/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 06:27:20,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 06:27:20,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 06:27:20,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 06:27:20,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 06:27:20,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 06:27:20,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 06:27:20,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 06:27:20,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 06:27:20,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 06:27:20,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 06:27:20,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 06:27:20,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 06:27:20,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 06:27:20,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 06:27:20,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 06:27:20,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 06:27:20,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 06:27:20,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 06:27:20,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 06:27:20,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 06:27:20,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 06:27:20,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 06:27:20,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 06:27:20,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-11 06:27:20,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 06:27:20,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 06:27:20,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 06:27:20,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 06:27:20,589 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 06:27:20,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 06:27:20,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 06:27:20,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 06:27:20,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 06:27:20,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 06:27:20,591 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 06:27:20,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 06:27:20,591 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 06:27:20,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 06:27:20,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 06:27:20,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 06:27:20,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 06:27:20,591 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 06:27:20,591 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 06:27:20,592 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 06:27:20,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 06:27:20,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 06:27:20,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 06:27:20,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 06:27:20,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 06:27:20,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:27:20,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 06:27:20,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 06:27:20,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 06:27:20,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 06:27:20,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 06:27:20,593 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 06:27:20,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 06:27:20,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 06:27:20,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 06:27:20,593 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 06:27:20,593 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 06:27:20,594 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 06:27:20,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 06:27:20,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 06:27:20,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 06:27:20,803 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 06:27:20,805 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 06:27:20,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-11 06:27:20,850 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b702671e/3787c0befefa455a9c7d9b41ebc3b394/FLAG82a257753 [2022-01-11 06:27:21,384 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 06:27:21,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-01-11 06:27:21,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b702671e/3787c0befefa455a9c7d9b41ebc3b394/FLAG82a257753 [2022-01-11 06:27:21,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b702671e/3787c0befefa455a9c7d9b41ebc3b394 [2022-01-11 06:27:21,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 06:27:21,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 06:27:21,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 06:27:21,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 06:27:21,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 06:27:21,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:27:21" (1/1) ... [2022-01-11 06:27:21,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185108a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:21, skipping insertion in model container [2022-01-11 06:27:21,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 06:27:21" (1/1) ... [2022-01-11 06:27:21,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 06:27:21,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 06:27:22,325 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31154,31167] [2022-01-11 06:27:22,337 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32044,32057] [2022-01-11 06:27:22,352 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33746,33759] [2022-01-11 06:27:22,363 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34636,34649] [2022-01-11 06:27:22,403 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37153,37166] [2022-01-11 06:27:22,414 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38046,38059] [2022-01-11 06:27:22,429 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39751,39764] [2022-01-11 06:27:22,447 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41028,41041] [2022-01-11 06:27:22,556 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55077,55090] [2022-01-11 06:27:22,578 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55970,55983] [2022-01-11 06:27:22,609 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57675,57688] [2022-01-11 06:27:22,641 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61876,61889] [2022-01-11 06:27:22,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:27:22,725 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 06:27:22,899 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31154,31167] [2022-01-11 06:27:22,907 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32044,32057] [2022-01-11 06:27:22,922 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33746,33759] [2022-01-11 06:27:22,932 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34636,34649] [2022-01-11 06:27:22,948 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37153,37166] [2022-01-11 06:27:22,956 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38046,38059] [2022-01-11 06:27:22,970 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39751,39764] [2022-01-11 06:27:22,982 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41028,41041] [2022-01-11 06:27:23,052 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55077,55090] [2022-01-11 06:27:23,061 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55970,55983] [2022-01-11 06:27:23,073 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57675,57688] [2022-01-11 06:27:23,106 WARN L230 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61876,61889] [2022-01-11 06:27:23,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 06:27:23,178 INFO L208 MainTranslator]: Completed translation [2022-01-11 06:27:23,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23 WrapperNode [2022-01-11 06:27:23,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 06:27:23,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 06:27:23,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 06:27:23,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 06:27:23,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,272 INFO L137 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3787 [2022-01-11 06:27:23,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 06:27:23,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 06:27:23,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 06:27:23,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 06:27:23,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 06:27:23,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 06:27:23,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 06:27:23,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 06:27:23,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (1/1) ... [2022-01-11 06:27:23,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 06:27:23,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 06:27:23,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 06:27:23,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 06:27:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 06:27:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 06:27:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 06:27:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 06:27:23,627 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 06:27:23,628 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 06:27:25,400 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 06:27:25,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 06:27:25,417 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-11 06:27:25,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:27:25 BoogieIcfgContainer [2022-01-11 06:27:25,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 06:27:25,423 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 06:27:25,423 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 06:27:25,424 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 06:27:25,426 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:27:25" (1/1) ... [2022-01-11 06:27:26,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:27:26 BasicIcfg [2022-01-11 06:27:26,481 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 06:27:26,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 06:27:26,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 06:27:26,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 06:27:26,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 06:27:21" (1/4) ... [2022-01-11 06:27:26,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554f7361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:27:26, skipping insertion in model container [2022-01-11 06:27:26,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 06:27:23" (2/4) ... [2022-01-11 06:27:26,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554f7361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 06:27:26, skipping insertion in model container [2022-01-11 06:27:26,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 06:27:25" (3/4) ... [2022-01-11 06:27:26,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@554f7361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 06:27:26, skipping insertion in model container [2022-01-11 06:27:26,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 06:27:26" (4/4) ... [2022-01-11 06:27:26,486 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.cTransformedIcfg [2022-01-11 06:27:26,490 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 06:27:26,490 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-01-11 06:27:26,518 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 06:27:26,522 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 06:27:26,522 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-01-11 06:27:26,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 913 states, 900 states have (on average 1.8355555555555556) internal successors, (1652), 912 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:26,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-01-11 06:27:26,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:26,557 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:26,558 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:26,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:26,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1516512343, now seen corresponding path program 1 times [2022-01-11 06:27:26,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:26,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925675566] [2022-01-11 06:27:26,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:26,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:27,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:27,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925675566] [2022-01-11 06:27:27,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925675566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:27,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:27,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:27,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855196633] [2022-01-11 06:27:27,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:27,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:27,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:27,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:27,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:27,242 INFO L87 Difference]: Start difference. First operand has 913 states, 900 states have (on average 1.8355555555555556) internal successors, (1652), 912 states have internal predecessors, (1652), 0 states have call successors, (0), 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 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:27,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:27,461 INFO L93 Difference]: Finished difference Result 2666 states and 4827 transitions. [2022-01-11 06:27:27,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:27:27,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2022-01-11 06:27:27,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:27,479 INFO L225 Difference]: With dead ends: 2666 [2022-01-11 06:27:27,479 INFO L226 Difference]: Without dead ends: 1794 [2022-01-11 06:27:27,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:27,487 INFO L933 BasicCegarLoop]: 2848 mSDtfsCounter, 3494 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3494 SdHoareTripleChecker+Valid, 4424 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:27,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3494 Valid, 4424 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:27,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2022-01-11 06:27:27,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1698. [2022-01-11 06:27:27,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1686 states have (on average 1.533214709371293) internal successors, (2585), 1697 states have internal predecessors, (2585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:27,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2585 transitions. [2022-01-11 06:27:27,577 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2585 transitions. Word has length 300 [2022-01-11 06:27:27,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:27,578 INFO L470 AbstractCegarLoop]: Abstraction has 1698 states and 2585 transitions. [2022-01-11 06:27:27,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:27,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2585 transitions. [2022-01-11 06:27:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-01-11 06:27:27,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:27,583 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:27,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 06:27:27,584 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:27,584 INFO L85 PathProgramCache]: Analyzing trace with hash -171257614, now seen corresponding path program 1 times [2022-01-11 06:27:27,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:27,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098656704] [2022-01-11 06:27:27,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:27,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:27,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:27,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098656704] [2022-01-11 06:27:27,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098656704] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:27,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:27,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:27:27,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177433885] [2022-01-11 06:27:27,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:27,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:27:27,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:27,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:27:27,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:27,870 INFO L87 Difference]: Start difference. First operand 1698 states and 2585 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:28,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:28,219 INFO L93 Difference]: Finished difference Result 6674 states and 10133 transitions. [2022-01-11 06:27:28,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:27:28,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 302 [2022-01-11 06:27:28,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:28,241 INFO L225 Difference]: With dead ends: 6674 [2022-01-11 06:27:28,241 INFO L226 Difference]: Without dead ends: 4988 [2022-01-11 06:27:28,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:27:28,246 INFO L933 BasicCegarLoop]: 3261 mSDtfsCounter, 3934 mSDsluCounter, 3914 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3934 SdHoareTripleChecker+Valid, 7175 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:28,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3934 Valid, 7175 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:28,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2022-01-11 06:27:28,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 3251. [2022-01-11 06:27:28,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 3239 states have (on average 1.5239271380055572) internal successors, (4936), 3250 states have internal predecessors, (4936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 4936 transitions. [2022-01-11 06:27:28,426 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 4936 transitions. Word has length 302 [2022-01-11 06:27:28,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:28,431 INFO L470 AbstractCegarLoop]: Abstraction has 3251 states and 4936 transitions. [2022-01-11 06:27:28,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:28,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 4936 transitions. [2022-01-11 06:27:28,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-01-11 06:27:28,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:28,437 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:28,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 06:27:28,438 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:28,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:28,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1811064025, now seen corresponding path program 1 times [2022-01-11 06:27:28,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:28,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151067693] [2022-01-11 06:27:28,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:28,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:28,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:28,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151067693] [2022-01-11 06:27:28,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151067693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:28,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:28,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:27:28,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063837193] [2022-01-11 06:27:28,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:28,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:27:28,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:28,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:27:28,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:27:28,550 INFO L87 Difference]: Start difference. First operand 3251 states and 4936 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:28,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:28,783 INFO L93 Difference]: Finished difference Result 9696 states and 14710 transitions. [2022-01-11 06:27:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:27:28,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2022-01-11 06:27:28,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:28,844 INFO L225 Difference]: With dead ends: 9696 [2022-01-11 06:27:28,845 INFO L226 Difference]: Without dead ends: 6474 [2022-01-11 06:27:28,850 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:27:28,851 INFO L933 BasicCegarLoop]: 2734 mSDtfsCounter, 1358 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 4099 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:28,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1358 Valid, 4099 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:27:28,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2022-01-11 06:27:28,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 3265. [2022-01-11 06:27:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3265 states, 3253 states have (on average 1.5225945281278819) internal successors, (4953), 3264 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3265 states to 3265 states and 4953 transitions. [2022-01-11 06:27:29,010 INFO L78 Accepts]: Start accepts. Automaton has 3265 states and 4953 transitions. Word has length 304 [2022-01-11 06:27:29,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:29,011 INFO L470 AbstractCegarLoop]: Abstraction has 3265 states and 4953 transitions. [2022-01-11 06:27:29,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3265 states and 4953 transitions. [2022-01-11 06:27:29,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-01-11 06:27:29,017 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:29,017 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:29,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 06:27:29,018 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:29,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:29,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1047602068, now seen corresponding path program 1 times [2022-01-11 06:27:29,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:29,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794035113] [2022-01-11 06:27:29,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:29,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:29,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:29,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794035113] [2022-01-11 06:27:29,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794035113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:29,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:29,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:27:29,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48953053] [2022-01-11 06:27:29,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:29,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:27:29,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:29,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:27:29,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:29,240 INFO L87 Difference]: Start difference. First operand 3265 states and 4953 transitions. Second operand has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:29,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:29,860 INFO L93 Difference]: Finished difference Result 12763 states and 19315 transitions. [2022-01-11 06:27:29,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:27:29,861 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2022-01-11 06:27:29,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:29,891 INFO L225 Difference]: With dead ends: 12763 [2022-01-11 06:27:29,891 INFO L226 Difference]: Without dead ends: 9539 [2022-01-11 06:27:29,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:27:29,901 INFO L933 BasicCegarLoop]: 3209 mSDtfsCounter, 4560 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4560 SdHoareTripleChecker+Valid, 5780 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:29,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4560 Valid, 5780 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:29,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9539 states. [2022-01-11 06:27:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9539 to 6332. [2022-01-11 06:27:30,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6332 states, 6320 states have (on average 1.5110759493670887) internal successors, (9550), 6331 states have internal predecessors, (9550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:30,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6332 states to 6332 states and 9550 transitions. [2022-01-11 06:27:30,315 INFO L78 Accepts]: Start accepts. Automaton has 6332 states and 9550 transitions. Word has length 306 [2022-01-11 06:27:30,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:30,316 INFO L470 AbstractCegarLoop]: Abstraction has 6332 states and 9550 transitions. [2022-01-11 06:27:30,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:30,316 INFO L276 IsEmpty]: Start isEmpty. Operand 6332 states and 9550 transitions. [2022-01-11 06:27:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-01-11 06:27:30,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:30,326 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:30,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 06:27:30,326 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:30,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:30,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1864693534, now seen corresponding path program 1 times [2022-01-11 06:27:30,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:30,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780060085] [2022-01-11 06:27:30,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:30,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:30,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:30,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780060085] [2022-01-11 06:27:30,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780060085] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:30,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:30,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:30,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044968194] [2022-01-11 06:27:30,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:30,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:30,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:30,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:30,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:30,468 INFO L87 Difference]: Start difference. First operand 6332 states and 9550 transitions. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:31,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:31,256 INFO L93 Difference]: Finished difference Result 22739 states and 33994 transitions. [2022-01-11 06:27:31,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:27:31,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 306 [2022-01-11 06:27:31,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:31,296 INFO L225 Difference]: With dead ends: 22739 [2022-01-11 06:27:31,296 INFO L226 Difference]: Without dead ends: 16951 [2022-01-11 06:27:31,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:31,306 INFO L933 BasicCegarLoop]: 2041 mSDtfsCounter, 3738 mSDsluCounter, 3957 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3738 SdHoareTripleChecker+Valid, 5998 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:31,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3738 Valid, 5998 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:27:31,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16951 states. [2022-01-11 06:27:31,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16951 to 6793. [2022-01-11 06:27:31,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6793 states, 6781 states have (on average 1.5230791918596078) internal successors, (10328), 6792 states have internal predecessors, (10328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6793 states to 6793 states and 10328 transitions. [2022-01-11 06:27:31,753 INFO L78 Accepts]: Start accepts. Automaton has 6793 states and 10328 transitions. Word has length 306 [2022-01-11 06:27:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:31,753 INFO L470 AbstractCegarLoop]: Abstraction has 6793 states and 10328 transitions. [2022-01-11 06:27:31,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:31,754 INFO L276 IsEmpty]: Start isEmpty. Operand 6793 states and 10328 transitions. [2022-01-11 06:27:31,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2022-01-11 06:27:31,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:31,765 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:31,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 06:27:31,765 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:31,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:31,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1443995273, now seen corresponding path program 1 times [2022-01-11 06:27:31,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:31,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326183899] [2022-01-11 06:27:31,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:31,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:31,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:31,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326183899] [2022-01-11 06:27:31,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326183899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:31,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:31,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:31,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626225064] [2022-01-11 06:27:31,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:31,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:31,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:31,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:31,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:31,905 INFO L87 Difference]: Start difference. First operand 6793 states and 10328 transitions. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:32,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:32,884 INFO L93 Difference]: Finished difference Result 23584 states and 35403 transitions. [2022-01-11 06:27:32,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:27:32,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2022-01-11 06:27:32,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:32,920 INFO L225 Difference]: With dead ends: 23584 [2022-01-11 06:27:32,921 INFO L226 Difference]: Without dead ends: 17764 [2022-01-11 06:27:32,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:32,937 INFO L933 BasicCegarLoop]: 2224 mSDtfsCounter, 3543 mSDsluCounter, 3959 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3543 SdHoareTripleChecker+Valid, 6183 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:32,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3543 Valid, 6183 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:27:32,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17764 states. [2022-01-11 06:27:33,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17764 to 7593. [2022-01-11 06:27:33,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7593 states, 7581 states have (on average 1.5410895660203139) internal successors, (11683), 7592 states have internal predecessors, (11683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:33,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7593 states to 7593 states and 11683 transitions. [2022-01-11 06:27:33,445 INFO L78 Accepts]: Start accepts. Automaton has 7593 states and 11683 transitions. Word has length 308 [2022-01-11 06:27:33,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:33,447 INFO L470 AbstractCegarLoop]: Abstraction has 7593 states and 11683 transitions. [2022-01-11 06:27:33,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7593 states and 11683 transitions. [2022-01-11 06:27:33,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-01-11 06:27:33,460 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:33,460 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:33,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 06:27:33,461 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:33,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:33,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1939760148, now seen corresponding path program 1 times [2022-01-11 06:27:33,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:33,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984299602] [2022-01-11 06:27:33,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:33,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:33,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:33,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984299602] [2022-01-11 06:27:33,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984299602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:33,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:33,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:27:33,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113359557] [2022-01-11 06:27:33,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:33,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:27:33,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:33,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:27:33,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:27:33,572 INFO L87 Difference]: Start difference. First operand 7593 states and 11683 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:34,326 INFO L93 Difference]: Finished difference Result 19107 states and 28710 transitions. [2022-01-11 06:27:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:27:34,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2022-01-11 06:27:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:34,352 INFO L225 Difference]: With dead ends: 19107 [2022-01-11 06:27:34,352 INFO L226 Difference]: Without dead ends: 13375 [2022-01-11 06:27:34,361 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:27:34,362 INFO L933 BasicCegarLoop]: 2599 mSDtfsCounter, 1223 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 3963 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:34,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1223 Valid, 3963 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:27:34,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13375 states. [2022-01-11 06:27:34,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13375 to 7683. [2022-01-11 06:27:34,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7683 states, 7671 states have (on average 1.535653760917742) internal successors, (11780), 7682 states have internal predecessors, (11780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:34,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7683 states to 7683 states and 11780 transitions. [2022-01-11 06:27:34,924 INFO L78 Accepts]: Start accepts. Automaton has 7683 states and 11780 transitions. Word has length 310 [2022-01-11 06:27:34,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:34,924 INFO L470 AbstractCegarLoop]: Abstraction has 7683 states and 11780 transitions. [2022-01-11 06:27:34,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:34,924 INFO L276 IsEmpty]: Start isEmpty. Operand 7683 states and 11780 transitions. [2022-01-11 06:27:34,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-01-11 06:27:34,935 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:34,935 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:34,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 06:27:34,935 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:34,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:34,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1406697566, now seen corresponding path program 1 times [2022-01-11 06:27:34,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:34,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080930495] [2022-01-11 06:27:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:34,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:35,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:35,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080930495] [2022-01-11 06:27:35,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080930495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:35,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:35,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:35,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676378372] [2022-01-11 06:27:35,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:35,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:35,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:35,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:35,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:35,051 INFO L87 Difference]: Start difference. First operand 7683 states and 11780 transitions. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:36,131 INFO L93 Difference]: Finished difference Result 24923 states and 37541 transitions. [2022-01-11 06:27:36,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:27:36,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2022-01-11 06:27:36,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:36,168 INFO L225 Difference]: With dead ends: 24923 [2022-01-11 06:27:36,169 INFO L226 Difference]: Without dead ends: 19057 [2022-01-11 06:27:36,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:36,179 INFO L933 BasicCegarLoop]: 2515 mSDtfsCounter, 3508 mSDsluCounter, 3956 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3508 SdHoareTripleChecker+Valid, 6471 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:36,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3508 Valid, 6471 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:27:36,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19057 states. [2022-01-11 06:27:36,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19057 to 8829. [2022-01-11 06:27:36,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8829 states, 8817 states have (on average 1.5596007712373823) internal successors, (13751), 8828 states have internal predecessors, (13751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:36,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 13751 transitions. [2022-01-11 06:27:36,806 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 13751 transitions. Word has length 312 [2022-01-11 06:27:36,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:36,806 INFO L470 AbstractCegarLoop]: Abstraction has 8829 states and 13751 transitions. [2022-01-11 06:27:36,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 13751 transitions. [2022-01-11 06:27:36,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-01-11 06:27:36,816 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:36,817 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:36,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 06:27:36,817 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:36,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:36,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1579236899, now seen corresponding path program 1 times [2022-01-11 06:27:36,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:36,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539560693] [2022-01-11 06:27:36,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:36,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:36,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:36,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:36,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539560693] [2022-01-11 06:27:36,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539560693] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:36,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:36,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:36,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792217321] [2022-01-11 06:27:36,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:36,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:36,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:36,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:36,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:36,951 INFO L87 Difference]: Start difference. First operand 8829 states and 13751 transitions. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:37,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:37,437 INFO L93 Difference]: Finished difference Result 14014 states and 21385 transitions. [2022-01-11 06:27:37,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:27:37,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 312 [2022-01-11 06:27:37,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:37,452 INFO L225 Difference]: With dead ends: 14014 [2022-01-11 06:27:37,453 INFO L226 Difference]: Without dead ends: 7734 [2022-01-11 06:27:37,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:37,462 INFO L933 BasicCegarLoop]: 1509 mSDtfsCounter, 219 mSDsluCounter, 2750 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 4259 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:37,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 4259 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:27:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7734 states. [2022-01-11 06:27:38,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7734 to 7734. [2022-01-11 06:27:38,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7734 states, 7722 states have (on average 1.5525770525770526) internal successors, (11989), 7733 states have internal predecessors, (11989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7734 states to 7734 states and 11989 transitions. [2022-01-11 06:27:38,110 INFO L78 Accepts]: Start accepts. Automaton has 7734 states and 11989 transitions. Word has length 312 [2022-01-11 06:27:38,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:38,110 INFO L470 AbstractCegarLoop]: Abstraction has 7734 states and 11989 transitions. [2022-01-11 06:27:38,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:38,110 INFO L276 IsEmpty]: Start isEmpty. Operand 7734 states and 11989 transitions. [2022-01-11 06:27:38,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-01-11 06:27:38,120 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:38,120 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:38,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 06:27:38,120 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:38,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:38,121 INFO L85 PathProgramCache]: Analyzing trace with hash -467807075, now seen corresponding path program 1 times [2022-01-11 06:27:38,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:38,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920429095] [2022-01-11 06:27:38,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:38,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:38,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:38,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920429095] [2022-01-11 06:27:38,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920429095] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:38,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:38,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:27:38,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704714645] [2022-01-11 06:27:38,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:38,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:27:38,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:38,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:27:38,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:27:38,292 INFO L87 Difference]: Start difference. First operand 7734 states and 11989 transitions. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:39,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:39,126 INFO L93 Difference]: Finished difference Result 18801 states and 28375 transitions. [2022-01-11 06:27:39,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:27:39,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2022-01-11 06:27:39,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:39,144 INFO L225 Difference]: With dead ends: 18801 [2022-01-11 06:27:39,144 INFO L226 Difference]: Without dead ends: 13497 [2022-01-11 06:27:39,151 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:27:39,152 INFO L933 BasicCegarLoop]: 2639 mSDtfsCounter, 1224 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1224 SdHoareTripleChecker+Valid, 3947 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:39,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1224 Valid, 3947 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:39,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13497 states. [2022-01-11 06:27:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13497 to 13391. [2022-01-11 06:27:39,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13391 states, 13379 states have (on average 1.5189476044547425) internal successors, (20322), 13390 states have internal predecessors, (20322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:40,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13391 states to 13391 states and 20322 transitions. [2022-01-11 06:27:40,010 INFO L78 Accepts]: Start accepts. Automaton has 13391 states and 20322 transitions. Word has length 313 [2022-01-11 06:27:40,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:40,010 INFO L470 AbstractCegarLoop]: Abstraction has 13391 states and 20322 transitions. [2022-01-11 06:27:40,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:40,010 INFO L276 IsEmpty]: Start isEmpty. Operand 13391 states and 20322 transitions. [2022-01-11 06:27:40,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-01-11 06:27:40,026 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:40,026 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:40,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 06:27:40,027 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:40,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:40,028 INFO L85 PathProgramCache]: Analyzing trace with hash 560605151, now seen corresponding path program 1 times [2022-01-11 06:27:40,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:40,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830969246] [2022-01-11 06:27:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:40,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:40,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:40,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830969246] [2022-01-11 06:27:40,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830969246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:40,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:40,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:27:40,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760547094] [2022-01-11 06:27:40,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:40,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:27:40,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:40,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:27:40,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:27:40,204 INFO L87 Difference]: Start difference. First operand 13391 states and 20322 transitions. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:42,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:42,087 INFO L93 Difference]: Finished difference Result 38107 states and 57451 transitions. [2022-01-11 06:27:42,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:27:42,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 314 [2022-01-11 06:27:42,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:42,130 INFO L225 Difference]: With dead ends: 38107 [2022-01-11 06:27:42,130 INFO L226 Difference]: Without dead ends: 25734 [2022-01-11 06:27:42,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:42,147 INFO L933 BasicCegarLoop]: 2342 mSDtfsCounter, 2868 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2868 SdHoareTripleChecker+Valid, 3652 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:42,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2868 Valid, 3652 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25734 states. [2022-01-11 06:27:43,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25734 to 25594. [2022-01-11 06:27:44,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25594 states, 25582 states have (on average 1.5039089985145806) internal successors, (38473), 25593 states have internal predecessors, (38473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:44,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25594 states to 25594 states and 38473 transitions. [2022-01-11 06:27:44,063 INFO L78 Accepts]: Start accepts. Automaton has 25594 states and 38473 transitions. Word has length 314 [2022-01-11 06:27:44,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:44,063 INFO L470 AbstractCegarLoop]: Abstraction has 25594 states and 38473 transitions. [2022-01-11 06:27:44,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:44,064 INFO L276 IsEmpty]: Start isEmpty. Operand 25594 states and 38473 transitions. [2022-01-11 06:27:44,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-01-11 06:27:44,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:44,090 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:44,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 06:27:44,091 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:44,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:44,091 INFO L85 PathProgramCache]: Analyzing trace with hash -776895320, now seen corresponding path program 1 times [2022-01-11 06:27:44,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:44,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928133699] [2022-01-11 06:27:44,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:44,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:44,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:44,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:44,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928133699] [2022-01-11 06:27:44,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928133699] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:44,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:44,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:27:44,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587690825] [2022-01-11 06:27:44,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:44,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:27:44,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:44,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:27:44,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:27:44,189 INFO L87 Difference]: Start difference. First operand 25594 states and 38473 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:47,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:47,746 INFO L93 Difference]: Finished difference Result 75153 states and 112586 transitions. [2022-01-11 06:27:47,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:27:47,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 316 [2022-01-11 06:27:47,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:47,843 INFO L225 Difference]: With dead ends: 75153 [2022-01-11 06:27:47,843 INFO L226 Difference]: Without dead ends: 50443 [2022-01-11 06:27:47,873 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:27:47,873 INFO L933 BasicCegarLoop]: 2697 mSDtfsCounter, 1329 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:47,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1329 Valid, 4060 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:27:47,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50443 states. [2022-01-11 06:27:50,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50443 to 26042. [2022-01-11 06:27:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26042 states, 26030 states have (on average 1.5038801383019593) internal successors, (39146), 26041 states have internal predecessors, (39146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:50,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26042 states to 26042 states and 39146 transitions. [2022-01-11 06:27:50,221 INFO L78 Accepts]: Start accepts. Automaton has 26042 states and 39146 transitions. Word has length 316 [2022-01-11 06:27:50,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:50,222 INFO L470 AbstractCegarLoop]: Abstraction has 26042 states and 39146 transitions. [2022-01-11 06:27:50,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:50,222 INFO L276 IsEmpty]: Start isEmpty. Operand 26042 states and 39146 transitions. [2022-01-11 06:27:50,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-01-11 06:27:50,246 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:50,247 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:50,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 06:27:50,247 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:50,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:50,247 INFO L85 PathProgramCache]: Analyzing trace with hash -868225146, now seen corresponding path program 1 times [2022-01-11 06:27:50,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:50,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315466359] [2022-01-11 06:27:50,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:50,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:50,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:50,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:50,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315466359] [2022-01-11 06:27:50,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315466359] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:50,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:50,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:27:50,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338550649] [2022-01-11 06:27:50,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:50,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:27:50,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:50,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:27:50,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:27:50,428 INFO L87 Difference]: Start difference. First operand 26042 states and 39146 transitions. Second operand has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:54,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:27:54,146 INFO L93 Difference]: Finished difference Result 67660 states and 101322 transitions. [2022-01-11 06:27:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 06:27:54,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 316 [2022-01-11 06:27:54,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:27:54,209 INFO L225 Difference]: With dead ends: 67660 [2022-01-11 06:27:54,209 INFO L226 Difference]: Without dead ends: 42695 [2022-01-11 06:27:54,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-11 06:27:54,232 INFO L933 BasicCegarLoop]: 3180 mSDtfsCounter, 3924 mSDsluCounter, 3886 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3924 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:27:54,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3924 Valid, 7066 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:27:54,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42695 states. [2022-01-11 06:27:56,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42695 to 27730. [2022-01-11 06:27:56,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27730 states, 27718 states have (on average 1.5130240277076268) internal successors, (41938), 27729 states have internal predecessors, (41938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:56,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27730 states to 27730 states and 41938 transitions. [2022-01-11 06:27:56,800 INFO L78 Accepts]: Start accepts. Automaton has 27730 states and 41938 transitions. Word has length 316 [2022-01-11 06:27:56,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:27:56,800 INFO L470 AbstractCegarLoop]: Abstraction has 27730 states and 41938 transitions. [2022-01-11 06:27:56,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:27:56,801 INFO L276 IsEmpty]: Start isEmpty. Operand 27730 states and 41938 transitions. [2022-01-11 06:27:56,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-01-11 06:27:56,830 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:27:56,830 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:27:56,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 06:27:56,830 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:27:56,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:27:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash 817155473, now seen corresponding path program 1 times [2022-01-11 06:27:56,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:27:56,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568770345] [2022-01-11 