/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_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:30:10,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:30:10,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:30:10,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:30:10,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:30:10,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:30:10,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:30:10,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:30:10,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:30:10,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:30:10,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:30:10,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:30:10,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:30:10,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:30:10,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:30:10,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:30:10,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:30:10,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:30:10,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:30:10,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:30:10,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:30:10,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:30:10,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:30:10,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:30:10,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:30:10,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:30:10,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:30:10,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:30:10,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:30:10,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:30:10,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:30:10,691 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:30:10,693 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:30:10,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:30:10,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:30:10,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:30:10,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:30:10,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:30:10,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:30:10,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:30:10,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:30:10,698 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 05:30:10,730 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:30:10,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:30:10,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:30:10,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:30:10,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:30:10,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:30:10,733 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:30:10,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:30:10,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:30:10,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:30:10,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:30:10,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:30:10,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:30:10,734 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:30:10,734 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:30:10,734 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:30:10,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:30:10,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:30:10,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:30:10,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:30:10,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:30:10,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:30:10,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:30:10,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:30:10,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:30:10,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:30:10,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:30:10,737 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:30:10,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:30:10,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:30:10,737 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:30:10,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:30:10,738 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:30:10,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:30:10,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:30:10,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:30:10,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:30:10,977 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:30:10,978 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:30:10,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c [2022-01-11 05:30:11,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5882b0a09/80e6b3b2ae674f92958b710bed782dfa/FLAGec780b8e1 [2022-01-11 05:30:11,568 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:30:11,569 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_product24.cil.c [2022-01-11 05:30:11,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5882b0a09/80e6b3b2ae674f92958b710bed782dfa/FLAGec780b8e1 [2022-01-11 05:30:12,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5882b0a09/80e6b3b2ae674f92958b710bed782dfa [2022-01-11 05:30:12,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:30:12,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:30:12,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:12,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:30:12,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:30:12,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:12,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f650e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12, skipping insertion in model container [2022-01-11 05:30:12,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:12,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:30:12,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:12,612 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_product24.cil.c[51490,51503] [2022-01-11 05:30:12,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:12,665 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:30:12,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:30:12,745 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_product24.cil.c[51490,51503] [2022-01-11 05:30:12,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:12,765 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:30:12,824 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_product24.cil.c[51490,51503] [2022-01-11 05:30:12,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:30:12,868 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:30:12,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12 WrapperNode [2022-01-11 05:30:12,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:30:12,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:30:12,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:30:12,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:30:12,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:12,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:13,749 INFO L137 Inliner]: procedures = 98, calls = 352, calls flagged for inlining = 204, calls inlined = 1935, statements flattened = 67284 [2022-01-11 05:30:13,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:30:13,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:30:13,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:30:13,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:30:13,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:13,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:13,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:13,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:14,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:14,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:15,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:15,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:30:15,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:30:15,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:30:15,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:30:15,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (1/1) ... [2022-01-11 05:30:15,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:30:15,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:30:15,222 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 05:30:15,235 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 05:30:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:30:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:30:15,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:30:15,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:30:15,475 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:30:15,476 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:30:37,498 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:30:37,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:30:37,591 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2022-01-11 05:30:37,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:30:37 BoogieIcfgContainer [2022-01-11 05:30:37,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:30:37,614 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:30:37,614 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:30:37,615 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:30:37,618 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:30:37" (1/1) ... [2022-01-11 05:30:41,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:30:41 BasicIcfg [2022-01-11 05:30:41,478 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:30:41,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:30:41,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:30:41,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:30:41,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:30:12" (1/4) ... [2022-01-11 05:30:41,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccbef85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:30:41, skipping insertion in model container [2022-01-11 05:30:41,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:30:12" (2/4) ... [2022-01-11 05:30:41,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccbef85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:30:41, skipping insertion in model container [2022-01-11 05:30:41,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:30:37" (3/4) ... [2022-01-11 05:30:41,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ccbef85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:30:41, skipping insertion in model container [2022-01-11 05:30:41,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:30:41" (4/4) ... [2022-01-11 05:30:41,484 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product24.cil.cTransformedIcfg [2022-01-11 05:30:41,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:30:41,489 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:30:41,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:30:41,593 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 05:30:41,593 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:30:41,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 17952 states, 17941 states have (on average 1.8781004403322) internal successors, (33695), 17951 states have internal predecessors, (33695), 0 states have call successors, (0), 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 05:30:41,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 05:30:41,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:41,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:30:41,859 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 05:30:41,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:41,864 INFO L85 PathProgramCache]: Analyzing trace with hash 379297150, now seen corresponding path program 1 times [2022-01-11 05:30:41,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:41,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894272082] [2022-01-11 05:30:41,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:41,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:42,260 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 05:30:42,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:42,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894272082] [2022-01-11 05:30:42,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894272082] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:42,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:42,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:42,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274508300] [2022-01-11 05:30:42,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:42,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:42,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:42,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:42,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:42,386 INFO L87 Difference]: Start difference. First operand has 17952 states, 17941 states have (on average 1.8781004403322) internal successors, (33695), 17951 states have internal predecessors, (33695), 0 states have call successors, (0), 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 05:30:43,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:43,641 INFO L93 Difference]: Finished difference Result 43072 states and 80856 transitions. [2022-01-11 05:30:43,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:43,646 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 05:30:43,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:43,832 INFO L225 Difference]: With dead ends: 43072 [2022-01-11 05:30:43,832 INFO L226 Difference]: Without dead ends: 25119 [2022-01-11 05:30:43,876 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 05:30:43,879 INFO L933 BasicCegarLoop]: 46961 mSDtfsCounter, 33539 mSDsluCounter, 13449 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33539 SdHoareTripleChecker+Valid, 60410 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:43,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33539 Valid, 60410 Invalid, 37 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:30:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25119 states. [2022-01-11 05:30:44,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25119 to 17935. [2022-01-11 05:30:44,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17935 states, 17925 states have (on average 1.8711854951185496) internal successors, (33541), 17934 states have internal predecessors, (33541), 0 states have call successors, (0), 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 05:30:44,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17935 states to 17935 states and 33541 transitions. [2022-01-11 05:30:44,619 INFO L78 Accepts]: Start accepts. Automaton has 17935 states and 33541 transitions. Word has length 46 [2022-01-11 05:30:44,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:44,620 INFO L470 AbstractCegarLoop]: Abstraction has 17935 states and 33541 transitions. [2022-01-11 05:30:44,621 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 05:30:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 17935 states and 33541 transitions. [2022-01-11 05:30:44,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 05:30:44,625 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:44,625 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 05:30:44,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:30:44,626 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 05:30:44,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:44,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1495830250, now seen corresponding path program 1 times [2022-01-11 05:30:44,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:44,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135862880] [2022-01-11 05:30:44,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:44,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:44,923 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 05:30:44,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:44,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135862880] [2022-01-11 05:30:44,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135862880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:44,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:44,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:44,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217273245] [2022-01-11 05:30:44,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:44,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:44,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:44,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:44,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:44,926 INFO L87 Difference]: Start difference. First operand 17935 states and 33541 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 05:30:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:45,851 INFO L93 Difference]: Finished difference Result 42969 states and 80355 transitions. [2022-01-11 05:30:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:45,852 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 05:30:45,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:45,930 INFO L225 Difference]: With dead ends: 42969 [2022-01-11 05:30:45,931 INFO L226 Difference]: Without dead ends: 25083 [2022-01-11 05:30:45,967 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 05:30:45,968 INFO L933 BasicCegarLoop]: 46733 mSDtfsCounter, 33489 mSDsluCounter, 13390 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33489 SdHoareTripleChecker+Valid, 60123 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:45,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33489 Valid, 60123 Invalid, 181 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:30:46,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25083 states. [2022-01-11 05:30:46,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25083 to 17935. [2022-01-11 05:30:46,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17935 states, 17925 states have (on average 1.8706276150627614) internal successors, (33531), 17934 states have internal predecessors, (33531), 0 states have call successors, (0), 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 05:30:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17935 states to 17935 states and 33531 transitions. [2022-01-11 05:30:46,642 INFO L78 Accepts]: Start accepts. Automaton has 17935 states and 33531 transitions. Word has length 48 [2022-01-11 05:30:46,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:46,643 INFO L470 AbstractCegarLoop]: Abstraction has 17935 states and 33531 transitions. [2022-01-11 05:30:46,643 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 05:30:46,646 INFO L276 IsEmpty]: Start isEmpty. Operand 17935 states and 33531 transitions. [2022-01-11 05:30:46,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 05:30:46,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:46,656 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 05:30:46,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:30:46,656 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 05:30:46,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:46,657 INFO L85 PathProgramCache]: Analyzing trace with hash -61227071, now seen corresponding path program 1 times [2022-01-11 05:30:46,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:46,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179437577] [2022-01-11 05:30:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:46,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:46,839 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 05:30:46,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:46,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179437577] [2022-01-11 05:30:46,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179437577] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:46,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:46,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:46,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625407412] [2022-01-11 05:30:46,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:46,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:46,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:46,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:46,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:46,843 INFO L87 Difference]: Start difference. First operand 17935 states and 33531 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 05:30:47,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:47,466 INFO L93 Difference]: Finished difference Result 43035 states and 80466 transitions. [2022-01-11 05:30:47,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:47,467 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 05:30:47,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:47,542 INFO L225 Difference]: With dead ends: 43035 [2022-01-11 05:30:47,543 INFO L226 Difference]: Without dead ends: 25164 [2022-01-11 05:30:47,576 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 05:30:47,579 INFO L933 BasicCegarLoop]: 47033 mSDtfsCounter, 33497 mSDsluCounter, 13518 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33497 SdHoareTripleChecker+Valid, 60551 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 05:30:47,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33497 Valid, 60551 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:30:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25164 states. [2022-01-11 05:30:48,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25164 to 17935. [2022-01-11 05:30:48,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17935 states, 17925 states have (on average 1.8705718270571827) internal successors, (33530), 17934 states have internal predecessors, (33530), 0 states have call successors, (0), 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 05:30:48,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17935 states to 17935 states and 33530 transitions. [2022-01-11 05:30:48,223 INFO L78 Accepts]: Start accepts. Automaton has 17935 states and 33530 transitions. Word has length 50 [2022-01-11 05:30:48,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:48,223 INFO L470 AbstractCegarLoop]: Abstraction has 17935 states and 33530 transitions. [2022-01-11 05:30:48,223 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 05:30:48,223 INFO L276 IsEmpty]: Start isEmpty. Operand 17935 states and 33530 transitions. [2022-01-11 05:30:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:30:48,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:48,227 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 05:30:48,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:30:48,227 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 05:30:48,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash -861021803, now seen corresponding path program 1 times [2022-01-11 05:30:48,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:48,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105819220] [2022-01-11 05:30:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:48,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:48,316 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 05:30:48,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:48,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105819220] [2022-01-11 05:30:48,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105819220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:48,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:48,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:48,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902632591] [2022-01-11 05:30:48,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:48,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:48,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:48,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:48,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:48,319 INFO L87 Difference]: Start difference. First operand 17935 states and 33530 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 05:30:49,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:49,281 INFO L93 Difference]: Finished difference Result 42934 states and 80273 transitions. [2022-01-11 05:30:49,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:49,282 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 05:30:49,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:49,354 INFO L225 Difference]: With dead ends: 42934 [2022-01-11 05:30:49,354 INFO L226 Difference]: Without dead ends: 25099 [2022-01-11 05:30:49,378 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 05:30:49,386 INFO L933 BasicCegarLoop]: 46862 mSDtfsCounter, 33367 mSDsluCounter, 13424 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33367 SdHoareTripleChecker+Valid, 60286 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:49,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33367 Valid, 60286 Invalid, 171 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:30:49,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25099 states. [2022-01-11 05:30:49,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25099 to 17935. [2022-01-11 05:30:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17935 states, 17925 states have (on average 1.8702928870292888) internal successors, (33525), 17934 states have internal predecessors, (33525), 0 states have call successors, (0), 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 05:30:50,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17935 states to 17935 states and 33525 transitions. [2022-01-11 05:30:50,010 INFO L78 Accepts]: Start accepts. Automaton has 17935 states and 33525 transitions. Word has length 51 [2022-01-11 05:30:50,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:50,012 INFO L470 AbstractCegarLoop]: Abstraction has 17935 states and 33525 transitions. [2022-01-11 05:30:50,012 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 05:30:50,012 INFO L276 IsEmpty]: Start isEmpty. Operand 17935 states and 33525 transitions. [2022-01-11 05:30:50,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:30:50,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:50,015 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 05:30:50,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:30:50,015 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 05:30:50,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:50,016 INFO L85 PathProgramCache]: Analyzing trace with hash -955180392, now seen corresponding path program 1 times [2022-01-11 05:30:50,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:50,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656926253] [2022-01-11 05:30:50,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:50,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:50,116 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 05:30:50,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:50,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656926253] [2022-01-11 05:30:50,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656926253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:50,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:50,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:30:50,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032061904] [2022-01-11 05:30:50,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:50,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:30:50,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:50,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:30:50,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:30:50,119 INFO L87 Difference]: Start difference. First operand 17935 states and 33525 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 05:30:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:51,279 INFO L93 Difference]: Finished difference Result 45904 states and 85886 transitions. [2022-01-11 05:30:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:30:51,279 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 05:30:51,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:51,381 INFO L225 Difference]: With dead ends: 45904 [2022-01-11 05:30:51,382 INFO L226 Difference]: Without dead ends: 31546 [2022-01-11 05:30:51,406 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 05:30:51,407 INFO L933 BasicCegarLoop]: 59009 mSDtfsCounter, 26405 mSDsluCounter, 32550 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26405 SdHoareTripleChecker+Valid, 91559 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 05:30:51,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26405 Valid, 91559 Invalid, 102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:51,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31546 states. [2022-01-11 05:30:52,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31546 to 17805. [2022-01-11 05:30:52,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17805 states, 17795 states have (on average 1.8693453217195841) internal successors, (33265), 17804 states have internal predecessors, (33265), 0 states have call successors, (0), 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 05:30:52,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17805 states to 17805 states and 33265 transitions. [2022-01-11 05:30:52,253 INFO L78 Accepts]: Start accepts. Automaton has 17805 states and 33265 transitions. Word has length 52 [2022-01-11 05:30:52,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:52,255 INFO L470 AbstractCegarLoop]: Abstraction has 17805 states and 33265 transitions. [2022-01-11 05:30:52,255 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 05:30:52,256 INFO L276 IsEmpty]: Start isEmpty. Operand 17805 states and 33265 transitions. [2022-01-11 05:30:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 05:30:52,259 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:52,259 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 05:30:52,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:30:52,259 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 05:30:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:52,260 INFO L85 PathProgramCache]: Analyzing trace with hash -593033535, now seen corresponding path program 1 times [2022-01-11 05:30:52,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:52,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290502661] [2022-01-11 05:30:52,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:52,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:52,372 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 05:30:52,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:52,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290502661] [2022-01-11 05:30:52,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290502661] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:52,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:52,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:52,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864628487] [2022-01-11 05:30:52,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:52,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:52,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:52,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:52,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:52,375 INFO L87 Difference]: Start difference. First operand 17805 states and 33265 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 05:30:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:53,995 INFO L93 Difference]: Finished difference Result 59452 states and 111288 transitions. [2022-01-11 05:30:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:30:53,996 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 05:30:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:54,314 INFO L225 Difference]: With dead ends: 59452 [2022-01-11 05:30:54,314 INFO L226 Difference]: Without dead ends: 45237 [2022-01-11 05:30:54,340 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 05:30:54,341 INFO L933 BasicCegarLoop]: 65349 mSDtfsCounter, 72410 mSDsluCounter, 58246 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72410 SdHoareTripleChecker+Valid, 123595 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:54,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72410 Valid, 123595 Invalid, 122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:54,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45237 states. [2022-01-11 05:30:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45237 to 17805. [2022-01-11 05:30:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17805 states, 17795 states have (on average 1.868783366114077) internal successors, (33255), 17804 states have internal predecessors, (33255), 0 states have call successors, (0), 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 05:30:55,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17805 states to 17805 states and 33255 transitions. [2022-01-11 05:30:55,208 INFO L78 Accepts]: Start accepts. Automaton has 17805 states and 33255 transitions. Word has length 54 [2022-01-11 05:30:55,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:55,209 INFO L470 AbstractCegarLoop]: Abstraction has 17805 states and 33255 transitions. [2022-01-11 05:30:55,209 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 05:30:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 17805 states and 33255 transitions. [2022-01-11 05:30:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:30:55,212 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:55,212 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 05:30:55,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:30:55,212 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 05:30:55,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:55,213 INFO L85 PathProgramCache]: Analyzing trace with hash 874354665, now seen corresponding path program 1 times [2022-01-11 05:30:55,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:55,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886246944] [2022-01-11 05:30:55,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:55,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:55,305 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 05:30:55,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:55,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886246944] [2022-01-11 05:30:55,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886246944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:55,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:55,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:55,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042786640] [2022-01-11 05:30:55,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:55,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:55,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:55,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:55,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:55,317 INFO L87 Difference]: Start difference. First operand 17805 states and 33255 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 05:30:56,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:56,730 INFO L93 Difference]: Finished difference Result 60407 states and 112837 transitions. [2022-01-11 05:30:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:30:56,730 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 05:30:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:56,853 INFO L225 Difference]: With dead ends: 60407 [2022-01-11 05:30:56,854 INFO L226 Difference]: Without dead ends: 42633 [2022-01-11 05:30:56,888 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 05:30:56,890 INFO L933 BasicCegarLoop]: 66276 mSDtfsCounter, 59762 mSDsluCounter, 99406 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59762 SdHoareTripleChecker+Valid, 165682 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 05:30:56,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59762 Valid, 165682 Invalid, 104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:30:56,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42633 states. [2022-01-11 05:30:57,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42633 to 17813. [2022-01-11 05:30:57,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17813 states, 17803 states have (on average 1.8683929674773914) internal successors, (33263), 17812 states have internal predecessors, (33263), 0 states have call successors, (0), 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 05:30:57,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17813 states to 17813 states and 33263 transitions. [2022-01-11 05:30:57,765 INFO L78 Accepts]: Start accepts. Automaton has 17813 states and 33263 transitions. Word has length 55 [2022-01-11 05:30:57,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:30:57,765 INFO L470 AbstractCegarLoop]: Abstraction has 17813 states and 33263 transitions. [2022-01-11 05:30:57,765 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 05:30:57,765 INFO L276 IsEmpty]: Start isEmpty. Operand 17813 states and 33263 transitions. [2022-01-11 05:30:57,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:30:57,768 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:30:57,768 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 05:30:57,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:30:57,770 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 05:30:57,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:30:57,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1771319352, now seen corresponding path program 1 times [2022-01-11 05:30:57,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:30:57,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806440333] [2022-01-11 05:30:57,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:30:57,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:30:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:30:57,850 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 05:30:57,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:30:57,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806440333] [2022-01-11 05:30:57,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806440333] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:30:57,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:30:57,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:30:57,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760636371] [2022-01-11 05:30:57,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:30:57,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:30:57,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:30:57,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:30:57,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:30:57,853 INFO L87 Difference]: Start difference. First operand 17813 states and 33263 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 05:30:58,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:30:58,877 INFO L93 Difference]: Finished difference Result 42675 states and 79699 transitions. [2022-01-11 05:30:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:30:58,878 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 05:30:58,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:30:58,940 INFO L225 Difference]: With dead ends: 42675 [2022-01-11 05:30:58,940 INFO L226 Difference]: Without dead ends: 24875 [2022-01-11 05:30:58,960 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 05:30:58,961 INFO L933 BasicCegarLoop]: 46443 mSDtfsCounter, 26665 mSDsluCounter, 33101 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26665 SdHoareTripleChecker+Valid, 79544 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:30:58,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26665 Valid, 79544 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:30:58,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24875 states.