/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_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:44:47,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:44:47,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:44:47,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:44:47,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:44:47,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:44:47,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:44:47,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:44:47,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:44:47,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:44:47,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:44:47,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:44:47,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:44:47,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:44:47,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:44:47,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:44:47,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:44:47,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:44:47,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:44:47,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:44:47,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:44:47,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:44:47,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:44:47,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:44:47,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:44:47,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:44:47,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:44:47,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:44:47,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:44:47,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:44:47,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:44:47,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:44:47,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:44:47,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:44:47,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:44:47,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:44:47,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:44:47,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:44:47,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:44:47,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:44:47,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:44:47,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:44:47,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:44:47,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:44:47,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:44:47,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:44:47,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:44:47,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:44:47,767 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:44:47,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:44:47,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:44:47,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:44:47,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:44:47,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:44:47,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:44:47,768 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:44:47,768 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:44:47,768 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:44:47,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:44:47,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:44:47,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:44:47,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:44:47,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:44:47,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:44:47,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:44:47,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:44:47,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:44:47,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:44:47,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:44:47,770 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:44:47,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:44:47,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:44:47,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:44:47,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:44:47,771 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:44:47,771 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:44:47,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:44:47,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:44:47,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:44:47,973 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:44:47,975 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:44:47,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c [2022-01-10 23:44:48,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197f1a7bd/35e2a68a074443a6990c6c30faf31ffa/FLAG4fdd6e77d [2022-01-10 23:44:48,487 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:44:48,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c [2022-01-10 23:44:48,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197f1a7bd/35e2a68a074443a6990c6c30faf31ffa/FLAG4fdd6e77d [2022-01-10 23:44:48,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/197f1a7bd/35e2a68a074443a6990c6c30faf31ffa [2022-01-10 23:44:48,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:44:48,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:44:48,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:44:48,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:44:48,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:44:48,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:44:48" (1/1) ... [2022-01-10 23:44:48,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1f2d6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:48, skipping insertion in model container [2022-01-10 23:44:48,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:44:48" (1/1) ... [2022-01-10 23:44:48,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:44:48,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:44:48,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c[4117,4130] [2022-01-10 23:44:48,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:44:48,948 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:44:48,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:44:48,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c[4117,4130] [2022-01-10 23:44:49,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:44:49,049 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:44:49,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c[4117,4130] [2022-01-10 23:44:49,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:44:49,163 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:44:49,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49 WrapperNode [2022-01-10 23:44:49,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:44:49,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:44:49,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:44:49,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:44:49,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,366 INFO L137 Inliner]: procedures = 95, calls = 342, calls flagged for inlining = 195, calls inlined = 404, statements flattened = 13564 [2022-01-10 23:44:49,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:44:49,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:44:49,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:44:49,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:44:49,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:44:49,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:44:49,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:44:49,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:44:49,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (1/1) ... [2022-01-10 23:44:49,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:44:49,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:44:49,571 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) [2022-01-10 23:44:49,579 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 [2022-01-10 23:44:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:44:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:44:49,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:44:49,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:44:49,752 