06:27:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:27:56,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:27:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:27:56,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:27:56,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:27:56,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568770345] [2022-01-11 06:27:56,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568770345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:27:56,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:27:56,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 06:27:56,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698044639] [2022-01-11 06:27:56,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:27:56,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 06:27:56,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:27:56,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 06:27:56,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 06:27:56,929 INFO L87 Difference]: Start difference. First operand 27730 states and 41938 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:01,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:28:01,653 INFO L93 Difference]: Finished difference Result 80380 states and 121161 transitions. [2022-01-11 06:28:01,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 06:28:01,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 318 [2022-01-11 06:28:01,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:28:01,748 INFO L225 Difference]: With dead ends: 80380 [2022-01-11 06:28:01,748 INFO L226 Difference]: Without dead ends: 54101 [2022-01-11 06:28:01,786 INFO L932 BasicCegarLoop]: 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 [2022-01-11 06:28:01,786 INFO L933 BasicCegarLoop]: 2697 mSDtfsCounter, 1323 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 06:28:01,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1323 Valid, 4060 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 06:28:01,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54101 states. [2022-01-11 06:28:04,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54101 to 28205. [2022-01-11 06:28:04,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28205 states, 28193 states have (on average 1.506260419253006) internal successors, (42466), 28204 states have internal predecessors, (42466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28205 states to 28205 states and 42466 transitions. [2022-01-11 06:28:04,710 INFO L78 Accepts]: Start accepts. Automaton has 28205 states and 42466 transitions. Word has length 318 [2022-01-11 06:28:04,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:28:04,710 INFO L470 AbstractCegarLoop]: Abstraction has 28205 states and 42466 transitions. [2022-01-11 06:28:04,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 28205 states and 42466 transitions. [2022-01-11 06:28:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-01-11 06:28:04,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:28:04,735 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:28:04,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 06:28:04,735 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:28:04,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:28:04,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1682964896, now seen corresponding path program 1 times [2022-01-11 06:28:04,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:28:04,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113363721] [2022-01-11 06:28:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:28:04,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:28:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:28:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:28:04,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:28:04,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113363721] [2022-01-11 06:28:04,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113363721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:28:04,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:28:04,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 06:28:04,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70891328] [2022-01-11 06:28:04,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:28:04,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 06:28:04,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:28:04,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 06:28:04,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:28:04,915 INFO L87 Difference]: Start difference. First operand 28205 states and 42466 transitions. Second operand has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:10,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 06:28:10,321 INFO L93 Difference]: Finished difference Result 79766 states and 119854 transitions. [2022-01-11 06:28:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 06:28:10,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2022-01-11 06:28:10,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 06:28:10,415 INFO L225 Difference]: With dead ends: 79766 [2022-01-11 06:28:10,415 INFO L226 Difference]: Without dead ends: 53026 [2022-01-11 06:28:10,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 06:28:10,442 INFO L933 BasicCegarLoop]: 2299 mSDtfsCounter, 4143 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4143 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 06:28:10,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4143 Valid, 3581 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 06:28:10,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53026 states. [2022-01-11 06:28:15,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53026 to 52910. [2022-01-11 06:28:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52910 states, 52898 states have (on average 1.489886196075466) internal successors, (78812), 52909 states have internal predecessors, (78812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52910 states to 52910 states and 78812 transitions. [2022-01-11 06:28:15,804 INFO L78 Accepts]: Start accepts. Automaton has 52910 states and 78812 transitions. Word has length 320 [2022-01-11 06:28:15,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 06:28:15,804 INFO L470 AbstractCegarLoop]: Abstraction has 52910 states and 78812 transitions. [2022-01-11 06:28:15,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.0) internal successors, (320), 5 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 06:28:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 52910 states and 78812 transitions. [2022-01-11 06:28:15,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-01-11 06:28:15,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 06:28:15,858 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 06:28:15,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 06:28:15,859 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-01-11 06:28:15,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 06:28:15,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2040828570, now seen corresponding path program 1 times [2022-01-11 06:28:15,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 06:28:15,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855346325] [2022-01-11 06:28:15,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 06:28:15,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 06:28:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 06:28:15,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 06:28:15,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 06:28:15,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855346325] [2022-01-11 06:28:15,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855346325] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 06:28:15,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 06:28:15,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 06:28:15,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043393598] [2022-01-11 06:28:15,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 06:28:15,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 06:28:15,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 06:28:15,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 06:28:15,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 06:28:15,972 INFO L87 Difference]: Start difference. First operand 52910 states and 78812 transitions. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)