/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_spec3_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:35:26,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:35:26,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:35:26,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:35:26,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:35:26,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:35:26,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:35:26,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:35:26,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:35:26,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:35:26,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:35:26,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:35:26,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:35:26,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:35:26,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:35:26,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:35:26,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:35:26,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:35:26,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:35:26,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:35:26,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:35:26,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:35:26,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:35:26,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:35:26,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:35:26,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:35:26,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:35:26,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:35:26,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:35:26,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:35:26,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:35:26,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:35:26,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:35:26,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:35:26,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:35:26,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:35:26,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:35:26,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:35:26,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:35:26,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:35:26,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:35:26,632 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 05:35:26,665 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:35:26,666 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:35:26,666 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:35:26,666 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:35:26,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:35:26,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:35:26,667 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:35:26,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:35:26,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:35:26,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:35:26,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:35:26,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:35:26,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:35:26,668 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:35:26,668 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:35:26,668 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:35:26,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:35:26,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:35:26,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:35:26,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:35:26,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:35:26,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:35:26,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:35:26,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:35:26,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:35:26,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:35:26,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:35:26,669 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:35:26,669 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:35:26,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:35:26,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:35:26,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:35:26,670 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:35:26,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:35:26,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:35:26,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:35:26,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:35:26,871 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:35:26,873 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:35:26,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product26.cil.c [2022-01-11 05:35:26,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732affa37/2eff0387c8734062947e18318c65f5af/FLAGee4019f90 [2022-01-11 05:35:27,331 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:35:27,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product26.cil.c [2022-01-11 05:35:27,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732affa37/2eff0387c8734062947e18318c65f5af/FLAGee4019f90 [2022-01-11 05:35:27,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/732affa37/2eff0387c8734062947e18318c65f5af [2022-01-11 05:35:27,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:35:27,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:35:27,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:35:27,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:35:27,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:35:27,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:35:27" (1/1) ... [2022-01-11 05:35:27,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eaf00f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:27, skipping insertion in model container [2022-01-11 05:35:27,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:35:27" (1/1) ... [2022-01-11 05:35:27,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:35:27,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:35:28,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product26.cil.c[67702,67715] [2022-01-11 05:35:28,103 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:28,111 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:35:28,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:35:28,180 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product26.cil.c[67702,67715] [2022-01-11 05:35:28,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:28,196 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:35:28,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product26.cil.c[67702,67715] [2022-01-11 05:35:28,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:28,281 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:35:28,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28 WrapperNode [2022-01-11 05:35:28,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:35:28,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:35:28,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:35:28,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:35:28,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:28,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:28,694 INFO L137 Inliner]: procedures = 93, calls = 346, calls flagged for inlining = 198, calls inlined = 1358, statements flattened = 43086 [2022-01-11 05:35:28,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:35:28,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:35:28,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:35:28,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:35:28,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:28,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:28,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:28,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:29,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:29,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:29,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:29,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:35:29,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:35:29,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:35:29,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:35:29,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (1/1) ... [2022-01-11 05:35:29,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:35:29,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:35:29,475 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 05:35:29,481 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 05:35:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:35:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:35:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:35:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:35:29,672 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:35:29,673 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:35:41,903 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:35:41,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:35:41,957 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:35:41,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:41 BoogieIcfgContainer [2022-01-11 05:35:41,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:35:41,970 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:35:41,970 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:35:41,972 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:35:41,974 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:43,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:43 BasicIcfg [2022-01-11 05:35:43,822 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:35:43,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:35:43,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:35:43,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:35:43,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:35:27" (1/4) ... [2022-01-11 05:35:43,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bca7a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:43, skipping insertion in model container [2022-01-11 05:35:43,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:28" (2/4) ... [2022-01-11 05:35:43,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bca7a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:35:43, skipping insertion in model container [2022-01-11 05:35:43,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:41" (3/4) ... [2022-01-11 05:35:43,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bca7a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:35:43, skipping insertion in model container [2022-01-11 05:35:43,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:35:43" (4/4) ... [2022-01-11 05:35:43,829 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product26.cil.cTransformedIcfg [2022-01-11 05:35:43,833 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:35:43,833 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:35:43,898 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:35:43,902 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 05:35:43,902 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:35:44,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 12328 states, 12317 states have (on average 1.8726150848420882) internal successors, (23065), 12327 states have internal predecessors, (23065), 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 05:35:44,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 05:35:44,045 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:44,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:44,046 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 05:35:44,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:44,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1863075301, now seen corresponding path program 1 times [2022-01-11 05:35:44,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:44,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581727501] [2022-01-11 05:35:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:44,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:44,327 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 05:35:44,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:44,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581727501] [2022-01-11 05:35:44,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581727501] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:44,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:44,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:44,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60837420] [2022-01-11 05:35:44,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:44,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:44,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:44,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:44,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:44,422 INFO L87 Difference]: Start difference. First operand has 12328 states, 12317 states have (on average 1.8726150848420882) internal successors, (23065), 12327 states have internal predecessors, (23065), 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 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:45,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:45,256 INFO L93 Difference]: Finished difference Result 33970 states and 63604 transitions. [2022-01-11 05:35:45,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:45,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-01-11 05:35:45,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:45,372 INFO L225 Difference]: With dead ends: 33970 [2022-01-11 05:35:45,372 INFO L226 Difference]: Without dead ends: 24107 [2022-01-11 05:35:45,403 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 05:35:45,415 INFO L933 BasicCegarLoop]: 27617 mSDtfsCounter, 22126 mSDsluCounter, 22947 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22126 SdHoareTripleChecker+Valid, 50564 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:45,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22126 Valid, 50564 Invalid, 98 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:35:45,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24107 states. [2022-01-11 05:35:45,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24107 to 23996. [2022-01-11 05:35:46,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23996 states, 23986 states have (on average 1.873926457099975) internal successors, (44948), 23995 states have internal predecessors, (44948), 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 05:35:46,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23996 states to 23996 states and 44948 transitions. [2022-01-11 05:35:46,211 INFO L78 Accepts]: Start accepts. Automaton has 23996 states and 44948 transitions. Word has length 34 [2022-01-11 05:35:46,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:46,213 INFO L470 AbstractCegarLoop]: Abstraction has 23996 states and 44948 transitions. [2022-01-11 05:35:46,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:46,213 INFO L276 IsEmpty]: Start isEmpty. Operand 23996 states and 44948 transitions. [2022-01-11 05:35:46,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 05:35:46,219 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:46,219 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:46,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:35:46,220 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 05:35:46,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:46,223 INFO L85 PathProgramCache]: Analyzing trace with hash -568364642, now seen corresponding path program 1 times [2022-01-11 05:35:46,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:46,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431705927] [2022-01-11 05:35:46,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:46,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:46,317 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 05:35:46,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:46,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431705927] [2022-01-11 05:35:46,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431705927] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:46,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:46,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:35:46,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268451950] [2022-01-11 05:35:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:46,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:35:46,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:46,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:35:46,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:35:46,320 INFO L87 Difference]: Start difference. First operand 23996 states and 44948 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:47,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:47,636 INFO L93 Difference]: Finished difference Result 95803 states and 179458 transitions. [2022-01-11 05:35:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:35:47,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-01-11 05:35:47,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:47,858 INFO L225 Difference]: With dead ends: 95803 [2022-01-11 05:35:47,859 INFO L226 Difference]: Without dead ends: 71834 [2022-01-11 05:35:47,902 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 05:35:47,903 INFO L933 BasicCegarLoop]: 45887 mSDtfsCounter, 68683 mSDsluCounter, 68860 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68683 SdHoareTripleChecker+Valid, 114747 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:47,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68683 Valid, 114747 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:47,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71834 states. [2022-01-11 05:35:48,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71834 to 24006. [2022-01-11 05:35:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24006 states, 23996 states have (on average 1.8735622603767295) internal successors, (44958), 24005 states have internal predecessors, (44958), 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 05:35:48,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24006 states to 24006 states and 44958 transitions. [2022-01-11 05:35:48,715 INFO L78 Accepts]: Start accepts. Automaton has 24006 states and 44958 transitions. Word has length 34 [2022-01-11 05:35:48,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:48,716 INFO L470 AbstractCegarLoop]: Abstraction has 24006 states and 44958 transitions. [2022-01-11 05:35:48,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 24006 states and 44958 transitions. [2022-01-11 05:35:48,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-11 05:35:48,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:48,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:48,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:35:48,725 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 05:35:48,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:48,726 INFO L85 PathProgramCache]: Analyzing trace with hash 933562377, now seen corresponding path program 1 times [2022-01-11 05:35:48,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:48,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300814444] [2022-01-11 05:35:48,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:48,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:48,807 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 05:35:48,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:48,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300814444] [2022-01-11 05:35:48,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300814444] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:48,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:48,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:48,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785097657] [2022-01-11 05:35:48,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:48,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:48,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:48,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:48,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:48,811 INFO L87 Difference]: Start difference. First operand 24006 states and 44958 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:49,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:49,327 INFO L93 Difference]: Finished difference Result 47929 states and 89766 transitions. [2022-01-11 05:35:49,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:49,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-11 05:35:49,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:49,383 INFO L225 Difference]: With dead ends: 47929 [2022-01-11 05:35:49,383 INFO L226 Difference]: Without dead ends: 23938 [2022-01-11 05:35:49,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:49,415 INFO L933 BasicCegarLoop]: 22905 mSDtfsCounter, 22897 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22897 SdHoareTripleChecker+Valid, 22913 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:49,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22897 Valid, 22913 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:49,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23938 states. [2022-01-11 05:35:49,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23938 to 23938. [2022-01-11 05:35:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23938 states, 23928 states have (on average 1.8732029421598129) internal successors, (44822), 23937 states have internal predecessors, (44822), 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 05:35:49,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23938 states to 23938 states and 44822 transitions. [2022-01-11 05:35:49,984 INFO L78 Accepts]: Start accepts. Automaton has 23938 states and 44822 transitions. Word has length 35 [2022-01-11 05:35:49,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:49,984 INFO L470 AbstractCegarLoop]: Abstraction has 23938 states and 44822 transitions. [2022-01-11 05:35:49,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:49,985 INFO L276 IsEmpty]: Start isEmpty. Operand 23938 states and 44822 transitions. [2022-01-11 05:35:49,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 05:35:49,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:49,987 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:49,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:35:49,987 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 05:35:49,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:49,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1289231119, now seen corresponding path program 1 times [2022-01-11 05:35:49,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:49,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175215012] [2022-01-11 05:35:49,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:49,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:50,122 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 05:35:50,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:50,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175215012] [2022-01-11 05:35:50,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175215012] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:50,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:50,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:50,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919956043] [2022-01-11 05:35:50,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:50,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:50,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:50,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:50,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:50,124 INFO L87 Difference]: Start difference. First operand 23938 states and 44822 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:51,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:51,030 INFO L93 Difference]: Finished difference Result 47854 states and 89615 transitions. [2022-01-11 05:35:51,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:35:51,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-11 05:35:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:51,079 INFO L225 Difference]: With dead ends: 47854 [2022-01-11 05:35:51,079 INFO L226 Difference]: Without dead ends: 23938 [2022-01-11 05:35:51,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:35:51,108 INFO L933 BasicCegarLoop]: 22891 mSDtfsCounter, 91557 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91557 SdHoareTripleChecker+Valid, 22919 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:51,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91557 Valid, 22919 Invalid, 34 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:51,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23938 states. [2022-01-11 05:35:51,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23938 to 23938. [2022-01-11 05:35:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23938 states, 23928 states have (on average 1.8731193580742227) internal successors, (44820), 23937 states have internal predecessors, (44820), 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 05:35:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23938 states to 23938 states and 44820 transitions. [2022-01-11 05:35:51,672 INFO L78 Accepts]: Start accepts. Automaton has 23938 states and 44820 transitions. Word has length 37 [2022-01-11 05:35:51,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:51,673 INFO L470 AbstractCegarLoop]: Abstraction has 23938 states and 44820 transitions. [2022-01-11 05:35:51,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 23938 states and 44820 transitions. [2022-01-11 05:35:51,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 05:35:51,673 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:51,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:51,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:35:51,674 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 05:35:51,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:51,674 INFO L85 PathProgramCache]: Analyzing trace with hash 484377859, now seen corresponding path program 1 times [2022-01-11 05:35:51,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:51,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738464383] [2022-01-11 05:35:51,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:51,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:51,737 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 05:35:51,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:51,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738464383] [2022-01-11 05:35:51,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738464383] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:51,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:51,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:51,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956403734] [2022-01-11 05:35:51,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:51,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:51,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:51,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:51,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:51,739 INFO L87 Difference]: Start difference. First operand 23938 states and 44820 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:52,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:52,363 INFO L93 Difference]: Finished difference Result 47848 states and 89601 transitions. [2022-01-11 05:35:52,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:35:52,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-11 05:35:52,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:52,412 INFO L225 Difference]: With dead ends: 47848 [2022-01-11 05:35:52,412 INFO L226 Difference]: Without dead ends: 23938 [2022-01-11 05:35:52,435 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 05:35:52,435 INFO L933 BasicCegarLoop]: 22873 mSDtfsCounter, 68646 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68646 SdHoareTripleChecker+Valid, 22906 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:52,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68646 Valid, 22906 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:52,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23938 states. [2022-01-11 05:35:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23938 to 23938. [2022-01-11 05:35:53,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23938 states, 23928 states have (on average 1.8730357739886325) internal successors, (44818), 23937 states have internal predecessors, (44818), 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 05:35:53,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23938 states to 23938 states and 44818 transitions. [2022-01-11 05:35:53,048 INFO L78 Accepts]: Start accepts. Automaton has 23938 states and 44818 transitions. Word has length 38 [2022-01-11 05:35:53,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:53,048 INFO L470 AbstractCegarLoop]: Abstraction has 23938 states and 44818 transitions. [2022-01-11 05:35:53,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:53,049 INFO L276 IsEmpty]: Start isEmpty. Operand 23938 states and 44818 transitions. [2022-01-11 05:35:53,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:35:53,049 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:53,049 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:53,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:35:53,050 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 05:35:53,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:53,050 INFO L85 PathProgramCache]: Analyzing trace with hash -806540196, now seen corresponding path program 1 times [2022-01-11 05:35:53,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:53,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396541642] [2022-01-11 05:35:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:53,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:53,105 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 05:35:53,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:53,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396541642] [2022-01-11 05:35:53,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396541642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:53,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:53,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:35:53,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158358538] [2022-01-11 05:35:53,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:53,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:35:53,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:53,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:35:53,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:35:53,107 INFO L87 Difference]: Start difference. First operand 23938 states and 44818 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:53,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:53,929 INFO L93 Difference]: Finished difference Result 47848 states and 89598 transitions. [2022-01-11 05:35:53,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:35:53,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-11 05:35:53,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:53,963 INFO L225 Difference]: With dead ends: 47848 [2022-01-11 05:35:53,964 INFO L226 Difference]: Without dead ends: 23938 [2022-01-11 05:35:53,977 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 05:35:53,978 INFO L933 BasicCegarLoop]: 22873 mSDtfsCounter, 68643 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68643 SdHoareTripleChecker+Valid, 22906 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:53,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68643 Valid, 22906 Invalid, 46 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:53,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23938 states. [2022-01-11 05:35:54,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23938 to 23938. [2022-01-11 05:35:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23938 states, 23928 states have (on average 1.8729521899030424) internal successors, (44816), 23937 states have internal predecessors, (44816), 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 05:35:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23938 states to 23938 states and 44816 transitions. [2022-01-11 05:35:54,559 INFO L78 Accepts]: Start accepts. Automaton has 23938 states and 44816 transitions. Word has length 39 [2022-01-11 05:35:54,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:54,560 INFO L470 AbstractCegarLoop]: Abstraction has 23938 states and 44816 transitions. [2022-01-11 05:35:54,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:54,560 INFO L276 IsEmpty]: Start isEmpty. Operand 23938 states and 44816 transitions. [2022-01-11 05:35:54,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 05:35:54,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:54,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:54,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:35:54,561 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 05:35:54,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:54,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1104925430, now seen corresponding path program 1 times [2022-01-11 05:35:54,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:54,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760629950] [2022-01-11 05:35:54,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:54,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:54,663 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 05:35:54,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:54,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760629950] [2022-01-11 05:35:54,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760629950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:54,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:54,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:35:54,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931500090] [2022-01-11 05:35:54,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:54,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:35:54,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:54,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:35:54,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:35:54,665 INFO L87 Difference]: Start difference. First operand 23938 states and 44816 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:55,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:55,359 INFO L93 Difference]: Finished difference Result 47848 states and 89595 transitions. [2022-01-11 05:35:55,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:35:55,359 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-11 05:35:55,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:55,398 INFO L225 Difference]: With dead ends: 47848 [2022-01-11 05:35:55,399 INFO L226 Difference]: Without dead ends: 23938 [2022-01-11 05:35:55,422 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 05:35:55,423 INFO L933 BasicCegarLoop]: 22873 mSDtfsCounter, 68628 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68628 SdHoareTripleChecker+Valid, 22926 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:55,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68628 Valid, 22926 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:55,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23938 states. [2022-01-11 05:35:55,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23938 to 23938. [2022-01-11 05:35:55,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23938 states, 23928 states have (on average 1.8728686058174524) internal successors, (44814), 23937 states have internal predecessors, (44814), 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 05:35:56,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23938 states to 23938 states and 44814 transitions. [2022-01-11 05:35:56,037 INFO L78 Accepts]: Start accepts. Automaton has 23938 states and 44814 transitions. Word has length 40 [2022-01-11 05:35:56,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:56,037 INFO L470 AbstractCegarLoop]: Abstraction has 23938 states and 44814 transitions. [2022-01-11 05:35:56,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:56,037 INFO L276 IsEmpty]: Start isEmpty. Operand 23938 states and 44814 transitions. [2022-01-11 05:35:56,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-11 05:35:56,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:56,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:56,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:35:56,038 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 05:35:56,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:56,039 INFO L85 PathProgramCache]: Analyzing trace with hash -788929937, now seen corresponding path program 1 times [2022-01-11 05:35:56,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:56,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375170768] [2022-01-11 05:35:56,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:56,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:56,097 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 05:35:56,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:56,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375170768] [2022-01-11 05:35:56,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375170768] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:56,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:56,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:56,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673373594] [2022-01-11 05:35:56,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:56,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:56,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:56,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:56,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:56,099 INFO L87 Difference]: Start difference. First operand 23938 states and 44814 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:56,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:56,721 INFO L93 Difference]: Finished difference Result 47848 states and 89592 transitions. [2022-01-11 05:35:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:35:56,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-01-11 05:35:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:56,763 INFO L225 Difference]: With dead ends: 47848 [2022-01-11 05:35:56,763 INFO L226 Difference]: Without dead ends: 23938 [2022-01-11 05:35:56,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:35:56,790 INFO L933 BasicCegarLoop]: 22873 mSDtfsCounter, 68621 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68621 SdHoareTripleChecker+Valid, 22926 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:56,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68621 Valid, 22926 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:56,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23938 states. [2022-01-11 05:35:57,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23938 to 23938. [2022-01-11 05:35:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23938 states, 23928 states have (on average 1.8727850217318622) internal successors, (44812), 23937 states have internal predecessors, (44812), 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 05:35:57,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23938 states to 23938 states and 44812 transitions. [2022-01-11 05:35:57,350 INFO L78 Accepts]: Start accepts. Automaton has 23938 states and 44812 transitions. Word has length 41 [2022-01-11 05:35:57,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:57,350 INFO L470 AbstractCegarLoop]: Abstraction has 23938 states and 44812 transitions. [2022-01-11 05:35:57,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:57,351 INFO L276 IsEmpty]: Start isEmpty. Operand 23938 states and 44812 transitions. [2022-01-11 05:35:57,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 05:35:57,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:57,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:57,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:35:57,352 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 05:35:57,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:57,352 INFO L85 PathProgramCache]: Analyzing trace with hash -388651799, now seen corresponding path program 1 times [2022-01-11 05:35:57,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:57,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478430811] [2022-01-11 05:35:57,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:57,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:57,404 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 05:35:57,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:57,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478430811] [2022-01-11 05:35:57,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478430811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:57,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:57,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:57,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121774197] [2022-01-11 05:35:57,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:57,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:57,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:57,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:57,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:57,406 INFO L87 Difference]: Start difference. First operand 23938 states and 44812 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:02,997 INFO L93 Difference]: Finished difference Result 157023 states and 293908 transitions. [2022-01-11 05:36:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:36:02,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-11 05:36:02,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:03,235 INFO L225 Difference]: With dead ends: 157023 [2022-01-11 05:36:03,236 INFO L226 Difference]: Without dead ends: 135231 [2022-01-11 05:36:03,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:36:03,277 INFO L933 BasicCegarLoop]: 48685 mSDtfsCounter, 157032 mSDsluCounter, 130120 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157032 SdHoareTripleChecker+Valid, 178805 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:03,277 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157032 Valid, 178805 Invalid, 2101 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [515 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-11 05:36:03,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135231 states. [2022-01-11 05:36:05,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135231 to 45384. [2022-01-11 05:36:05,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45384 states, 45374 states have (on average 1.8717988275223696) internal successors, (84931), 45383 states have internal predecessors, (84931), 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 05:36:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45384 states to 45384 states and 84931 transitions. [2022-01-11 05:36:05,175 INFO L78 Accepts]: Start accepts. Automaton has 45384 states and 84931 transitions. Word has length 42 [2022-01-11 05:36:05,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:05,175 INFO L470 AbstractCegarLoop]: Abstraction has 45384 states and 84931 transitions. [2022-01-11 05:36:05,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:05,175 INFO L276 IsEmpty]: Start isEmpty. Operand 45384 states and 84931 transitions. [2022-01-11 05:36:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-11 05:36:05,179 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:05,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:05,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:36:05,179 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:05,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:05,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1097063156, now seen corresponding path program 1 times [2022-01-11 05:36:05,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:05,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073895015] [2022-01-11 05:36:05,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:05,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:05,254 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 05:36:05,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:05,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073895015] [2022-01-11 05:36:05,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073895015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:05,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:05,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:36:05,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178597983] [2022-01-11 05:36:05,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:05,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:36:05,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:05,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:36:05,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:05,255 INFO L87 Difference]: Start difference. First operand 45384 states and 84931 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:07,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:07,934 INFO L93 Difference]: Finished difference Result 104912 states and 195848 transitions. [2022-01-11 05:36:07,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:36:07,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-01-11 05:36:07,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:08,037 INFO L225 Difference]: With dead ends: 104912 [2022-01-11 05:36:08,038 INFO L226 Difference]: Without dead ends: 59604 [2022-01-11 05:36:08,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:36:08,070 INFO L933 BasicCegarLoop]: 22720 mSDtfsCounter, 67811 mSDsluCounter, 55423 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67811 SdHoareTripleChecker+Valid, 78143 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:08,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67811 Valid, 78143 Invalid, 700 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [225 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:36:08,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59604 states. [2022-01-11 05:36:09,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59604 to 58627. [2022-01-11 05:36:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58627 states, 58617 states have (on average 1.8681952334646945) internal successors, (109508), 58626 states have internal predecessors, (109508), 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 05:36:10,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58627 states to 58627 states and 109508 transitions. [2022-01-11 05:36:10,168 INFO L78 Accepts]: Start accepts. Automaton has 58627 states and 109508 transitions. Word has length 43 [2022-01-11 05:36:10,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:10,169 INFO L470 AbstractCegarLoop]: Abstraction has 58627 states and 109508 transitions. [2022-01-11 05:36:10,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:10,169 INFO L276 IsEmpty]: Start isEmpty. Operand 58627 states and 109508 transitions. [2022-01-11 05:36:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-11 05:36:10,169 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:10,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:10,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:36:10,170 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 05:36:10,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:10,170 INFO L85 PathProgramCache]: Analyzing trace with hash -2141270346, now seen corresponding path program 1 times [2022-01-11 05:36:10,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:10,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851995851] [2022-01-11 05:36:10,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:10,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:10,208 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 05:36:10,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:10,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851995851] [2022-01-11 05:36:10,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851995851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:10,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:10,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:10,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909148042] [2022-01-11 05:36:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:10,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:10,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:10,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:10,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:10,210 INFO L87 Difference]: Start difference. First operand 58627 states and 109508 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:13,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:13,772 INFO L93 Difference]: Finished difference Result 174803 states and 326500 transitions. [2022-01-11 05:36:13,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:36:13,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-01-11 05:36:13,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:14,012 INFO L225 Difference]: With dead ends: 174803 [2022-01-11 05:36:14,012 INFO L226 Difference]: Without dead ends: 116212 [2022-01-11 05:36:14,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:14,064 INFO L933 BasicCegarLoop]: 22714 mSDtfsCounter, 22158 mSDsluCounter, 22165 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22158 SdHoareTripleChecker+Valid, 44879 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:14,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22158 Valid, 44879 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:36:14,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116212 states. [2022-01-11 05:36:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116212 to 58503. [2022-01-11 05:36:16,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58503 states, 58493 states have (on average 1.8679158189868874) internal successors, (109260), 58502 states have internal predecessors, (109260), 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 05:36:16,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58503 states to 58503 states and 109260 transitions. [2022-01-11 05:36:16,541 INFO L78 Accepts]: Start accepts. Automaton has 58503 states and 109260 transitions. Word has length 43 [2022-01-11 05:36:16,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:16,541 INFO L470 AbstractCegarLoop]: Abstraction has 58503 states and 109260 transitions. [2022-01-11 05:36:16,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:16,541 INFO L276 IsEmpty]: Start isEmpty. Operand 58503 states and 109260 transitions. [2022-01-11 05:36:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-11 05:36:16,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:16,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:16,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:36:16,542 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 05:36:16,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:16,543 INFO L85 PathProgramCache]: Analyzing trace with hash -276220817, now seen corresponding path program 1 times [2022-01-11 05:36:16,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:16,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534654591] [2022-01-11 05:36:16,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:16,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:16,609 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 05:36:16,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:16,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534654591] [2022-01-11 05:36:16,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534654591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:16,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:16,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:16,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299337326] [2022-01-11 05:36:16,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:16,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:16,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:16,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:16,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:16,611 INFO L87 Difference]: Start difference. First operand 58503 states and 109260 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:20,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:20,600 INFO L93 Difference]: Finished difference Result 174802 states and 326587 transitions. [2022-01-11 05:36:20,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:36:20,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-01-11 05:36:20,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:20,831 INFO L225 Difference]: With dead ends: 174802 [2022-01-11 05:36:20,831 INFO L226 Difference]: Without dead ends: 116338 [2022-01-11 05:36:20,874 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 05:36:20,874 INFO L933 BasicCegarLoop]: 22884 mSDtfsCounter, 22317 mSDsluCounter, 22547 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22317 SdHoareTripleChecker+Valid, 45431 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:20,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22317 Valid, 45431 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:36:20,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116338 states. [2022-01-11 05:36:23,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116338 to 58693. [2022-01-11 05:36:23,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58693 states, 58683 states have (on average 1.866537157268715) internal successors, (109534), 58692 states have internal predecessors, (109534), 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 05:36:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58693 states to 58693 states and 109534 transitions. [2022-01-11 05:36:23,559 INFO L78 Accepts]: Start accepts. Automaton has 58693 states and 109534 transitions. Word has length 43 [2022-01-11 05:36:23,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:23,559 INFO L470 AbstractCegarLoop]: Abstraction has 58693 states and 109534 transitions. [2022-01-11 05:36:23,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:23,559 INFO L276 IsEmpty]: Start isEmpty. Operand 58693 states and 109534 transitions. [2022-01-11 05:36:23,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-11 05:36:23,560 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:23,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:23,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:36:23,560 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 05:36:23,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:23,560 INFO L85 PathProgramCache]: Analyzing trace with hash -44316983, now seen corresponding path program 1 times [2022-01-11 05:36:23,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:23,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329267111] [2022-01-11 05:36:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:23,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:23,608 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 05:36:23,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:23,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329267111] [2022-01-11 05:36:23,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329267111] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:23,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:23,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:23,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651533454] [2022-01-11 05:36:23,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:23,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:23,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:23,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:23,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:23,610 INFO L87 Difference]: Start difference. First operand 58693 states and 109534 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)