/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:33:09,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:33:09,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:33:09,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:33:09,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:33:09,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:33:09,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:33:09,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:33:09,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:33:09,655 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:33:09,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:33:09,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:33:09,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:33:09,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:33:09,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:33:09,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:33:09,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:33:09,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:33:09,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:33:09,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:33:09,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:33:09,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:33:09,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:33:09,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:33:09,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:33:09,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:33:09,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:33:09,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:33:09,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:33:09,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:33:09,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:33:09,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:33:09,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:33:09,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:33:09,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:33:09,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:33:09,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:33:09,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:33:09,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:33:09,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:33:09,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:33:09,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:33:09,759 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:33:09,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:33:09,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:33:09,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:33:09,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:33:09,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:33:09,761 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:33:09,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:33:09,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:33:09,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:33:09,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:33:09,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:33:09,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:33:09,762 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:33:09,763 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:33:09,763 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:33:09,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:33:09,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:33:09,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:33:09,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:33:09,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:33:09,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:33:09,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:33:09,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:33:09,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:33:09,764 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:33:09,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:33:09,764 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:33:09,765 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:33:09,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:33:09,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:33:09,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:33:09,766 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:33:09,766 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:33:09,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:33:10,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:33:10,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:33:10,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:33:10,040 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:33:10,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product09.cil.c [2022-01-11 05:33:10,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0234fcc28/85b5128e36ed46df9884955777631c52/FLAG9de0f5a5e [2022-01-11 05:33:10,665 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:33:10,666 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product09.cil.c [2022-01-11 05:33:10,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0234fcc28/85b5128e36ed46df9884955777631c52/FLAG9de0f5a5e [2022-01-11 05:33:10,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0234fcc28/85b5128e36ed46df9884955777631c52 [2022-01-11 05:33:10,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:33:10,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:33:10,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:33:10,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:33:10,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:33:10,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:10" (1/1) ... [2022-01-11 05:33:10,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2483b237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:10, skipping insertion in model container [2022-01-11 05:33:10,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:10" (1/1) ... [2022-01-11 05:33:10,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:33:10,993 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:33:11,248 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_spec2_product09.cil.c[28842,28855] [2022-01-11 05:33:11,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:11,405 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:33:11,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:33:11,457 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_spec2_product09.cil.c[28842,28855] [2022-01-11 05:33:11,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:11,547 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:33:11,597 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_spec2_product09.cil.c[28842,28855] [2022-01-11 05:33:11,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:11,652 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:33:11,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11 WrapperNode [2022-01-11 05:33:11,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:33:11,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:33:11,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:33:11,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:33:11,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,805 INFO L137 Inliner]: procedures = 91, calls = 330, calls flagged for inlining = 183, calls inlined = 252, statements flattened = 8075 [2022-01-11 05:33:11,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:33:11,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:33:11,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:33:11,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:33:11,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:33:11,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:33:11,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:33:11,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:33:11,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:33:11,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:33:11,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:33:11,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:33:12,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:33:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:33:12,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:33:12,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:33:12,201 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:33:12,202 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:33:15,308 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:33:15,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:33:15,329 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:33:15,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:15 BoogieIcfgContainer [2022-01-11 05:33:15,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:33:15,337 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:33:15,337 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:33:15,339 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:33:15,341 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:15" (1/1) ... [2022-01-11 05:33:16,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:33:16 BasicIcfg [2022-01-11 05:33:16,037 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:33:16,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:33:16,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:33:16,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:33:16,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:33:10" (1/4) ... [2022-01-11 05:33:16,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ac88e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:33:16, skipping insertion in model container [2022-01-11 05:33:16,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (2/4) ... [2022-01-11 05:33:16,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ac88e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:33:16, skipping insertion in model container [2022-01-11 05:33:16,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:15" (3/4) ... [2022-01-11 05:33:16,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54ac88e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:33:16, skipping insertion in model container [2022-01-11 05:33:16,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:33:16" (4/4) ... [2022-01-11 05:33:16,044 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product09.cil.cTransformedIcfg [2022-01-11 05:33:16,049 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:33:16,049 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:33:16,110 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:33:16,117 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:33:16,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:33:16,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 2392 states, 2386 states have (on average 1.874685666387259) internal successors, (4473), 2391 states have internal predecessors, (4473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-11 05:33:16,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:16,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:16,193 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:16,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:16,198 INFO L85 PathProgramCache]: Analyzing trace with hash 812380048, now seen corresponding path program 1 times [2022-01-11 05:33:16,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:16,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211130368] [2022-01-11 05:33:16,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:16,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:16,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:16,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211130368] [2022-01-11 05:33:16,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211130368] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:16,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:16,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:16,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450569574] [2022-01-11 05:33:16,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:16,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:16,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:16,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:16,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:16,597 INFO L87 Difference]: Start difference. First operand has 2392 states, 2386 states have (on average 1.874685666387259) internal successors, (4473), 2391 states have internal predecessors, (4473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:16,765 INFO L93 Difference]: Finished difference Result 4769 states and 8923 transitions. [2022-01-11 05:33:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:16,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2022-01-11 05:33:16,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:16,796 INFO L225 Difference]: With dead ends: 4769 [2022-01-11 05:33:16,796 INFO L226 Difference]: Without dead ends: 2381 [2022-01-11 05:33:16,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:16,815 INFO L933 BasicCegarLoop]: 4452 mSDtfsCounter, 4447 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4447 SdHoareTripleChecker+Valid, 4463 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:16,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4447 Valid, 4463 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:16,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-01-11 05:33:16,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2381. [2022-01-11 05:33:16,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2376 states have (on average 1.8724747474747474) internal successors, (4449), 2380 states have internal predecessors, (4449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 4449 transitions. [2022-01-11 05:33:16,925 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 4449 transitions. Word has length 45 [2022-01-11 05:33:16,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:16,925 INFO L470 AbstractCegarLoop]: Abstraction has 2381 states and 4449 transitions. [2022-01-11 05:33:16,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 4449 transitions. [2022-01-11 05:33:16,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:33:16,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:16,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:16,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:33:16,930 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:16,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:16,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1207389445, now seen corresponding path program 1 times [2022-01-11 05:33:16,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:16,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281008226] [2022-01-11 05:33:16,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:16,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:17,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:17,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281008226] [2022-01-11 05:33:17,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281008226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:17,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:17,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:17,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017977070] [2022-01-11 05:33:17,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:17,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:17,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:17,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:17,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:17,095 INFO L87 Difference]: Start difference. First operand 2381 states and 4449 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:17,205 INFO L93 Difference]: Finished difference Result 4712 states and 8812 transitions. [2022-01-11 05:33:17,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:17,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 05:33:17,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:17,214 INFO L225 Difference]: With dead ends: 4712 [2022-01-11 05:33:17,214 INFO L226 Difference]: Without dead ends: 2381 [2022-01-11 05:33:17,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:17,219 INFO L933 BasicCegarLoop]: 4389 mSDtfsCounter, 4407 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4407 SdHoareTripleChecker+Valid, 4404 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:17,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4407 Valid, 4404 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:17,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-01-11 05:33:17,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2381. [2022-01-11 05:33:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2376 states have (on average 1.861952861952862) internal successors, (4424), 2380 states have internal predecessors, (4424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 4424 transitions. [2022-01-11 05:33:17,269 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 4424 transitions. Word has length 52 [2022-01-11 05:33:17,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:17,270 INFO L470 AbstractCegarLoop]: Abstraction has 2381 states and 4424 transitions. [2022-01-11 05:33:17,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 4424 transitions. [2022-01-11 05:33:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:33:17,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:17,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:17,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:33:17,281 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:17,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:17,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2094931094, now seen corresponding path program 1 times [2022-01-11 05:33:17,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:17,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119744655] [2022-01-11 05:33:17,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:17,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:17,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:17,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:17,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119744655] [2022-01-11 05:33:17,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119744655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:17,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:17,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:17,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636211625] [2022-01-11 05:33:17,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:17,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:17,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:17,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:17,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:17,370 INFO L87 Difference]: Start difference. First operand 2381 states and 4424 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:17,581 INFO L93 Difference]: Finished difference Result 5363 states and 10009 transitions. [2022-01-11 05:33:17,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:17,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-11 05:33:17,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:17,602 INFO L225 Difference]: With dead ends: 5363 [2022-01-11 05:33:17,602 INFO L226 Difference]: Without dead ends: 4149 [2022-01-11 05:33:17,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:17,616 INFO L933 BasicCegarLoop]: 4721 mSDtfsCounter, 4364 mSDsluCounter, 3314 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 8035 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:17,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4364 Valid, 8035 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:17,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2022-01-11 05:33:17,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 4149. [2022-01-11 05:33:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4149 states, 4144 states have (on average 1.869449806949807) internal successors, (7747), 4148 states have internal predecessors, (7747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4149 states to 4149 states and 7747 transitions. [2022-01-11 05:33:17,808 INFO L78 Accepts]: Start accepts. Automaton has 4149 states and 7747 transitions. Word has length 55 [2022-01-11 05:33:17,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:17,809 INFO L470 AbstractCegarLoop]: Abstraction has 4149 states and 7747 transitions. [2022-01-11 05:33:17,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,809 INFO L276 IsEmpty]: Start isEmpty. Operand 4149 states and 7747 transitions. [2022-01-11 05:33:17,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 05:33:17,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:17,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:17,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:33:17,812 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:17,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:17,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1404120147, now seen corresponding path program 1 times [2022-01-11 05:33:17,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:17,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712035484] [2022-01-11 05:33:17,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:17,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:17,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:17,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712035484] [2022-01-11 05:33:17,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712035484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:17,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:17,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:17,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958285723] [2022-01-11 05:33:17,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:17,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:17,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:17,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:17,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:17,913 INFO L87 Difference]: Start difference. First operand 4149 states and 7747 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:18,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:18,111 INFO L93 Difference]: Finished difference Result 9980 states and 18674 transitions. [2022-01-11 05:33:18,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:18,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-01-11 05:33:18,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:18,149 INFO L225 Difference]: With dead ends: 9980 [2022-01-11 05:33:18,150 INFO L226 Difference]: Without dead ends: 7576 [2022-01-11 05:33:18,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:18,165 INFO L933 BasicCegarLoop]: 4421 mSDtfsCounter, 4363 mSDsluCounter, 3317 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4363 SdHoareTripleChecker+Valid, 7738 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:18,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4363 Valid, 7738 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:18,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2022-01-11 05:33:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7574. [2022-01-11 05:33:18,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7574 states, 7569 states have (on average 1.8735632183908046) internal successors, (14181), 7573 states have internal predecessors, (14181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7574 states to 7574 states and 14181 transitions. [2022-01-11 05:33:18,468 INFO L78 Accepts]: Start accepts. Automaton has 7574 states and 14181 transitions. Word has length 57 [2022-01-11 05:33:18,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:18,469 INFO L470 AbstractCegarLoop]: Abstraction has 7574 states and 14181 transitions. [2022-01-11 05:33:18,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:18,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7574 states and 14181 transitions. [2022-01-11 05:33:18,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:33:18,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:18,474 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:18,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:33:18,474 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:18,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:18,475 INFO L85 PathProgramCache]: Analyzing trace with hash -986277595, now seen corresponding path program 1 times [2022-01-11 05:33:18,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:18,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001217407] [2022-01-11 05:33:18,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:18,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:18,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:18,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001217407] [2022-01-11 05:33:18,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001217407] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:18,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:18,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:18,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424934836] [2022-01-11 05:33:18,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:18,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:18,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:18,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:18,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:18,592 INFO L87 Difference]: Start difference. First operand 7574 states and 14181 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:18,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:18,905 INFO L93 Difference]: Finished difference Result 18980 states and 35561 transitions. [2022-01-11 05:33:18,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:18,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-01-11 05:33:18,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:18,960 INFO L225 Difference]: With dead ends: 18980 [2022-01-11 05:33:18,960 INFO L226 Difference]: Without dead ends: 14205 [2022-01-11 05:33:18,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:18,971 INFO L933 BasicCegarLoop]: 4421 mSDtfsCounter, 4351 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4351 SdHoareTripleChecker+Valid, 7741 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:18,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4351 Valid, 7741 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:18,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14205 states. [2022-01-11 05:33:19,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14205 to 14201. [2022-01-11 05:33:19,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14201 states, 14196 states have (on average 1.8753874330797409) internal successors, (26623), 14200 states have internal predecessors, (26623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:19,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14201 states to 14201 states and 26623 transitions. [2022-01-11 05:33:19,393 INFO L78 Accepts]: Start accepts. Automaton has 14201 states and 26623 transitions. Word has length 58 [2022-01-11 05:33:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:19,397 INFO L470 AbstractCegarLoop]: Abstraction has 14201 states and 26623 transitions. [2022-01-11 05:33:19,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 14201 states and 26623 transitions. [2022-01-11 05:33:19,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:33:19,400 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:19,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:19,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:33:19,401 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:19,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:19,401 INFO L85 PathProgramCache]: Analyzing trace with hash -509820537, now seen corresponding path program 1 times [2022-01-11 05:33:19,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:19,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563002141] [2022-01-11 05:33:19,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:19,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:19,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:19,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563002141] [2022-01-11 05:33:19,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563002141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:19,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:19,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:19,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435226582] [2022-01-11 05:33:19,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:19,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:19,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:19,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:19,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:19,471 INFO L87 Difference]: Start difference. First operand 14201 states and 26623 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:19,947 INFO L93 Difference]: Finished difference Result 36512 states and 68446 transitions. [2022-01-11 05:33:19,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:19,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2022-01-11 05:33:19,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:20,040 INFO L225 Difference]: With dead ends: 36512 [2022-01-11 05:33:20,040 INFO L226 Difference]: Without dead ends: 27014 [2022-01-11 05:33:20,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:20,071 INFO L933 BasicCegarLoop]: 4421 mSDtfsCounter, 4350 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4350 SdHoareTripleChecker+Valid, 7744 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:20,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4350 Valid, 7744 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:33:20,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27014 states. [2022-01-11 05:33:20,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27014 to 27008. [2022-01-11 05:33:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27008 states, 27003 states have (on average 1.875828611635744) internal successors, (50653), 27007 states have internal predecessors, (50653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:20,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27008 states to 27008 states and 50653 transitions. [2022-01-11 05:33:20,674 INFO L78 Accepts]: Start accepts. Automaton has 27008 states and 50653 transitions. Word has length 59 [2022-01-11 05:33:20,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:20,675 INFO L470 AbstractCegarLoop]: Abstraction has 27008 states and 50653 transitions. [2022-01-11 05:33:20,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:20,676 INFO L276 IsEmpty]: Start isEmpty. Operand 27008 states and 50653 transitions. [2022-01-11 05:33:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:33:20,678 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:20,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:20,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:33:20,680 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:20,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:20,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1375446423, now seen corresponding path program 1 times [2022-01-11 05:33:20,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:20,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638385569] [2022-01-11 05:33:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:20,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:20,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:20,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638385569] [2022-01-11 05:33:20,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638385569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:20,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:20,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:20,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762361579] [2022-01-11 05:33:20,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:20,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:20,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:20,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:20,772 INFO L87 Difference]: Start difference. First operand 27008 states and 50653 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:21,632 INFO L93 Difference]: Finished difference Result 70640 states and 132434 transitions. [2022-01-11 05:33:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:21,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2022-01-11 05:33:21,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:21,784 INFO L225 Difference]: With dead ends: 70640 [2022-01-11 05:33:21,784 INFO L226 Difference]: Without dead ends: 51728 [2022-01-11 05:33:21,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:21,813 INFO L933 BasicCegarLoop]: 4422 mSDtfsCounter, 4349 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4349 SdHoareTripleChecker+Valid, 7748 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:21,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4349 Valid, 7748 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51728 states. [2022-01-11 05:33:22,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51728 to 51720. [2022-01-11 05:33:22,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51720 states, 51715 states have (on average 1.875451996519385) internal successors, (96989), 51719 states have internal predecessors, (96989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:23,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51720 states to 51720 states and 96989 transitions. [2022-01-11 05:33:23,075 INFO L78 Accepts]: Start accepts. Automaton has 51720 states and 96989 transitions. Word has length 60 [2022-01-11 05:33:23,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:23,076 INFO L470 AbstractCegarLoop]: Abstraction has 51720 states and 96989 transitions. [2022-01-11 05:33:23,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 51720 states and 96989 transitions. [2022-01-11 05:33:23,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-11 05:33:23,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:23,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:23,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:33:23,103 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:23,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:23,103 INFO L85 PathProgramCache]: Analyzing trace with hash -735672806, now seen corresponding path program 1 times [2022-01-11 05:33:23,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:23,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319109334] [2022-01-11 05:33:23,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:23,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:23,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:23,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319109334] [2022-01-11 05:33:23,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319109334] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:23,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:23,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:23,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481085492] [2022-01-11 05:33:23,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:23,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:23,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:23,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:23,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:23,165 INFO L87 Difference]: Start difference. First operand 51720 states and 96989 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:24,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:24,702 INFO L93 Difference]: Finished difference Result 105543 states and 197881 transitions. [2022-01-11 05:33:24,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:24,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-11 05:33:24,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:24,819 INFO L225 Difference]: With dead ends: 105543 [2022-01-11 05:33:24,819 INFO L226 Difference]: Without dead ends: 54724 [2022-01-11 05:33:24,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:24,860 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 3422 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3422 SdHoareTripleChecker+Valid, 7078 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:24,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3422 Valid, 7078 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:33:24,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54724 states. [2022-01-11 05:33:25,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54724 to 51720. [2022-01-11 05:33:25,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51720 states, 51715 states have (on average 1.849250700957169) internal successors, (95634), 51719 states have internal predecessors, (95634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:26,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51720 states to 51720 states and 95634 transitions. [2022-01-11 05:33:26,103 INFO L78 Accepts]: Start accepts. Automaton has 51720 states and 95634 transitions. Word has length 102 [2022-01-11 05:33:26,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:26,103 INFO L470 AbstractCegarLoop]: Abstraction has 51720 states and 95634 transitions. [2022-01-11 05:33:26,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:26,104 INFO L276 IsEmpty]: Start isEmpty. Operand 51720 states and 95634 transitions. [2022-01-11 05:33:26,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-11 05:33:26,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:26,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:26,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:33:26,123 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:26,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:26,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1140463646, now seen corresponding path program 1 times [2022-01-11 05:33:26,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:26,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457628654] [2022-01-11 05:33:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:26,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:26,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:26,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457628654] [2022-01-11 05:33:26,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457628654] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:26,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:26,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:26,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944037533] [2022-01-11 05:33:26,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:26,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:26,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:26,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:26,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:26,217 INFO L87 Difference]: Start difference. First operand 51720 states and 95634 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:27,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:27,582 INFO L93 Difference]: Finished difference Result 107238 states and 198432 transitions. [2022-01-11 05:33:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:27,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-01-11 05:33:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:27,688 INFO L225 Difference]: With dead ends: 107238 [2022-01-11 05:33:27,688 INFO L226 Difference]: Without dead ends: 57577 [2022-01-11 05:33:27,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:27,732 INFO L933 BasicCegarLoop]: 5421 mSDtfsCounter, 3147 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 7846 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:27,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3147 Valid, 7846 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:33:27,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57577 states. [2022-01-11 05:33:28,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57577 to 51720. [2022-01-11 05:33:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51720 states, 51715 states have (on average 1.8267233877985112) internal successors, (94469), 51719 states have internal predecessors, (94469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51720 states to 51720 states and 94469 transitions. [2022-01-11 05:33:29,050 INFO L78 Accepts]: Start accepts. Automaton has 51720 states and 94469 transitions. Word has length 107 [2022-01-11 05:33:29,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:29,050 INFO L470 AbstractCegarLoop]: Abstraction has 51720 states and 94469 transitions. [2022-01-11 05:33:29,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:29,051 INFO L276 IsEmpty]: Start isEmpty. Operand 51720 states and 94469 transitions. [2022-01-11 05:33:29,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-11 05:33:29,066 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:29,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:29,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:33:29,067 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:29,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1210855885, now seen corresponding path program 1 times [2022-01-11 05:33:29,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:29,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889509981] [2022-01-11 05:33:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:29,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:29,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:29,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:29,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889509981] [2022-01-11 05:33:29,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889509981] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:29,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:29,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:29,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657650396] [2022-01-11 05:33:29,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:29,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:29,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:29,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:29,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:29,171 INFO L87 Difference]: Start difference. First operand 51720 states and 94469 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:31,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:31,832 INFO L93 Difference]: Finished difference Result 108606 states and 198916 transitions. [2022-01-11 05:33:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:31,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-01-11 05:33:31,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:31,975 INFO L225 Difference]: With dead ends: 108606 [2022-01-11 05:33:31,976 INFO L226 Difference]: Without dead ends: 61183 [2022-01-11 05:33:32,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:32,029 INFO L933 BasicCegarLoop]: 5791 mSDtfsCounter, 2994 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 8506 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:32,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2994 Valid, 8506 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-01-11 05:33:32,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61183 states. [2022-01-11 05:33:33,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61183 to 51720. [2022-01-11 05:33:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51720 states, 51715 states have (on average 1.8088368945180315) internal successors, (93544), 51719 states have internal predecessors, (93544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51720 states to 51720 states and 93544 transitions. [2022-01-11 05:33:33,270 INFO L78 Accepts]: Start accepts. Automaton has 51720 states and 93544 transitions. Word has length 111 [2022-01-11 05:33:33,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:33,270 INFO L470 AbstractCegarLoop]: Abstraction has 51720 states and 93544 transitions. [2022-01-11 05:33:33,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:33,271 INFO L276 IsEmpty]: Start isEmpty. Operand 51720 states and 93544 transitions. [2022-01-11 05:33:33,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-11 05:33:33,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:33,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:33,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:33:33,287 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:33,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash -897991028, now seen corresponding path program 1 times [2022-01-11 05:33:33,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:33,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537734514] [2022-01-11 05:33:33,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:33,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:33,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:33,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:33,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537734514] [2022-01-11 05:33:33,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537734514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:33,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:33,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:33,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010432004] [2022-01-11 05:33:33,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:33,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:33,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:33,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:33,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:33,367 INFO L87 Difference]: Start difference. First operand 51720 states and 93544 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:34,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:34,878 INFO L93 Difference]: Finished difference Result 109794 states and 199780 transitions. [2022-01-11 05:33:34,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:34,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-01-11 05:33:34,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:35,009 INFO L225 Difference]: With dead ends: 109794 [2022-01-11 05:33:35,009 INFO L226 Difference]: Without dead ends: 65434 [2022-01-11 05:33:35,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:35,064 INFO L933 BasicCegarLoop]: 6151 mSDtfsCounter, 2861 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 9156 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:35,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2861 Valid, 9156 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:33:35,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65434 states. [2022-01-11 05:33:36,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65434 to 51720. [2022-01-11 05:33:36,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51720 states, 51715 states have (on average 1.796558058590351) internal successors, (92909), 51719 states have internal predecessors, (92909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51720 states to 51720 states and 92909 transitions. [2022-01-11 05:33:36,307 INFO L78 Accepts]: Start accepts. Automaton has 51720 states and 92909 transitions. Word has length 114 [2022-01-11 05:33:36,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:36,308 INFO L470 AbstractCegarLoop]: Abstraction has 51720 states and 92909 transitions. [2022-01-11 05:33:36,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:36,309 INFO L276 IsEmpty]: Start isEmpty. Operand 51720 states and 92909 transitions. [2022-01-11 05:33:36,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-11 05:33:36,337 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:36,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:36,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:33:36,338 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:36,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:36,338 INFO L85 PathProgramCache]: Analyzing trace with hash -147813658, now seen corresponding path program 1 times [2022-01-11 05:33:36,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:36,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378788825] [2022-01-11 05:33:36,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:36,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:36,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:36,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:36,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378788825] [2022-01-11 05:33:36,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378788825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:36,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:36,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:36,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203676557] [2022-01-11 05:33:36,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:36,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:36,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:36,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:36,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:36,397 INFO L87 Difference]: Start difference. First operand 51720 states and 92909 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:37,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:37,938 INFO L93 Difference]: Finished difference Result 110946 states and 201353 transitions. [2022-01-11 05:33:37,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:37,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-01-11 05:33:37,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:38,066 INFO L225 Difference]: With dead ends: 110946 [2022-01-11 05:33:38,066 INFO L226 Difference]: Without dead ends: 69985 [2022-01-11 05:33:38,110 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:38,110 INFO L933 BasicCegarLoop]: 6501 mSDtfsCounter, 2748 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2748 SdHoareTripleChecker+Valid, 9796 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:38,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2748 Valid, 9796 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:33:38,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69985 states. [2022-01-11 05:33:39,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69985 to 51720. [2022-01-11 05:33:39,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51720 states, 51715 states have (on average 1.7903702987527796) internal successors, (92589), 51719 states have internal predecessors, (92589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:39,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51720 states to 51720 states and 92589 transitions. [2022-01-11 05:33:39,565 INFO L78 Accepts]: Start accepts. Automaton has 51720 states and 92589 transitions. Word has length 116 [2022-01-11 05:33:39,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:39,566 INFO L470 AbstractCegarLoop]: Abstraction has 51720 states and 92589 transitions. [2022-01-11 05:33:39,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:39,566 INFO L276 IsEmpty]: Start isEmpty. Operand 51720 states and 92589 transitions. [2022-01-11 05:33:39,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-11 05:33:39,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:39,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:39,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:33:39,585 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:39,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:39,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1638589301, now seen corresponding path program 1 times [2022-01-11 05:33:39,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:39,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224236670] [2022-01-11 05:33:39,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:39,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:39,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:39,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224236670] [2022-01-11 05:33:39,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224236670] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:39,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:39,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:39,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963918621] [2022-01-11 05:33:39,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:39,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:39,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:39,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:39,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:39,721 INFO L87 Difference]: Start difference. First operand 51720 states and 92589 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:41,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:41,731 INFO L93 Difference]: Finished difference Result 155060 states and 277645 transitions. [2022-01-11 05:33:41,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:41,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-01-11 05:33:41,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:41,975 INFO L225 Difference]: With dead ends: 155060 [2022-01-11 05:33:41,975 INFO L226 Difference]: Without dead ends: 103369 [2022-01-11 05:33:42,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:33:42,033 INFO L933 BasicCegarLoop]: 8453 mSDtfsCounter, 12682 mSDsluCounter, 4246 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12682 SdHoareTripleChecker+Valid, 12699 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:42,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12682 Valid, 12699 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:42,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103369 states. [2022-01-11 05:33:43,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103369 to 51699. [2022-01-11 05:33:43,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51699 states, 51694 states have (on average 1.7905559639416566) internal successors, (92561), 51698 states have internal predecessors, (92561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:44,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51699 states to 51699 states and 92561 transitions. [2022-01-11 05:33:44,034 INFO L78 Accepts]: Start accepts. Automaton has 51699 states and 92561 transitions. Word has length 116 [2022-01-11 05:33:44,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:44,034 INFO L470 AbstractCegarLoop]: Abstraction has 51699 states and 92561 transitions. [2022-01-11 05:33:44,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:44,034 INFO L276 IsEmpty]: Start isEmpty. Operand 51699 states and 92561 transitions. [2022-01-11 05:33:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-11 05:33:44,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:44,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:44,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:33:44,055 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash 620378642, now seen corresponding path program 1 times [2022-01-11 05:33:44,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:44,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628942597] [2022-01-11 05:33:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:44,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:44,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:44,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628942597] [2022-01-11 05:33:44,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628942597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:44,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:44,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:33:44,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549933521] [2022-01-11 05:33:44,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:44,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:33:44,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:44,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:33:44,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:33:44,125 INFO L87 Difference]: Start difference. First operand 51699 states and 92561 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:47,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:47,060 INFO L93 Difference]: Finished difference Result 206724 states and 370163 transitions. [2022-01-11 05:33:47,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:47,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-01-11 05:33:47,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:47,400 INFO L225 Difference]: With dead ends: 206724 [2022-01-11 05:33:47,400 INFO L226 Difference]: Without dead ends: 155048 [2022-01-11 05:33:47,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:47,463 INFO L933 BasicCegarLoop]: 8455 mSDtfsCounter, 12666 mSDsluCounter, 12687 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12666 SdHoareTripleChecker+Valid, 21142 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:47,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12666 Valid, 21142 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:47,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155048 states. [2022-01-11 05:33:49,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155048 to 51701. [2022-01-11 05:33:49,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51701 states, 51696 states have (on average 1.7905253791395852) internal successors, (92563), 51700 states have internal predecessors, (92563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:49,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51701 states to 51701 states and 92563 transitions. [2022-01-11 05:33:49,776 INFO L78 Accepts]: Start accepts. Automaton has 51701 states and 92563 transitions. Word has length 118 [2022-01-11 05:33:49,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:49,776 INFO L470 AbstractCegarLoop]: Abstraction has 51701 states and 92563 transitions. [2022-01-11 05:33:49,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:49,777 INFO L276 IsEmpty]: Start isEmpty. Operand 51701 states and 92563 transitions. [2022-01-11 05:33:49,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-11 05:33:49,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:49,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:49,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:33:49,811 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:49,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:49,811 INFO L85 PathProgramCache]: Analyzing trace with hash 679599379, now seen corresponding path program 1 times [2022-01-11 05:33:49,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:49,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921070756] [2022-01-11 05:33:49,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:49,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:50,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:50,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:50,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921070756] [2022-01-11 05:33:50,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921070756] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:50,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:50,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:33:50,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317712308] [2022-01-11 05:33:50,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:50,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:33:50,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:50,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:33:50,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:50,095 INFO L87 Difference]: Start difference. First operand 51701 states and 92563 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:51,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:51,465 INFO L93 Difference]: Finished difference Result 103378 states and 185099 transitions. [2022-01-11 05:33:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:51,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-01-11 05:33:51,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:51,562 INFO L225 Difference]: With dead ends: 103378 [2022-01-11 05:33:51,562 INFO L226 Difference]: Without dead ends: 51693 [2022-01-11 05:33:51,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:51,597 INFO L933 BasicCegarLoop]: 4231 mSDtfsCounter, 8459 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8459 SdHoareTripleChecker+Valid, 4252 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:51,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8459 Valid, 4252 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:51,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51693 states. [2022-01-11 05:33:53,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51693 to 51693. [2022-01-11 05:33:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51693 states, 51688 states have (on average 1.7905896919981428) internal successors, (92552), 51692 states have internal predecessors, (92552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:53,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51693 states to 51693 states and 92552 transitions. [2022-01-11 05:33:53,520 INFO L78 Accepts]: Start accepts. Automaton has 51693 states and 92552 transitions. Word has length 118 [2022-01-11 05:33:53,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:53,521 INFO L470 AbstractCegarLoop]: Abstraction has 51693 states and 92552 transitions. [2022-01-11 05:33:53,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:53,521 INFO L276 IsEmpty]: Start isEmpty. Operand 51693 states and 92552 transitions. [2022-01-11 05:33:53,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-11 05:33:53,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:53,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:53,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:33:53,552 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash -955810915, now seen corresponding path program 1 times [2022-01-11 05:33:53,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:53,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253806866] [2022-01-11 05:33:53,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:53,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:53,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:53,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253806866] [2022-01-11 05:33:53,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253806866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:53,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:53,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:53,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005648942] [2022-01-11 05:33:53,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:53,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:53,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:53,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:53,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:53,676 INFO L87 Difference]: Start difference. First operand 51693 states and 92552 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:55,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:55,449 INFO L93 Difference]: Finished difference Result 103357 states and 185069 transitions. [2022-01-11 05:33:55,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:55,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-01-11 05:33:55,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:55,549 INFO L225 Difference]: With dead ends: 103357 [2022-01-11 05:33:55,549 INFO L226 Difference]: Without dead ends: 51693 [2022-01-11 05:33:55,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:55,592 INFO L933 BasicCegarLoop]: 4224 mSDtfsCounter, 8432 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8432 SdHoareTripleChecker+Valid, 4274 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:55,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8432 Valid, 4274 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51693 states. [2022-01-11 05:33:57,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51693 to 51693. [2022-01-11 05:33:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51693 states, 51688 states have (on average 1.7905703451478099) internal successors, (92551), 51692 states have internal predecessors, (92551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51693 states to 51693 states and 92551 transitions. [2022-01-11 05:33:57,277 INFO L78 Accepts]: Start accepts. Automaton has 51693 states and 92551 transitions. Word has length 119 [2022-01-11 05:33:57,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:57,278 INFO L470 AbstractCegarLoop]: Abstraction has 51693 states and 92551 transitions. [2022-01-11 05:33:57,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 51693 states and 92551 transitions. [2022-01-11 05:33:57,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-11 05:33:57,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:57,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:57,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:33:57,294 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:57,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:57,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1782849480, now seen corresponding path program 1 times [2022-01-11 05:33:57,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:57,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858937198] [2022-01-11 05:33:57,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:57,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:57,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:57,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:57,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858937198] [2022-01-11 05:33:57,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858937198] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:57,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:57,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:33:57,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149969309] [2022-01-11 05:33:57,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:57,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:57,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:57,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:57,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:57,350 INFO L87 Difference]: Start difference. First operand 51693 states and 92551 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:02,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:02,441 INFO L93 Difference]: Finished difference Result 208932 states and 372890 transitions. [2022-01-11 05:34:02,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:34:02,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-01-11 05:34:02,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:02,713 INFO L225 Difference]: With dead ends: 208932 [2022-01-11 05:34:02,713 INFO L226 Difference]: Without dead ends: 157285 [2022-01-11 05:34:02,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:34:02,775 INFO L933 BasicCegarLoop]: 8197 mSDtfsCounter, 16476 mSDsluCounter, 12320 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16476 SdHoareTripleChecker+Valid, 20517 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:02,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16476 Valid, 20517 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 05:34:02,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157285 states. [2022-01-11 05:34:05,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157285 to 51759. [2022-01-11 05:34:05,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51759 states, 51754 states have (on average 1.789562159446613) internal successors, (92617), 51758 states have internal predecessors, (92617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51759 states to 51759 states and 92617 transitions. [2022-01-11 05:34:05,427 INFO L78 Accepts]: Start accepts. Automaton has 51759 states and 92617 transitions. Word has length 120 [2022-01-11 05:34:05,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:05,427 INFO L470 AbstractCegarLoop]: Abstraction has 51759 states and 92617 transitions. [2022-01-11 05:34:05,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:05,427 INFO L276 IsEmpty]: Start isEmpty. Operand 51759 states and 92617 transitions. [2022-01-11 05:34:05,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 05:34:05,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:05,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:05,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:34:05,440 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:34:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash -813227652, now seen corresponding path program 1 times [2022-01-11 05:34:05,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:05,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943613497] [2022-01-11 05:34:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:05,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:05,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:05,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:05,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943613497] [2022-01-11 05:34:05,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943613497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:05,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:05,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:05,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873307079] [2022-01-11 05:34:05,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:05,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:34:05,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:05,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:34:05,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:34:05,526 INFO L87 Difference]: Start difference. First operand 51759 states and 92617 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:09,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:09,132 INFO L93 Difference]: Finished difference Result 139502 states and 249733 transitions. [2022-01-11 05:34:09,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:34:09,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 05:34:09,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:09,280 INFO L225 Difference]: With dead ends: 139502 [2022-01-11 05:34:09,280 INFO L226 Difference]: Without dead ends: 87776 [2022-01-11 05:34:09,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:34:09,315 INFO L933 BasicCegarLoop]: 5652 mSDtfsCounter, 7133 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7133 SdHoareTripleChecker+Valid, 7959 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:09,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7133 Valid, 7959 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:34:09,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87776 states.