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:44:49,753 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:44:54,397 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:44:54,426 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:44:54,426 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:44:54,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:44:54 BoogieIcfgContainer [2022-01-10 23:44:54,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:44:54,431 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:44:54,431 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:44:54,432 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:44:54,434 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:44:54" (1/1) ... [2022-01-10 23:44:55,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:44:55 BasicIcfg [2022-01-10 23:44:55,248 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:44:55,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:44:55,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:44:55,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:44:55,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:44:48" (1/4) ... [2022-01-10 23:44:55,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195fa204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:44:55, skipping insertion in model container [2022-01-10 23:44:55,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:49" (2/4) ... [2022-01-10 23:44:55,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195fa204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:44:55, skipping insertion in model container [2022-01-10 23:44:55,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:44:54" (3/4) ... [2022-01-10 23:44:55,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195fa204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:44:55, skipping insertion in model container [2022-01-10 23:44:55,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:44:55" (4/4) ... [2022-01-10 23:44:55,253 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product29.cil.cTransformedIcfg [2022-01-10 23:44:55,256 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:44:55,256 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:44:55,362 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:44:55,366 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 [2022-01-10 23:44:55,366 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:44:55,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 3629 states, 3623 states have (on average 1.875241512558653) internal successors, (6794), 3628 states have internal predecessors, (6794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 23:44:55,427 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:55,428 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] [2022-01-10 23:44:55,428 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:55,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:55,432 INFO L85 PathProgramCache]: Analyzing trace with hash -315478901, now seen corresponding path program 1 times [2022-01-10 23:44:55,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:55,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555042355] [2022-01-10 23:44:55,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:55,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:55,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:55,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:55,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555042355] [2022-01-10 23:44:55,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555042355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:55,726 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:55,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:55,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152386258] [2022-01-10 23:44:55,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:55,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:55,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:55,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:55,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:55,759 INFO L87 Difference]: Start difference. First operand has 3629 states, 3623 states have (on average 1.875241512558653) internal successors, (6794), 3628 states have internal predecessors, (6794), 0 states have call successors, (0), 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 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:56,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:56,148 INFO L93 Difference]: Finished difference Result 10792 states and 20222 transitions. [2022-01-10 23:44:56,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:56,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-10 23:44:56,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:56,197 INFO L225 Difference]: With dead ends: 10792 [2022-01-10 23:44:56,197 INFO L226 Difference]: Without dead ends: 7165 [2022-01-10 23:44:56,210 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 [2022-01-10 23:44:56,217 INFO L933 BasicCegarLoop]: 13423 mSDtfsCounter, 6755 mSDsluCounter, 6661 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6755 SdHoareTripleChecker+Valid, 20084 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:56,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6755 Valid, 20084 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:56,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7165 states. [2022-01-10 23:44:56,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7165 to 3618. [2022-01-10 23:44:56,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3613 states have (on average 1.8737890949349572) internal successors, (6770), 3617 states have internal predecessors, (6770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6770 transitions. [2022-01-10 23:44:56,369 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6770 transitions. Word has length 63 [2022-01-10 23:44:56,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:56,370 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 6770 transitions. [2022-01-10 23:44:56,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6770 transitions. [2022-01-10 23:44:56,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 23:44:56,375 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:56,375 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] [2022-01-10 23:44:56,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:44:56,376 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:56,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:56,378 INFO L85 PathProgramCache]: Analyzing trace with hash -8511236, now seen corresponding path program 1 times [2022-01-10 23:44:56,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:56,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530608603] [2022-01-10 23:44:56,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:56,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:56,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:56,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:56,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530608603] [2022-01-10 23:44:56,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530608603] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:56,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:56,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:56,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278310059] [2022-01-10 23:44:56,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:56,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:56,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:56,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:56,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:56,498 INFO L87 Difference]: Start difference. First operand 3618 states and 6770 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:56,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:56,729 INFO L93 Difference]: Finished difference Result 10697 states and 20030 transitions. [2022-01-10 23:44:56,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:56,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2022-01-10 23:44:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:56,756 INFO L225 Difference]: With dead ends: 10697 [2022-01-10 23:44:56,756 INFO L226 Difference]: Without dead ends: 7129 [2022-01-10 23:44:56,764 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 [2022-01-10 23:44:56,765 INFO L933 BasicCegarLoop]: 13286 mSDtfsCounter, 6657 mSDsluCounter, 6601 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6657 SdHoareTripleChecker+Valid, 19887 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:56,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6657 Valid, 19887 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:56,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2022-01-10 23:44:56,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 3618. [2022-01-10 23:44:56,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3613 states have (on average 1.8668696374204263) internal successors, (6745), 3617 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:56,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6745 transitions. [2022-01-10 23:44:56,865 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6745 transitions. Word has length 70 [2022-01-10 23:44:56,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:56,866 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 6745 transitions. [2022-01-10 23:44:56,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:56,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6745 transitions. [2022-01-10 23:44:56,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 23:44:56,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:56,876 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] [2022-01-10 23:44:56,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:44:56,876 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:56,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:56,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1753948715, now seen corresponding path program 1 times [2022-01-10 23:44:56,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:56,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470361117] [2022-01-10 23:44:56,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:56,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:57,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:57,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:57,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470361117] [2022-01-10 23:44:57,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470361117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:57,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:57,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:57,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442078697] [2022-01-10 23:44:57,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:57,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:57,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:57,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:57,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:57,019 INFO L87 Difference]: Start difference. First operand 3618 states and 6745 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:57,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:57,103 INFO L93 Difference]: Finished difference Result 7165 states and 13392 transitions. [2022-01-10 23:44:57,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:57,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-10 23:44:57,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:57,114 INFO L225 Difference]: With dead ends: 7165 [2022-01-10 23:44:57,115 INFO L226 Difference]: Without dead ends: 3618 [2022-01-10 23:44:57,121 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 [2022-01-10 23:44:57,124 INFO L933 BasicCegarLoop]: 6726 mSDtfsCounter, 6734 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6734 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:57,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6734 Valid, 6733 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:57,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2022-01-10 23:44:57,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 3618. [2022-01-10 23:44:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3613 states have (on average 1.8663160808192638) internal successors, (6743), 3617 states have internal predecessors, (6743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:57,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6743 transitions. [2022-01-10 23:44:57,200 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6743 transitions. Word has length 73 [2022-01-10 23:44:57,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:57,202 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 6743 transitions. [2022-01-10 23:44:57,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:57,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6743 transitions. [2022-01-10 23:44:57,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 23:44:57,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:57,206 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] [2022-01-10 23:44:57,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:44:57,206 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:57,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:57,207 INFO L85 PathProgramCache]: Analyzing trace with hash 906648239, now seen corresponding path program 1 times [2022-01-10 23:44:57,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:57,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181273032] [2022-01-10 23:44:57,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:57,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:57,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:57,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181273032] [2022-01-10 23:44:57,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181273032] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:57,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:57,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:57,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288185803] [2022-01-10 23:44:57,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:57,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:57,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:57,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:57,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:57,309 INFO L87 Difference]: Start difference. First operand 3618 states and 6743 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:57,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:57,445 INFO L93 Difference]: Finished difference Result 7129 states and 13319 transitions. [2022-01-10 23:44:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:57,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-10 23:44:57,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:57,473 INFO L225 Difference]: With dead ends: 7129 [2022-01-10 23:44:57,473 INFO L226 Difference]: Without dead ends: 3618 [2022-01-10 23:44:57,479 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 [2022-01-10 23:44:57,484 INFO L933 BasicCegarLoop]: 6648 mSDtfsCounter, 6715 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6715 SdHoareTripleChecker+Valid, 6663 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:57,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6715 Valid, 6663 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:57,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2022-01-10 23:44:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 3618. [2022-01-10 23:44:57,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3613 states have (on average 1.8635482978134514) internal successors, (6733), 3617 states have internal predecessors, (6733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:57,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6733 transitions. [2022-01-10 23:44:57,570 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6733 transitions. Word has length 75 [2022-01-10 23:44:57,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:57,570 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 6733 transitions. [2022-01-10 23:44:57,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:57,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6733 transitions. [2022-01-10 23:44:57,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 23:44:57,575 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:57,575 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] [2022-01-10 23:44:57,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:44:57,575 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:57,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:57,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1413145529, now seen corresponding path program 1 times [2022-01-10 23:44:57,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:57,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664305872] [2022-01-10 23:44:57,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:57,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:57,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:57,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:57,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664305872] [2022-01-10 23:44:57,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664305872] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:57,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:57,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:57,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012084036] [2022-01-10 23:44:57,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:57,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:57,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:57,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:57,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:57,656 INFO L87 Difference]: Start difference. First operand 3618 states and 6733 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:57,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:57,869 INFO L93 Difference]: Finished difference Result 8555 states and 15976 transitions. [2022-01-10 23:44:57,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:57,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-01-10 23:44:57,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:57,882 INFO L225 Difference]: With dead ends: 8555 [2022-01-10 23:44:57,883 INFO L226 Difference]: Without dead ends: 5963 [2022-01-10 23:44:57,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:57,889 INFO L933 BasicCegarLoop]: 7022 mSDtfsCounter, 6628 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6628 SdHoareTripleChecker+Valid, 11358 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:57,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6628 Valid, 11358 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:57,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2022-01-10 23:44:58,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 5946. [2022-01-10 23:44:58,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5941 states have (on average 1.8641642821073894) internal successors, (11075), 5945 states have internal predecessors, (11075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:58,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 11075 transitions. [2022-01-10 23:44:58,078 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 11075 transitions. Word has length 77 [2022-01-10 23:44:58,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:58,082 INFO L470 AbstractCegarLoop]: Abstraction has 5946 states and 11075 transitions. [2022-01-10 23:44:58,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:58,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 11075 transitions. [2022-01-10 23:44:58,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 23:44:58,085 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:58,085 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] [2022-01-10 23:44:58,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:44:58,085 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:58,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:58,086 INFO L85 PathProgramCache]: Analyzing trace with hash -454441701, now seen corresponding path program 1 times [2022-01-10 23:44:58,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:58,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114483602] [2022-01-10 23:44:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:58,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:58,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:58,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:58,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114483602] [2022-01-10 23:44:58,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114483602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:58,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:58,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:58,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827672558] [2022-01-10 23:44:58,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:58,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:58,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:58,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:58,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:58,155 INFO L87 Difference]: Start difference. First operand 5946 states and 11075 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:58,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:58,413 INFO L93 Difference]: Finished difference Result 14835 states and 27691 transitions. [2022-01-10 23:44:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-10 23:44:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:58,438 INFO L225 Difference]: With dead ends: 14835 [2022-01-10 23:44:58,438 INFO L226 Difference]: Without dead ends: 10519 [2022-01-10 23:44:58,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:58,450 INFO L933 BasicCegarLoop]: 6672 mSDtfsCounter, 6613 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6613 SdHoareTripleChecker+Valid, 11027 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:58,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6613 Valid, 11027 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:58,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-01-10 23:44:58,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 10502. [2022-01-10 23:44:58,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10502 states, 10497 states have (on average 1.8644374583214252) internal successors, (19571), 10501 states have internal predecessors, (19571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:58,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10502 states to 10502 states and 19571 transitions. [2022-01-10 23:44:58,682 INFO L78 Accepts]: Start accepts. Automaton has 10502 states and 19571 transitions. Word has length 78 [2022-01-10 23:44:58,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:58,682 INFO L470 AbstractCegarLoop]: Abstraction has 10502 states and 19571 transitions. [2022-01-10 23:44:58,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:58,682 INFO L276 IsEmpty]: Start isEmpty. Operand 10502 states and 19571 transitions. [2022-01-10 23:44:58,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 23:44:58,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:58,685 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] [2022-01-10 23:44:58,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:44:58,685 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:58,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:58,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1424273844, now seen corresponding path program 1 times [2022-01-10 23:44:58,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:58,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967775750] [2022-01-10 23:44:58,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:58,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:58,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:58,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967775750] [2022-01-10 23:44:58,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967775750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:58,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:58,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:58,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673275687] [2022-01-10 23:44:58,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:58,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:58,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:58,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:58,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:58,786 INFO L87 Difference]: Start difference. First operand 10502 states and 19571 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:59,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:59,188 INFO L93 Difference]: Finished difference Result 27195 states and 50732 transitions. [2022-01-10 23:44:59,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:59,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-10 23:44:59,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:59,236 INFO L225 Difference]: With dead ends: 27195 [2022-01-10 23:44:59,236 INFO L226 Difference]: Without dead ends: 19421 [2022-01-10 