]: Without dead ends: 3573 [2023-12-20 02:42:59,332 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 02:42:59,333 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 1237 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:59,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 682 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:42:59,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3573 states. [2023-12-20 02:42:59,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3573 to 3569. [2023-12-20 02:42:59,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3569 states, 3568 states have (on average 1.4226457399103138) internal successors, (5076), 3568 states have internal predecessors, (5076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3569 states to 3569 states and 5076 transitions. [2023-12-20 02:42:59,396 INFO L78 Accepts]: Start accepts. Automaton has 3569 states and 5076 transitions. Word has length 60 [2023-12-20 02:42:59,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:59,396 INFO L495 AbstractCegarLoop]: Abstraction has 3569 states and 5076 transitions. [2023-12-20 02:42:59,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3569 states and 5076 transitions. [2023-12-20 02:42:59,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-20 02:42:59,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:59,399 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] [2023-12-20 02:42:59,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 02:42:59,399 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 02:42:59,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:59,400 INFO L85 PathProgramCache]: Analyzing trace with hash 630688216, now seen corresponding path program 1 times [2023-12-20 02:42:59,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:59,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416036655] [2023-12-20 02:42:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:59,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:59,493 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 02:42:59,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:59,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416036655] [2023-12-20 02:42:59,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416036655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:59,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:59,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:42:59,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560632198] [2023-12-20 02:42:59,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:59,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:42:59,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:59,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:42:59,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:42:59,494 INFO L87 Difference]: Start difference. First operand 3569 states and 5076 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:59,551 INFO L93 Difference]: Finished difference Result 9543 states and 13750 transitions. [2023-12-20 02:42:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:42:59,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-12-20 02:42:59,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:59,560 INFO L225 Difference]: With dead ends: 9543 [2023-12-20 02:42:59,560 INFO L226 Difference]: Without dead ends: 6399 [2023-12-20 02:42:59,564 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 02:42:59,565 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 217 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:59,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 725 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:42:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2023-12-20 02:42:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 5981. [2023-12-20 02:42:59,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5981 states, 5980 states have (on average 1.4277591973244148) internal successors, (8538), 5980 states have internal predecessors, (8538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5981 states to 5981 states and 8538 transitions. [2023-12-20 02:42:59,642 INFO L78 Accepts]: Start accepts. Automaton has 5981 states and 8538 transitions. Word has length 60 [2023-12-20 02:42:59,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:59,643 INFO L495 AbstractCegarLoop]: Abstraction has 5981 states and 8538 transitions. [2023-12-20 02:42:59,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5981 states and 8538 transitions. [2023-12-20 02:42:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-20 02:42:59,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:59,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:42:59,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 02:42:59,645 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 02:42:59,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:59,646 INFO L85 PathProgramCache]: Analyzing trace with hash -842484734, now seen corresponding path program 1 times [2023-12-20 02:42:59,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:59,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814614246] [2023-12-20 02:42:59,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:59,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:59,781 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 02:42:59,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:59,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814614246] [2023-12-20 02:42:59,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814614246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:59,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:59,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:42:59,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727620960] [2023-12-20 02:42:59,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:59,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:42:59,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:59,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:42:59,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:42:59,783 INFO L87 Difference]: Start difference. First operand 5981 states and 8538 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:59,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:59,873 INFO L93 Difference]: Finished difference Result 12640 states and 17850 transitions. [2023-12-20 02:42:59,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:42:59,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-12-20 02:42:59,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:59,892 INFO L225 Difference]: With dead ends: 12640 [2023-12-20 02:42:59,892 INFO L226 Difference]: Without dead ends: 12638 [2023-12-20 02:42:59,896 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 02:42:59,896 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 530 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:59,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 2002 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:42:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12638 states. [2023-12-20 02:43:00,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12638 to 6425. [2023-12-20 02:43:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6425 states, 6424 states have (on average 1.3981942714819426) internal successors, (8982), 6424 states have internal predecessors, (8982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6425 states to 6425 states and 8982 transitions. [2023-12-20 02:43:00,042 INFO L78 Accepts]: Start accepts. Automaton has 6425 states and 8982 transitions. Word has length 63 [2023-12-20 02:43:00,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:00,042 INFO L495 AbstractCegarLoop]: Abstraction has 6425 states and 8982 transitions. [2023-12-20 02:43:00,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:00,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6425 states and 8982 transitions. [2023-12-20 02:43:00,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-20 02:43:00,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:00,044 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] [2023-12-20 02:43:00,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 02:43:00,045 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 02:43:00,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:00,045 INFO L85 PathProgramCache]: Analyzing trace with hash -177178688, now seen corresponding path program 1 times [2023-12-20 02:43:00,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:00,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199999741] [2023-12-20 02:43:00,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:00,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:00,093 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 02:43:00,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:00,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199999741] [2023-12-20 02:43:00,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199999741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:00,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:00,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:43:00,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931897961] [2023-12-20 02:43:00,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:00,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:43:00,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:00,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:43:00,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:43:00,095 INFO L87 Difference]: Start difference. First operand 6425 states and 8982 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:00,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:00,175 INFO L93 Difference]: Finished difference Result 17211 states and 24229 transitions. [2023-12-20 02:43:00,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:43:00,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-20 02:43:00,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:00,192 INFO L225 Difference]: With dead ends: 17211 [2023-12-20 02:43:00,192 INFO L226 Difference]: Without dead ends: 11205 [2023-12-20 02:43:00,201 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 02:43:00,202 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 252 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:00,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 643 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:00,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11205 states. [2023-12-20 02:43:00,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11205 to 11055. [2023-12-20 02:43:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11055 states, 11054 states have (on average 1.3820336529762982) internal successors, (15277), 11054 states have internal predecessors, (15277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11055 states to 11055 states and 15277 transitions. [2023-12-20 02:43:00,339 INFO L78 Accepts]: Start accepts. Automaton has 11055 states and 15277 transitions. Word has length 64 [2023-12-20 02:43:00,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:00,339 INFO L495 AbstractCegarLoop]: Abstraction has 11055 states and 15277 transitions. [2023-12-20 02:43:00,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:00,339 INFO L276 IsEmpty]: Start isEmpty. Operand 11055 states and 15277 transitions. [2023-12-20 02:43:00,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-20 02:43:00,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:00,341 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 02:43:00,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 02:43:00,342 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 02:43:00,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:00,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1061029162, now seen corresponding path program 1 times [2023-12-20 02:43:00,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:00,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796036661] [2023-12-20 02:43:00,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:00,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:00,417 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 02:43:00,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:00,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796036661] [2023-12-20 02:43:00,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796036661] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:00,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:00,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:43:00,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395564565] [2023-12-20 02:43:00,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:00,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:43:00,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:00,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:43:00,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:43:00,419 INFO L87 Difference]: Start difference. First operand 11055 states and 15277 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 02:43:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:00,516 INFO L93 Difference]: Finished difference Result 19398 states and 26920 transitions. [2023-12-20 02:43:00,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:43:00,517 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 02:43:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:00,534 INFO L225 Difference]: With dead ends: 19398 [2023-12-20 02:43:00,534 INFO L226 Difference]: Without dead ends: 15944 [2023-12-20 02:43:00,542 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 02:43:00,543 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 922 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:00,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1116 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:00,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15944 states. [2023-12-20 02:43:00,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15944 to 13842. [2023-12-20 02:43:00,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13842 states, 13841 states have (on average 1.37865761144426) internal successors, (19082), 13841 states have internal predecessors, (19082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:00,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13842 states to 13842 states and 19082 transitions. [2023-12-20 02:43:00,772 INFO L78 Accepts]: Start accepts. Automaton has 13842 states and 19082 transitions. Word has length 65 [2023-12-20 02:43:00,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:00,772 INFO L495 AbstractCegarLoop]: Abstraction has 13842 states and 19082 transitions. [2023-12-20 02:43:00,773 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 02:43:00,773 INFO L276 IsEmpty]: Start isEmpty. Operand 13842 states and 19082 transitions. [2023-12-20 02:43:00,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 02:43:00,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:00,775 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 02:43:00,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 02:43:00,776 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 02:43:00,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:00,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1636606449, now seen corresponding path program 1 times [2023-12-20 02:43:00,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:00,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916949569] [2023-12-20 02:43:00,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:00,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:00,818 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 02:43:00,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:00,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916949569] [2023-12-20 02:43:00,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916949569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:00,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:00,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:43:00,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402762660] [2023-12-20 02:43:00,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:00,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:43:00,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:00,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:43:00,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:43:00,820 INFO L87 Difference]: Start difference. First operand 13842 states and 19082 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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 02:43:00,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:00,876 INFO L93 Difference]: Finished difference Result 16704 states and 22968 transitions. [2023-12-20 02:43:00,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:43:00,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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 02:43:00,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:00,887 INFO L225 Difference]: With dead ends: 16704 [2023-12-20 02:43:00,887 INFO L226 Difference]: Without dead ends: 10968 [2023-12-20 02:43:00,893 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 02:43:00,894 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 175 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:00,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 762 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2023-12-20 02:43:00,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 10897. [2023-12-20 02:43:00,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10897 states, 10896 states have (on average 1.353891336270191) internal successors, (14752), 10896 states have internal predecessors, (14752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10897 states to 10897 states and 14752 transitions. [2023-12-20 02:43:01,009 INFO L78 Accepts]: Start accepts. Automaton has 10897 states and 14752 transitions. Word has length 66 [2023-12-20 02:43:01,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:01,009 INFO L495 AbstractCegarLoop]: Abstraction has 10897 states and 14752 transitions. [2023-12-20 02:43:01,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 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 02:43:01,010 INFO L276 IsEmpty]: Start isEmpty. Operand 10897 states and 14752 transitions. [2023-12-20 02:43:01,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:43:01,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:01,013 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 02:43:01,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 02:43:01,013 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 02:43:01,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:01,014 INFO L85 PathProgramCache]: Analyzing trace with hash 566564424, now seen corresponding path program 1 times [2023-12-20 02:43:01,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:01,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155978704] [2023-12-20 02:43:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:01,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:01,092 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 02:43:01,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:01,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155978704] [2023-12-20 02:43:01,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155978704] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:01,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:01,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:43:01,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472292233] [2023-12-20 02:43:01,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:01,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:43:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:01,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:43:01,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:43:01,094 INFO L87 Difference]: Start difference. First operand 10897 states and 14752 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 02:43:01,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:01,185 INFO L93 Difference]: Finished difference Result 15745 states and 21468 transitions. [2023-12-20 02:43:01,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:43:01,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 02:43:01,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:01,199 INFO L225 Difference]: With dead ends: 15745 [2023-12-20 02:43:01,199 INFO L226 Difference]: Without dead ends: 13327 [2023-12-20 02:43:01,206 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 02:43:01,207 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 844 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:01,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1085 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:01,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13327 states. [2023-12-20 02:43:01,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13327 to 12665. [2023-12-20 02:43:01,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12665 states, 12664 states have (on average 1.3534428300694883) internal successors, (17140), 12664 states have internal predecessors, (17140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:01,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12665 states to 12665 states and 17140 transitions. [2023-12-20 02:43:01,434 INFO L78 Accepts]: Start accepts. Automaton has 12665 states and 17140 transitions. Word has length 68 [2023-12-20 02:43:01,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:01,434 INFO L495 AbstractCegarLoop]: Abstraction has 12665 states and 17140 transitions. [2023-12-20 02:43:01,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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 02:43:01,434 INFO L276 IsEmpty]: Start isEmpty. Operand 12665 states and 17140 transitions. [2023-12-20 02:43:01,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-20 02:43:01,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:01,436 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 02:43:01,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 02:43:01,437 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 02:43:01,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:01,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1324938143, now seen corresponding path program 1 times [2023-12-20 02:43:01,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:01,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744659346] [2023-12-20 02:43:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:01,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:01,535 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 02:43:01,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:01,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744659346] [2023-12-20 02:43:01,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744659346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:01,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:01,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:43:01,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549868491] [2023-12-20 02:43:01,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:01,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:43:01,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:01,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:43:01,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:43:01,537 INFO L87 Difference]: Start difference. First operand 12665 states and 17140 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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 02:43:02,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:02,099 INFO L93 Difference]: Finished difference Result 38771 states and 52424 transitions. [2023-12-20 02:43:02,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:43:02,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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 02:43:02,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:02,131 INFO L225 Difference]: With dead ends: 38771 [2023-12-20 02:43:02,131 INFO L226 Difference]: Without dead ends: 31177 [2023-12-20 02:43:02,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:43:02,145 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 2354 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:02,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 644 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:43:02,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31177 states. [2023-12-20 02:43:02,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31177 to 15041. [2023-12-20 02:43:02,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15041 states, 15040 states have (on average 1.344813829787234) internal successors, (20226), 15040 states have internal predecessors, (20226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15041 states to 15041 states and 20226 transitions. [2023-12-20 02:43:02,475 INFO L78 Accepts]: Start accepts. Automaton has 15041 states and 20226 transitions. Word has length 68 [2023-12-20 02:43:02,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:02,476 INFO L495 AbstractCegarLoop]: Abstraction has 15041 states and 20226 transitions. [2023-12-20 02:43:02,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 6 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 02:43:02,476 INFO L276 IsEmpty]: Start isEmpty. Operand 15041 states and 20226 transitions. [2023-12-20 02:43:02,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-20 02:43:02,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:02,478 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] [2023-12-20 02:43:02,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 02:43:02,478 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 02:43:02,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:02,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1337021834, now seen corresponding path program 1 times [2023-12-20 02:43:02,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:02,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112511732] [2023-12-20 02:43:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:02,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:02,557 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 02:43:02,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:02,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112511732] [2023-12-20 02:43:02,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112511732] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:02,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:02,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:43:02,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967997197] [2023-12-20 02:43:02,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:02,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:43:02,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:43:02,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:43:02,559 INFO L87 Difference]: Start difference. First operand 15041 states and 20226 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:02,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:02,734 INFO L93 Difference]: Finished difference Result 23465 states and 31760 transitions. [2023-12-20 02:43:02,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:43:02,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2023-12-20 02:43:02,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:02,755 INFO L225 Difference]: With dead ends: 23465 [2023-12-20 02:43:02,755 INFO L226 Difference]: Without dead ends: 19535 [2023-12-20 02:43:02,765 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 02:43:02,766 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 859 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:02,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 1070 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:43:02,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19535 states. [2023-12-20 02:43:02,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19535 to 18285. [2023-12-20 02:43:02,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18285 states, 18284 states have (on average 1.3446729380879456) internal successors, (24586), 18284 states have internal predecessors, (24586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:03,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18285 states to 18285 states and 24586 transitions. [2023-12-20 02:43:03,009 INFO L78 Accepts]: Start accepts. Automaton has 18285 states and 24586 transitions. Word has length 70 [2023-12-20 02:43:03,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:03,009 INFO L495 AbstractCegarLoop]: Abstraction has 18285 states and 24586 transitions. [2023-12-20 02:43:03,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:03,010 INFO L276 IsEmpty]: Start isEmpty. Operand 18285 states and 24586 transitions. [2023-12-20 02:43:03,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:43:03,014 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:03,014 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 02:43:03,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 02:43:03,014 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 02:43:03,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:03,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1823322635, now seen corresponding path program 1 times [2023-12-20 02:43:03,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:03,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643772949] [2023-12-20 02:43:03,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:03,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:03,137 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 02:43:03,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:03,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643772949] [2023-12-20 02:43:03,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643772949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:03,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:03,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:43:03,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346520836] [2023-12-20 02:43:03,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:03,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:43:03,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:03,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:43:03,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:43:03,139 INFO L87 Difference]: Start difference. First operand 18285 states and 24586 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:03,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:03,295 INFO L93 Difference]: Finished difference Result 28175 states and 38013 transitions. [2023-12-20 02:43:03,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:43:03,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-20 02:43:03,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:03,317 INFO L225 Difference]: With dead ends: 28175 [2023-12-20 02:43:03,317 INFO L226 Difference]: Without dead ends: 22897 [2023-12-20 02:43:03,326 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 02:43:03,327 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 985 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:03,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1356 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:43:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22897 states. [2023-12-20 02:43:03,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22897 to 21601. [2023-12-20 02:43:03,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21601 states, 21600 states have (on average 1.348148148148148) internal successors, (29120), 21600 states have internal predecessors, (29120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:03,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21601 states to 21601 states and 29120 transitions. [2023-12-20 02:43:03,610 INFO L78 Accepts]: Start accepts. Automaton has 21601 states and 29120 transitions. Word has length 76 [2023-12-20 02:43:03,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:03,611 INFO L495 AbstractCegarLoop]: Abstraction has 21601 states and 29120 transitions. [2023-12-20 02:43:03,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:03,611 INFO L276 IsEmpty]: Start isEmpty. Operand 21601 states and 29120 transitions. [2023-12-20 02:43:03,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-20 02:43:03,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:03,615 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 02:43:03,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 02:43:03,615 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 02:43:03,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash -530660416, now seen corresponding path program 1 times [2023-12-20 02:43:03,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:03,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121944193] [2023-12-20 02:43:03,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:03,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:03,714 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 02:43:03,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:03,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121944193] [2023-12-20 02:43:03,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121944193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:03,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:03,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:43:03,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334803044] [2023-12-20 02:43:03,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:03,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:43:03,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:03,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:43:03,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:43:03,717 INFO L87 Difference]: Start difference. First operand 21601 states and 29120 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 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 02:43:04,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:04,298 INFO L93 Difference]: Finished difference Result 26278 states and 35311 transitions. [2023-12-20 02:43:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:43:04,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 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 02:43:04,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:04,322 INFO L225 Difference]: With dead ends: 26278 [2023-12-20 02:43:04,322 INFO L226 Difference]: Without dead ends: 25110 [2023-12-20 02:43:04,330 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 02:43:04,331 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1920 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1920 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:04,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1920 Valid, 605 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:43:04,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25110 states. [2023-12-20 02:43:04,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25110 to 21600. [2023-12-20 02:43:04,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21600 states, 21599 states have (on average 1.3480716699847215) internal successors, (29117), 21599 states have internal predecessors, (29117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:04,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21600 states to 21600 states and 29117 transitions. [2023-12-20 02:43:04,615 INFO L78 Accepts]: Start accepts. Automaton has 21600 states and 29117 transitions. Word has length 77 [2023-12-20 02:43:04,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:04,615 INFO L495 AbstractCegarLoop]: Abstraction has 21600 states and 29117 transitions. [2023-12-20 02:43:04,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 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 02:43:04,615 INFO L276 IsEmpty]: Start isEmpty. Operand 21600 states and 29117 transitions. [2023-12-20 02:43:04,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:43:04,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:04,622 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] [2023-12-20 02:43:04,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 02:43:04,623 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 02:43:04,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:04,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1707088534, now seen corresponding path program 1 times [2023-12-20 02:43:04,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:04,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810032129] [2023-12-20 02:43:04,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:04,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:04,941 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 02:43:04,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:04,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810032129] [2023-12-20 02:43:04,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810032129] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:04,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773310601] [2023-12-20 02:43:04,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:04,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:04,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:04,945 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 02:43:04,947 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 02:43:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:05,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 02:43:05,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:05,796 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 02:43:05,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:43:06,393 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 02:43:06,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773310601] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:43:06,394 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:43:06,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 19 [2023-12-20 02:43:06,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101337053] [2023-12-20 02:43:06,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:43:06,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-20 02:43:06,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:06,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-20 02:43:06,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:43:06,397 INFO L87 Difference]: Start difference. First operand 21600 states and 29117 transitions. Second operand has 20 states, 20 states have (on average 10.35) internal successors, (207), 19 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:08,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:08,284 INFO L93 Difference]: Finished difference Result 78732 states and 105308 transitions. [2023-12-20 02:43:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 02:43:08,285 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 10.35) internal successors, (207), 19 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-20 02:43:08,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:08,349 INFO L225 Difference]: With dead ends: 78732 [2023-12-20 02:43:08,349 INFO L226 Difference]: Without dead ends: 62982 [2023-12-20 02:43:08,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=343, Invalid=1063, Unknown=0, NotChecked=0, Total=1406 [2023-12-20 02:43:08,373 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 2401 mSDsluCounter, 2651 mSDsCounter, 0 mSdLazyCounter, 2590 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 2618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:08,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2401 Valid, 2928 Invalid, 2618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2590 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:43:08,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62982 states. [2023-12-20 02:43:08,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62982 to 22104. [2023-12-20 02:43:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22104 states, 22103 states have (on average 1.346106863321721) internal successors, (29753), 22103 states have internal predecessors, (29753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22104 states to 22104 states and 29753 transitions. [2023-12-20 02:43:08,856 INFO L78 Accepts]: Start accepts. Automaton has 22104 states and 29753 transitions. Word has length 83 [2023-12-20 02:43:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:08,856 INFO L495 AbstractCegarLoop]: Abstraction has 22104 states and 29753 transitions. [2023-12-20 02:43:08,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 10.35) internal successors, (207), 19 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:08,857 INFO L276 IsEmpty]: Start isEmpty. Operand 22104 states and 29753 transitions. [2023-12-20 02:43:08,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:43:08,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:08,863 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] [2023-12-20 02:43:08,873 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 02:43:09,069 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,SelfDestructingSolverStorable26 [2023-12-20 02:43:09,070 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 02:43:09,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:09,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1714171992, now seen corresponding path program 1 times [2023-12-20 02:43:09,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:09,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885998447] [2023-12-20 02:43:09,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:09,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:09,371 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 02:43:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885998447] [2023-12-20 02:43:09,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885998447] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:09,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:09,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:43:09,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482844262] [2023-12-20 02:43:09,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:09,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:43:09,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:09,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:43:09,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:43:09,373 INFO L87 Difference]: Start difference. First operand 22104 states and 29753 transitions. Second operand has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:10,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:10,581 INFO L93 Difference]: Finished difference Result 61792 states and 82015 transitions. [2023-12-20 02:43:10,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 02:43:10,582 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-20 02:43:10,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:10,639 INFO L225 Difference]: With dead ends: 61792 [2023-12-20 02:43:10,639 INFO L226 Difference]: Without dead ends: 53887 [2023-12-20 02:43:10,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=256, Invalid=736, Unknown=0, NotChecked=0, Total=992 [2023-12-20 02:43:10,657 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 2784 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2784 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:10,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2784 Valid, 1753 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:43:10,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53887 states. [2023-12-20 02:43:11,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53887 to 31334. [2023-12-20 02:43:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31334 states, 31333 states have (on average 1.3409504356429325) internal successors, (42016), 31333 states have internal predecessors, (42016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:11,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31334 states to 31334 states and 42016 transitions. [2023-12-20 02:43:11,145 INFO L78 Accepts]: Start accepts. Automaton has 31334 states and 42016 transitions. Word has length 83 [2023-12-20 02:43:11,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:11,145 INFO L495 AbstractCegarLoop]: Abstraction has 31334 states and 42016 transitions. [2023-12-20 02:43:11,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.545454545454546) internal successors, (83), 10 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:11,145 INFO L276 IsEmpty]: Start isEmpty. Operand 31334 states and 42016 transitions. [2023-12-20 02:43:11,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:43:11,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:11,151 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] [2023-12-20 02:43:11,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 02:43:11,152 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 02:43:11,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash -685793318, now seen corresponding path program 1 times [2023-12-20 02:43:11,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:11,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419846954] [2023-12-20 02:43:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:11,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:11,244 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 02:43:11,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:11,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419846954] [2023-12-20 02:43:11,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419846954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:11,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:11,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:43:11,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93848257] [2023-12-20 02:43:11,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:11,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:43:11,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:11,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:43:11,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:43:11,245 INFO L87 Difference]: Start difference. First operand 31334 states and 42016 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:11,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:11,474 INFO L93 Difference]: Finished difference Result 87894 states and 117810 transitions. [2023-12-20 02:43:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:43:11,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-20 02:43:11,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:11,552 INFO L225 Difference]: With dead ends: 87894 [2023-12-20 02:43:11,553 INFO L226 Difference]: Without dead ends: 57515 [2023-12-20 02:43:11,586 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 02:43:11,587 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 235 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:11,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 679 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:11,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57515 states. [2023-12-20 02:43:12,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57515 to 46597. [2023-12-20 02:43:12,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46597 states, 46596 states have (on average 1.3259721864537728) internal successors, (61785), 46596 states have internal predecessors, (61785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46597 states to 46597 states and 61785 transitions. [2023-12-20 02:43:12,399 INFO L78 Accepts]: Start accepts. Automaton has 46597 states and 61785 transitions. Word has length 84 [2023-12-20 02:43:12,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:12,399 INFO L495 AbstractCegarLoop]: Abstraction has 46597 states and 61785 transitions. [2023-12-20 02:43:12,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:12,399 INFO L276 IsEmpty]: Start isEmpty. Operand 46597 states and 61785 transitions. [2023-12-20 02:43:12,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:43:12,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:12,407 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] [2023-12-20 02:43:12,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 02:43:12,407 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 02:43:12,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:12,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1458902202, now seen corresponding path program 1 times [2023-12-20 02:43:12,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:12,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873595935] [2023-12-20 02:43:12,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:12,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:12,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:12,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873595935] [2023-12-20 02:43:12,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873595935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:12,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:12,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:43:12,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921521569] [2023-12-20 02:43:12,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:12,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:43:12,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:12,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:43:12,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:43:12,478 INFO L87 Difference]: Start difference. First operand 46597 states and 61785 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 02:43:13,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:13,029 INFO L93 Difference]: Finished difference Result 92169 states and 122345 transitions. [2023-12-20 02:43:13,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:43:13,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 02:43:13,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:13,120 INFO L225 Difference]: With dead ends: 92169 [2023-12-20 02:43:13,121 INFO L226 Difference]: Without dead ends: 46599 [2023-12-20 02:43:13,139 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 02:43:13,140 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 184 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 682 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 02:43:13,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 682 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:13,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46599 states. [2023-12-20 02:43:13,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46599 to 46597. [2023-12-20 02:43:13,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46597 states, 46596 states have (on average 1.3114215812516097) internal successors, (61107), 46596 states have internal predecessors, (61107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:13,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46597 states to 46597 states and 61107 transitions. [2023-12-20 02:43:13,802 INFO L78 Accepts]: Start accepts. Automaton has 46597 states and 61107 transitions. Word has length 84 [2023-12-20 02:43:13,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:13,802 INFO L495 AbstractCegarLoop]: Abstraction has 46597 states and 61107 transitions. [2023-12-20 02:43:13,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 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 02:43:13,802 INFO L276 IsEmpty]: Start isEmpty. Operand 46597 states and 61107 transitions. [2023-12-20 02:43:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:43:13,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:13,807 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] [2023-12-20 02:43:13,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 02:43:13,808 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 02:43:13,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:13,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1634855839, now seen corresponding path program 1 times [2023-12-20 02:43:13,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:13,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129045099] [2023-12-20 02:43:13,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:13,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:14,000 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 02:43:14,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:14,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129045099] [2023-12-20 02:43:14,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129045099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:14,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:14,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:43:14,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132665605] [2023-12-20 02:43:14,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:14,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:43:14,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:14,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:43:14,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:43:14,001 INFO L87 Difference]: Start difference. First operand 46597 states and 61107 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:15,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:15,036 INFO L93 Difference]: Finished difference Result 142139 states and 186769 transitions. [2023-12-20 02:43:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:43:15,037 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-20 02:43:15,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:15,157 INFO L225 Difference]: With dead ends: 142139 [2023-12-20 02:43:15,157 INFO L226 Difference]: Without dead ends: 112851 [2023-12-20 02:43:15,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:43:15,195 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1993 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:15,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 1079 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:43:15,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112851 states. [2023-12-20 02:43:16,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112851 to 46426. [2023-12-20 02:43:16,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46426 states, 46425 states have (on average 1.3119439956919763) internal successors, (60907), 46425 states have internal predecessors, (60907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:16,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46426 states to 46426 states and 60907 transitions. [2023-12-20 02:43:16,177 INFO L78 Accepts]: Start accepts. Automaton has 46426 states and 60907 transitions. Word has length 84 [2023-12-20 02:43:16,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:16,177 INFO L495 AbstractCegarLoop]: Abstraction has 46426 states and 60907 transitions. [2023-12-20 02:43:16,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand 46426 states and 60907 transitions. [2023-12-20 02:43:16,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-20 02:43:16,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:16,183 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:16,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 02:43:16,183 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 02:43:16,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:16,184 INFO L85 PathProgramCache]: Analyzing trace with hash -182704582, now seen corresponding path program 1 times [2023-12-20 02:43:16,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:16,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465165682] [2023-12-20 02:43:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:16,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:16,349 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 02:43:16,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:16,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465165682] [2023-12-20 02:43:16,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465165682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:16,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:16,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:43:16,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385985268] [2023-12-20 02:43:16,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:16,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:43:16,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:16,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:43:16,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:43:16,351 INFO L87 Difference]: Start difference. First operand 46426 states and 60907 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:17,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:17,042 INFO L93 Difference]: Finished difference Result 61718 states and 80711 transitions. [2023-12-20 02:43:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:43:17,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-20 02:43:17,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:17,086 INFO L225 Difference]: With dead ends: 61718 [2023-12-20 02:43:17,086 INFO L226 Difference]: Without dead ends: 49069 [2023-12-20 02:43:17,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:43:17,102 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 1645 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:17,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1645 Valid, 833 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:43:17,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49069 states. [2023-12-20 02:43:17,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49069 to 44579. [2023-12-20 02:43:17,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44579 states, 44578 states have (on average 1.3125532774014088) internal successors, (58511), 44578 states have internal predecessors, (58511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44579 states to 44579 states and 58511 transitions. [2023-12-20 02:43:17,607 INFO L78 Accepts]: Start accepts. Automaton has 44579 states and 58511 transitions. Word has length 84 [2023-12-20 02:43:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:17,607 INFO L495 AbstractCegarLoop]: Abstraction has 44579 states and 58511 transitions. [2023-12-20 02:43:17,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 44579 states and 58511 transitions. [2023-12-20 02:43:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 02:43:17,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:17,613 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] [2023-12-20 02:43:17,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 02:43:17,613 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 02:43:17,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:17,613 INFO L85 PathProgramCache]: Analyzing trace with hash -481090084, now seen corresponding path program 1 times [2023-12-20 02:43:17,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:17,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728418181] [2023-12-20 02:43:17,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:17,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:18,007 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 02:43:18,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:18,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728418181] [2023-12-20 02:43:18,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728418181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:18,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:18,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:43:18,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305866647] [2023-12-20 02:43:18,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:18,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:43:18,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:18,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:43:18,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:43:18,009 INFO L87 Difference]: Start difference. First operand 44579 states and 58511 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:18,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:18,850 INFO L93 Difference]: Finished difference Result 86921 states and 112684 transitions. [2023-12-20 02:43:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:43:18,850 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-20 02:43:18,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:18,931 INFO L225 Difference]: With dead ends: 86921 [2023-12-20 02:43:18,932 INFO L226 Difference]: Without dead ends: 78460 [2023-12-20 02:43:18,956 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 02:43:18,956 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1322 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:18,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 1531 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:43:19,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78460 states. [2023-12-20 02:43:19,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78460 to 44565. [2023-12-20 02:43:19,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44565 states, 44564 states have (on average 1.3126290279149089) internal successors, (58496), 44564 states have internal predecessors, (58496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44565 states to 44565 states and 58496 transitions. [2023-12-20 02:43:19,678 INFO L78 Accepts]: Start accepts. Automaton has 44565 states and 58496 transitions. Word has length 85 [2023-12-20 02:43:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:19,678 INFO L495 AbstractCegarLoop]: Abstraction has 44565 states and 58496 transitions. [2023-12-20 02:43:19,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand 44565 states and 58496 transitions. [2023-12-20 02:43:19,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-20 02:43:19,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:19,684 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] [2023-12-20 02:43:19,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 02:43:19,685 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 02:43:19,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:19,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1620424359, now seen corresponding path program 1 times [2023-12-20 02:43:19,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:19,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022748209] [2023-12-20 02:43:19,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:19,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:19,788 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 02:43:19,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:19,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022748209] [2023-12-20 02:43:19,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022748209] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:19,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105763460] [2023-12-20 02:43:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:19,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:19,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:19,793 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 02:43:19,796 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 02:43:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:20,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 02:43:20,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:20,114 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 02:43:20,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:43:20,412 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 02:43:20,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105763460] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:43:20,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:43:20,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-12-20 02:43:20,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747366026] [2023-12-20 02:43:20,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:43:20,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:43:20,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:20,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:43:20,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:43:20,415 INFO L87 Difference]: Start difference. First operand 44565 states and 58496 transitions. Second operand has 8 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:20,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:20,791 INFO L93 Difference]: Finished difference Result 127529 states and 165757 transitions. [2023-12-20 02:43:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:43:20,792 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-20 02:43:20,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:20,883 INFO L225 Difference]: With dead ends: 127529 [2023-12-20 02:43:20,884 INFO L226 Difference]: Without dead ends: 83791 [2023-12-20 02:43:20,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:43:20,923 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 524 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:20,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1856 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:43:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83791 states. [2023-12-20 02:43:21,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83791 to 57495. [2023-12-20 02:43:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57495 states, 57494 states have (on average 1.3026750617455733) internal successors, (74896), 57494 states have internal predecessors, (74896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:21,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57495 states to 57495 states and 74896 transitions. [2023-12-20 02:43:21,817 INFO L78 Accepts]: Start accepts. Automaton has 57495 states and 74896 transitions. Word has length 85 [2023-12-20 02:43:21,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:21,817 INFO L495 AbstractCegarLoop]: Abstraction has 57495 states and 74896 transitions. [2023-12-20 02:43:21,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.625) internal successors, (165), 8 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:21,818 INFO L276 IsEmpty]: Start isEmpty. Operand 57495 states and 74896 transitions. [2023-12-20 02:43:21,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-20 02:43:21,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:21,823 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] [2023-12-20 02:43:21,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-20 02:43:22,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-12-20 02:43:22,029 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 02:43:22,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:22,029 INFO L85 PathProgramCache]: Analyzing trace with hash -616651013, now seen corresponding path program 1 times [2023-12-20 02:43:22,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:22,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518264316] [2023-12-20 02:43:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:22,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:22,092 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 02:43:22,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:22,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518264316] [2023-12-20 02:43:22,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518264316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:22,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:22,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:43:22,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533207992] [2023-12-20 02:43:22,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:22,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:43:22,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:22,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:43:22,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:43:22,094 INFO L87 Difference]: Start difference. First operand 57495 states and 74896 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:22,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:22,949 INFO L93 Difference]: Finished difference Result 121616 states and 158311 transitions. [2023-12-20 02:43:22,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 02:43:22,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-20 02:43:22,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:23,015 INFO L225 Difference]: With dead ends: 121616 [2023-12-20 02:43:23,015 INFO L226 Difference]: Without dead ends: 64603 [2023-12-20 02:43:23,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:43:23,039 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 938 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:23,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 575 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:43:23,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64603 states. [2023-12-20 02:43:23,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64603 to 52122. [2023-12-20 02:43:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52122 states, 52121 states have (on average 1.2745726290746533) internal successors, (66432), 52121 states have internal predecessors, (66432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52122 states to 52122 states and 66432 transitions. [2023-12-20 02:43:23,688 INFO L78 Accepts]: Start accepts. Automaton has 52122 states and 66432 transitions. Word has length 88 [2023-12-20 02:43:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:23,689 INFO L495 AbstractCegarLoop]: Abstraction has 52122 states and 66432 transitions. [2023-12-20 02:43:23,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:23,689 INFO L276 IsEmpty]: Start isEmpty. Operand 52122 states and 66432 transitions. [2023-12-20 02:43:23,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-20 02:43:23,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:23,694 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] [2023-12-20 02:43:23,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-12-20 02:43:23,694 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 02:43:23,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:23,694 INFO L85 PathProgramCache]: Analyzing trace with hash 822012803, now seen corresponding path program 1 times [2023-12-20 02:43:23,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:23,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557827861] [2023-12-20 02:43:23,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:23,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:23,746 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 02:43:23,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:23,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557827861] [2023-12-20 02:43:23,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557827861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:23,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:23,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:43:23,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981802192] [2023-12-20 02:43:23,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:23,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:43:23,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:23,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:43:23,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:43:23,748 INFO L87 Difference]: Start difference. First operand 52122 states and 66432 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:24,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:24,082 INFO L93 Difference]: Finished difference Result 70841 states and 90220 transitions. [2023-12-20 02:43:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:43:24,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-20 02:43:24,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:24,115 INFO L225 Difference]: With dead ends: 70841 [2023-12-20 02:43:24,115 INFO L226 Difference]: Without dead ends: 30289 [2023-12-20 02:43:24,133 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 02:43:24,133 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 129 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:24,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 715 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:24,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30289 states. [2023-12-20 02:43:24,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30289 to 28931. [2023-12-20 02:43:24,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28931 states, 28930 states have (on average 1.255686138956101) internal successors, (36327), 28930 states have internal predecessors, (36327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:24,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28931 states to 28931 states and 36327 transitions. [2023-12-20 02:43:24,383 INFO L78 Accepts]: Start accepts. Automaton has 28931 states and 36327 transitions. Word has length 88 [2023-12-20 02:43:24,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:24,384 INFO L495 AbstractCegarLoop]: Abstraction has 28931 states and 36327 transitions. [2023-12-20 02:43:24,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:24,384 INFO L276 IsEmpty]: Start isEmpty. Operand 28931 states and 36327 transitions. [2023-12-20 02:43:24,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 02:43:24,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:24,389 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:24,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 02:43:24,389 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 02:43:24,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:24,390 INFO L85 PathProgramCache]: Analyzing trace with hash 406158463, now seen corresponding path program 1 times [2023-12-20 02:43:24,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:24,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836767235] [2023-12-20 02:43:24,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:24,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 02:43:24,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:24,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836767235] [2023-12-20 02:43:24,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836767235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:24,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:24,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:43:24,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584839206] [2023-12-20 02:43:24,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:24,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:43:24,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:24,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:43:24,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:43:24,439 INFO L87 Difference]: Start difference. First operand 28931 states and 36327 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:24,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:24,695 INFO L93 Difference]: Finished difference Result 41363 states and 51908 transitions. [2023-12-20 02:43:24,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:43:24,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 02:43:24,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:24,723 INFO L225 Difference]: With dead ends: 41363 [2023-12-20 02:43:24,723 INFO L226 Difference]: Without dead ends: 22569 [2023-12-20 02:43:24,738 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 02:43:24,738 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 153 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:24,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 710 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:24,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22569 states. [2023-12-20 02:43:24,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22569 to 21697. [2023-12-20 02:43:24,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21697 states, 21696 states have (on average 1.2411965339233038) internal successors, (26929), 21696 states have internal predecessors, (26929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:24,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21697 states to 21697 states and 26929 transitions. [2023-12-20 02:43:24,920 INFO L78 Accepts]: Start accepts. Automaton has 21697 states and 26929 transitions. Word has length 92 [2023-12-20 02:43:24,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:24,920 INFO L495 AbstractCegarLoop]: Abstraction has 21697 states and 26929 transitions. [2023-12-20 02:43:24,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:24,920 INFO L276 IsEmpty]: Start isEmpty. Operand 21697 states and 26929 transitions. [2023-12-20 02:43:24,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:43:24,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:24,923 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 02:43:24,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-20 02:43:24,923 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 02:43:24,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:24,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1609435996, now seen corresponding path program 1 times [2023-12-20 02:43:24,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:24,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612200348] [2023-12-20 02:43:24,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:24,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:24,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:24,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612200348] [2023-12-20 02:43:24,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612200348] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:24,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105122369] [2023-12-20 02:43:24,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:24,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:24,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:24,993 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 02:43:25,013 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 02:43:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:25,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 02:43:25,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:25,446 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:43:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:25,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105122369] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:43:25,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:43:25,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-20 02:43:25,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696796363] [2023-12-20 02:43:25,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:43:25,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:43:25,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:25,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:43:25,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:43:25,716 INFO L87 Difference]: Start difference. First operand 21697 states and 26929 transitions. Second operand has 14 states, 14 states have (on average 18.142857142857142) internal successors, (254), 14 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 02:43:26,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:26,277 INFO L93 Difference]: Finished difference Result 54627 states and 67453 transitions. [2023-12-20 02:43:26,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:43:26,278 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.142857142857142) internal successors, (254), 14 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 02:43:26,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:26,306 INFO L225 Difference]: With dead ends: 54627 [2023-12-20 02:43:26,306 INFO L226 Difference]: Without dead ends: 33339 [2023-12-20 02:43:26,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 177 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 02:43:26,322 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 4191 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4191 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:26,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4191 Valid, 891 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:43:26,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33339 states. [2023-12-20 02:43:26,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33339 to 23014. [2023-12-20 02:43:26,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23014 states, 23013 states have (on average 1.2140529266067006) internal successors, (27939), 23013 states have internal predecessors, (27939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23014 states to 23014 states and 27939 transitions. [2023-12-20 02:43:26,638 INFO L78 Accepts]: Start accepts. Automaton has 23014 states and 27939 transitions. Word has length 93 [2023-12-20 02:43:26,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:26,638 INFO L495 AbstractCegarLoop]: Abstraction has 23014 states and 27939 transitions. [2023-12-20 02:43:26,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.142857142857142) internal successors, (254), 14 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 02:43:26,638 INFO L276 IsEmpty]: Start isEmpty. Operand 23014 states and 27939 transitions. [2023-12-20 02:43:26,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 02:43:26,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:26,642 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:26,646 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 02:43:26,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:26,842 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 02:43:26,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1843323391, now seen corresponding path program 1 times [2023-12-20 02:43:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:26,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198993399] [2023-12-20 02:43:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:26,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:26,901 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:43:26,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:26,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198993399] [2023-12-20 02:43:26,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198993399] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:26,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:26,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:43:26,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671677792] [2023-12-20 02:43:26,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:26,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:43:26,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:26,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:43:26,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:43:26,903 INFO L87 Difference]: Start difference. First operand 23014 states and 27939 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 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 02:43:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:27,289 INFO L93 Difference]: Finished difference Result 56915 states and 69060 transitions. [2023-12-20 02:43:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:43:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 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 97 [2023-12-20 02:43:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:27,330 INFO L225 Difference]: With dead ends: 56915 [2023-12-20 02:43:27,331 INFO L226 Difference]: Without dead ends: 46756 [2023-12-20 02:43:27,347 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 02:43:27,348 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 400 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:27,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 781 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:43:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46756 states. [2023-12-20 02:43:27,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46756 to 28042. [2023-12-20 02:43:27,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28042 states, 28041 states have (on average 1.215256231946079) internal successors, (34077), 28041 states have internal predecessors, (34077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28042 states to 28042 states and 34077 transitions. [2023-12-20 02:43:27,766 INFO L78 Accepts]: Start accepts. Automaton has 28042 states and 34077 transitions. Word has length 97 [2023-12-20 02:43:27,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:27,766 INFO L495 AbstractCegarLoop]: Abstraction has 28042 states and 34077 transitions. [2023-12-20 02:43:27,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 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 02:43:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 28042 states and 34077 transitions. [2023-12-20 02:43:27,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 02:43:27,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:27,770 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:27,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-20 02:43:27,770 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 02:43:27,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:27,771 INFO L85 PathProgramCache]: Analyzing trace with hash -296129504, now seen corresponding path program 1 times [2023-12-20 02:43:27,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:27,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593388855] [2023-12-20 02:43:27,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:27,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:28,051 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:28,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:28,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593388855] [2023-12-20 02:43:28,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593388855] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:28,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280185002] [2023-12-20 02:43:28,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:28,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:28,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:28,053 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 02:43:28,055 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 02:43:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:28,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-20 02:43:28,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:28,819 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:43:28,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280185002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:28,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:43:28,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 18 [2023-12-20 02:43:28,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676976082] [2023-12-20 02:43:28,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:28,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:43:28,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:28,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:43:28,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2023-12-20 02:43:28,820 INFO L87 Difference]: Start difference. First operand 28042 states and 34077 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:30,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:30,150 INFO L93 Difference]: Finished difference Result 54558 states and 66299 transitions. [2023-12-20 02:43:30,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-20 02:43:30,150 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 02:43:30,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:30,193 INFO L225 Difference]: With dead ends: 54558 [2023-12-20 02:43:30,193 INFO L226 Difference]: Without dead ends: 48164 [2023-12-20 02:43:30,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=315, Invalid=1325, Unknown=0, NotChecked=0, Total=1640 [2023-12-20 02:43:30,207 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 2023 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2023 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:30,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2023 Valid, 2158 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:43:30,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48164 states. [2023-12-20 02:43:30,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48164 to 30192. [2023-12-20 02:43:30,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30192 states, 30191 states have (on average 1.2122818058361764) internal successors, (36600), 30191 states have internal predecessors, (36600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30192 states to 30192 states and 36600 transitions. [2023-12-20 02:43:30,570 INFO L78 Accepts]: Start accepts. Automaton has 30192 states and 36600 transitions. Word has length 97 [2023-12-20 02:43:30,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:30,571 INFO L495 AbstractCegarLoop]: Abstraction has 30192 states and 36600 transitions. [2023-12-20 02:43:30,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:30,571 INFO L276 IsEmpty]: Start isEmpty. Operand 30192 states and 36600 transitions. [2023-12-20 02:43:30,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 02:43:30,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:30,575 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:30,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 02:43:30,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-12-20 02:43:30,776 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 02:43:30,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:30,776 INFO L85 PathProgramCache]: Analyzing trace with hash -993295110, now seen corresponding path program 1 times [2023-12-20 02:43:30,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:30,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006514867] [2023-12-20 02:43:30,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:30,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 02:43:30,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:30,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006514867] [2023-12-20 02:43:30,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006514867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:30,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:30,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:43:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665043333] [2023-12-20 02:43:30,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:30,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:43:30,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:30,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:43:30,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:43:30,838 INFO L87 Difference]: Start difference. First operand 30192 states and 36600 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:31,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:31,161 INFO L93 Difference]: Finished difference Result 54337 states and 65824 transitions. [2023-12-20 02:43:31,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:43:31,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 02:43:31,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:31,329 INFO L225 Difference]: With dead ends: 54337 [2023-12-20 02:43:31,330 INFO L226 Difference]: Without dead ends: 46095 [2023-12-20 02:43:31,341 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 02:43:31,342 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 375 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:31,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 810 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:43:31,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46095 states. [2023-12-20 02:43:31,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46095 to 34366. [2023-12-20 02:43:31,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34366 states, 34365 states have (on average 1.2133857122071876) internal successors, (41698), 34365 states have internal predecessors, (41698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34366 states to 34366 states and 41698 transitions. [2023-12-20 02:43:31,662 INFO L78 Accepts]: Start accepts. Automaton has 34366 states and 41698 transitions. Word has length 97 [2023-12-20 02:43:31,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:31,662 INFO L495 AbstractCegarLoop]: Abstraction has 34366 states and 41698 transitions. [2023-12-20 02:43:31,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:31,662 INFO L276 IsEmpty]: Start isEmpty. Operand 34366 states and 41698 transitions. [2023-12-20 02:43:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-20 02:43:31,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:31,666 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:31,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-20 02:43:31,666 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 02:43:31,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:31,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1912269733, now seen corresponding path program 1 times [2023-12-20 02:43:31,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:31,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629413083] [2023-12-20 02:43:31,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:31,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:31,999 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:32,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:32,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629413083] [2023-12-20 02:43:32,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629413083] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:32,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375257256] [2023-12-20 02:43:32,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:32,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:32,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:32,004 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 02:43:32,034 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 02:43:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:32,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-20 02:43:32,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:33,032 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:43:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:33,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375257256] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:43:33,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:43:33,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2023-12-20 02:43:33,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81113003] [2023-12-20 02:43:33,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:43:33,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-20 02:43:33,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:33,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-20 02:43:33,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:43:33,621 INFO L87 Difference]: Start difference. First operand 34366 states and 41698 transitions. Second operand has 22 states, 22 states have (on average 11.181818181818182) internal successors, (246), 22 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:37,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:37,513 INFO L93 Difference]: Finished difference Result 96127 states and 115688 transitions. [2023-12-20 02:43:37,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-12-20 02:43:37,514 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.181818181818182) internal successors, (246), 22 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2023-12-20 02:43:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:37,593 INFO L225 Difference]: With dead ends: 96127 [2023-12-20 02:43:37,593 INFO L226 Difference]: Without dead ends: 81381 [2023-12-20 02:43:37,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1437 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1296, Invalid=4106, Unknown=0, NotChecked=0, Total=5402 [2023-12-20 02:43:37,621 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 2827 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 3664 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2827 SdHoareTripleChecker+Valid, 3881 SdHoareTripleChecker+Invalid, 3706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 3664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:37,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2827 Valid, 3881 Invalid, 3706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 3664 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 02:43:37,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81381 states. [2023-12-20 02:43:38,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81381 to 45935. [2023-12-20 02:43:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45935 states, 45934 states have (on average 1.2131101145121261) internal successors, (55723), 45934 states have internal predecessors, (55723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:38,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45935 states to 45935 states and 55723 transitions. [2023-12-20 02:43:38,126 INFO L78 Accepts]: Start accepts. Automaton has 45935 states and 55723 transitions. Word has length 97 [2023-12-20 02:43:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:38,127 INFO L495 AbstractCegarLoop]: Abstraction has 45935 states and 55723 transitions. [2023-12-20 02:43:38,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.181818181818182) internal successors, (246), 22 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 45935 states and 55723 transitions. [2023-12-20 02:43:38,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:43:38,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:38,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:38,142 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 02:43:38,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:38,338 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 02:43:38,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:38,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1560974769, now seen corresponding path program 1 times [2023-12-20 02:43:38,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:38,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229124941] [2023-12-20 02:43:38,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:38,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:43:38,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:38,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229124941] [2023-12-20 02:43:38,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229124941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:38,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:38,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:43:38,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073238815] [2023-12-20 02:43:38,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:38,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:43:38,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:38,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:43:38,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:43:38,396 INFO L87 Difference]: Start difference. First operand 45935 states and 55723 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:38,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:38,757 INFO L93 Difference]: Finished difference Result 67490 states and 81784 transitions. [2023-12-20 02:43:38,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:43:38,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-20 02:43:38,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:38,819 INFO L225 Difference]: With dead ends: 67490 [2023-12-20 02:43:38,819 INFO L226 Difference]: Without dead ends: 62592 [2023-12-20 02:43:38,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:43:38,839 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 399 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:38,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 788 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:43:38,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62592 states. [2023-12-20 02:43:39,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62592 to 45935. [2023-12-20 02:43:39,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45935 states, 45934 states have (on average 1.2131101145121261) internal successors, (55723), 45934 states have internal predecessors, (55723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:39,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45935 states to 45935 states and 55723 transitions. [2023-12-20 02:43:39,311 INFO L78 Accepts]: Start accepts. Automaton has 45935 states and 55723 transitions. Word has length 98 [2023-12-20 02:43:39,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:39,312 INFO L495 AbstractCegarLoop]: Abstraction has 45935 states and 55723 transitions. [2023-12-20 02:43:39,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:39,312 INFO L276 IsEmpty]: Start isEmpty. Operand 45935 states and 55723 transitions. [2023-12-20 02:43:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:43:39,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:39,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:39,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-20 02:43:39,317 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 02:43:39,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:39,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1160983570, now seen corresponding path program 1 times [2023-12-20 02:43:39,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:39,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031309443] [2023-12-20 02:43:39,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:39,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:39,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:39,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031309443] [2023-12-20 02:43:39,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031309443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:39,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:39,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:43:39,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233453550] [2023-12-20 02:43:39,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:39,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:43:39,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:39,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:43:39,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:43:39,386 INFO L87 Difference]: Start difference. First operand 45935 states and 55723 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:39,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:39,567 INFO L93 Difference]: Finished difference Result 88082 states and 107758 transitions. [2023-12-20 02:43:39,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:43:39,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-20 02:43:39,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:39,608 INFO L225 Difference]: With dead ends: 88082 [2023-12-20 02:43:39,608 INFO L226 Difference]: Without dead ends: 42593 [2023-12-20 02:43:39,634 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 02:43:39,634 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 159 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:39,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 669 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:39,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42593 states. [2023-12-20 02:43:39,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42593 to 40704. [2023-12-20 02:43:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40704 states, 40703 states have (on average 1.2083630199248212) internal successors, (49184), 40703 states have internal predecessors, (49184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40704 states to 40704 states and 49184 transitions. [2023-12-20 02:43:40,015 INFO L78 Accepts]: Start accepts. Automaton has 40704 states and 49184 transitions. Word has length 98 [2023-12-20 02:43:40,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:40,015 INFO L495 AbstractCegarLoop]: Abstraction has 40704 states and 49184 transitions. [2023-12-20 02:43:40,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 40704 states and 49184 transitions. [2023-12-20 02:43:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:43:40,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:40,020 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:40,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 02:43:40,021 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 02:43:40,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:40,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1475201588, now seen corresponding path program 1 times [2023-12-20 02:43:40,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:40,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671456765] [2023-12-20 02:43:40,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:40,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:40,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671456765] [2023-12-20 02:43:40,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671456765] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227644363] [2023-12-20 02:43:40,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:40,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:40,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:40,297 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 02:43:40,308 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 02:43:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:40,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 02:43:40,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:40,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:43:41,585 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:41,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227644363] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:43:41,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:43:41,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 12] total 28 [2023-12-20 02:43:41,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831040058] [2023-12-20 02:43:41,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:43:41,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-20 02:43:41,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:41,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-20 02:43:41,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:43:41,587 INFO L87 Difference]: Start difference. First operand 40704 states and 49184 transitions. Second operand has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 28 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:49,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:49,172 INFO L93 Difference]: Finished difference Result 198649 states and 240048 transitions. [2023-12-20 02:43:49,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2023-12-20 02:43:49,173 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 28 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have 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 02:43:49,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:49,347 INFO L225 Difference]: With dead ends: 198649 [2023-12-20 02:43:49,348 INFO L226 Difference]: Without dead ends: 163478 [2023-12-20 02:43:49,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5992 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=3228, Invalid=14594, Unknown=0, NotChecked=0, Total=17822 [2023-12-20 02:43:49,408 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 7632 mSDsluCounter, 8097 mSDsCounter, 0 mSdLazyCounter, 7390 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7632 SdHoareTripleChecker+Valid, 8715 SdHoareTripleChecker+Invalid, 7545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 7390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:49,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7632 Valid, 8715 Invalid, 7545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 7390 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-20 02:43:49,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163478 states. [2023-12-20 02:43:50,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163478 to 41027. [2023-12-20 02:43:50,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41027 states, 41026 states have (on average 1.207478184565885) internal successors, (49538), 41026 states have internal predecessors, (49538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:50,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41027 states to 41027 states and 49538 transitions. [2023-12-20 02:43:50,420 INFO L78 Accepts]: Start accepts. Automaton has 41027 states and 49538 transitions. Word has length 98 [2023-12-20 02:43:50,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:50,420 INFO L495 AbstractCegarLoop]: Abstraction has 41027 states and 49538 transitions. [2023-12-20 02:43:50,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 28 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:50,421 INFO L276 IsEmpty]: Start isEmpty. Operand 41027 states and 49538 transitions. [2023-12-20 02:43:50,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:43:50,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:50,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:50,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-20 02:43:50,625 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 02:43:50,625 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 02:43:50,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:50,625 INFO L85 PathProgramCache]: Analyzing trace with hash 32626469, now seen corresponding path program 1 times [2023-12-20 02:43:50,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:50,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361807533] [2023-12-20 02:43:50,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:50,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:50,682 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 02:43:50,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:50,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361807533] [2023-12-20 02:43:50,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361807533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:50,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:50,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:43:50,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837036085] [2023-12-20 02:43:50,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:50,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:43:50,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:50,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:43:50,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:43:50,685 INFO L87 Difference]: Start difference. First operand 41027 states and 49538 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:51,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:51,066 INFO L93 Difference]: Finished difference Result 71373 states and 85873 transitions. [2023-12-20 02:43:51,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:43:51,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-20 02:43:51,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:51,131 INFO L225 Difference]: With dead ends: 71373 [2023-12-20 02:43:51,131 INFO L226 Difference]: Without dead ends: 62800 [2023-12-20 02:43:51,153 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 02:43:51,153 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 349 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:51,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 821 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:43:51,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62800 states. [2023-12-20 02:43:52,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62800 to 40964. [2023-12-20 02:43:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40964 states, 40963 states have (on average 1.2073822718062641) internal successors, (49458), 40963 states have internal predecessors, (49458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:53,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40964 states to 40964 states and 49458 transitions. [2023-12-20 02:43:53,152 INFO L78 Accepts]: Start accepts. Automaton has 40964 states and 49458 transitions. Word has length 98 [2023-12-20 02:43:53,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:53,153 INFO L495 AbstractCegarLoop]: Abstraction has 40964 states and 49458 transitions. [2023-12-20 02:43:53,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:53,153 INFO L276 IsEmpty]: Start isEmpty. Operand 40964 states and 49458 transitions. [2023-12-20 02:43:53,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:43:53,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:53,156 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:53,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 02:43:53,157 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 02:43:53,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:53,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1797443078, now seen corresponding path program 1 times [2023-12-20 02:43:53,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:53,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447980977] [2023-12-20 02:43:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:53,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:43:53,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:53,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447980977] [2023-12-20 02:43:53,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447980977] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:53,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:53,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:43:53,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236903230] [2023-12-20 02:43:53,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:53,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:43:53,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:53,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:43:53,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:43:53,359 INFO L87 Difference]: Start difference. First operand 40964 states and 49458 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:54,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:54,380 INFO L93 Difference]: Finished difference Result 88294 states and 106480 transitions. [2023-12-20 02:43:54,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 02:43:54,380 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-20 02:43:54,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:54,456 INFO L225 Difference]: With dead ends: 88294 [2023-12-20 02:43:54,456 INFO L226 Difference]: Without dead ends: 79752 [2023-12-20 02:43:54,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-12-20 02:43:54,466 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1531 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:54,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1786 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-20 02:43:54,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79752 states. [2023-12-20 02:43:54,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79752 to 40964. [2023-12-20 02:43:55,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40964 states, 40963 states have (on average 1.2073578595317727) internal successors, (49457), 40963 states have internal predecessors, (49457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:55,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40964 states to 40964 states and 49457 transitions. [2023-12-20 02:43:55,048 INFO L78 Accepts]: Start accepts. Automaton has 40964 states and 49457 transitions. Word has length 98 [2023-12-20 02:43:55,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:55,048 INFO L495 AbstractCegarLoop]: Abstraction has 40964 states and 49457 transitions. [2023-12-20 02:43:55,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 40964 states and 49457 transitions. [2023-12-20 02:43:55,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:43:55,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:55,052 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:55,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-20 02:43:55,052 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 02:43:55,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:55,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1894287537, now seen corresponding path program 1 times [2023-12-20 02:43:55,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:55,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962143887] [2023-12-20 02:43:55,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:55,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:55,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:55,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962143887] [2023-12-20 02:43:55,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962143887] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:55,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468516366] [2023-12-20 02:43:55,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:55,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:55,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:55,425 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 02:43:55,432 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 02:43:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:55,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-20 02:43:55,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:56,175 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:56,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:43:56,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468516366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:56,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:43:56,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 20 [2023-12-20 02:43:56,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465344239] [2023-12-20 02:43:56,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:56,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:43:56,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:56,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:43:56,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:43:56,176 INFO L87 Difference]: Start difference. First operand 40964 states and 49457 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:56,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:56,629 INFO L93 Difference]: Finished difference Result 56419 states and 68271 transitions. [2023-12-20 02:43:56,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 02:43:56,629 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-20 02:43:56,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:56,671 INFO L225 Difference]: With dead ends: 56419 [2023-12-20 02:43:56,671 INFO L226 Difference]: Without dead ends: 47262 [2023-12-20 02:43:56,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2023-12-20 02:43:56,685 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 788 mSDsluCounter, 3255 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:56,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 3810 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:43:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47262 states. [2023-12-20 02:43:57,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47262 to 45607. [2023-12-20 02:43:57,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45607 states, 45606 states have (on average 1.2079770205674691) internal successors, (55091), 45606 states have internal predecessors, (55091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:57,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45607 states to 45607 states and 55091 transitions. [2023-12-20 02:43:57,124 INFO L78 Accepts]: Start accepts. Automaton has 45607 states and 55091 transitions. Word has length 99 [2023-12-20 02:43:57,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:57,124 INFO L495 AbstractCegarLoop]: Abstraction has 45607 states and 55091 transitions. [2023-12-20 02:43:57,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:57,125 INFO L276 IsEmpty]: Start isEmpty. Operand 45607 states and 55091 transitions. [2023-12-20 02:43:57,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:43:57,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:57,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:57,133 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 02:43:57,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:57,330 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 02:43:57,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:57,330 INFO L85 PathProgramCache]: Analyzing trace with hash 734740885, now seen corresponding path program 1 times [2023-12-20 02:43:57,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:57,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310415515] [2023-12-20 02:43:57,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:57,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:43:57,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:57,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310415515] [2023-12-20 02:43:57,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310415515] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:57,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:57,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:43:57,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609429792] [2023-12-20 02:43:57,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:57,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:43:57,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:57,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:43:57,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:43:57,377 INFO L87 Difference]: Start difference. First operand 45607 states and 55091 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:57,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:57,653 INFO L93 Difference]: Finished difference Result 84845 states and 102948 transitions. [2023-12-20 02:43:57,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:43:57,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-20 02:43:57,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:57,698 INFO L225 Difference]: With dead ends: 84845 [2023-12-20 02:43:57,698 INFO L226 Difference]: Without dead ends: 44750 [2023-12-20 02:43:57,723 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 02:43:57,723 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 312 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:57,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 313 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:43:57,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44750 states. [2023-12-20 02:43:58,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44750 to 44750. [2023-12-20 02:43:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44750 states, 44749 states have (on average 1.193702652573242) internal successors, (53417), 44749 states have internal predecessors, (53417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:58,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44750 states to 44750 states and 53417 transitions. [2023-12-20 02:43:58,265 INFO L78 Accepts]: Start accepts. Automaton has 44750 states and 53417 transitions. Word has length 99 [2023-12-20 02:43:58,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:58,265 INFO L495 AbstractCegarLoop]: Abstraction has 44750 states and 53417 transitions. [2023-12-20 02:43:58,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:58,265 INFO L276 IsEmpty]: Start isEmpty. Operand 44750 states and 53417 transitions. [2023-12-20 02:43:58,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:43:58,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:58,269 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:58,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-20 02:43:58,269 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 02:43:58,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:58,269 INFO L85 PathProgramCache]: Analyzing trace with hash -133707616, now seen corresponding path program 1 times [2023-12-20 02:43:58,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:58,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159362981] [2023-12-20 02:43:58,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:58,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:58,763 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:58,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:58,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159362981] [2023-12-20 02:43:58,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159362981] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:58,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745416415] [2023-12-20 02:43:58,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:58,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:58,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:58,768 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 02:43:58,788 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 02:43:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:58,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 02:43:58,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:59,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:59,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:43:59,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745416415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:59,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:43:59,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [9] total 18 [2023-12-20 02:43:59,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132699273] [2023-12-20 02:43:59,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:59,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:43:59,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:59,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:43:59,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:43:59,362 INFO L87 Difference]: Start difference. First operand 44750 states and 53417 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:59,763 INFO L93 Difference]: Finished difference Result 52119 states and 62194 transitions. [2023-12-20 02:43:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 02:43:59,763 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 02:43:59,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:59,801 INFO L225 Difference]: With dead ends: 52119 [2023-12-20 02:43:59,802 INFO L226 Difference]: Without dead ends: 43125 [2023-12-20 02:43:59,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:43:59,817 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 867 mSDsluCounter, 2884 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 3351 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:59,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 3351 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:43:59,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43125 states. [2023-12-20 02:44:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43125 to 42351. [2023-12-20 02:44:00,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42351 states, 42350 states have (on average 1.1915230224321134) internal successors, (50461), 42350 states have internal predecessors, (50461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:00,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42351 states to 42351 states and 50461 transitions. [2023-12-20 02:44:00,260 INFO L78 Accepts]: Start accepts. Automaton has 42351 states and 50461 transitions. Word has length 100 [2023-12-20 02:44:00,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:00,260 INFO L495 AbstractCegarLoop]: Abstraction has 42351 states and 50461 transitions. [2023-12-20 02:44:00,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:00,260 INFO L276 IsEmpty]: Start isEmpty. Operand 42351 states and 50461 transitions. [2023-12-20 02:44:00,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:44:00,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:00,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:00,270 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 02:44:00,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-12-20 02:44:00,464 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 02:44:00,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:00,465 INFO L85 PathProgramCache]: Analyzing trace with hash 769491174, now seen corresponding path program 1 times [2023-12-20 02:44:00,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:00,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087221380] [2023-12-20 02:44:00,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:00,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:00,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:00,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087221380] [2023-12-20 02:44:00,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087221380] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:00,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166654488] [2023-12-20 02:44:00,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:00,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:00,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:00,803 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 02:44:00,822 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 02:44:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:01,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-20 02:44:01,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:01,672 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:44:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:02,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166654488] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:44:02,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:44:02,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2023-12-20 02:44:02,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423897067] [2023-12-20 02:44:02,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:44:02,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-20 02:44:02,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:02,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-20 02:44:02,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2023-12-20 02:44:02,125 INFO L87 Difference]: Start difference. First operand 42351 states and 50461 transitions. Second operand has 22 states, 22 states have (on average 10.863636363636363) internal successors, (239), 22 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:05,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:05,385 INFO L93 Difference]: Finished difference Result 125098 states and 149375 transitions. [2023-12-20 02:44:05,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-20 02:44:05,386 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.863636363636363) internal successors, (239), 22 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have 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 02:44:05,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:05,643 INFO L225 Difference]: With dead ends: 125098 [2023-12-20 02:44:05,643 INFO L226 Difference]: Without dead ends: 120446 [2023-12-20 02:44:05,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 186 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 02:44:05,671 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 3825 mSDsluCounter, 5020 mSDsCounter, 0 mSdLazyCounter, 4255 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 SdHoareTripleChecker+Valid, 5443 SdHoareTripleChecker+Invalid, 4297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 4255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:05,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3825 Valid, 5443 Invalid, 4297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 4255 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-20 02:44:05,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120446 states. [2023-12-20 02:44:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120446 to 42297. [2023-12-20 02:44:06,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42297 states, 42296 states have (on average 1.1915311140533384) internal successors, (50397), 42296 states have internal predecessors, (50397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:06,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42297 states to 42297 states and 50397 transitions. [2023-12-20 02:44:06,495 INFO L78 Accepts]: Start accepts. Automaton has 42297 states and 50397 transitions. Word has length 100 [2023-12-20 02:44:06,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:06,495 INFO L495 AbstractCegarLoop]: Abstraction has 42297 states and 50397 transitions. [2023-12-20 02:44:06,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.863636363636363) internal successors, (239), 22 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:06,496 INFO L276 IsEmpty]: Start isEmpty. Operand 42297 states and 50397 transitions. [2023-12-20 02:44:06,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:44:06,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:06,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:06,505 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 02:44:06,700 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 02:44:06,701 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 02:44:06,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:06,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1794353597, now seen corresponding path program 1 times [2023-12-20 02:44:06,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:06,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713338013] [2023-12-20 02:44:06,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:06,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:07,648 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:07,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:07,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713338013] [2023-12-20 02:44:07,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713338013] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:07,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509336358] [2023-12-20 02:44:07,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:07,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:07,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:07,652 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 02:44:07,680 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 02:44:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:07,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:44:07,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:08,373 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:08,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:44:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:08,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509336358] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:44:08,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:44:08,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 10] total 35 [2023-12-20 02:44:08,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009668235] [2023-12-20 02:44:08,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:44:08,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-20 02:44:08,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:08,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-20 02:44:08,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1084, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:44:08,807 INFO L87 Difference]: Start difference. First operand 42297 states and 50397 transitions. Second operand has 35 states, 35 states have (on average 7.514285714285714) internal successors, (263), 35 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:14,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:14,672 INFO L93 Difference]: Finished difference Result 116319 states and 138629 transitions. [2023-12-20 02:44:14,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2023-12-20 02:44:14,672 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 7.514285714285714) internal successors, (263), 35 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 02:44:14,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:14,777 INFO L225 Difference]: With dead ends: 116319 [2023-12-20 02:44:14,777 INFO L226 Difference]: Without dead ends: 111562 [2023-12-20 02:44:14,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3325 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1716, Invalid=10716, Unknown=0, NotChecked=0, Total=12432 [2023-12-20 02:44:14,788 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 4720 mSDsluCounter, 16514 mSDsCounter, 0 mSdLazyCounter, 4810 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4720 SdHoareTripleChecker+Valid, 17336 SdHoareTripleChecker+Invalid, 4852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 4810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:14,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4720 Valid, 17336 Invalid, 4852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 4810 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-20 02:44:14,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111562 states. [2023-12-20 02:44:15,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111562 to 42281. [2023-12-20 02:44:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42281 states, 42280 states have (on average 1.1915089877010407) internal successors, (50377), 42280 states have internal predecessors, (50377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:15,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42281 states to 42281 states and 50377 transitions. [2023-12-20 02:44:15,471 INFO L78 Accepts]: Start accepts. Automaton has 42281 states and 50377 transitions. Word has length 100 [2023-12-20 02:44:15,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:15,471 INFO L495 AbstractCegarLoop]: Abstraction has 42281 states and 50377 transitions. [2023-12-20 02:44:15,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.514285714285714) internal successors, (263), 35 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:15,471 INFO L276 IsEmpty]: Start isEmpty. Operand 42281 states and 50377 transitions. [2023-12-20 02:44:15,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:44:15,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:15,475 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:15,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-20 02:44:15,675 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,SelfDestructingSolverStorable51 [2023-12-20 02:44:15,676 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 02:44:15,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:15,676 INFO L85 PathProgramCache]: Analyzing trace with hash -309915064, now seen corresponding path program 1 times [2023-12-20 02:44:15,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:15,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23816581] [2023-12-20 02:44:15,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:15,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:15,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:15,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23816581] [2023-12-20 02:44:15,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23816581] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:15,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313363120] [2023-12-20 02:44:15,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:15,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:15,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:15,987 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 02:44:16,011 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 02:44:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:16,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:44:16,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:16,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:44:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:17,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313363120] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:44:17,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:44:17,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2023-12-20 02:44:17,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886416165] [2023-12-20 02:44:17,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:44:17,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-20 02:44:17,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:17,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-20 02:44:17,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:44:17,189 INFO L87 Difference]: Start difference. First operand 42281 states and 50377 transitions. Second operand has 28 states, 28 states have (on average 9.821428571428571) internal successors, (275), 28 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:40,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:40,165 INFO L93 Difference]: Finished difference Result 135974 states and 161271 transitions. [2023-12-20 02:44:40,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2023-12-20 02:44:40,165 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.821428571428571) internal successors, (275), 28 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have 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 02:44:40,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:40,322 INFO L225 Difference]: With dead ends: 135974 [2023-12-20 02:44:40,323 INFO L226 Difference]: Without dead ends: 131167 [2023-12-20 02:44:40,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 343 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51191 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=16484, Invalid=102196, Unknown=0, NotChecked=0, Total=118680 [2023-12-20 02:44:40,357 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 12268 mSDsluCounter, 7373 mSDsCounter, 0 mSdLazyCounter, 7102 mSolverCounterSat, 308 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12268 SdHoareTripleChecker+Valid, 7809 SdHoareTripleChecker+Invalid, 7410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 7102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:40,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12268 Valid, 7809 Invalid, 7410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 7102 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-20 02:44:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131167 states. [2023-12-20 02:44:41,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131167 to 42152. [2023-12-20 02:44:41,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42152 states, 42151 states have (on average 1.1916206021209461) internal successors, (50228), 42151 states have internal predecessors, (50228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:41,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42152 states to 42152 states and 50228 transitions. [2023-12-20 02:44:41,097 INFO L78 Accepts]: Start accepts. Automaton has 42152 states and 50228 transitions. Word has length 100 [2023-12-20 02:44:41,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:41,097 INFO L495 AbstractCegarLoop]: Abstraction has 42152 states and 50228 transitions. [2023-12-20 02:44:41,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.821428571428571) internal successors, (275), 28 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:41,097 INFO L276 IsEmpty]: Start isEmpty. Operand 42152 states and 50228 transitions. [2023-12-20 02:44:41,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:44:41,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:41,335 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:41,346 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 02:44:41,535 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,SelfDestructingSolverStorable52 [2023-12-20 02:44:41,536 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 02:44:41,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:41,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1118671453, now seen corresponding path program 1 times [2023-12-20 02:44:41,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:41,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487130452] [2023-12-20 02:44:41,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:41,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:41,973 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:41,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:41,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487130452] [2023-12-20 02:44:41,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487130452] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:41,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294581982] [2023-12-20 02:44:41,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:41,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:41,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:41,975 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 02:44:41,978 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 02:44:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:42,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 02:44:42,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:42,553 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:42,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:44:42,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294581982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:42,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:44:42,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2023-12-20 02:44:42,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961619534] [2023-12-20 02:44:42,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:42,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:44:42,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:42,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:44:42,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:44:42,554 INFO L87 Difference]: Start difference. First operand 42152 states and 50228 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:43,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:43,140 INFO L93 Difference]: Finished difference Result 58214 states and 69412 transitions. [2023-12-20 02:44:43,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 02:44:43,141 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 02:44:43,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:43,178 INFO L225 Difference]: With dead ends: 58214 [2023-12-20 02:44:43,179 INFO L226 Difference]: Without dead ends: 46674 [2023-12-20 02:44:43,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=650, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:44:43,191 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 885 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:43,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 3399 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:44:43,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46674 states. [2023-12-20 02:44:43,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46674 to 45394. [2023-12-20 02:44:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45394 states, 45393 states have (on average 1.1900513295001431) internal successors, (54020), 45393 states have internal predecessors, (54020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45394 states to 45394 states and 54020 transitions. [2023-12-20 02:44:43,567 INFO L78 Accepts]: Start accepts. Automaton has 45394 states and 54020 transitions. Word has length 100 [2023-12-20 02:44:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:43,568 INFO L495 AbstractCegarLoop]: Abstraction has 45394 states and 54020 transitions. [2023-12-20 02:44:43,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:43,568 INFO L276 IsEmpty]: Start isEmpty. Operand 45394 states and 54020 transitions. [2023-12-20 02:44:43,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 02:44:43,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:43,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:43,578 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 02:44:43,772 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,SelfDestructingSolverStorable53 [2023-12-20 02:44:43,773 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 02:44:43,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:43,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1655762067, now seen corresponding path program 1 times [2023-12-20 02:44:43,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:43,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090551747] [2023-12-20 02:44:43,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:43,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:44,728 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:44,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:44,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090551747] [2023-12-20 02:44:44,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090551747] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:44,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899912535] [2023-12-20 02:44:44,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:44,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:44,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:44,729 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 02:44:44,731 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 02:44:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:44,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:44:44,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:45,694 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:45,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:44:45,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899912535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:45,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:44:45,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 25 [2023-12-20 02:44:45,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754546746] [2023-12-20 02:44:45,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:45,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:44:45,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:45,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:44:45,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2023-12-20 02:44:45,696 INFO L87 Difference]: Start difference. First operand 45394 states and 54020 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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 02:44:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:46,460 INFO L93 Difference]: Finished difference Result 60759 states and 72434 transitions. [2023-12-20 02:44:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:44:46,460 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-20 02:44:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:46,503 INFO L225 Difference]: With dead ends: 60759 [2023-12-20 02:44:46,503 INFO L226 Difference]: Without dead ends: 48092 [2023-12-20 02:44:46,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=152, Invalid=1108, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 02:44:46,520 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 1494 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 3170 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:46,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 3170 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:44:46,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48092 states. [2023-12-20 02:44:46,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48092 to 42664. [2023-12-20 02:44:46,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42664 states, 42663 states have (on average 1.1870942034081053) internal successors, (50645), 42663 states have internal predecessors, (50645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:46,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42664 states to 42664 states and 50645 transitions. [2023-12-20 02:44:46,873 INFO L78 Accepts]: Start accepts. Automaton has 42664 states and 50645 transitions. Word has length 101 [2023-12-20 02:44:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:46,873 INFO L495 AbstractCegarLoop]: Abstraction has 42664 states and 50645 transitions. [2023-12-20 02:44:46,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 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 02:44:46,873 INFO L276 IsEmpty]: Start isEmpty. Operand 42664 states and 50645 transitions. [2023-12-20 02:44:46,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 02:44:46,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:46,877 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:46,881 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 02:44:47,077 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,SelfDestructingSolverStorable54 [2023-12-20 02:44:47,077 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 02:44:47,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:47,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1821556779, now seen corresponding path program 1 times [2023-12-20 02:44:47,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:47,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634299346] [2023-12-20 02:44:47,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:47,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:47,730 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:47,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:47,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634299346] [2023-12-20 02:44:47,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634299346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:47,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:44:47,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 02:44:47,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793409913] [2023-12-20 02:44:47,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:47,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:44:47,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:47,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:44:47,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:44:47,732 INFO L87 Difference]: Start difference. First operand 42664 states and 50645 transitions. Second operand has 16 states, 16 states have (on average 6.3125) internal successors, (101), 15 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 02:44:48,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:48,827 INFO L93 Difference]: Finished difference Result 81901 states and 97697 transitions. [2023-12-20 02:44:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 02:44:48,828 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-20 02:44:48,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:48,904 INFO L225 Difference]: With dead ends: 81901 [2023-12-20 02:44:48,904 INFO L226 Difference]: Without dead ends: 77184 [2023-12-20 02:44:48,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:44:48,924 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 2440 mSDsluCounter, 4922 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 5519 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:48,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 5519 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1196 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:44:48,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77184 states. [2023-12-20 02:44:49,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77184 to 40229. [2023-12-20 02:44:49,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40229 states, 40228 states have (on average 1.1859898578104802) internal successors, (47710), 40228 states have internal predecessors, (47710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40229 states to 40229 states and 47710 transitions. [2023-12-20 02:44:49,532 INFO L78 Accepts]: Start accepts. Automaton has 40229 states and 47710 transitions. Word has length 101 [2023-12-20 02:44:49,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:49,532 INFO L495 AbstractCegarLoop]: Abstraction has 40229 states and 47710 transitions. [2023-12-20 02:44:49,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.3125) internal successors, (101), 15 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 02:44:49,532 INFO L276 IsEmpty]: Start isEmpty. Operand 40229 states and 47710 transitions. [2023-12-20 02:44:49,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 02:44:49,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:49,536 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:49,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-20 02:44:49,536 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 02:44:49,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:49,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2071541257, now seen corresponding path program 1 times [2023-12-20 02:44:49,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:49,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548079889] [2023-12-20 02:44:49,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:49,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:44:50,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:50,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548079889] [2023-12-20 02:44:50,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548079889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:50,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:44:50,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 02:44:50,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615462831] [2023-12-20 02:44:50,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:50,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:44:50,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:50,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:44:50,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:44:50,090 INFO L87 Difference]: Start difference. First operand 40229 states and 47710 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:51,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:51,215 INFO L93 Difference]: Finished difference Result 90008 states and 107154 transitions. [2023-12-20 02:44:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:44:51,220 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-20 02:44:51,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:51,307 INFO L225 Difference]: With dead ends: 90008 [2023-12-20 02:44:51,307 INFO L226 Difference]: Without dead ends: 85690 [2023-12-20 02:44:51,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=221, Invalid=535, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:44:51,332 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 2131 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:51,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2131 Valid, 2831 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:44:51,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85690 states. [2023-12-20 02:44:51,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85690 to 40135. [2023-12-20 02:44:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40135 states, 40134 states have (on average 1.1861513928340062) internal successors, (47605), 40134 states have internal predecessors, (47605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:51,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40135 states to 40135 states and 47605 transitions. [2023-12-20 02:44:51,993 INFO L78 Accepts]: Start accepts. Automaton has 40135 states and 47605 transitions. Word has length 101 [2023-12-20 02:44:51,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:51,993 INFO L495 AbstractCegarLoop]: Abstraction has 40135 states and 47605 transitions. [2023-12-20 02:44:51,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:51,994 INFO L276 IsEmpty]: Start isEmpty. Operand 40135 states and 47605 transitions. [2023-12-20 02:44:51,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:44:51,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:51,997 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:51,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-20 02:44:51,997 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 02:44:51,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:51,998 INFO L85 PathProgramCache]: Analyzing trace with hash 741383522, now seen corresponding path program 1 times [2023-12-20 02:44:51,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:51,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456492088] [2023-12-20 02:44:51,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:51,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:52,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:52,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456492088] [2023-12-20 02:44:52,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456492088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:52,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:44:52,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-20 02:44:52,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219438224] [2023-12-20 02:44:52,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:52,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-20 02:44:52,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:52,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-20 02:44:52,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:44:52,769 INFO L87 Difference]: Start difference. First operand 40135 states and 47605 transitions. Second operand has 20 states, 20 states have (on average 5.1) internal successors, (102), 19 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 02:44:54,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:54,892 INFO L93 Difference]: Finished difference Result 102662 states and 122268 transitions. [2023-12-20 02:44:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-12-20 02:44:54,892 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 19 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 02:44:54,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:55,006 INFO L225 Difference]: With dead ends: 102662 [2023-12-20 02:44:55,006 INFO L226 Difference]: Without dead ends: 98418 [2023-12-20 02:44:55,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=437, Invalid=2013, Unknown=0, NotChecked=0, Total=2450 [2023-12-20 02:44:55,033 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 1823 mSDsluCounter, 8107 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 8763 SdHoareTripleChecker+Invalid, 2221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:55,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 8763 Invalid, 2221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:44:55,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98418 states. [2023-12-20 02:44:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98418 to 40116. [2023-12-20 02:44:55,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40116 states, 40115 states have (on average 1.1861149196061325) internal successors, (47581), 40115 states have internal predecessors, (47581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:55,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40116 states to 40116 states and 47581 transitions. [2023-12-20 02:44:55,708 INFO L78 Accepts]: Start accepts. Automaton has 40116 states and 47581 transitions. Word has length 102 [2023-12-20 02:44:55,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:55,708 INFO L495 AbstractCegarLoop]: Abstraction has 40116 states and 47581 transitions. [2023-12-20 02:44:55,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.1) internal successors, (102), 19 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 02:44:55,708 INFO L276 IsEmpty]: Start isEmpty. Operand 40116 states and 47581 transitions. [2023-12-20 02:44:55,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:44:55,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:55,711 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:55,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-12-20 02:44:55,712 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 02:44:55,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:55,712 INFO L85 PathProgramCache]: Analyzing trace with hash 416496655, now seen corresponding path program 1 times [2023-12-20 02:44:55,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:55,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132852808] [2023-12-20 02:44:55,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:55,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:56,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:56,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132852808] [2023-12-20 02:44:56,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132852808] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:56,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617608931] [2023-12-20 02:44:56,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:56,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:56,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:56,386 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 02:44:56,409 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 02:44:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:56,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-20 02:44:56,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:57,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:57,401 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:44:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:58,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617608931] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:44:58,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:44:58,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 38 [2023-12-20 02:44:58,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349944962] [2023-12-20 02:44:58,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:44:58,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-12-20 02:44:58,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:58,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-12-20 02:44:58,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1285, Unknown=0, NotChecked=0, Total=1406 [2023-12-20 02:44:58,222 INFO L87 Difference]: Start difference. First operand 40116 states and 47581 transitions. Second operand has 38 states, 38 states have (on average 7.684210526315789) internal successors, (292), 38 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:36,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:36,990 INFO L93 Difference]: Finished difference Result 167066 states and 196355 transitions. [2023-12-20 02:48:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1642 states. [2023-12-20 02:48:36,991 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.684210526315789) internal successors, (292), 38 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 02:48:36,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:37,160 INFO L225 Difference]: With dead ends: 167066 [2023-12-20 02:48:37,161 INFO L226 Difference]: Without dead ends: 138537 [2023-12-20 02:48:37,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1856 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1676 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371323 ImplicationChecksByTransitivity, 204.5s TimeCoverageRelationStatistics Valid=135032, Invalid=2678974, Unknown=0, NotChecked=0, Total=2814006 [2023-12-20 02:48:37,354 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 52472 mSDsluCounter, 11301 mSDsCounter, 0 mSdLazyCounter, 11114 mSolverCounterSat, 1616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52472 SdHoareTripleChecker+Valid, 11892 SdHoareTripleChecker+Invalid, 12730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1616 IncrementalHoareTripleChecker+Valid, 11114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:37,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52472 Valid, 11892 Invalid, 12730 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1616 Valid, 11114 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-12-20 02:48:37,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138537 states. [2023-12-20 02:48:38,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138537 to 49276. [2023-12-20 02:48:38,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49276 states, 49275 states have (on average 1.182283105022831) internal successors, (58257), 49275 states have internal predecessors, (58257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:38,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49276 states to 49276 states and 58257 transitions. [2023-12-20 02:48:38,443 INFO L78 Accepts]: Start accepts. Automaton has 49276 states and 58257 transitions. Word has length 102 [2023-12-20 02:48:38,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:38,443 INFO L495 AbstractCegarLoop]: Abstraction has 49276 states and 58257 transitions. [2023-12-20 02:48:38,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.684210526315789) internal successors, (292), 38 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:38,443 INFO L276 IsEmpty]: Start isEmpty. Operand 49276 states and 58257 transitions. [2023-12-20 02:48:38,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:48:38,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:38,447 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:38,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-20 02:48:38,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:38,648 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 02:48:38,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:38,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1680563399, now seen corresponding path program 1 times [2023-12-20 02:48:38,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:38,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899804350] [2023-12-20 02:48:38,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:38,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:38,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:48:38,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:38,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899804350] [2023-12-20 02:48:38,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899804350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:38,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:38,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-20 02:48:38,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038323877] [2023-12-20 02:48:38,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:38,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:48:38,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:38,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:48:38,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-20 02:48:38,858 INFO L87 Difference]: Start difference. First operand 49276 states and 58257 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 02:48:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:40,015 INFO L93 Difference]: Finished difference Result 97288 states and 115369 transitions. [2023-12-20 02:48:40,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:48:40,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 104 [2023-12-20 02:48:40,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:40,100 INFO L225 Difference]: With dead ends: 97288 [2023-12-20 02:48:40,100 INFO L226 Difference]: Without dead ends: 84412 [2023-12-20 02:48:40,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:48:40,127 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 1753 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:40,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 2092 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1655 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:48:40,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84412 states. [2023-12-20 02:48:40,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84412 to 49276. [2023-12-20 02:48:40,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49276 states, 49275 states have (on average 1.1822425164890917) internal successors, (58255), 49275 states have internal predecessors, (58255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:40,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49276 states to 49276 states and 58255 transitions. [2023-12-20 02:48:40,860 INFO L78 Accepts]: Start accepts. Automaton has 49276 states and 58255 transitions. Word has length 104 [2023-12-20 02:48:40,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:40,860 INFO L495 AbstractCegarLoop]: Abstraction has 49276 states and 58255 transitions. [2023-12-20 02:48:40,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 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 02:48:40,860 INFO L276 IsEmpty]: Start isEmpty. Operand 49276 states and 58255 transitions. [2023-12-20 02:48:40,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:48:40,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:40,864 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:40,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-20 02:48:40,864 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 02:48:40,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:40,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1681839944, now seen corresponding path program 1 times [2023-12-20 02:48:40,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:40,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619552768] [2023-12-20 02:48:40,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:40,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:41,404 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:41,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:41,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619552768] [2023-12-20 02:48:41,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619552768] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:41,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587896684] [2023-12-20 02:48:41,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:41,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:41,406 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:41,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-20 02:48:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:41,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-20 02:48:41,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:48:43,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:48:43,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587896684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:43,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:48:43,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [13] total 31 [2023-12-20 02:48:43,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817958247] [2023-12-20 02:48:43,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:43,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-20 02:48:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:43,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-20 02:48:43,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=868, Unknown=0, NotChecked=0, Total=992 [2023-12-20 02:48:43,586 INFO L87 Difference]: Start difference. First operand 49276 states and 58255 transitions. Second operand has 20 states, 20 states have (on average 5.0) internal successors, (100), 19 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:45,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:45,298 INFO L93 Difference]: Finished difference Result 59262 states and 70057 transitions. [2023-12-20 02:48:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:48:45,299 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 19 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:48:45,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:45,357 INFO L225 Difference]: With dead ends: 59262 [2023-12-20 02:48:45,358 INFO L226 Difference]: Without dead ends: 55620 [2023-12-20 02:48:45,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=190, Invalid=1216, Unknown=0, NotChecked=0, Total=1406 [2023-12-20 02:48:45,374 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 887 mSDsluCounter, 4985 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 5531 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:45,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 5531 Invalid, 2092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:48:45,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55620 states. [2023-12-20 02:48:45,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55620 to 49104. [2023-12-20 02:48:45,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49104 states, 49103 states have (on average 1.1822902877624586) internal successors, (58054), 49103 states have internal predecessors, (58054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49104 states to 49104 states and 58054 transitions. [2023-12-20 02:48:45,853 INFO L78 Accepts]: Start accepts. Automaton has 49104 states and 58054 transitions. Word has length 105 [2023-12-20 02:48:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:45,853 INFO L495 AbstractCegarLoop]: Abstraction has 49104 states and 58054 transitions. [2023-12-20 02:48:45,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 19 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 49104 states and 58054 transitions. [2023-12-20 02:48:45,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:48:45,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:45,857 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:45,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-20 02:48:46,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:46,058 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:46,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:46,058 INFO L85 PathProgramCache]: Analyzing trace with hash -365432092, now seen corresponding path program 1 times [2023-12-20 02:48:46,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:46,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959053650] [2023-12-20 02:48:46,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:46,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:46,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:46,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959053650] [2023-12-20 02:48:46,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959053650] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:46,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714364229] [2023-12-20 02:48:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:46,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:46,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:46,540 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:46,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-20 02:48:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:46,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:48:46,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:47,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:48:47,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714364229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:47,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:48:47,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 23 [2023-12-20 02:48:47,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45803315] [2023-12-20 02:48:47,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:47,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:48:47,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:47,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:48:47,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:48:47,239 INFO L87 Difference]: Start difference. First operand 49104 states and 58054 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 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 02:48:47,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:47,783 INFO L93 Difference]: Finished difference Result 60003 states and 71013 transitions. [2023-12-20 02:48:47,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:48:47,784 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 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 02:48:47,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:47,830 INFO L225 Difference]: With dead ends: 60003 [2023-12-20 02:48:47,830 INFO L226 Difference]: Without dead ends: 50384 [2023-12-20 02:48:47,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:48:47,846 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 931 mSDsluCounter, 3390 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 3890 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:47,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [931 Valid, 3890 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:48:47,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50384 states. [2023-12-20 02:48:48,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50384 to 49104. [2023-12-20 02:48:48,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49104 states, 49103 states have (on average 1.1817200578376066) internal successors, (58026), 49103 states have internal predecessors, (58026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:48,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49104 states to 49104 states and 58026 transitions. [2023-12-20 02:48:48,349 INFO L78 Accepts]: Start accepts. Automaton has 49104 states and 58026 transitions. Word has length 106 [2023-12-20 02:48:48,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:48,349 INFO L495 AbstractCegarLoop]: Abstraction has 49104 states and 58026 transitions. [2023-12-20 02:48:48,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 11 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 02:48:48,349 INFO L276 IsEmpty]: Start isEmpty. Operand 49104 states and 58026 transitions. [2023-12-20 02:48:48,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:48,355 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:48,355 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-20 02:48:48,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-20 02:48:48,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:48,561 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:48,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:48,561 INFO L85 PathProgramCache]: Analyzing trace with hash -491381848, now seen corresponding path program 1 times [2023-12-20 02:48:48,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:48,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049576759] [2023-12-20 02:48:48,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:48,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:48:48,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:48,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049576759] [2023-12-20 02:48:48,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049576759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:48:48,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:48:48,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:48:48,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46961395] [2023-12-20 02:48:48,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:48:48,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:48:48,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:48,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:48:48,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:48:48,607 INFO L87 Difference]: Start difference. First operand 49104 states and 58026 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:48,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:48:48,746 INFO L93 Difference]: Finished difference Result 70424 states and 83515 transitions. [2023-12-20 02:48:48,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:48:48,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:48:48,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:48:48,767 INFO L225 Difference]: With dead ends: 70424 [2023-12-20 02:48:48,767 INFO L226 Difference]: Without dead ends: 23199 [2023-12-20 02:48:48,788 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 02:48:48,789 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 143 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:48:48,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 558 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:48:48,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23199 states. [2023-12-20 02:48:49,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23199 to 23177. [2023-12-20 02:48:49,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23177 states, 23176 states have (on average 1.1712547462892648) internal successors, (27145), 23176 states have internal predecessors, (27145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:49,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23177 states to 23177 states and 27145 transitions. [2023-12-20 02:48:49,186 INFO L78 Accepts]: Start accepts. Automaton has 23177 states and 27145 transitions. Word has length 107 [2023-12-20 02:48:49,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:48:49,187 INFO L495 AbstractCegarLoop]: Abstraction has 23177 states and 27145 transitions. [2023-12-20 02:48:49,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:48:49,187 INFO L276 IsEmpty]: Start isEmpty. Operand 23177 states and 27145 transitions. [2023-12-20 02:48:49,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:48:49,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:48:49,189 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:48:49,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-12-20 02:48:49,189 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2023-12-20 02:48:49,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:48:49,190 INFO L85 PathProgramCache]: Analyzing trace with hash 462465288, now seen corresponding path program 1 times [2023-12-20 02:48:49,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:48:49,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687120563] [2023-12-20 02:48:49,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:49,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:48:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:49,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:49,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:48:49,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687120563] [2023-12-20 02:48:49,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687120563] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:48:49,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300953740] [2023-12-20 02:48:49,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:48:49,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:48:49,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:48:49,462 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:48:49,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-20 02:48:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:48:49,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:48:49,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:48:50,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:50,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:48:50,690 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:48:50,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300953740] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:48:50,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:48:50,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 28 [2023-12-20 02:48:50,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790383382] [2023-12-20 02:48:50,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:48:50,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-20 02:48:50,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:48:50,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-20 02:48:50,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:48:50,692 INFO L87 Difference]: Start difference. First operand 23177 states and 27145 transitions. Second operand has 28 states, 28 states have (on average 10.571428571428571) internal successors, (296), 28 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)