/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:22:12,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:22:12,929 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:22:12,935 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:22:12,935 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:22:12,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:22:12,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:22:12,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:22:12,969 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:22:12,969 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:22:12,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:22:12,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:22:12,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:22:12,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:22:12,971 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:22:12,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:22:12,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:22:12,979 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:22:12,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:22:12,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:22:12,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:22:12,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:22:12,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:22:12,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:22:12,981 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:22:12,981 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:22:12,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:22:12,982 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:22:12,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:22:12,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:22:12,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:22:12,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:22:12,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:22:12,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:22:12,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:22:12,985 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:22:12,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:22:12,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:22:12,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:22:12,985 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:22:12,985 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:22:12,986 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:22:12,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:22:12,986 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:22:13,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:22:13,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:22:13,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:22:13,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:22:13,258 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:22:13,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-16 06:22:14,512 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:22:14,943 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:22:14,944 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-16 06:22:14,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b13f917d/1b70a00c96f44ffa8f3ff12aa1d9317a/FLAGd9c42a445 [2023-12-16 06:22:14,988 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b13f917d/1b70a00c96f44ffa8f3ff12aa1d9317a [2023-12-16 06:22:14,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:22:14,992 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:22:14,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:22:14,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:22:14,997 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:22:14,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:22:14" (1/1) ... [2023-12-16 06:22:14,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788d1d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:14, skipping insertion in model container [2023-12-16 06:22:14,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:22:14" (1/1) ... [2023-12-16 06:22:15,105 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:22:15,473 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2023-12-16 06:22:15,519 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2023-12-16 06:22:15,532 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2023-12-16 06:22:15,538 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2023-12-16 06:22:15,555 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2023-12-16 06:22:15,561 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2023-12-16 06:22:15,605 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2023-12-16 06:22:16,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:22:16,082 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:22:16,137 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[11898,11911] [2023-12-16 06:22:16,161 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18616,18629] [2023-12-16 06:22:16,167 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[20814,20827] [2023-12-16 06:22:16,171 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21891,21904] [2023-12-16 06:22:16,179 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25244,25257] [2023-12-16 06:22:16,183 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26324,26337] [2023-12-16 06:22:16,188 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.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[28553,28566] [2023-12-16 06:22:16,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:22:16,415 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:22:16,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16 WrapperNode [2023-12-16 06:22:16,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:22:16,417 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:22:16,417 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:22:16,417 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:22:16,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,619 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7036 [2023-12-16 06:22:16,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:22:16,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:22:16,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:22:16,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:22:16,630 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,650 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,717 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]. [2023-12-16 06:22:16,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:22:16,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:22:16,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:22:16,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:22:16,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (1/1) ... [2023-12-16 06:22:16,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:22:16,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:22:16,907 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) [2023-12-16 06:22:16,926 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 [2023-12-16 06:22:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:22:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:22:16,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:22:16,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:22:17,309 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:22:17,312 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:22:20,257 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:22:20,334 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:22:20,334 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:22:20,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:22:20 BoogieIcfgContainer [2023-12-16 06:22:20,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:22:20,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:22:20,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:22:20,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:22:20,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:22:14" (1/3) ... [2023-12-16 06:22:20,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8218fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:22:20, skipping insertion in model container [2023-12-16 06:22:20,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:22:16" (2/3) ... [2023-12-16 06:22:20,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8218fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:22:20, skipping insertion in model container [2023-12-16 06:22:20,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:22:20" (3/3) ... [2023-12-16 06:22:20,346 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-16 06:22:20,362 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:22:20,362 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-12-16 06:22:20,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:22:20,444 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;@6d65c9f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:22:20,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-12-16 06:22:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 1100 states, 1092 states have (on average 1.8891941391941391) internal successors, (2063), 1099 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:22:20,472 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:20,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:20,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:20,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:20,478 INFO L85 PathProgramCache]: Analyzing trace with hash -966255617, now seen corresponding path program 1 times [2023-12-16 06:22:20,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:20,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27022853] [2023-12-16 06:22:20,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:20,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:21,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:21,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:21,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27022853] [2023-12-16 06:22:21,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27022853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:21,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:21,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:21,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52534242] [2023-12-16 06:22:21,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:21,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:21,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:21,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:21,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:21,092 INFO L87 Difference]: Start difference. First operand has 1100 states, 1092 states have (on average 1.8891941391941391) internal successors, (2063), 1099 states have internal predecessors, (2063), 0 states have call successors, (0), 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 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:21,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:21,889 INFO L93 Difference]: Finished difference Result 1682 states and 3067 transitions. [2023-12-16 06:22:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:22:21,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-16 06:22:21,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:21,913 INFO L225 Difference]: With dead ends: 1682 [2023-12-16 06:22:21,913 INFO L226 Difference]: Without dead ends: 1061 [2023-12-16 06:22:21,921 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 [2023-12-16 06:22:21,924 INFO L413 NwaCegarLoop]: 1146 mSDtfsCounter, 5417 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5417 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:21,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5417 Valid, 1339 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:22:21,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2023-12-16 06:22:22,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1053. [2023-12-16 06:22:22,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 1046 states have (on average 1.3231357552581262) internal successors, (1384), 1052 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:22,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1384 transitions. [2023-12-16 06:22:22,056 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1384 transitions. Word has length 62 [2023-12-16 06:22:22,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:22,056 INFO L495 AbstractCegarLoop]: Abstraction has 1053 states and 1384 transitions. [2023-12-16 06:22:22,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:22,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1384 transitions. [2023-12-16 06:22:22,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:22:22,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:22,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:22,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:22:22,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:22,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:22,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1187989298, now seen corresponding path program 1 times [2023-12-16 06:22:22,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:22,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599801675] [2023-12-16 06:22:22,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:22,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:22,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:22,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:22,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599801675] [2023-12-16 06:22:22,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599801675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:22,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:22,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:22,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701311404] [2023-12-16 06:22:22,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:22,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:22,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:22,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:22,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:22,269 INFO L87 Difference]: Start difference. First operand 1053 states and 1384 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:22,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:22,387 INFO L93 Difference]: Finished difference Result 1620 states and 2222 transitions. [2023-12-16 06:22:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:22,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-16 06:22:22,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:22,392 INFO L225 Difference]: With dead ends: 1620 [2023-12-16 06:22:22,393 INFO L226 Difference]: Without dead ends: 1336 [2023-12-16 06:22:22,394 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 [2023-12-16 06:22:22,395 INFO L413 NwaCegarLoop]: 1169 mSDtfsCounter, 573 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:22,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 1941 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1336 states. [2023-12-16 06:22:22,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1336 to 1328. [2023-12-16 06:22:22,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 1321 states have (on average 1.3504920514761545) internal successors, (1784), 1327 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:22,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1784 transitions. [2023-12-16 06:22:22,426 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1784 transitions. Word has length 62 [2023-12-16 06:22:22,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:22,427 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 1784 transitions. [2023-12-16 06:22:22,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:22,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1784 transitions. [2023-12-16 06:22:22,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:22:22,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:22,430 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:22,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:22:22,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:22,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:22,439 INFO L85 PathProgramCache]: Analyzing trace with hash -369366517, now seen corresponding path program 1 times [2023-12-16 06:22:22,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:22,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820607610] [2023-12-16 06:22:22,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:22,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:22,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:22,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820607610] [2023-12-16 06:22:22,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820607610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:22,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:22,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:22,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021538529] [2023-12-16 06:22:22,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:22,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:22,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:22,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:22,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:22,530 INFO L87 Difference]: Start difference. First operand 1328 states and 1784 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:22,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:22,595 INFO L93 Difference]: Finished difference Result 2107 states and 2940 transitions. [2023-12-16 06:22:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:22,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-16 06:22:22,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:22,602 INFO L225 Difference]: With dead ends: 2107 [2023-12-16 06:22:22,602 INFO L226 Difference]: Without dead ends: 1608 [2023-12-16 06:22:22,603 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 [2023-12-16 06:22:22,604 INFO L413 NwaCegarLoop]: 1184 mSDtfsCounter, 707 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:22,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1846 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:22,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2023-12-16 06:22:22,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1598. [2023-12-16 06:22:22,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1591 states have (on average 1.365179132620993) internal successors, (2172), 1597 states have internal predecessors, (2172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2172 transitions. [2023-12-16 06:22:22,639 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2172 transitions. Word has length 62 [2023-12-16 06:22:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:22,640 INFO L495 AbstractCegarLoop]: Abstraction has 1598 states and 2172 transitions. [2023-12-16 06:22:22,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2172 transitions. [2023-12-16 06:22:22,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:22:22,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:22,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:22,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:22:22,644 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:22,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:22,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1656441469, now seen corresponding path program 1 times [2023-12-16 06:22:22,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:22,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814554413] [2023-12-16 06:22:22,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:22,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:22,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:22,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:22,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814554413] [2023-12-16 06:22:22,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814554413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:22,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:22,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984100411] [2023-12-16 06:22:22,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:22,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:22,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:22,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:22,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:22,767 INFO L87 Difference]: Start difference. First operand 1598 states and 2172 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:23,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:23,250 INFO L93 Difference]: Finished difference Result 3396 states and 4762 transitions. [2023-12-16 06:22:23,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:22:23,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-16 06:22:23,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:23,258 INFO L225 Difference]: With dead ends: 3396 [2023-12-16 06:22:23,259 INFO L226 Difference]: Without dead ends: 2045 [2023-12-16 06:22:23,263 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 [2023-12-16 06:22:23,268 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 3182 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3182 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:23,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3182 Valid, 733 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:22:23,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2023-12-16 06:22:23,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2037. [2023-12-16 06:22:23,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2037 states, 2030 states have (on average 1.4133004926108375) internal successors, (2869), 2036 states have internal predecessors, (2869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2869 transitions. [2023-12-16 06:22:23,315 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2869 transitions. Word has length 62 [2023-12-16 06:22:23,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:23,317 INFO L495 AbstractCegarLoop]: Abstraction has 2037 states and 2869 transitions. [2023-12-16 06:22:23,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:23,318 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2869 transitions. [2023-12-16 06:22:23,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 06:22:23,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:23,321 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] [2023-12-16 06:22:23,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:22:23,322 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:23,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:23,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1951931054, now seen corresponding path program 1 times [2023-12-16 06:22:23,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:23,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277235042] [2023-12-16 06:22:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:23,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:23,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:23,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277235042] [2023-12-16 06:22:23,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277235042] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:23,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:23,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:23,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714577157] [2023-12-16 06:22:23,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:23,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:23,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:23,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:23,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:23,396 INFO L87 Difference]: Start difference. First operand 2037 states and 2869 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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) [2023-12-16 06:22:23,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:23,439 INFO L93 Difference]: Finished difference Result 4150 states and 5929 transitions. [2023-12-16 06:22:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:23,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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 [2023-12-16 06:22:23,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:23,450 INFO L225 Difference]: With dead ends: 4150 [2023-12-16 06:22:23,450 INFO L226 Difference]: Without dead ends: 2829 [2023-12-16 06:22:23,452 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 [2023-12-16 06:22:23,453 INFO L413 NwaCegarLoop]: 1185 mSDtfsCounter, 739 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:23,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 1820 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:23,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2023-12-16 06:22:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2815. [2023-12-16 06:22:23,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2808 states have (on average 1.3977920227920229) internal successors, (3925), 2814 states have internal predecessors, (3925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:23,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3925 transitions. [2023-12-16 06:22:23,544 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3925 transitions. Word has length 63 [2023-12-16 06:22:23,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:23,545 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 3925 transitions. [2023-12-16 06:22:23,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 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) [2023-12-16 06:22:23,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3925 transitions. [2023-12-16 06:22:23,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 06:22:23,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:23,549 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] [2023-12-16 06:22:23,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:22:23,549 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:23,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:23,550 INFO L85 PathProgramCache]: Analyzing trace with hash 55124087, now seen corresponding path program 1 times [2023-12-16 06:22:23,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:23,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748582002] [2023-12-16 06:22:23,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:23,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:23,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:23,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748582002] [2023-12-16 06:22:23,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748582002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:23,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:23,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:23,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275734512] [2023-12-16 06:22:23,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:23,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:23,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:23,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:23,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:23,662 INFO L87 Difference]: Start difference. First operand 2815 states and 3925 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 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) [2023-12-16 06:22:24,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:24,134 INFO L93 Difference]: Finished difference Result 5755 states and 8123 transitions. [2023-12-16 06:22:24,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:22:24,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 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 [2023-12-16 06:22:24,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:24,152 INFO L225 Difference]: With dead ends: 5755 [2023-12-16 06:22:24,152 INFO L226 Difference]: Without dead ends: 3426 [2023-12-16 06:22:24,157 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 [2023-12-16 06:22:24,158 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 2665 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2665 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:24,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2665 Valid, 618 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:22:24,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3426 states. [2023-12-16 06:22:24,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3426 to 3409. [2023-12-16 06:22:24,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3409 states, 3402 states have (on average 1.3930041152263375) internal successors, (4739), 3408 states have internal predecessors, (4739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:24,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3409 states to 3409 states and 4739 transitions. [2023-12-16 06:22:24,234 INFO L78 Accepts]: Start accepts. Automaton has 3409 states and 4739 transitions. Word has length 63 [2023-12-16 06:22:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:24,235 INFO L495 AbstractCegarLoop]: Abstraction has 3409 states and 4739 transitions. [2023-12-16 06:22:24,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 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) [2023-12-16 06:22:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3409 states and 4739 transitions. [2023-12-16 06:22:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-16 06:22:24,239 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:24,239 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] [2023-12-16 06:22:24,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:22:24,239 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:24,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1411626804, now seen corresponding path program 1 times [2023-12-16 06:22:24,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:24,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493295022] [2023-12-16 06:22:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:24,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:24,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:24,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493295022] [2023-12-16 06:22:24,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493295022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:24,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:24,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:22:24,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268755284] [2023-12-16 06:22:24,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:24,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:22:24,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:24,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:22:24,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:22:24,473 INFO L87 Difference]: Start difference. First operand 3409 states and 4739 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2023-12-16 06:22:24,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:24,862 INFO L93 Difference]: Finished difference Result 8601 states and 12191 transitions. [2023-12-16 06:22:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:22:24,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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 [2023-12-16 06:22:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:24,880 INFO L225 Difference]: With dead ends: 8601 [2023-12-16 06:22:24,881 INFO L226 Difference]: Without dead ends: 5429 [2023-12-16 06:22:24,887 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 [2023-12-16 06:22:24,887 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 2453 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:24,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 590 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:22:24,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2023-12-16 06:22:25,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 5421. [2023-12-16 06:22:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5421 states, 5414 states have (on average 1.4154045068341337) internal successors, (7663), 5420 states have internal predecessors, (7663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:25,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5421 states to 5421 states and 7663 transitions. [2023-12-16 06:22:25,067 INFO L78 Accepts]: Start accepts. Automaton has 5421 states and 7663 transitions. Word has length 64 [2023-12-16 06:22:25,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:25,067 INFO L495 AbstractCegarLoop]: Abstraction has 5421 states and 7663 transitions. [2023-12-16 06:22:25,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 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) [2023-12-16 06:22:25,067 INFO L276 IsEmpty]: Start isEmpty. Operand 5421 states and 7663 transitions. [2023-12-16 06:22:25,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-16 06:22:25,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:25,072 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] [2023-12-16 06:22:25,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:22:25,072 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:25,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:25,073 INFO L85 PathProgramCache]: Analyzing trace with hash 257868933, now seen corresponding path program 1 times [2023-12-16 06:22:25,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:25,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053591018] [2023-12-16 06:22:25,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:25,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:25,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:25,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:25,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053591018] [2023-12-16 06:22:25,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053591018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:25,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:25,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:25,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558642398] [2023-12-16 06:22:25,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:25,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:25,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:25,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:25,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:25,174 INFO L87 Difference]: Start difference. First operand 5421 states and 7663 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:25,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:25,242 INFO L93 Difference]: Finished difference Result 11855 states and 16870 transitions. [2023-12-16 06:22:25,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:25,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-12-16 06:22:25,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:25,276 INFO L225 Difference]: With dead ends: 11855 [2023-12-16 06:22:25,276 INFO L226 Difference]: Without dead ends: 7451 [2023-12-16 06:22:25,284 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 [2023-12-16 06:22:25,286 INFO L413 NwaCegarLoop]: 830 mSDtfsCounter, 496 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:25,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1351 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:25,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7451 states. [2023-12-16 06:22:25,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7451 to 7416. [2023-12-16 06:22:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7416 states, 7409 states have (on average 1.3914158455931975) internal successors, (10309), 7415 states have internal predecessors, (10309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:25,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7416 states to 7416 states and 10309 transitions. [2023-12-16 06:22:25,454 INFO L78 Accepts]: Start accepts. Automaton has 7416 states and 10309 transitions. Word has length 65 [2023-12-16 06:22:25,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:25,454 INFO L495 AbstractCegarLoop]: Abstraction has 7416 states and 10309 transitions. [2023-12-16 06:22:25,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:25,454 INFO L276 IsEmpty]: Start isEmpty. Operand 7416 states and 10309 transitions. [2023-12-16 06:22:25,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 06:22:25,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:25,461 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] [2023-12-16 06:22:25,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:22:25,461 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:25,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash 868506865, now seen corresponding path program 1 times [2023-12-16 06:22:25,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:25,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050440640] [2023-12-16 06:22:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:25,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:25,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:25,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050440640] [2023-12-16 06:22:25,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050440640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:25,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:25,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436006928] [2023-12-16 06:22:25,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:25,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:25,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:25,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:25,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:25,618 INFO L87 Difference]: Start difference. First operand 7416 states and 10309 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-16 06:22:26,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:26,343 INFO L93 Difference]: Finished difference Result 25546 states and 36210 transitions. [2023-12-16 06:22:26,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:22:26,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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 [2023-12-16 06:22:26,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:26,396 INFO L225 Difference]: With dead ends: 25546 [2023-12-16 06:22:26,396 INFO L226 Difference]: Without dead ends: 22001 [2023-12-16 06:22:26,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:22:26,412 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 4463 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:26,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 1062 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 06:22:26,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22001 states. [2023-12-16 06:22:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22001 to 7444. [2023-12-16 06:22:26,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7444 states, 7437 states have (on average 1.391017883555197) internal successors, (10345), 7443 states have internal predecessors, (10345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:26,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7444 states to 7444 states and 10345 transitions. [2023-12-16 06:22:26,719 INFO L78 Accepts]: Start accepts. Automaton has 7444 states and 10345 transitions. Word has length 66 [2023-12-16 06:22:26,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:26,719 INFO L495 AbstractCegarLoop]: Abstraction has 7444 states and 10345 transitions. [2023-12-16 06:22:26,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-16 06:22:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 7444 states and 10345 transitions. [2023-12-16 06:22:26,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 06:22:26,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:26,728 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] [2023-12-16 06:22:26,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:22:26,728 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:26,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:26,729 INFO L85 PathProgramCache]: Analyzing trace with hash -115804627, now seen corresponding path program 1 times [2023-12-16 06:22:26,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:26,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582855269] [2023-12-16 06:22:26,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:26,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:26,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:26,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582855269] [2023-12-16 06:22:26,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582855269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:26,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:26,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:26,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101707545] [2023-12-16 06:22:26,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:26,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:26,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:26,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:26,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:26,886 INFO L87 Difference]: Start difference. First operand 7444 states and 10345 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-16 06:22:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:27,722 INFO L93 Difference]: Finished difference Result 28138 states and 40022 transitions. [2023-12-16 06:22:27,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:22:27,723 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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 [2023-12-16 06:22:27,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:27,782 INFO L225 Difference]: With dead ends: 28138 [2023-12-16 06:22:27,782 INFO L226 Difference]: Without dead ends: 25041 [2023-12-16 06:22:27,796 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 [2023-12-16 06:22:27,797 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 3354 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3354 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:27,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3354 Valid, 1234 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:22:27,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25041 states. [2023-12-16 06:22:28,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25041 to 7515. [2023-12-16 06:22:28,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7515 states, 7508 states have (on average 1.391049547149707) internal successors, (10444), 7514 states have internal predecessors, (10444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:28,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7515 states to 7515 states and 10444 transitions. [2023-12-16 06:22:28,095 INFO L78 Accepts]: Start accepts. Automaton has 7515 states and 10444 transitions. Word has length 66 [2023-12-16 06:22:28,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:28,095 INFO L495 AbstractCegarLoop]: Abstraction has 7515 states and 10444 transitions. [2023-12-16 06:22:28,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-16 06:22:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand 7515 states and 10444 transitions. [2023-12-16 06:22:28,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 06:22:28,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:28,103 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] [2023-12-16 06:22:28,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:22:28,103 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:28,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash 31518793, now seen corresponding path program 1 times [2023-12-16 06:22:28,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:28,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439309101] [2023-12-16 06:22:28,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:28,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:28,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:28,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:28,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439309101] [2023-12-16 06:22:28,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439309101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:28,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:28,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:28,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320202012] [2023-12-16 06:22:28,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:28,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:28,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:28,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:28,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:28,287 INFO L87 Difference]: Start difference. First operand 7515 states and 10444 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-16 06:22:29,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:29,008 INFO L93 Difference]: Finished difference Result 36676 states and 52252 transitions. [2023-12-16 06:22:29,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:22:29,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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 [2023-12-16 06:22:29,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:29,077 INFO L225 Difference]: With dead ends: 36676 [2023-12-16 06:22:29,077 INFO L226 Difference]: Without dead ends: 33133 [2023-12-16 06:22:29,094 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 [2023-12-16 06:22:29,095 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 5046 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5046 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:29,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5046 Valid, 1128 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 06:22:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33133 states. [2023-12-16 06:22:29,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33133 to 7583. [2023-12-16 06:22:29,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7583 states, 7576 states have (on average 1.3901795142555438) internal successors, (10532), 7582 states have internal predecessors, (10532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7583 states to 7583 states and 10532 transitions. [2023-12-16 06:22:29,446 INFO L78 Accepts]: Start accepts. Automaton has 7583 states and 10532 transitions. Word has length 66 [2023-12-16 06:22:29,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:29,446 INFO L495 AbstractCegarLoop]: Abstraction has 7583 states and 10532 transitions. [2023-12-16 06:22:29,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-16 06:22:29,447 INFO L276 IsEmpty]: Start isEmpty. Operand 7583 states and 10532 transitions. [2023-12-16 06:22:29,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-16 06:22:29,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:29,459 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] [2023-12-16 06:22:29,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:22:29,459 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:29,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:29,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1680186821, now seen corresponding path program 1 times [2023-12-16 06:22:29,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:29,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637720366] [2023-12-16 06:22:29,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:29,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:29,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:29,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:29,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637720366] [2023-12-16 06:22:29,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637720366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:29,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:29,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:29,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689727280] [2023-12-16 06:22:29,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:29,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:29,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:29,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:29,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:29,600 INFO L87 Difference]: Start difference. First operand 7583 states and 10532 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-16 06:22:30,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:30,426 INFO L93 Difference]: Finished difference Result 32607 states and 46381 transitions. [2023-12-16 06:22:30,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:22:30,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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 [2023-12-16 06:22:30,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:30,531 INFO L225 Difference]: With dead ends: 32607 [2023-12-16 06:22:30,531 INFO L226 Difference]: Without dead ends: 29246 [2023-12-16 06:22:30,603 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 [2023-12-16 06:22:30,604 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 4613 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4613 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:30,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4613 Valid, 1110 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:22:30,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29246 states. [2023-12-16 06:22:30,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29246 to 7712. [2023-12-16 06:22:30,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7712 states, 7705 states have (on average 1.3890979883192731) internal successors, (10703), 7711 states have internal predecessors, (10703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7712 states to 7712 states and 10703 transitions. [2023-12-16 06:22:30,931 INFO L78 Accepts]: Start accepts. Automaton has 7712 states and 10703 transitions. Word has length 66 [2023-12-16 06:22:30,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:30,932 INFO L495 AbstractCegarLoop]: Abstraction has 7712 states and 10703 transitions. [2023-12-16 06:22:30,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 6 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) [2023-12-16 06:22:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 7712 states and 10703 transitions. [2023-12-16 06:22:30,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:22:30,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:30,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:30,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:22:30,939 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:30,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:30,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1923868673, now seen corresponding path program 1 times [2023-12-16 06:22:30,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:30,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001864217] [2023-12-16 06:22:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:30,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:31,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:31,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:31,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001864217] [2023-12-16 06:22:31,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001864217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:31,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:31,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:22:31,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53927044] [2023-12-16 06:22:31,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:31,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:22:31,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:31,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:22:31,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:22:31,236 INFO L87 Difference]: Start difference. First operand 7712 states and 10703 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:32,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:32,191 INFO L93 Difference]: Finished difference Result 24009 states and 34215 transitions. [2023-12-16 06:22:32,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:22:32,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-16 06:22:32,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:32,221 INFO L225 Difference]: With dead ends: 24009 [2023-12-16 06:22:32,221 INFO L226 Difference]: Without dead ends: 19370 [2023-12-16 06:22:32,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:22:32,235 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 1965 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:32,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 2109 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 06:22:32,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19370 states. [2023-12-16 06:22:32,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19370 to 7703. [2023-12-16 06:22:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7703 states, 7696 states have (on average 1.3883835758835759) internal successors, (10685), 7702 states have internal predecessors, (10685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:32,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7703 states to 7703 states and 10685 transitions. [2023-12-16 06:22:32,452 INFO L78 Accepts]: Start accepts. Automaton has 7703 states and 10685 transitions. Word has length 67 [2023-12-16 06:22:32,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:32,452 INFO L495 AbstractCegarLoop]: Abstraction has 7703 states and 10685 transitions. [2023-12-16 06:22:32,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:32,453 INFO L276 IsEmpty]: Start isEmpty. Operand 7703 states and 10685 transitions. [2023-12-16 06:22:32,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:22:32,459 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:32,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:32,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:22:32,460 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:32,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:32,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1803782915, now seen corresponding path program 1 times [2023-12-16 06:22:32,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:32,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227086846] [2023-12-16 06:22:32,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:32,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:32,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:32,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227086846] [2023-12-16 06:22:32,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227086846] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:32,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:32,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:22:32,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049812519] [2023-12-16 06:22:32,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:32,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:22:32,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:32,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:22:32,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:22:32,722 INFO L87 Difference]: Start difference. First operand 7703 states and 10685 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:33,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:33,772 INFO L93 Difference]: Finished difference Result 24155 states and 34432 transitions. [2023-12-16 06:22:33,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:22:33,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-16 06:22:33,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:33,793 INFO L225 Difference]: With dead ends: 24155 [2023-12-16 06:22:33,793 INFO L226 Difference]: Without dead ends: 19486 [2023-12-16 06:22:33,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:22:33,805 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 2966 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2966 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:33,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2966 Valid, 2004 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 06:22:33,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19486 states. [2023-12-16 06:22:33,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19486 to 7679. [2023-12-16 06:22:33,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7679 states, 7672 states have (on average 1.387643378519291) internal successors, (10646), 7678 states have internal predecessors, (10646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:33,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7679 states to 7679 states and 10646 transitions. [2023-12-16 06:22:33,989 INFO L78 Accepts]: Start accepts. Automaton has 7679 states and 10646 transitions. Word has length 67 [2023-12-16 06:22:33,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:33,990 INFO L495 AbstractCegarLoop]: Abstraction has 7679 states and 10646 transitions. [2023-12-16 06:22:33,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7679 states and 10646 transitions. [2023-12-16 06:22:33,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:22:33,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:33,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:33,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:22:33,998 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:33,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:33,998 INFO L85 PathProgramCache]: Analyzing trace with hash -306757220, now seen corresponding path program 1 times [2023-12-16 06:22:33,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:33,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094759448] [2023-12-16 06:22:33,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:33,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:34,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:34,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094759448] [2023-12-16 06:22:34,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094759448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:34,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:34,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952154793] [2023-12-16 06:22:34,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:34,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:34,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:34,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:34,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:34,165 INFO L87 Difference]: Start difference. First operand 7679 states and 10646 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:34,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:34,922 INFO L93 Difference]: Finished difference Result 28356 states and 40298 transitions. [2023-12-16 06:22:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:22:34,922 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-16 06:22:34,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:34,953 INFO L225 Difference]: With dead ends: 28356 [2023-12-16 06:22:34,953 INFO L226 Difference]: Without dead ends: 25259 [2023-12-16 06:22:34,964 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 [2023-12-16 06:22:34,965 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 3338 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3338 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:34,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3338 Valid, 1235 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:22:34,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25259 states. [2023-12-16 06:22:35,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25259 to 7748. [2023-12-16 06:22:35,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7748 states, 7741 states have (on average 1.3878051931275028) internal successors, (10743), 7747 states have internal predecessors, (10743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:35,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7748 states to 7748 states and 10743 transitions. [2023-12-16 06:22:35,173 INFO L78 Accepts]: Start accepts. Automaton has 7748 states and 10743 transitions. Word has length 67 [2023-12-16 06:22:35,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:35,174 INFO L495 AbstractCegarLoop]: Abstraction has 7748 states and 10743 transitions. [2023-12-16 06:22:35,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:35,174 INFO L276 IsEmpty]: Start isEmpty. Operand 7748 states and 10743 transitions. [2023-12-16 06:22:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:22:35,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:35,182 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:35,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:22:35,182 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:35,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:35,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1173964284, now seen corresponding path program 1 times [2023-12-16 06:22:35,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:35,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743551743] [2023-12-16 06:22:35,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:35,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:35,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:35,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:35,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743551743] [2023-12-16 06:22:35,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743551743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:35,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:35,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 06:22:35,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942218219] [2023-12-16 06:22:35,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:35,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 06:22:35,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:35,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 06:22:35,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 06:22:35,489 INFO L87 Difference]: Start difference. First operand 7748 states and 10743 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:36,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:36,538 INFO L93 Difference]: Finished difference Result 24312 states and 34644 transitions. [2023-12-16 06:22:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 06:22:36,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-16 06:22:36,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:36,562 INFO L225 Difference]: With dead ends: 24312 [2023-12-16 06:22:36,562 INFO L226 Difference]: Without dead ends: 19419 [2023-12-16 06:22:36,569 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 [2023-12-16 06:22:36,570 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 2571 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2571 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 1549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:36,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2571 Valid, 2408 Invalid, 1549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 06:22:36,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19419 states. [2023-12-16 06:22:36,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19419 to 7613. [2023-12-16 06:22:36,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7613 states, 7606 states have (on average 1.3875887457270575) internal successors, (10554), 7612 states have internal predecessors, (10554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:36,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7613 states to 7613 states and 10554 transitions. [2023-12-16 06:22:36,720 INFO L78 Accepts]: Start accepts. Automaton has 7613 states and 10554 transitions. Word has length 67 [2023-12-16 06:22:36,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:36,721 INFO L495 AbstractCegarLoop]: Abstraction has 7613 states and 10554 transitions. [2023-12-16 06:22:36,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:36,721 INFO L276 IsEmpty]: Start isEmpty. Operand 7613 states and 10554 transitions. [2023-12-16 06:22:36,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-16 06:22:36,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:36,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:36,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:22:36,728 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:36,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:36,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1514144732, now seen corresponding path program 1 times [2023-12-16 06:22:36,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:36,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362784609] [2023-12-16 06:22:36,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:36,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:37,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:37,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:37,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362784609] [2023-12-16 06:22:37,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362784609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:37,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:37,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:37,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533263056] [2023-12-16 06:22:37,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:37,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:22:37,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:37,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:22:37,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:22:37,004 INFO L87 Difference]: Start difference. First operand 7613 states and 10554 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:37,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:37,857 INFO L93 Difference]: Finished difference Result 20856 states and 29578 transitions. [2023-12-16 06:22:37,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 06:22:37,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-12-16 06:22:37,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:37,879 INFO L225 Difference]: With dead ends: 20856 [2023-12-16 06:22:37,880 INFO L226 Difference]: Without dead ends: 15463 [2023-12-16 06:22:37,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:22:37,894 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 2516 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 1293 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:37,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 1851 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1293 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 06:22:37,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15463 states. [2023-12-16 06:22:38,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15463 to 7286. [2023-12-16 06:22:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7286 states, 7279 states have (on average 1.3863168017584833) internal successors, (10091), 7285 states have internal predecessors, (10091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:38,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7286 states to 7286 states and 10091 transitions. [2023-12-16 06:22:38,070 INFO L78 Accepts]: Start accepts. Automaton has 7286 states and 10091 transitions. Word has length 67 [2023-12-16 06:22:38,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:38,070 INFO L495 AbstractCegarLoop]: Abstraction has 7286 states and 10091 transitions. [2023-12-16 06:22:38,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:38,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7286 states and 10091 transitions. [2023-12-16 06:22:38,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 06:22:38,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:38,076 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] [2023-12-16 06:22:38,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:22:38,077 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:38,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:38,077 INFO L85 PathProgramCache]: Analyzing trace with hash -906901590, now seen corresponding path program 1 times [2023-12-16 06:22:38,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:38,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080133801] [2023-12-16 06:22:38,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:38,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:38,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:38,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080133801] [2023-12-16 06:22:38,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080133801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:38,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:38,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 06:22:38,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087627860] [2023-12-16 06:22:38,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:38,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 06:22:38,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:38,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 06:22:38,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 06:22:38,719 INFO L87 Difference]: Start difference. First operand 7286 states and 10091 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2023-12-16 06:22:39,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:39,763 INFO L93 Difference]: Finished difference Result 36643 states and 52525 transitions. [2023-12-16 06:22:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 06:22:39,764 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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 [2023-12-16 06:22:39,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:39,802 INFO L225 Difference]: With dead ends: 36643 [2023-12-16 06:22:39,802 INFO L226 Difference]: Without dead ends: 31715 [2023-12-16 06:22:39,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2023-12-16 06:22:39,817 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 4729 mSDsluCounter, 4552 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4729 SdHoareTripleChecker+Valid, 5513 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:39,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4729 Valid, 5513 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:22:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31715 states. [2023-12-16 06:22:40,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31715 to 6953. [2023-12-16 06:22:40,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6953 states, 6948 states have (on average 1.3890328151986182) internal successors, (9651), 6952 states have internal predecessors, (9651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6953 states to 6953 states and 9651 transitions. [2023-12-16 06:22:40,074 INFO L78 Accepts]: Start accepts. Automaton has 6953 states and 9651 transitions. Word has length 68 [2023-12-16 06:22:40,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:40,074 INFO L495 AbstractCegarLoop]: Abstraction has 6953 states and 9651 transitions. [2023-12-16 06:22:40,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 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) [2023-12-16 06:22:40,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6953 states and 9651 transitions. [2023-12-16 06:22:40,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 06:22:40,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:40,079 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] [2023-12-16 06:22:40,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:22:40,079 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:40,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:40,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1518478363, now seen corresponding path program 1 times [2023-12-16 06:22:40,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:40,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848235608] [2023-12-16 06:22:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:40,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:40,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:40,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:40,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848235608] [2023-12-16 06:22:40,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848235608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:40,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:40,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:22:40,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531362757] [2023-12-16 06:22:40,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:40,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:22:40,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:40,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:22:40,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:22:40,616 INFO L87 Difference]: Start difference. First operand 6953 states and 9651 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 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) [2023-12-16 06:22:41,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:41,263 INFO L93 Difference]: Finished difference Result 27771 states and 39761 transitions. [2023-12-16 06:22:41,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:22:41,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 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 [2023-12-16 06:22:41,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:41,295 INFO L225 Difference]: With dead ends: 27771 [2023-12-16 06:22:41,295 INFO L226 Difference]: Without dead ends: 22878 [2023-12-16 06:22:41,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-12-16 06:22:41,308 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 2903 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2903 SdHoareTripleChecker+Valid, 3658 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:41,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2903 Valid, 3658 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:22:41,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22878 states. [2023-12-16 06:22:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22878 to 6705. [2023-12-16 06:22:41,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6705 states, 6701 states have (on average 1.3866587076555739) internal successors, (9292), 6704 states have internal predecessors, (9292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:41,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6705 states to 6705 states and 9292 transitions. [2023-12-16 06:22:41,456 INFO L78 Accepts]: Start accepts. Automaton has 6705 states and 9292 transitions. Word has length 68 [2023-12-16 06:22:41,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:41,457 INFO L495 AbstractCegarLoop]: Abstraction has 6705 states and 9292 transitions. [2023-12-16 06:22:41,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 9 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) [2023-12-16 06:22:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 6705 states and 9292 transitions. [2023-12-16 06:22:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 06:22:41,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:41,460 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:41,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 06:22:41,461 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:41,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:41,461 INFO L85 PathProgramCache]: Analyzing trace with hash -289412261, now seen corresponding path program 1 times [2023-12-16 06:22:41,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:41,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231622573] [2023-12-16 06:22:41,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:41,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:42,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:42,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:42,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231622573] [2023-12-16 06:22:42,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231622573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:42,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:42,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 06:22:42,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644276407] [2023-12-16 06:22:42,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:42,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:22:42,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:42,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:22:42,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:22:42,085 INFO L87 Difference]: Start difference. First operand 6705 states and 9292 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 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) [2023-12-16 06:22:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:44,036 INFO L93 Difference]: Finished difference Result 56616 states and 81378 transitions. [2023-12-16 06:22:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-16 06:22:44,037 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 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 [2023-12-16 06:22:44,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:44,109 INFO L225 Difference]: With dead ends: 56616 [2023-12-16 06:22:44,109 INFO L226 Difference]: Without dead ends: 51824 [2023-12-16 06:22:44,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=1031, Unknown=0, NotChecked=0, Total=1332 [2023-12-16 06:22:44,131 INFO L413 NwaCegarLoop]: 783 mSDtfsCounter, 4529 mSDsluCounter, 7527 mSDsCounter, 0 mSdLazyCounter, 1611 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4529 SdHoareTripleChecker+Valid, 8310 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:44,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4529 Valid, 8310 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1611 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 06:22:44,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51824 states. [2023-12-16 06:22:44,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51824 to 6522. [2023-12-16 06:22:44,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6519 states have (on average 1.3891701181162754) internal successors, (9056), 6521 states have internal predecessors, (9056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:44,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 9056 transitions. [2023-12-16 06:22:44,506 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 9056 transitions. Word has length 68 [2023-12-16 06:22:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:44,507 INFO L495 AbstractCegarLoop]: Abstraction has 6522 states and 9056 transitions. [2023-12-16 06:22:44,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 12 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) [2023-12-16 06:22:44,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 9056 transitions. [2023-12-16 06:22:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-16 06:22:44,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:44,511 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] [2023-12-16 06:22:44,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 06:22:44,512 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:44,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1473571080, now seen corresponding path program 1 times [2023-12-16 06:22:44,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:44,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529414168] [2023-12-16 06:22:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:44,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:44,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:44,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529414168] [2023-12-16 06:22:44,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529414168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:44,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:44,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:44,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130018314] [2023-12-16 06:22:44,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:44,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:44,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:44,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:44,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:44,571 INFO L87 Difference]: Start difference. First operand 6522 states and 9056 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2023-12-16 06:22:44,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:44,670 INFO L93 Difference]: Finished difference Result 13255 states and 18685 transitions. [2023-12-16 06:22:44,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:44,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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 [2023-12-16 06:22:44,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:44,682 INFO L225 Difference]: With dead ends: 13255 [2023-12-16 06:22:44,682 INFO L226 Difference]: Without dead ends: 9244 [2023-12-16 06:22:44,688 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 [2023-12-16 06:22:44,689 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 367 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:44,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 504 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:44,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9244 states. [2023-12-16 06:22:44,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 9215. [2023-12-16 06:22:44,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9215 states, 9214 states have (on average 1.4152376817885826) internal successors, (13040), 9214 states have internal predecessors, (13040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:44,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9215 states to 9215 states and 13040 transitions. [2023-12-16 06:22:44,805 INFO L78 Accepts]: Start accepts. Automaton has 9215 states and 13040 transitions. Word has length 70 [2023-12-16 06:22:44,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:44,806 INFO L495 AbstractCegarLoop]: Abstraction has 9215 states and 13040 transitions. [2023-12-16 06:22:44,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 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) [2023-12-16 06:22:44,806 INFO L276 IsEmpty]: Start isEmpty. Operand 9215 states and 13040 transitions. [2023-12-16 06:22:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-16 06:22:44,818 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:44,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:44,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 06:22:44,818 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:44,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:44,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1512901918, now seen corresponding path program 1 times [2023-12-16 06:22:44,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:44,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494816439] [2023-12-16 06:22:44,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:44,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:44,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:44,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494816439] [2023-12-16 06:22:44,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494816439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:44,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:44,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:44,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985281790] [2023-12-16 06:22:44,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:44,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:22:44,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:44,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:22:44,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:22:44,930 INFO L87 Difference]: Start difference. First operand 9215 states and 13040 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:45,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:45,134 INFO L93 Difference]: Finished difference Result 47160 states and 68530 transitions. [2023-12-16 06:22:45,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:22:45,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-16 06:22:45,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:45,191 INFO L225 Difference]: With dead ends: 47160 [2023-12-16 06:22:45,192 INFO L226 Difference]: Without dead ends: 39571 [2023-12-16 06:22:45,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:22:45,216 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 2102 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:45,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2102 Valid, 1156 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:45,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39571 states. [2023-12-16 06:22:45,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39571 to 16802. [2023-12-16 06:22:45,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16802 states, 16801 states have (on average 1.4205702041545145) internal successors, (23867), 16801 states have internal predecessors, (23867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:45,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16802 states to 16802 states and 23867 transitions. [2023-12-16 06:22:45,808 INFO L78 Accepts]: Start accepts. Automaton has 16802 states and 23867 transitions. Word has length 83 [2023-12-16 06:22:45,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:45,808 INFO L495 AbstractCegarLoop]: Abstraction has 16802 states and 23867 transitions. [2023-12-16 06:22:45,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:45,808 INFO L276 IsEmpty]: Start isEmpty. Operand 16802 states and 23867 transitions. [2023-12-16 06:22:45,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 06:22:45,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:45,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:45,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 06:22:45,824 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:45,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:45,825 INFO L85 PathProgramCache]: Analyzing trace with hash -344328049, now seen corresponding path program 1 times [2023-12-16 06:22:45,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:45,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019565162] [2023-12-16 06:22:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:45,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:45,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:45,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019565162] [2023-12-16 06:22:45,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019565162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:45,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:45,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:45,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457826796] [2023-12-16 06:22:45,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:45,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:22:45,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:45,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:22:45,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:22:45,982 INFO L87 Difference]: Start difference. First operand 16802 states and 23867 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:46,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:46,236 INFO L93 Difference]: Finished difference Result 28596 states and 40586 transitions. [2023-12-16 06:22:46,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:22:46,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2023-12-16 06:22:46,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:46,264 INFO L225 Difference]: With dead ends: 28596 [2023-12-16 06:22:46,265 INFO L226 Difference]: Without dead ends: 19350 [2023-12-16 06:22:46,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:22:46,279 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 846 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:46,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1444 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:22:46,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19350 states. [2023-12-16 06:22:46,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19350 to 14256. [2023-12-16 06:22:46,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14256 states, 14255 states have (on average 1.4006313574184497) internal successors, (19966), 14255 states have internal predecessors, (19966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:46,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14256 states to 14256 states and 19966 transitions. [2023-12-16 06:22:46,509 INFO L78 Accepts]: Start accepts. Automaton has 14256 states and 19966 transitions. Word has length 84 [2023-12-16 06:22:46,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:46,509 INFO L495 AbstractCegarLoop]: Abstraction has 14256 states and 19966 transitions. [2023-12-16 06:22:46,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:46,509 INFO L276 IsEmpty]: Start isEmpty. Operand 14256 states and 19966 transitions. [2023-12-16 06:22:46,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:22:46,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:46,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:46,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 06:22:46,522 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:46,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:46,523 INFO L85 PathProgramCache]: Analyzing trace with hash -806089270, now seen corresponding path program 1 times [2023-12-16 06:22:46,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:46,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085088496] [2023-12-16 06:22:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:46,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:46,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:46,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085088496] [2023-12-16 06:22:46,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085088496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:46,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:46,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:46,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208575043] [2023-12-16 06:22:46,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:46,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:46,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:46,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:46,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:46,605 INFO L87 Difference]: Start difference. First operand 14256 states and 19966 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:46,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:46,677 INFO L93 Difference]: Finished difference Result 21479 states and 30130 transitions. [2023-12-16 06:22:46,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:46,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-16 06:22:46,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:46,695 INFO L225 Difference]: With dead ends: 21479 [2023-12-16 06:22:46,696 INFO L226 Difference]: Without dead ends: 12770 [2023-12-16 06:22:46,707 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 [2023-12-16 06:22:46,709 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 236 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:46,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 893 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:46,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12770 states. [2023-12-16 06:22:46,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12770 to 12768. [2023-12-16 06:22:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12768 states, 12767 states have (on average 1.3870133939061644) internal successors, (17708), 12767 states have internal predecessors, (17708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:46,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12768 states to 12768 states and 17708 transitions. [2023-12-16 06:22:46,884 INFO L78 Accepts]: Start accepts. Automaton has 12768 states and 17708 transitions. Word has length 85 [2023-12-16 06:22:46,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:46,884 INFO L495 AbstractCegarLoop]: Abstraction has 12768 states and 17708 transitions. [2023-12-16 06:22:46,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:46,884 INFO L276 IsEmpty]: Start isEmpty. Operand 12768 states and 17708 transitions. [2023-12-16 06:22:46,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 06:22:46,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:46,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:46,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 06:22:46,897 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:46,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:46,898 INFO L85 PathProgramCache]: Analyzing trace with hash 370256656, now seen corresponding path program 1 times [2023-12-16 06:22:46,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:46,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415289226] [2023-12-16 06:22:46,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:46,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:47,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:47,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:47,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415289226] [2023-12-16 06:22:47,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415289226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:47,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:47,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:47,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59207656] [2023-12-16 06:22:47,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:47,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:47,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:47,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:47,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:47,110 INFO L87 Difference]: Start difference. First operand 12768 states and 17708 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:47,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:47,232 INFO L93 Difference]: Finished difference Result 34624 states and 48490 transitions. [2023-12-16 06:22:47,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:47,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-16 06:22:47,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:47,263 INFO L225 Difference]: With dead ends: 34624 [2023-12-16 06:22:47,263 INFO L226 Difference]: Without dead ends: 23346 [2023-12-16 06:22:47,279 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 [2023-12-16 06:22:47,280 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 128 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:47,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 840 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:47,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23346 states. [2023-12-16 06:22:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23346 to 21912. [2023-12-16 06:22:47,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21912 states, 21911 states have (on average 1.3871571356852723) internal successors, (30394), 21911 states have internal predecessors, (30394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:47,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21912 states to 21912 states and 30394 transitions. [2023-12-16 06:22:47,585 INFO L78 Accepts]: Start accepts. Automaton has 21912 states and 30394 transitions. Word has length 85 [2023-12-16 06:22:47,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:47,586 INFO L495 AbstractCegarLoop]: Abstraction has 21912 states and 30394 transitions. [2023-12-16 06:22:47,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:47,586 INFO L276 IsEmpty]: Start isEmpty. Operand 21912 states and 30394 transitions. [2023-12-16 06:22:47,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 06:22:47,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:47,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:47,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 06:22:47,598 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:47,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:47,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1136394572, now seen corresponding path program 1 times [2023-12-16 06:22:47,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:47,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271134417] [2023-12-16 06:22:47,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:47,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:47,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:47,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271134417] [2023-12-16 06:22:47,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271134417] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:47,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:47,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:47,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900768010] [2023-12-16 06:22:47,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:47,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:47,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:47,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:47,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:47,751 INFO L87 Difference]: Start difference. First operand 21912 states and 30394 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:47,912 INFO L93 Difference]: Finished difference Result 30386 states and 42202 transitions. [2023-12-16 06:22:47,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:47,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-16 06:22:47,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:47,931 INFO L225 Difference]: With dead ends: 30386 [2023-12-16 06:22:47,932 INFO L226 Difference]: Without dead ends: 17906 [2023-12-16 06:22:47,945 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 [2023-12-16 06:22:47,946 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 227 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:47,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 908 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:47,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17906 states. [2023-12-16 06:22:48,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17906 to 17904. [2023-12-16 06:22:48,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17904 states, 17903 states have (on average 1.3771993520638999) internal successors, (24656), 17903 states have internal predecessors, (24656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17904 states to 17904 states and 24656 transitions. [2023-12-16 06:22:48,152 INFO L78 Accepts]: Start accepts. Automaton has 17904 states and 24656 transitions. Word has length 86 [2023-12-16 06:22:48,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:48,152 INFO L495 AbstractCegarLoop]: Abstraction has 17904 states and 24656 transitions. [2023-12-16 06:22:48,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:48,171 INFO L276 IsEmpty]: Start isEmpty. Operand 17904 states and 24656 transitions. [2023-12-16 06:22:48,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 06:22:48,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:48,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:48,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 06:22:48,194 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:48,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:48,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1946752819, now seen corresponding path program 1 times [2023-12-16 06:22:48,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:48,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359506006] [2023-12-16 06:22:48,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:48,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:48,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:48,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:48,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359506006] [2023-12-16 06:22:48,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359506006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:48,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:48,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:48,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269548274] [2023-12-16 06:22:48,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:48,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:48,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:48,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:48,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:48,310 INFO L87 Difference]: Start difference. First operand 17904 states and 24656 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:48,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:48,551 INFO L93 Difference]: Finished difference Result 49728 states and 68830 transitions. [2023-12-16 06:22:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:48,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2023-12-16 06:22:48,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:48,646 INFO L225 Difference]: With dead ends: 49728 [2023-12-16 06:22:48,646 INFO L226 Difference]: Without dead ends: 33266 [2023-12-16 06:22:48,674 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 [2023-12-16 06:22:48,674 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 116 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:48,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 822 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:48,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33266 states. [2023-12-16 06:22:49,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33266 to 31048. [2023-12-16 06:22:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31048 states, 31047 states have (on average 1.3701806937868393) internal successors, (42540), 31047 states have internal predecessors, (42540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31048 states to 31048 states and 42540 transitions. [2023-12-16 06:22:49,157 INFO L78 Accepts]: Start accepts. Automaton has 31048 states and 42540 transitions. Word has length 86 [2023-12-16 06:22:49,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:49,158 INFO L495 AbstractCegarLoop]: Abstraction has 31048 states and 42540 transitions. [2023-12-16 06:22:49,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:49,158 INFO L276 IsEmpty]: Start isEmpty. Operand 31048 states and 42540 transitions. [2023-12-16 06:22:49,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 06:22:49,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:49,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:49,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 06:22:49,167 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:49,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:49,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1207527962, now seen corresponding path program 1 times [2023-12-16 06:22:49,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:49,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718973322] [2023-12-16 06:22:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:49,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:49,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:49,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718973322] [2023-12-16 06:22:49,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718973322] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:49,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:49,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:49,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212503343] [2023-12-16 06:22:49,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:49,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:49,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:49,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:49,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:49,232 INFO L87 Difference]: Start difference. First operand 31048 states and 42540 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:49,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:49,363 INFO L93 Difference]: Finished difference Result 38012 states and 52148 transitions. [2023-12-16 06:22:49,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:49,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2023-12-16 06:22:49,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:49,398 INFO L225 Difference]: With dead ends: 38012 [2023-12-16 06:22:49,398 INFO L226 Difference]: Without dead ends: 25407 [2023-12-16 06:22:49,415 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 [2023-12-16 06:22:49,415 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 184 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:49,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 866 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:49,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25407 states. [2023-12-16 06:22:49,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25407 to 25405. [2023-12-16 06:22:49,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25405 states, 25404 states have (on average 1.367816091954023) internal successors, (34748), 25404 states have internal predecessors, (34748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:49,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25405 states to 25405 states and 34748 transitions. [2023-12-16 06:22:49,727 INFO L78 Accepts]: Start accepts. Automaton has 25405 states and 34748 transitions. Word has length 87 [2023-12-16 06:22:49,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:49,727 INFO L495 AbstractCegarLoop]: Abstraction has 25405 states and 34748 transitions. [2023-12-16 06:22:49,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 25405 states and 34748 transitions. [2023-12-16 06:22:49,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 06:22:49,733 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:49,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:49,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 06:22:49,734 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:49,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:49,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1794879483, now seen corresponding path program 1 times [2023-12-16 06:22:49,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:49,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175682573] [2023-12-16 06:22:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:49,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:49,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:49,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175682573] [2023-12-16 06:22:49,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175682573] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:49,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:49,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:49,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111421824] [2023-12-16 06:22:49,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:49,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:49,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:49,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:49,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:49,846 INFO L87 Difference]: Start difference. First operand 25405 states and 34748 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) [2023-12-16 06:22:50,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:50,051 INFO L93 Difference]: Finished difference Result 70577 states and 96686 transitions. [2023-12-16 06:22:50,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:50,051 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 [2023-12-16 06:22:50,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:50,124 INFO L225 Difference]: With dead ends: 70577 [2023-12-16 06:22:50,124 INFO L226 Difference]: Without dead ends: 46551 [2023-12-16 06:22:50,157 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 [2023-12-16 06:22:50,163 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 137 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:50,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 861 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:50,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46551 states. [2023-12-16 06:22:50,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46551 to 43125. [2023-12-16 06:22:50,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43125 states, 43124 states have (on average 1.3593358686578239) internal successors, (58620), 43124 states have internal predecessors, (58620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:51,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43125 states to 43125 states and 58620 transitions. [2023-12-16 06:22:51,027 INFO L78 Accepts]: Start accepts. Automaton has 43125 states and 58620 transitions. Word has length 88 [2023-12-16 06:22:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:51,027 INFO L495 AbstractCegarLoop]: Abstraction has 43125 states and 58620 transitions. [2023-12-16 06:22:51,027 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) [2023-12-16 06:22:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 43125 states and 58620 transitions. [2023-12-16 06:22:51,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 06:22:51,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:51,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:51,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 06:22:51,032 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:51,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash 851067157, now seen corresponding path program 1 times [2023-12-16 06:22:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:51,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732215114] [2023-12-16 06:22:51,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:51,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:51,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:51,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732215114] [2023-12-16 06:22:51,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732215114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:51,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:51,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:51,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673233175] [2023-12-16 06:22:51,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:51,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:51,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:51,158 INFO L87 Difference]: Start difference. First operand 43125 states and 58620 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) [2023-12-16 06:22:51,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:51,537 INFO L93 Difference]: Finished difference Result 122937 states and 167070 transitions. [2023-12-16 06:22:51,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:51,538 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 [2023-12-16 06:22:51,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:51,642 INFO L225 Difference]: With dead ends: 122937 [2023-12-16 06:22:51,642 INFO L226 Difference]: Without dead ends: 81191 [2023-12-16 06:22:51,883 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 [2023-12-16 06:22:51,883 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 103 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:51,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 809 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:51,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81191 states. [2023-12-16 06:22:52,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81191 to 75557. [2023-12-16 06:22:52,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75557 states, 75556 states have (on average 1.3504685266557255) internal successors, (102036), 75556 states have internal predecessors, (102036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:52,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75557 states to 75557 states and 102036 transitions. [2023-12-16 06:22:52,831 INFO L78 Accepts]: Start accepts. Automaton has 75557 states and 102036 transitions. Word has length 88 [2023-12-16 06:22:52,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:52,832 INFO L495 AbstractCegarLoop]: Abstraction has 75557 states and 102036 transitions. [2023-12-16 06:22:52,832 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) [2023-12-16 06:22:52,832 INFO L276 IsEmpty]: Start isEmpty. Operand 75557 states and 102036 transitions. [2023-12-16 06:22:52,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:22:52,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:52,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:52,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-16 06:22:52,836 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:52,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:52,837 INFO L85 PathProgramCache]: Analyzing trace with hash -760977791, now seen corresponding path program 1 times [2023-12-16 06:22:52,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:52,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568933185] [2023-12-16 06:22:52,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:52,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:53,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:53,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:53,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:53,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568933185] [2023-12-16 06:22:53,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568933185] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:53,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:53,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:53,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9287001] [2023-12-16 06:22:53,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:53,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:22:53,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:53,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:22:53,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:22:53,294 INFO L87 Difference]: Start difference. First operand 75557 states and 102036 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:53,787 INFO L93 Difference]: Finished difference Result 161537 states and 215020 transitions. [2023-12-16 06:22:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:22:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2023-12-16 06:22:53,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:54,199 INFO L225 Difference]: With dead ends: 161537 [2023-12-16 06:22:54,200 INFO L226 Difference]: Without dead ends: 161535 [2023-12-16 06:22:54,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:22:54,228 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 