23:44:59,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:59,256 INFO L933 BasicCegarLoop]: 6658 mSDtfsCounter, 6598 mSDsluCounter, 4374 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6598 SdHoareTripleChecker+Valid, 11032 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:59,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6598 Valid, 11032 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19421 states. [2022-01-10 23:44:59,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19421 to 19404. [2022-01-10 23:44:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19404 states, 19399 states have (on average 1.8637043146553947) internal successors, (36154), 19403 states have internal predecessors, (36154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:59,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19404 states to 19404 states and 36154 transitions. [2022-01-10 23:44:59,746 INFO L78 Accepts]: Start accepts. Automaton has 19404 states and 36154 transitions. Word has length 79 [2022-01-10 23:44:59,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:59,746 INFO L470 AbstractCegarLoop]: Abstraction has 19404 states and 36154 transitions. [2022-01-10 23:44:59,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:44:59,746 INFO L276 IsEmpty]: Start isEmpty. Operand 19404 states and 36154 transitions. [2022-01-10 23:44:59,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 23:44:59,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:59,751 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] [2022-01-10 23:44:59,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:44:59,751 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:59,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:59,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2102828757, now seen corresponding path program 1 times [2022-01-10 23:44:59,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:59,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776110191] [2022-01-10 23:44:59,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:59,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:59,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:59,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776110191] [2022-01-10 23:44:59,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776110191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:59,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:59,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:44:59,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204711983] [2022-01-10 23:44:59,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:59,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:59,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:59,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:59,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:59,814 INFO L87 Difference]: Start difference. First operand 19404 states and 36154 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:00,406 INFO L93 Difference]: Finished difference Result 51495 states and 95971 transitions. [2022-01-10 23:45:00,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:00,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-01-10 23:45:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:00,492 INFO L225 Difference]: With dead ends: 51495 [2022-01-10 23:45:00,492 INFO L226 Difference]: Without dead ends: 36795 [2022-01-10 23:45:00,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:00,524 INFO L933 BasicCegarLoop]: 6644 mSDtfsCounter, 6583 mSDsluCounter, 4393 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6583 SdHoareTripleChecker+Valid, 11037 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:00,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6583 Valid, 11037 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:45:00,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36795 states. [2022-01-10 23:45:01,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36795 to 36778. [2022-01-10 23:45:01,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36778 states, 36773 states have (on average 1.8619367470698611) internal successors, (68469), 36777 states have internal predecessors, (68469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36778 states to 36778 states and 68469 transitions. [2022-01-10 23:45:01,438 INFO L78 Accepts]: Start accepts. Automaton has 36778 states and 68469 transitions. Word has length 80 [2022-01-10 23:45:01,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:01,439 INFO L470 AbstractCegarLoop]: Abstraction has 36778 states and 68469 transitions. [2022-01-10 23:45:01,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:01,439 INFO L276 IsEmpty]: Start isEmpty. Operand 36778 states and 68469 transitions. [2022-01-10 23:45:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:45:01,442 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:01,442 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] [2022-01-10 23:45:01,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:45:01,443 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:01,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1891002098, now seen corresponding path program 1 times [2022-01-10 23:45:01,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:01,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888026417] [2022-01-10 23:45:01,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:01,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:01,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:01,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888026417] [2022-01-10 23:45:01,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888026417] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:01,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:01,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:45:01,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621703422] [2022-01-10 23:45:01,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:01,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:01,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:01,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:01,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:01,612 INFO L87 Difference]: Start difference. First operand 36778 states and 68469 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:02,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:02,632 INFO L93 Difference]: Finished difference Result 99235 states and 184698 transitions. [2022-01-10 23:45:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:02,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 23:45:02,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:02,833 INFO L225 Difference]: With dead ends: 99235 [2022-01-10 23:45:02,833 INFO L226 Difference]: Without dead ends: 70673 [2022-01-10 23:45:02,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:02,890 INFO L933 BasicCegarLoop]: 6630 mSDtfsCounter, 6568 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6568 SdHoareTripleChecker+Valid, 11042 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:02,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6568 Valid, 11042 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:45:02,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70673 states. [2022-01-10 23:45:04,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70673 to 70656. [2022-01-10 23:45:04,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70656 states, 70651 states have (on average 1.8593367397489067) internal successors, (131364), 70655 states have internal predecessors, (131364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:04,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70656 states to 70656 states and 131364 transitions. [2022-01-10 23:45:04,651 INFO L78 Accepts]: Start accepts. Automaton has 70656 states and 131364 transitions. Word has length 81 [2022-01-10 23:45:04,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:04,651 INFO L470 AbstractCegarLoop]: Abstraction has 70656 states and 131364 transitions. [2022-01-10 23:45:04,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:04,651 INFO L276 IsEmpty]: Start isEmpty. Operand 70656 states and 131364 transitions. [2022-01-10 23:45:04,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:45:04,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:04,654 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] [2022-01-10 23:45:04,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:45:04,655 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash -929388081, now seen corresponding path program 1 times [2022-01-10 23:45:04,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:04,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006720181] [2022-01-10 23:45:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:04,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:04,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:04,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006720181] [2022-01-10 23:45:04,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006720181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:04,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:04,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:04,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601102235] [2022-01-10 23:45:04,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:04,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:04,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:04,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:04,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:04,719 INFO L87 Difference]: Start difference. First operand 70656 states and 131364 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:06,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:06,433 INFO L93 Difference]: Finished difference Result 197239 states and 366561 transitions. [2022-01-10 23:45:06,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:06,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-10 23:45:06,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:06,818 INFO L225 Difference]: With dead ends: 197239 [2022-01-10 23:45:06,818 INFO L226 Difference]: Without dead ends: 141114 [2022-01-10 23:45:06,871 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 [2022-01-10 23:45:06,871 INFO L933 BasicCegarLoop]: 9918 mSDtfsCounter, 6641 mSDsluCounter, 6571 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6641 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:06,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6641 Valid, 16489 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:06,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141114 states. [2022-01-10 23:45:09,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141114 to 141114. [2022-01-10 23:45:09,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141114 states, 141109 states have (on average 1.8594632518124288) internal successors, (262387), 141113 states have internal predecessors, (262387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141114 states to 141114 states and 262387 transitions. [2022-01-10 23:45:09,958 INFO L78 Accepts]: Start accepts. Automaton has 141114 states and 262387 transitions. Word has length 81 [2022-01-10 23:45:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:09,958 INFO L470 AbstractCegarLoop]: Abstraction has 141114 states and 262387 transitions. [2022-01-10 23:45:09,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 141114 states and 262387 transitions. [2022-01-10 23:45:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 23:45:09,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:09,966 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] [2022-01-10 23:45:09,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:45:09,966 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:09,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:09,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1253761296, now seen corresponding path program 1 times [2022-01-10 23:45:09,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:09,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584458530] [2022-01-10 23:45:09,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:09,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:10,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:10,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:10,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584458530] [2022-01-10 23:45:10,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584458530] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:10,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:10,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:10,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9260230] [2022-01-10 23:45:10,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:10,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:10,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:10,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:10,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:10,040 INFO L87 Difference]: Start difference. First operand 141114 states and 262387 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:13,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:13,360 INFO L93 Difference]: Finished difference Result 393764 states and 731842 transitions. [2022-01-10 23:45:13,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:13,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 23:45:13,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:14,257 INFO L225 Difference]: With dead ends: 393764 [2022-01-10 23:45:14,258 INFO L226 Difference]: Without dead ends: 281848 [2022-01-10 23:45:14,359 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 [2022-01-10 23:45:14,360 INFO L933 BasicCegarLoop]: 6660 mSDtfsCounter, 6576 mSDsluCounter, 6574 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6576 SdHoareTripleChecker+Valid, 13234 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:14,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6576 Valid, 13234 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:14,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281848 states. [2022-01-10 23:45:18,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281848 to 281846. [2022-01-10 23:45:19,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281846 states, 281841 states have (on average 1.8594987954201128) internal successors, (524083), 281845 states have internal predecessors, (524083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281846 states to 281846 states and 524083 transitions. [2022-01-10 23:45:20,049 INFO L78 Accepts]: Start accepts. Automaton has 281846 states and 524083 transitions. Word has length 82 [2022-01-10 23:45:20,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:20,049 INFO L470 AbstractCegarLoop]: Abstraction has 281846 states and 524083 transitions. [2022-01-10 23:45:20,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 281846 states and 524083 transitions. [2022-01-10 23:45:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 23:45:20,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:20,059 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] [2022-01-10 23:45:20,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:45:20,059 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:20,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:20,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1289800800, now seen corresponding path program 1 times [2022-01-10 23:45:20,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:20,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506263050] [2022-01-10 23:45:20,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:20,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:20,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:45:20,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:20,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506263050] [2022-01-10 23:45:20,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506263050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:20,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:20,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:45:20,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035058423] [2022-01-10 23:45:20,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:20,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:45:20,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:20,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:45:20,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:45:20,153 INFO L87 Difference]: Start difference. First operand 281846 states and 524083 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:38,227 INFO L93 Difference]: Finished difference Result 1690292 states and 3143293 transitions. [2022-01-10 23:45:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:45:38,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-10 23:45:38,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted.