/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_spec13_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:30:18,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:30:18,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:30:18,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:30:18,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:30:18,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:30:18,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:30:18,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:30:18,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:30:18,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:30:18,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:30:18,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:30:18,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:30:18,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:30:18,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:30:18,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:30:18,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:30:18,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:30:18,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:30:18,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:30:18,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:30:18,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:30:18,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:30:18,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:30:18,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:30:18,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:30:18,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:30:18,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:30:18,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:30:18,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:30:18,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:30:18,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:30:18,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:30:18,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:30:18,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:30:18,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:30:18,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:30:18,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:30:18,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:30:18,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:30:18,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:30:18,671 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 05:30:18,685 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:30:18,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:30:18,685 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:30:18,685 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:30:18,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:30:18,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:30:18,686 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:30:18,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:30:18,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:30:18,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:30:18,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:30:18,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:30:18,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:30:18,687 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:30:18,687 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:30:18,687 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:30:18,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:30:18,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:30:18,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:30:18,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:30:18,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:30:18,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:30:18,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:30:18,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:30:18,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:30:18,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:30:18,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:30:18,689 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:30:18,689 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:30:18,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:30:18,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:30:18,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:30:18,690 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:30:18,690 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:30:18,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:30:18,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:30:18,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:30:18,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:30:18,863 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:30:18,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product30.cil.c [2022-01-11 05:30:18,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f41d3dc8e/7013908efd474419838ded74e6fabdbc/FLAGb346bb75a [2022-01-11 05:30:19,400 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:30:19,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product30.cil.c [2022-01-11 05:30:19,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f41d3dc8e/7013908efd474419838ded74e6fabdbc/FLAGb346bb75a [2022-01-11 05:30:19,431 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f41d3dc8e/7013908efd474419838ded74e6fabdbc [2022-01-11 05:30:19,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:30:19,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:30:19,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:19,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:30:19,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:30:19,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:19" (1/1) ... [2022-01-11 05:30:19,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c640eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:19, skipping insertion in model container [2022-01-11 05:30:19,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:19" (1/1) ... [2022-01-11 05:30:19,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:30:19,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:19,876 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_spec13_product30.cil.c[61393,61406] [2022-01-11 05:30:19,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:19,930 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:30:19,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:20,021 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_spec13_product30.cil.c[61393,61406] [2022-01-11 05:30:20,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:20,044 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:30:20,102 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_spec13_product30.cil.c[61393,61406] [2022-01-11 05:30:20,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:20,129 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:30:20,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20 WrapperNode [2022-01-11 05:30:20,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:20,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:30:20,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:30:20,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:30:20,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:20,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:20,710 INFO L137 Inliner]: procedures = 95, calls = 346, calls flagged for inlining = 198, calls inlined = 1875, statements flattened = 66503 [2022-01-11 05:30:20,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:30:20,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:30:20,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:30:20,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:30:20,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:20,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:20,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:20,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:21,110 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:21,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:21,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:21,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:30:21,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:30:21,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:30:21,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:30:21,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (1/1) ... [2022-01-11 05:30:21,735 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:30:21,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:30:21,752 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 05:30:21,771 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 05:30:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:30:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:30:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:30:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:30:21,978 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:30:21,979 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:30:40,403 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:30:40,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:30:40,479 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2022-01-11 05:30:40,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:30:40 BoogieIcfgContainer [2022-01-11 05:30:40,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:30:40,496 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:30:40,496 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:30:40,497 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:30:40,499 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:30:40" (1/1) ... [2022-01-11 05:30:43,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:30:43 BasicIcfg [2022-01-11 05:30:43,104 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:30:43,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:30:43,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:30:43,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:30:43,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:30:19" (1/4) ... [2022-01-11 05:30:43,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d8f0c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:30:43, skipping insertion in model container [2022-01-11 05:30:43,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:20" (2/4) ... [2022-01-11 05:30:43,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d8f0c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:30:43, skipping insertion in model container [2022-01-11 05:30:43,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:30:40" (3/4) ... [2022-01-11 05:30:43,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d8f0c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:30:43, skipping insertion in model container [2022-01-11 05:30:43,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:30:43" (4/4) ... [2022-01-11 05:30:43,111 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product30.cil.cTransformedIcfg [2022-01-11 05:30:43,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:30:43,115 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:30:43,184 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:30:43,190 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 05:30:43,190 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:30:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 17942 states, 17931 states have (on average 1.8813786180358039) internal successors, (33735), 17941 states have internal predecessors, (33735), 0 states have call successors, (0), 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 05:30:43,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 05:30:43,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:43,387 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] [2022-01-11 05:30:43,388 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:43,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:43,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1125376047, now seen corresponding path program 1 times [2022-01-11 05:30:43,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:43,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459718938] [2022-01-11 05:30:43,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:43,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:43,634 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 05:30:43,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:43,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459718938] [2022-01-11 05:30:43,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459718938] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:43,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:43,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:43,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201288165] [2022-01-11 05:30:43,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:43,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:43,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:43,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:43,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:43,740 INFO L87 Difference]: Start difference. First operand has 17942 states, 17931 states have (on average 1.8813786180358039) internal successors, (33735), 17941 states have internal predecessors, (33735), 0 states have call successors, (0), 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 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 05:30:44,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:44,418 INFO L93 Difference]: Finished difference Result 43048 states and 80952 transitions. [2022-01-11 05:30:44,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:44,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2022-01-11 05:30:44,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:44,551 INFO L225 Difference]: With dead ends: 43048 [2022-01-11 05:30:44,551 INFO L226 Difference]: Without dead ends: 25105 [2022-01-11 05:30:44,594 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 05:30:44,598 INFO L933 BasicCegarLoop]: 47017 mSDtfsCounter, 33579 mSDsluCounter, 13465 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33579 SdHoareTripleChecker+Valid, 60482 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:44,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33579 Valid, 60482 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:30:44,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25105 states. [2022-01-11 05:30:45,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25105 to 17925. [2022-01-11 05:30:45,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17925 states, 17915 states have (on average 1.874462740720067) internal successors, (33581), 17924 states have internal predecessors, (33581), 0 states have call successors, (0), 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 05:30:45,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17925 states to 17925 states and 33581 transitions. [2022-01-11 05:30:45,450 INFO L78 Accepts]: Start accepts. Automaton has 17925 states and 33581 transitions. Word has length 46 [2022-01-11 05:30:45,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:45,451 INFO L470 AbstractCegarLoop]: Abstraction has 17925 states and 33581 transitions. [2022-01-11 05:30:45,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 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 05:30:45,451 INFO L276 IsEmpty]: Start isEmpty. Operand 17925 states and 33581 transitions. [2022-01-11 05:30:45,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 05:30:45,454 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:45,454 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] [2022-01-11 05:30:45,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:30:45,455 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:45,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:45,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1870534438, now seen corresponding path program 1 times [2022-01-11 05:30:45,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:45,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569178823] [2022-01-11 05:30:45,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:45,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:45,566 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 05:30:45,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:45,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569178823] [2022-01-11 05:30:45,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569178823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:45,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:45,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:45,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501780937] [2022-01-11 05:30:45,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:45,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:45,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:45,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:45,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:45,569 INFO L87 Difference]: Start difference. First operand 17925 states and 33581 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 05:30:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:46,187 INFO L93 Difference]: Finished difference Result 42945 states and 80451 transitions. [2022-01-11 05:30:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:46,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2022-01-11 05:30:46,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:46,257 INFO L225 Difference]: With dead ends: 42945 [2022-01-11 05:30:46,257 INFO L226 Difference]: Without dead ends: 25069 [2022-01-11 05:30:46,285 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 05:30:46,286 INFO L933 BasicCegarLoop]: 46789 mSDtfsCounter, 33529 mSDsluCounter, 13406 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33529 SdHoareTripleChecker+Valid, 60195 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:46,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33529 Valid, 60195 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:46,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25069 states. [2022-01-11 05:30:46,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25069 to 17925. [2022-01-11 05:30:46,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17925 states, 17915 states have (on average 1.8739045492603963) internal successors, (33571), 17924 states have internal predecessors, (33571), 0 states have call successors, (0), 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 05:30:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17925 states to 17925 states and 33571 transitions. [2022-01-11 05:30:46,758 INFO L78 Accepts]: Start accepts. Automaton has 17925 states and 33571 transitions. Word has length 48 [2022-01-11 05:30:46,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:46,759 INFO L470 AbstractCegarLoop]: Abstraction has 17925 states and 33571 transitions. [2022-01-11 05:30:46,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 05:30:46,762 INFO L276 IsEmpty]: Start isEmpty. Operand 17925 states and 33571 transitions. [2022-01-11 05:30:46,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 05:30:46,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:46,769 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] [2022-01-11 05:30:46,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:30:46,770 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:46,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:46,770 INFO L85 PathProgramCache]: Analyzing trace with hash -922092143, now seen corresponding path program 1 times [2022-01-11 05:30:46,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:46,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704284790] [2022-01-11 05:30:46,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:46,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:46,843 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 05:30:46,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:46,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704284790] [2022-01-11 05:30:46,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704284790] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:46,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:46,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:46,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311400490] [2022-01-11 05:30:46,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:46,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:46,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:46,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:46,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:46,846 INFO L87 Difference]: Start difference. First operand 17925 states and 33571 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 05:30:47,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:47,283 INFO L93 Difference]: Finished difference Result 43011 states and 80562 transitions. [2022-01-11 05:30:47,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:47,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-01-11 05:30:47,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:47,356 INFO L225 Difference]: With dead ends: 43011 [2022-01-11 05:30:47,356 INFO L226 Difference]: Without dead ends: 25150 [2022-01-11 05:30:47,385 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 05:30:47,386 INFO L933 BasicCegarLoop]: 47089 mSDtfsCounter, 33537 mSDsluCounter, 13534 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33537 SdHoareTripleChecker+Valid, 60623 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:47,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33537 Valid, 60623 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:30:47,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25150 states. [2022-01-11 05:30:47,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25150 to 17925. [2022-01-11 05:30:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17925 states, 17915 states have (on average 1.8738487301144293) internal successors, (33570), 17924 states have internal predecessors, (33570), 0 states have call successors, (0), 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 05:30:47,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17925 states to 17925 states and 33570 transitions. [2022-01-11 05:30:47,842 INFO L78 Accepts]: Start accepts. Automaton has 17925 states and 33570 transitions. Word has length 50 [2022-01-11 05:30:47,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:47,842 INFO L470 AbstractCegarLoop]: Abstraction has 17925 states and 33570 transitions. [2022-01-11 05:30:47,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 05:30:47,842 INFO L276 IsEmpty]: Start isEmpty. Operand 17925 states and 33570 transitions. [2022-01-11 05:30:47,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:30:47,844 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:47,845 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] [2022-01-11 05:30:47,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:30:47,845 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:47,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:47,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1164039005, now seen corresponding path program 1 times [2022-01-11 05:30:47,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:47,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046641110] [2022-01-11 05:30:47,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:47,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:47,884 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 05:30:47,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:47,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046641110] [2022-01-11 05:30:47,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046641110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:47,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:47,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:47,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601359973] [2022-01-11 05:30:47,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:47,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:47,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:47,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:47,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:47,886 INFO L87 Difference]: Start difference. First operand 17925 states and 33570 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 05:30:48,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:48,428 INFO L93 Difference]: Finished difference Result 42910 states and 80369 transitions. [2022-01-11 05:30:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:48,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-11 05:30:48,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:48,491 INFO L225 Difference]: With dead ends: 42910 [2022-01-11 05:30:48,491 INFO L226 Difference]: Without dead ends: 25085 [2022-01-11 05:30:48,516 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 05:30:48,517 INFO L933 BasicCegarLoop]: 46918 mSDtfsCounter, 33407 mSDsluCounter, 13440 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33407 SdHoareTripleChecker+Valid, 60358 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:48,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33407 Valid, 60358 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:30:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25085 states. [2022-01-11 05:30:48,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25085 to 17925. [2022-01-11 05:30:49,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17925 states, 17915 states have (on average 1.873569634384594) internal successors, (33565), 17924 states have internal predecessors, (33565), 0 states have call successors, (0), 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 05:30:49,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17925 states to 17925 states and 33565 transitions. [2022-01-11 05:30:49,055 INFO L78 Accepts]: Start accepts. Automaton has 17925 states and 33565 transitions. Word has length 51 [2022-01-11 05:30:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:49,055 INFO L470 AbstractCegarLoop]: Abstraction has 17925 states and 33565 transitions. [2022-01-11 05:30:49,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 05:30:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand 17925 states and 33565 transitions. [2022-01-11 05:30:49,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:30:49,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:49,058 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 05:30:49,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:30:49,058 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:49,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1144782808, now seen corresponding path program 1 times [2022-01-11 05:30:49,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:49,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958096499] [2022-01-11 05:30:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:49,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:49,115 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 05:30:49,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:49,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958096499] [2022-01-11 05:30:49,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958096499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:49,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:49,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:49,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495379078] [2022-01-11 05:30:49,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:49,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:49,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:49,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:49,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:49,118 INFO L87 Difference]: Start difference. First operand 17925 states and 33565 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 05:30:49,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:49,943 INFO L93 Difference]: Finished difference Result 45878 states and 85990 transitions. [2022-01-11 05:30:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:49,943 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 05:30:49,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:50,033 INFO L225 Difference]: With dead ends: 45878 [2022-01-11 05:30:50,033 INFO L226 Difference]: Without dead ends: 31528 [2022-01-11 05:30:50,055 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 05:30:50,058 INFO L933 BasicCegarLoop]: 59081 mSDtfsCounter, 26437 mSDsluCounter, 32590 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26437 SdHoareTripleChecker+Valid, 91671 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:50,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26437 Valid, 91671 Invalid, 102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:50,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31528 states. [2022-01-11 05:30:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31528 to 17795. [2022-01-11 05:30:50,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17795 states, 17785 states have (on average 1.8726454877705931) internal successors, (33305), 17794 states have internal predecessors, (33305), 0 states have call successors, (0), 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 05:30:50,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17795 states to 17795 states and 33305 transitions. [2022-01-11 05:30:50,575 INFO L78 Accepts]: Start accepts. Automaton has 17795 states and 33305 transitions. Word has length 52 [2022-01-11 05:30:50,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:50,575 INFO L470 AbstractCegarLoop]: Abstraction has 17795 states and 33305 transitions. [2022-01-11 05:30:50,575 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 05:30:50,576 INFO L276 IsEmpty]: Start isEmpty. Operand 17795 states and 33305 transitions. [2022-01-11 05:30:50,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 05:30:50,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:50,578 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] [2022-01-11 05:30:50,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:30:50,578 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:50,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1890167755, now seen corresponding path program 1 times [2022-01-11 05:30:50,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:50,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243106323] [2022-01-11 05:30:50,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:50,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:50,647 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 05:30:50,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:50,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243106323] [2022-01-11 05:30:50,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243106323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:50,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:50,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:50,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169216963] [2022-01-11 05:30:50,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:50,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:50,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:50,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:50,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:50,649 INFO L87 Difference]: Start difference. First operand 17795 states and 33305 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 05:30:51,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:51,814 INFO L93 Difference]: Finished difference Result 59418 states and 111424 transitions. [2022-01-11 05:30:51,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:30:51,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-01-11 05:30:51,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:51,900 INFO L225 Difference]: With dead ends: 59418 [2022-01-11 05:30:51,901 INFO L226 Difference]: Without dead ends: 45211 [2022-01-11 05:30:51,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 05:30:51,926 INFO L933 BasicCegarLoop]: 84777 mSDtfsCounter, 52482 mSDsluCounter, 90613 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52482 SdHoareTripleChecker+Valid, 175390 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:51,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52482 Valid, 175390 Invalid, 115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:52,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45211 states. [2022-01-11 05:30:52,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45211 to 17795. [2022-01-11 05:30:52,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17795 states, 17785 states have (on average 1.8720832161934213) internal successors, (33295), 17794 states have internal predecessors, (33295), 0 states have call successors, (0), 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 05:30:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17795 states to 17795 states and 33295 transitions. [2022-01-11 05:30:52,509 INFO L78 Accepts]: Start accepts. Automaton has 17795 states and 33295 transitions. Word has length 54 [2022-01-11 05:30:52,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:52,510 INFO L470 AbstractCegarLoop]: Abstraction has 17795 states and 33295 transitions. [2022-01-11 05:30:52,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 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 05:30:52,511 INFO L276 IsEmpty]: Start isEmpty. Operand 17795 states and 33295 transitions. [2022-01-11 05:30:52,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:30:52,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:52,513 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 05:30:52,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:30:52,514 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:52,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash 499904889, now seen corresponding path program 1 times [2022-01-11 05:30:52,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:52,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82732989] [2022-01-11 05:30:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:52,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:52,593 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 05:30:52,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:52,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82732989] [2022-01-11 05:30:52,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82732989] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:52,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:52,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:52,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955546948] [2022-01-11 05:30:52,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:52,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:52,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:52,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:52,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:52,595 INFO L87 Difference]: Start difference. First operand 17795 states and 33295 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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 05:30:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:53,704 INFO L93 Difference]: Finished difference Result 60373 states and 112973 transitions. [2022-01-11 05:30:53,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:30:53,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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 05:30:53,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:53,777 INFO L225 Difference]: With dead ends: 60373 [2022-01-11 05:30:53,777 INFO L226 Difference]: Without dead ends: 42609 [2022-01-11 05:30:53,804 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 05:30:53,806 INFO L933 BasicCegarLoop]: 66356 mSDtfsCounter, 59834 mSDsluCounter, 99526 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59834 SdHoareTripleChecker+Valid, 165882 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:53,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59834 Valid, 165882 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:53,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42609 states. [2022-01-11 05:30:54,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42609 to 17803. [2022-01-11 05:30:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17803 states, 17793 states have (on average 1.8716911144832238) internal successors, (33303), 17802 states have internal predecessors, (33303), 0 states have call successors, (0), 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 05:30:54,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17803 states to 17803 states and 33303 transitions. [2022-01-11 05:30:54,523 INFO L78 Accepts]: Start accepts. Automaton has 17803 states and 33303 transitions. Word has length 55 [2022-01-11 05:30:54,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:54,523 INFO L470 AbstractCegarLoop]: Abstraction has 17803 states and 33303 transitions. [2022-01-11 05:30:54,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 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 05:30:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 17803 states and 33303 transitions. [2022-01-11 05:30:54,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:30:54,527 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:54,527 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] [2022-01-11 05:30:54,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:30:54,527 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:54,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:54,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1718332122, now seen corresponding path program 1 times [2022-01-11 05:30:54,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:54,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096868042] [2022-01-11 05:30:54,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:54,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:30:54,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:54,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096868042] [2022-01-11 05:30:54,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096868042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:54,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:54,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:54,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122265493] [2022-01-11 05:30:54,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:54,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:54,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:54,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:54,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:54,590 INFO L87 Difference]: Start difference. First operand 17803 states and 33303 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 05:30:55,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:55,286 INFO L93 Difference]: Finished difference Result 42651 states and 79795 transitions. [2022-01-11 05:30:55,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:30:55,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-01-11 05:30:55,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:55,353 INFO L225 Difference]: With dead ends: 42651 [2022-01-11 05:30:55,354 INFO L226 Difference]: Without dead ends: 24861 [2022-01-11 05:30:55,373 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 05:30:55,373 INFO L933 BasicCegarLoop]: 46499 mSDtfsCounter, 26697 mSDsluCounter, 33141 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26697 SdHoareTripleChecker+Valid, 79640 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:55,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26697 Valid, 79640 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:30:55,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24861 states. [2022-01-11 05:30:55,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24861 to 17751. [2022-01-11 05:30:55,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17751 states, 17741 states have (on average 1.8714841327997294) internal successors, (33202), 17750 states have internal predecessors, (33202), 0 states have call successors, (0), 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 05:30:55,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17751 states to 17751 states and 33202 transitions. [2022-01-11 05:30:55,917 INFO L78 Accepts]: Start accepts. Automaton has 17751 states and 33202 transitions. Word has length 56 [2022-01-11 05:30:55,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:55,917 INFO L470 AbstractCegarLoop]: Abstraction has 17751 states and 33202 transitions. [2022-01-11 05:30:55,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 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 05:30:55,917 INFO L276 IsEmpty]: Start isEmpty. Operand 17751 states and 33202 transitions. [2022-01-11 05:30:55,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-11 05:30:55,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:55,920 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 05:30:55,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:30:55,920 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:55,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:55,920 INFO L85 PathProgramCache]: Analyzing trace with hash -170951220, now seen corresponding path program 1 times [2022-01-11 05:30:55,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:55,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855802364] [2022-01-11 05:30:55,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:55,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:55,993 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 05:30:55,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:55,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855802364] [2022-01-11 05:30:55,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855802364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:55,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:55,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:30:55,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802092499] [2022-01-11 05:30:55,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:55,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:30:55,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:55,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:30:55,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:30:55,997 INFO L87 Difference]: Start difference. First operand 17751 states and 33202 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 05:30:58,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:58,617 INFO L93 Difference]: Finished difference Result 81358 states and 152245 transitions. [2022-01-11 05:30:58,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:30:58,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 05:30:58,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:58,747 INFO L225 Difference]: With dead ends: 81358 [2022-01-11 05:30:58,747 INFO L226 Difference]: Without dead ends: 63627 [2022-01-11 05:30:58,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:30:58,776 INFO L933 BasicCegarLoop]: 105768 mSDtfsCounter, 138948 mSDsluCounter, 119036 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138948 SdHoareTripleChecker+Valid, 224804 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:58,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138948 Valid, 224804 Invalid, 108 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [20 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:58,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63627 states. [2022-01-11 05:30:59,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63627 to 17742. [2022-01-11 05:30:59,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17742 states, 17732 states have (on average 1.871193322806226) internal successors, (33180), 17741 states have internal predecessors, (33180), 0 states have call successors, (0), 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 05:30:59,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17742 states to 17742 states and 33180 transitions. [2022-01-11 05:30:59,490 INFO L78 Accepts]: Start accepts. Automaton has 17742 states and 33180 transitions. Word has length 57 [2022-01-11 05:30:59,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:59,490 INFO L470 AbstractCegarLoop]: Abstraction has 17742 states and 33180 transitions. [2022-01-11 05:30:59,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 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 05:30:59,490 INFO L276 IsEmpty]: Start isEmpty. Operand 17742 states and 33180 transitions. [2022-01-11 05:30:59,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:30:59,493 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:59,493 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 05:30:59,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:30:59,493 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:30:59,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:59,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1929301208, now seen corresponding path program 1 times [2022-01-11 05:30:59,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:59,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287870494] [2022-01-11 05:30:59,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:59,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:59,545 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 05:30:59,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:59,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287870494] [2022-01-11 05:30:59,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287870494] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:59,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:59,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:30:59,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690710407] [2022-01-11 05:30:59,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:59,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:30:59,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:59,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:30:59,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:30:59,547 INFO L87 Difference]: Start difference. First operand 17742 states and 33180 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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 05:31:01,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:01,360 INFO L93 Difference]: Finished difference Result 56604 states and 105905 transitions. [2022-01-11 05:31:01,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:31:01,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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 05:31:01,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:01,425 INFO L225 Difference]: With dead ends: 56604 [2022-01-11 05:31:01,425 INFO L226 Difference]: Without dead ends: 38888 [2022-01-11 05:31:01,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:31:01,449 INFO L933 BasicCegarLoop]: 72682 mSDtfsCounter, 99443 mSDsluCounter, 59362 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99443 SdHoareTripleChecker+Valid, 132044 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:01,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99443 Valid, 132044 Invalid, 104 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:01,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38888 states. [2022-01-11 05:31:02,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38888 to 17744. [2022-01-11 05:31:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17744 states, 17734 states have (on average 1.8709822938987255) internal successors, (33180), 17743 states have internal predecessors, (33180), 0 states have call successors, (0), 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 05:31:02,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17744 states to 17744 states and 33180 transitions. [2022-01-11 05:31:02,189 INFO L78 Accepts]: Start accepts. Automaton has 17744 states and 33180 transitions. Word has length 58 [2022-01-11 05:31:02,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:02,189 INFO L470 AbstractCegarLoop]: Abstraction has 17744 states and 33180 transitions. [2022-01-11 05:31:02,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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 05:31:02,189 INFO L276 IsEmpty]: Start isEmpty. Operand 17744 states and 33180 transitions. [2022-01-11 05:31:02,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:31:02,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:02,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:31:02,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:31:02,192 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:31:02,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:02,192 INFO L85 PathProgramCache]: Analyzing trace with hash -392665501, now seen corresponding path program 1 times [2022-01-11 05:31:02,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:02,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944244696] [2022-01-11 05:31:02,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:02,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:31:02,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:02,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944244696] [2022-01-11 05:31:02,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944244696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:02,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:02,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:31:02,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908448423] [2022-01-11 05:31:02,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:02,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:31:02,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:02,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:31:02,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:31:02,240 INFO L87 Difference]: Start difference. First operand 17744 states and 33180 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 05:31:05,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:05,185 INFO L93 Difference]: Finished difference Result 77730 states and 145447 transitions. [2022-01-11 05:31:05,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:31:05,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 05:31:05,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:05,289 INFO L225 Difference]: With dead ends: 77730 [2022-01-11 05:31:05,289 INFO L226 Difference]: Without dead ends: 60012 [2022-01-11 05:31:05,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:31:05,316 INFO L933 BasicCegarLoop]: 112231 mSDtfsCounter, 132562 mSDsluCounter, 118685 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132562 SdHoareTripleChecker+Valid, 230916 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:05,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132562 Valid, 230916 Invalid, 112 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60012 states. [2022-01-11 05:31:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60012 to 17747. [2022-01-11 05:31:06,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17747 states, 17737 states have (on average 1.8707222190900377) internal successors, (33181), 17746 states have internal predecessors, (33181), 0 states have call successors, (0), 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 05:31:06,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17747 states to 17747 states and 33181 transitions. [2022-01-11 05:31:06,235 INFO L78 Accepts]: Start accepts. Automaton has 17747 states and 33181 transitions. Word has length 59 [2022-01-11 05:31:06,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:06,235 INFO L470 AbstractCegarLoop]: Abstraction has 17747 states and 33181 transitions. [2022-01-11 05:31:06,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 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 05:31:06,236 INFO L276 IsEmpty]: Start isEmpty. Operand 17747 states and 33181 transitions. [2022-01-11 05:31:06,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:31:06,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:06,238 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 05:31:06,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:31:06,239 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:31:06,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:06,239 INFO L85 PathProgramCache]: Analyzing trace with hash 604621205, now seen corresponding path program 1 times [2022-01-11 05:31:06,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:06,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841313807] [2022-01-11 05:31:06,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:06,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:06,287 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 05:31:06,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:06,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841313807] [2022-01-11 05:31:06,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841313807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:06,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:06,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:31:06,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362259161] [2022-01-11 05:31:06,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:06,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:31:06,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:06,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:31:06,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:31:06,288 INFO L87 Difference]: Start difference. First operand 17747 states and 33181 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 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 05:31:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:10,850 INFO L93 Difference]: Finished difference Result 98857 states and 184989 transitions. [2022-01-11 05:31:10,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:31:10,850 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 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 05:31:10,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:11,140 INFO L225 Difference]: With dead ends: 98857 [2022-01-11 05:31:11,141 INFO L226 Difference]: Without dead ends: 81136 [2022-01-11 05:31:11,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:31:11,165 INFO L933 BasicCegarLoop]: 151771 mSDtfsCounter, 125651 mSDsluCounter, 257107 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125651 SdHoareTripleChecker+Valid, 408878 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:11,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125651 Valid, 408878 Invalid, 146 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [18 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:31:11,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81136 states. [2022-01-11 05:31:12,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81136 to 17751. [2022-01-11 05:31:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17751 states, 17741 states have (on average 1.8704131672397273) internal successors, (33183), 17750 states have internal predecessors, (33183), 0 states have call successors, (0), 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 05:31:12,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17751 states to 17751 states and 33183 transitions. [2022-01-11 05:31:12,083 INFO L78 Accepts]: Start accepts. Automaton has 17751 states and 33183 transitions. Word has length 60 [2022-01-11 05:31:12,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:12,083 INFO L470 AbstractCegarLoop]: Abstraction has 17751 states and 33183 transitions. [2022-01-11 05:31:12,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 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 05:31:12,083 INFO L276 IsEmpty]: Start isEmpty. Operand 17751 states and 33183 transitions. [2022-01-11 05:31:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:31:12,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:12,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:31:12,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:31:12,086 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:31:12,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:12,086 INFO L85 PathProgramCache]: Analyzing trace with hash 2061958064, now seen corresponding path program 1 times [2022-01-11 05:31:12,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:12,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703860463] [2022-01-11 05:31:12,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:12,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:12,128 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 05:31:12,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:12,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703860463] [2022-01-11 05:31:12,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703860463] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:12,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:12,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:31:12,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934401650] [2022-01-11 05:31:12,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:12,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:31:12,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:12,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:31:12,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:31:12,130 INFO L87 Difference]: Start difference. First operand 17751 states and 33183 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 05:31:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:31:14,104 INFO L93 Difference]: Finished difference Result 56587 states and 105861 transitions. [2022-01-11 05:31:14,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:31:14,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2022-01-11 05:31:14,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:31:14,169 INFO L225 Difference]: With dead ends: 56587 [2022-01-11 05:31:14,170 INFO L226 Difference]: Without dead ends: 38895 [2022-01-11 05:31:14,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:14,193 INFO L933 BasicCegarLoop]: 52921 mSDtfsCounter, 86044 mSDsluCounter, 59406 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86044 SdHoareTripleChecker+Valid, 112327 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:31:14,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86044 Valid, 112327 Invalid, 49 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:31:14,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38895 states. [2022-01-11 05:31:15,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38895 to 17754. [2022-01-11 05:31:15,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17754 states, 17744 states have (on average 1.8702660054102795) internal successors, (33186), 17753 states have internal predecessors, (33186), 0 states have call successors, (0), 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 05:31:15,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17754 states to 17754 states and 33186 transitions. [2022-01-11 05:31:15,208 INFO L78 Accepts]: Start accepts. Automaton has 17754 states and 33186 transitions. Word has length 61 [2022-01-11 05:31:15,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:31:15,208 INFO L470 AbstractCegarLoop]: Abstraction has 17754 states and 33186 transitions. [2022-01-11 05:31:15,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 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 05:31:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 17754 states and 33186 transitions. [2022-01-11 05:31:15,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-11 05:31:15,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:31:15,211 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] [2022-01-11 05:31:15,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:31:15,211 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:31:15,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:31:15,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1510860838, now seen corresponding path program 1 times [2022-01-11 05:31:15,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:31:15,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123421181] [2022-01-11 05:31:15,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:31:15,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:31:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:31:15,264 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 05:31:15,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:31:15,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123421181] [2022-01-11 05:31:15,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123421181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:31:15,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:31:15,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:31:15,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066504542] [2022-01-11 05:31:15,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:31:15,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:31:15,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:31:15,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:31:15,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:31:15,265 INFO L87 Difference]: Start difference. First operand 17754 states and 33186 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)