/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_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:47:29,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:47:29,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:47:29,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:47:29,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:47:29,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:47:29,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:47:29,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:47:29,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:47:29,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:47:29,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:47:29,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:47:29,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:47:29,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:47:29,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:47:29,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:47:29,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:47:29,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:47:29,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:47:29,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:47:29,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:47:29,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:47:29,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:47:29,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:47:29,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:47:29,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:47:29,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:47:29,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:47:29,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:47:29,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:47:29,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:47:29,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:47:29,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:47:29,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:47:29,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:47:29,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:47:29,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:47:29,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:47:29,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:47:29,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:47:29,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:47:29,539 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 23:47:29,558 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:47:29,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:47:29,559 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:47:29,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:47:29,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:47:29,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:47:29,560 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:47:29,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:47:29,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:47:29,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:47:29,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:47:29,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:47:29,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:47:29,562 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:47:29,562 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:47:29,562 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:47:29,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:47:29,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:47:29,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:47:29,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:47:29,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:47:29,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:47:29,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:47:29,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:47:29,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:47:29,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:47:29,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:47:29,563 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:47:29,563 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:47:29,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:47:29,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:47:29,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:47:29,565 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:47:29,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:47:29,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:47:29,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:47:29,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:47:29,784 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:47:29,784 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:47:29,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product24.cil.c [2022-01-10 23:47:29,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cd41cb3/f084022e73ce4f2aa48ae0a74eb6337f/FLAG40d277ec6 [2022-01-10 23:47:30,245 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:47:30,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product24.cil.c [2022-01-10 23:47:30,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cd41cb3/f084022e73ce4f2aa48ae0a74eb6337f/FLAG40d277ec6 [2022-01-10 23:47:30,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1cd41cb3/f084022e73ce4f2aa48ae0a74eb6337f [2022-01-10 23:47:30,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:47:30,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:47:30,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:47:30,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:47:30,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:47:30,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:30" (1/1) ... [2022-01-10 23:47:30,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458d8003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:30, skipping insertion in model container [2022-01-10 23:47:30,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:47:30" (1/1) ... [2022-01-10 23:47:30,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:47:30,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:47:30,979 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_spec3_product24.cil.c[75121,75134] [2022-01-10 23:47:30,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:30,989 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:47:31,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:47:31,070 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_spec3_product24.cil.c[75121,75134] [2022-01-10 23:47:31,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:31,074 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:47:31,127 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_spec3_product24.cil.c[75121,75134] [2022-01-10 23:47:31,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:47:31,147 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:47:31,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31 WrapperNode [2022-01-10 23:47:31,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:47:31,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:47:31,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:47:31,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:47:31,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:31,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:31,838 INFO L137 Inliner]: procedures = 98, calls = 359, calls flagged for inlining = 211, calls inlined = 1968, statements flattened = 66777 [2022-01-10 23:47:31,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:47:31,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:47:31,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:47:31,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:47:31,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:31,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:31,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:31,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:32,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:32,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:32,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:32,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:47:32,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:47:32,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:47:32,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:47:32,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (1/1) ... [2022-01-10 23:47:32,790 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:47:32,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:47:32,825 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 23:47:32,875 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 23:47:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:47:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:47:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:47:32,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:47:33,059 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:47:33,060 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:47:51,057 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:47:51,155 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:47:51,155 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:47:51,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:47:51 BoogieIcfgContainer [2022-01-10 23:47:51,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:47:51,170 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:47:51,171 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:47:51,171 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:47:51,173 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:47:51" (1/1) ... [2022-01-10 23:47:53,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:47:53 BasicIcfg [2022-01-10 23:47:53,802 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:47:53,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:47:53,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:47:53,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:47:53,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:47:30" (1/4) ... [2022-01-10 23:47:53,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6485392a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:47:53, skipping insertion in model container [2022-01-10 23:47:53,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:47:31" (2/4) ... [2022-01-10 23:47:53,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6485392a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:47:53, skipping insertion in model container [2022-01-10 23:47:53,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:47:51" (3/4) ... [2022-01-10 23:47:53,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6485392a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:47:53, skipping insertion in model container [2022-01-10 23:47:53,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:47:53" (4/4) ... [2022-01-10 23:47:53,807 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product24.cil.cTransformedIcfg [2022-01-10 23:47:53,810 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:47:53,810 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-10 23:47:53,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:47:53,876 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 23:47:53,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-10 23:47:54,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 17608 states, 17597 states have (on average 1.8761720747854749) internal successors, (33015), 17607 states have internal predecessors, (33015), 0 states have call successors, (0), 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 23:47:54,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 23:47:54,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:54,073 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] [2022-01-10 23:47:54,074 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:54,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:54,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1137878214, now seen corresponding path program 1 times [2022-01-10 23:47:54,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:54,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625021060] [2022-01-10 23:47:54,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:54,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:54,400 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 23:47:54,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:54,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625021060] [2022-01-10 23:47:54,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625021060] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:54,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:54,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:47:54,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313502154] [2022-01-10 23:47:54,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:54,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:47:54,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:54,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:47:54,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:47:54,483 INFO L87 Difference]: Start difference. First operand has 17608 states, 17597 states have (on average 1.8761720747854749) internal successors, (33015), 17607 states have internal predecessors, (33015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 23:47:56,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:56,528 INFO L93 Difference]: Finished difference Result 70221 states and 131693 transitions. [2022-01-10 23:47:56,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:47:56,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2022-01-10 23:47:56,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:56,739 INFO L225 Difference]: With dead ends: 70221 [2022-01-10 23:47:56,739 INFO L226 Difference]: Without dead ends: 52619 [2022-01-10 23:47:56,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:47:56,776 INFO L933 BasicCegarLoop]: 65806 mSDtfsCounter, 98560 mSDsluCounter, 98739 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98560 SdHoareTripleChecker+Valid, 164545 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:56,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98560 Valid, 164545 Invalid, 77 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:47:56,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52619 states. [2022-01-10 23:47:57,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52619 to 17601. [2022-01-10 23:47:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17601 states, 17591 states have (on average 1.8755613666079245) internal successors, (32993), 17600 states have internal predecessors, (32993), 0 states have call successors, (0), 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 23:47:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17601 states to 17601 states and 32993 transitions. [2022-01-10 23:47:57,550 INFO L78 Accepts]: Start accepts. Automaton has 17601 states and 32993 transitions. Word has length 34 [2022-01-10 23:47:57,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:57,551 INFO L470 AbstractCegarLoop]: Abstraction has 17601 states and 32993 transitions. [2022-01-10 23:47:57,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 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 23:47:57,551 INFO L276 IsEmpty]: Start isEmpty. Operand 17601 states and 32993 transitions. [2022-01-10 23:47:57,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 23:47:57,557 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:57,557 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:57,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:47:57,558 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:57,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:57,559 INFO L85 PathProgramCache]: Analyzing trace with hash 458567859, now seen corresponding path program 1 times [2022-01-10 23:47:57,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:57,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113252987] [2022-01-10 23:47:57,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:57,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:57,669 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 23:47:57,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:57,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113252987] [2022-01-10 23:47:57,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113252987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:57,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:57,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:57,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234263899] [2022-01-10 23:47:57,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:57,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:57,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:57,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:57,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:57,675 INFO L87 Difference]: Start difference. First operand 17601 states and 32993 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 23:47:58,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:58,180 INFO L93 Difference]: Finished difference Result 35119 states and 65836 transitions. [2022-01-10 23:47:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:58,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2022-01-10 23:47:58,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:58,221 INFO L225 Difference]: With dead ends: 35119 [2022-01-10 23:47:58,221 INFO L226 Difference]: Without dead ends: 17533 [2022-01-10 23:47:58,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 23:47:58,249 INFO L933 BasicCegarLoop]: 32855 mSDtfsCounter, 32847 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32847 SdHoareTripleChecker+Valid, 32863 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:58,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32847 Valid, 32863 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:47:58,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-10 23:47:58,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-10 23:47:58,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.8750784682988073) internal successors, (32857), 17532 states have internal predecessors, (32857), 0 states have call successors, (0), 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 23:47:58,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32857 transitions. [2022-01-10 23:47:58,720 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32857 transitions. Word has length 35 [2022-01-10 23:47:58,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:58,721 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32857 transitions. [2022-01-10 23:47:58,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 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 23:47:58,724 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32857 transitions. [2022-01-10 23:47:58,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 23:47:58,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:58,729 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] [2022-01-10 23:47:58,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:47:58,731 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:47:58,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:58,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1804362715, now seen corresponding path program 1 times [2022-01-10 23:47:58,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:58,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774035563] [2022-01-10 23:47:58,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:58,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:58,852 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 23:47:58,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:58,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774035563] [2022-01-10 23:47:58,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774035563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:58,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:58,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:47:58,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405027349] [2022-01-10 23:47:58,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:58,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:47:58,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:58,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:47:58,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:47:58,854 INFO L87 Difference]: Start difference. First operand 17533 states and 32857 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 23:47:59,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:59,637 INFO L93 Difference]: Finished difference Result 35044 states and 65685 transitions. [2022-01-10 23:47:59,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:47:59,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 37 [2022-01-10 23:47:59,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:59,673 INFO L225 Difference]: With dead ends: 35044 [2022-01-10 23:47:59,673 INFO L226 Difference]: Without dead ends: 17533 [2022-01-10 23:47:59,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:47:59,695 INFO L933 BasicCegarLoop]: 32841 mSDtfsCounter, 98517 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98517 SdHoareTripleChecker+Valid, 32889 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:59,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98517 Valid, 32889 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:47:59,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-10 23:48:00,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-10 23:48:00,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.8749643325914513) internal successors, (32855), 17532 states have internal predecessors, (32855), 0 states have call successors, (0), 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 23:48:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32855 transitions. [2022-01-10 23:48:00,084 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32855 transitions. Word has length 37 [2022-01-10 23:48:00,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:00,085 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32855 transitions. [2022-01-10 23:48:00,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 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 23:48:00,085 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32855 transitions. [2022-01-10 23:48:00,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 23:48:00,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:00,086 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] [2022-01-10 23:48:00,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:48:00,087 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:00,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1896563231, now seen corresponding path program 1 times [2022-01-10 23:48:00,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:00,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555505351] [2022-01-10 23:48:00,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:00,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:00,221 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 23:48:00,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:00,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555505351] [2022-01-10 23:48:00,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555505351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:00,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:00,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:48:00,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655462231] [2022-01-10 23:48:00,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:00,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:48:00,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:00,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:48:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:00,223 INFO L87 Difference]: Start difference. First operand 17533 states and 32855 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 23:48:00,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:00,911 INFO L93 Difference]: Finished difference Result 35038 states and 65671 transitions. [2022-01-10 23:48:00,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:48:00,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2022-01-10 23:48:00,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:00,945 INFO L225 Difference]: With dead ends: 35038 [2022-01-10 23:48:00,945 INFO L226 Difference]: Without dead ends: 17533 [2022-01-10 23:48:00,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:48:00,969 INFO L933 BasicCegarLoop]: 32823 mSDtfsCounter, 65662 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65662 SdHoareTripleChecker+Valid, 32866 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:00,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65662 Valid, 32866 Invalid, 42 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:00,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-10 23:48:01,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-10 23:48:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.8748501968840952) internal successors, (32853), 17532 states have internal predecessors, (32853), 0 states have call successors, (0), 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 23:48:01,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32853 transitions. [2022-01-10 23:48:01,504 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32853 transitions. Word has length 38 [2022-01-10 23:48:01,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:01,504 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32853 transitions. [2022-01-10 23:48:01,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 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 23:48:01,504 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32853 transitions. [2022-01-10 23:48:01,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-10 23:48:01,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:01,518 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] [2022-01-10 23:48:01,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:48:01,518 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:01,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:01,519 INFO L85 PathProgramCache]: Analyzing trace with hash 21590406, now seen corresponding path program 1 times [2022-01-10 23:48:01,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:01,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908135549] [2022-01-10 23:48:01,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:01,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:01,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:01,588 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 23:48:01,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:01,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908135549] [2022-01-10 23:48:01,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908135549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:01,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:01,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:48:01,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149415100] [2022-01-10 23:48:01,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:01,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:48:01,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:01,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:48:01,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:48:01,590 INFO L87 Difference]: Start difference. First operand 17533 states and 32853 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 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 23:48:02,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:02,194 INFO L93 Difference]: Finished difference Result 35038 states and 65668 transitions. [2022-01-10 23:48:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:48:02,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2022-01-10 23:48:02,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:02,225 INFO L225 Difference]: With dead ends: 35038 [2022-01-10 23:48:02,226 INFO L226 Difference]: Without dead ends: 17533 [2022-01-10 23:48:02,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:48:02,243 INFO L933 BasicCegarLoop]: 32823 mSDtfsCounter, 131324 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131324 SdHoareTripleChecker+Valid, 32856 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:02,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131324 Valid, 32856 Invalid, 45 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:02,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-10 23:48:02,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-10 23:48:02,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.8747360611767392) internal successors, (32851), 17532 states have internal predecessors, (32851), 0 states have call successors, (0), 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 23:48:02,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32851 transitions. [2022-01-10 23:48:02,751 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32851 transitions. Word has length 39 [2022-01-10 23:48:02,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:02,754 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32851 transitions. [2022-01-10 23:48:02,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 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 23:48:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32851 transitions. [2022-01-10 23:48:02,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 23:48:02,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:02,755 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] [2022-01-10 23:48:02,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:48:02,755 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:02,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:02,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1007227346, now seen corresponding path program 1 times [2022-01-10 23:48:02,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:02,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101812210] [2022-01-10 23:48:02,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:02,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:02,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:02,816 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 23:48:02,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:02,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101812210] [2022-01-10 23:48:02,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101812210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:02,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:02,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:48:02,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058753340] [2022-01-10 23:48:02,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:02,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:48:02,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:02,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:48:02,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:48:02,818 INFO L87 Difference]: Start difference. First operand 17533 states and 32851 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 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 23:48:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:03,611 INFO L93 Difference]: Finished difference Result 35038 states and 65665 transitions. [2022-01-10 23:48:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 23:48:03,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2022-01-10 23:48:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:03,642 INFO L225 Difference]: With dead ends: 35038 [2022-01-10 23:48:03,643 INFO L226 Difference]: Without dead ends: 17533 [2022-01-10 23:48:03,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:48:03,660 INFO L933 BasicCegarLoop]: 32823 mSDtfsCounter, 98480 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98480 SdHoareTripleChecker+Valid, 32866 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:03,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98480 Valid, 32866 Invalid, 47 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:03,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-10 23:48:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-10 23:48:04,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.874621925469383) internal successors, (32849), 17532 states have internal predecessors, (32849), 0 states have call successors, (0), 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 23:48:04,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32849 transitions. [2022-01-10 23:48:04,205 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32849 transitions. Word has length 40 [2022-01-10 23:48:04,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:04,205 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32849 transitions. [2022-01-10 23:48:04,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 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 23:48:04,205 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32849 transitions. [2022-01-10 23:48:04,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-10 23:48:04,206 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:04,206 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] [2022-01-10 23:48:04,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:48:04,206 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:04,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:04,206 INFO L85 PathProgramCache]: Analyzing trace with hash 477453785, now seen corresponding path program 1 times [2022-01-10 23:48:04,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:04,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484292405] [2022-01-10 23:48:04,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:04,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:04,284 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 23:48:04,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:04,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484292405] [2022-01-10 23:48:04,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484292405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:04,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:04,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:48:04,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861393948] [2022-01-10 23:48:04,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:04,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:48:04,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:04,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:48:04,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:48:04,286 INFO L87 Difference]: Start difference. First operand 17533 states and 32849 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 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 23:48:04,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:04,948 INFO L93 Difference]: Finished difference Result 35038 states and 65662 transitions. [2022-01-10 23:48:04,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-10 23:48:04,949 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2022-01-10 23:48:04,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:04,974 INFO L225 Difference]: With dead ends: 35038 [2022-01-10 23:48:04,974 INFO L226 Difference]: Without dead ends: 17533 [2022-01-10 23:48:04,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:48:04,986 INFO L933 BasicCegarLoop]: 32823 mSDtfsCounter, 65648 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65648 SdHoareTripleChecker+Valid, 32886 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:04,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65648 Valid, 32886 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:05,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2022-01-10 23:48:05,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17533. [2022-01-10 23:48:05,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17533 states, 17523 states have (on average 1.874507789762027) internal successors, (32847), 17532 states have internal predecessors, (32847), 0 states have call successors, (0), 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 23:48:05,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17533 states to 17533 states and 32847 transitions. [2022-01-10 23:48:05,391 INFO L78 Accepts]: Start accepts. Automaton has 17533 states and 32847 transitions. Word has length 41 [2022-01-10 23:48:05,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:05,391 INFO L470 AbstractCegarLoop]: Abstraction has 17533 states and 32847 transitions. [2022-01-10 23:48:05,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 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 23:48:05,391 INFO L276 IsEmpty]: Start isEmpty. Operand 17533 states and 32847 transitions. [2022-01-10 23:48:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 23:48:05,392 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:05,392 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] [2022-01-10 23:48:05,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:48:05,393 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:05,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:05,393 INFO L85 PathProgramCache]: Analyzing trace with hash 214594949, now seen corresponding path program 1 times [2022-01-10 23:48:05,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:05,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463876574] [2022-01-10 23:48:05,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:05,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:05,464 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 23:48:05,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:05,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463876574] [2022-01-10 23:48:05,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463876574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:05,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:05,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:48:05,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076870423] [2022-01-10 23:48:05,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:05,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:48:05,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:05,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:48:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:05,466 INFO L87 Difference]: Start difference. First operand 17533 states and 32847 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 23:48:12,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:12,809 INFO L93 Difference]: Finished difference Result 145564 states and 272699 transitions. [2022-01-10 23:48:12,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:48:12,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-01-10 23:48:12,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:13,209 INFO L225 Difference]: With dead ends: 145564 [2022-01-10 23:48:13,210 INFO L226 Difference]: Without dead ends: 128145 [2022-01-10 23:48:13,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:48:13,245 INFO L933 BasicCegarLoop]: 68143 mSDtfsCounter, 221104 mSDsluCounter, 189200 mSDsCounter, 0 mSdLazyCounter, 3047 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221104 SdHoareTripleChecker+Valid, 257343 SdHoareTripleChecker+Invalid, 3759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 3047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:13,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221104 Valid, 257343 Invalid, 3759 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [712 Valid, 3047 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-01-10 23:48:13,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128145 states. [2022-01-10 23:48:15,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128145 to 32626. [2022-01-10 23:48:15,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32626 states, 32616 states have (on average 1.8704623497669854) internal successors, (61007), 32625 states have internal predecessors, (61007), 0 states have call successors, (0), 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 23:48:15,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32626 states to 32626 states and 61007 transitions. [2022-01-10 23:48:15,160 INFO L78 Accepts]: Start accepts. Automaton has 32626 states and 61007 transitions. Word has length 42 [2022-01-10 23:48:15,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:15,161 INFO L470 AbstractCegarLoop]: Abstraction has 32626 states and 61007 transitions. [2022-01-10 23:48:15,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 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 23:48:15,161 INFO L276 IsEmpty]: Start isEmpty. Operand 32626 states and 61007 transitions. [2022-01-10 23:48:15,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-10 23:48:15,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:15,161 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] [2022-01-10 23:48:15,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:48:15,162 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:15,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:15,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1648932404, now seen corresponding path program 1 times [2022-01-10 23:48:15,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:15,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131387994] [2022-01-10 23:48:15,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:15,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:15,289 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 23:48:15,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:15,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131387994] [2022-01-10 23:48:15,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131387994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:15,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:15,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:15,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182753589] [2022-01-10 23:48:15,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:15,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:15,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:15,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:15,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:15,293 INFO L87 Difference]: Start difference. First operand 32626 states and 61007 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 23:48:17,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:17,341 INFO L93 Difference]: Finished difference Result 92350 states and 172771 transitions. [2022-01-10 23:48:17,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:17,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2022-01-10 23:48:17,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:17,455 INFO L225 Difference]: With dead ends: 92350 [2022-01-10 23:48:17,455 INFO L226 Difference]: Without dead ends: 64396 [2022-01-10 23:48:17,481 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 23:48:17,482 INFO L933 BasicCegarLoop]: 32933 mSDtfsCounter, 31972 mSDsluCounter, 32723 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31972 SdHoareTripleChecker+Valid, 65656 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:17,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31972 Valid, 65656 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:17,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64396 states. [2022-01-10 23:48:19,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64396 to 64264. [2022-01-10 23:48:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64264 states, 64254 states have (on average 1.872179163943101) internal successors, (120295), 64263 states have internal predecessors, (120295), 0 states have call successors, (0), 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 23:48:19,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64264 states to 64264 states and 120295 transitions. [2022-01-10 23:48:19,964 INFO L78 Accepts]: Start accepts. Automaton has 64264 states and 120295 transitions. Word has length 42 [2022-01-10 23:48:19,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:19,964 INFO L470 AbstractCegarLoop]: Abstraction has 64264 states and 120295 transitions. [2022-01-10 23:48:19,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 23:48:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 64264 states and 120295 transitions. [2022-01-10 23:48:19,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 23:48:19,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:19,965 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] [2022-01-10 23:48:19,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:48:19,965 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-10 23:48:19,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:19,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1476520051, now seen corresponding path program 1 times [2022-01-10 23:48:19,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:19,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397945274] [2022-01-10 23:48:19,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:19,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:20,000 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 23:48:20,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:20,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397945274] [2022-01-10 23:48:20,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397945274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:20,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:20,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:20,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650788387] [2022-01-10 23:48:20,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:20,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:20,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:20,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:20,002 INFO L87 Difference]: Start difference. First operand 64264 states and 120295 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 23:48:23,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:23,080 INFO L93 Difference]: Finished difference Result 151068 states and 282803 transitions. [2022-01-10 23:48:23,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:23,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2022-01-10 23:48:23,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:23,256 INFO L225 Difference]: With dead ends: 151068 [2022-01-10 23:48:23,256 INFO L226 Difference]: Without dead ends: 96034 [2022-01-10 23:48:23,454 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 23:48:23,454 INFO L933 BasicCegarLoop]: 64642 mSDtfsCounter, 32700 mSDsluCounter, 31987 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32700 SdHoareTripleChecker+Valid, 96629 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:23,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32700 Valid, 96629 Invalid, 98 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:23,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96034 states.