437 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:54,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 2084 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:22:54,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161535 states. [2023-12-16 06:22:55,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161535 to 81797. [2023-12-16 06:22:55,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81797 states, 81796 states have (on average 1.3237322118441) internal successors, (108276), 81796 states have internal predecessors, (108276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:55,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81797 states to 81797 states and 108276 transitions. [2023-12-16 06:22:55,581 INFO L78 Accepts]: Start accepts. Automaton has 81797 states and 108276 transitions. Word has length 90 [2023-12-16 06:22:55,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:55,581 INFO L495 AbstractCegarLoop]: Abstraction has 81797 states and 108276 transitions. [2023-12-16 06:22:55,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:55,581 INFO L276 IsEmpty]: Start isEmpty. Operand 81797 states and 108276 transitions. [2023-12-16 06:22:55,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 06:22:55,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:55,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:55,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-16 06:22:55,586 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:55,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:55,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1699029251, now seen corresponding path program 1 times [2023-12-16 06:22:55,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:55,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394255752] [2023-12-16 06:22:55,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:55,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:55,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:55,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394255752] [2023-12-16 06:22:55,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394255752] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:55,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:55,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:22:55,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985669225] [2023-12-16 06:22:55,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:55,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:22:55,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:55,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:22:55,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:22:55,887 INFO L87 Difference]: Start difference. First operand 81797 states and 108276 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:56,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:56,700 INFO L93 Difference]: Finished difference Result 204529 states and 270414 transitions. [2023-12-16 06:22:56,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:22:56,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2023-12-16 06:22:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:22:56,868 INFO L225 Difference]: With dead ends: 204529 [2023-12-16 06:22:56,868 INFO L226 Difference]: Without dead ends: 124111 [2023-12-16 06:22:56,904 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 [2023-12-16 06:22:56,905 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 323 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:22:56,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 546 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:22:56,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124111 states. [2023-12-16 06:22:58,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124111 to 123069. [2023-12-16 06:22:58,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123069 states, 123068 states have (on average 1.3051321220788508) internal successors, (160620), 123068 states have internal predecessors, (160620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:58,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123069 states to 123069 states and 160620 transitions. [2023-12-16 06:22:58,823 INFO L78 Accepts]: Start accepts. Automaton has 123069 states and 160620 transitions. Word has length 91 [2023-12-16 06:22:58,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:22:58,823 INFO L495 AbstractCegarLoop]: Abstraction has 123069 states and 160620 transitions. [2023-12-16 06:22:58,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand 123069 states and 160620 transitions. [2023-12-16 06:22:58,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 06:22:58,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:22:58,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:22:58,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-16 06:22:58,827 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:22:58,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:22:58,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1379911323, now seen corresponding path program 1 times [2023-12-16 06:22:58,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:22:58,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773166721] [2023-12-16 06:22:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:22:58,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:22:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:22:58,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:22:58,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:22:58,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773166721] [2023-12-16 06:22:58,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773166721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:22:58,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:22:58,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:22:58,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191417047] [2023-12-16 06:22:58,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:22:58,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:22:58,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:22:59,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:22:59,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:22:59,001 INFO L87 Difference]: Start difference. First operand 123069 states and 160620 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:22:59,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:22:59,807 INFO L93 Difference]: Finished difference Result 191799 states and 251385 transitions. [2023-12-16 06:22:59,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:22:59,808 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-16 06:22:59,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:23:00,013 INFO L225 Difference]: With dead ends: 191799 [2023-12-16 06:23:00,014 INFO L226 Difference]: Without dead ends: 164977 [2023-12-16 06:23:00,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:23:00,062 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 1470 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:23:00,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 1380 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:23:00,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164977 states. [2023-12-16 06:23:01,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164977 to 141401. [2023-12-16 06:23:01,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141401 states, 141400 states have (on average 1.3027157001414427) internal successors, (184204), 141400 states have internal predecessors, (184204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141401 states to 141401 states and 184204 transitions. [2023-12-16 06:23:02,502 INFO L78 Accepts]: Start accepts. Automaton has 141401 states and 184204 transitions. Word has length 92 [2023-12-16 06:23:02,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:23:02,502 INFO L495 AbstractCegarLoop]: Abstraction has 141401 states and 184204 transitions. [2023-12-16 06:23:02,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:23:02,503 INFO L276 IsEmpty]: Start isEmpty. Operand 141401 states and 184204 transitions. [2023-12-16 06:23:02,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 06:23:02,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:23:02,525 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:02,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-16 06:23:02,525 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-12-16 06:23:02,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:23:02,526 INFO L85 PathProgramCache]: Analyzing trace with hash -135962477, now seen corresponding path program 1 times [2023-12-16 06:23:02,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:23:02,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704337377] [2023-12-16 06:23:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:02,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:23:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:03,194 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:23:03,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:23:03,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704337377] [2023-12-16 06:23:03,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704337377] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:23:03,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155287247] [2023-12-16 06:23:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:23:03,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:23:03,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:23:03,197 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) [2023-12-16 06:23:03,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 06:23:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:23:03,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 06:23:03,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 06:23:04,611 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2023-12-16 06:23:04,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 06:23:04,646 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:23:04,649 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:23:04,822 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,SelfDestructingSolverStorable33 [2023-12-16 06:23:04,822 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 116 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 18 known predicates. [2023-12-16 06:23:04,824 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-12-16 06:23:04,824 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-12-16 06:23:04,824 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-12-16 06:23:04,825 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-12-16 06:23:04,825 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-12-16 06:23:04,825 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-12-16 06:23:04,827 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:23:04,830 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:23:04,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:23:04 BoogieIcfgContainer [2023-12-16 06:23:04,832 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:23:04,832 INFO L158 Benchmark]: Toolchain (without parser) took 49840.44ms. Allocated memory was 287.3MB in the beginning and 7.0GB in the end (delta: 6.7GB). Free memory was 229.0MB in the beginning and 5.3GB in the end (delta: -5.0GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 06:23:04,832 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:23:04,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1422.78ms. Allocated memory is still 287.3MB. Free memory was 228.6MB in the beginning and 174.4MB in the end (delta: 54.3MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2023-12-16 06:23:04,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 203.21ms. Allocated memory is still 287.3MB. Free memory was 174.4MB in the beginning and 146.7MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-16 06:23:04,833 INFO L158 Benchmark]: Boogie Preprocessor took 253.86ms. Allocated memory is still 287.3MB. Free memory was 146.7MB in the beginning and 121.0MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 06:23:04,834 INFO L158 Benchmark]: RCFGBuilder took 3459.61ms. Allocated memory was 287.3MB in the beginning and 467.7MB in the end (delta: 180.4MB). Free memory was 121.0MB in the beginning and 366.8MB in the end (delta: -245.8MB). Peak memory consumption was 78.7MB. Max. memory is 8.0GB. [2023-12-16 06:23:04,834 INFO L158 Benchmark]: TraceAbstraction took 44494.11ms. Allocated memory was 467.7MB in the beginning and 7.0GB in the end (delta: 6.6GB). Free memory was 366.3MB in the beginning and 5.3GB in the end (delta: -4.9GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 06:23:04,835 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 150.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1422.78ms. Allocated memory is still 287.3MB. Free memory was 228.6MB in the beginning and 174.4MB in the end (delta: 54.3MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 203.21ms. Allocated memory is still 287.3MB. Free memory was 174.4MB in the beginning and 146.7MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 253.86ms. Allocated memory is still 287.3MB. Free memory was 146.7MB in the beginning and 121.0MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * RCFGBuilder took 3459.61ms. Allocated memory was 287.3MB in the beginning and 467.7MB in the end (delta: 180.4MB). Free memory was 121.0MB in the beginning and 366.8MB in the end (delta: -245.8MB). Peak memory consumption was 78.7MB. Max. memory is 8.0GB. * TraceAbstraction took 44494.11ms. Allocated memory was 467.7MB in the beginning and 7.0GB in the end (delta: 6.6GB). Free memory was 366.3MB in the beginning and 5.3GB in the end (delta: -4.9GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 635]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 635). Cancelled while NwaCegarLoop was analyzing trace of length 116 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 18 known predicates. - TimeoutResultAtElement [Line: 1200]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1200). Cancelled while NwaCegarLoop was analyzing trace of length 116 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 18 known predicates. - TimeoutResultAtElement [Line: 1376]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1376). Cancelled while NwaCegarLoop was analyzing trace of length 116 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 18 known predicates. - TimeoutResultAtElement [Line: 1461]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1461). Cancelled while NwaCegarLoop was analyzing trace of length 116 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 18 known predicates. - TimeoutResultAtElement [Line: 1727]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1727). Cancelled while NwaCegarLoop was analyzing trace of length 116 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 18 known predicates. - TimeoutResultAtElement [Line: 1812]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1812). Cancelled while NwaCegarLoop was analyzing trace of length 116 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 18 known predicates. - TimeoutResultAtElement [Line: 1987]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1987). Cancelled while NwaCegarLoop was analyzing trace of length 116 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 18 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1100 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 44.4s, OverallIterations: 34, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 65901 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65901 mSDsluCounter, 54973 SdHoareTripleChecker+Invalid, 8.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34807 mSDsCounter, 982 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14850 IncrementalHoareTripleChecker+Invalid, 15832 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 982 mSolverCounterUnsat, 20166 mSDtfsCounter, 14850 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141401occurred in iteration=33, InterpolantAutomatonStates: 251, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.6s AutomataMinimizationTime, 33 MinimizatonAttempts, 371446 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 2421 NumberOfCodeBlocks, 2421 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 2388 ConstructedInterpolants, 0 QuantifiedInterpolants, 12061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 33 InterpolantComputations, 33 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown