/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:46:27,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:46:27,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:46:27,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:46:27,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:46:27,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:46:27,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:46:27,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:46:27,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:46:27,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:46:27,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:46:27,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:46:27,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:46:27,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:46:27,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:46:27,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:46:27,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:46:27,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:46:27,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:46:27,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:46:27,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:46:27,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:46:27,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:46:27,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:46:27,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:46:27,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:46:27,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:46:27,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:46:27,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:46:27,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:46:27,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:46:27,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:46:27,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:46:27,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:46:27,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:46:27,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:46:27,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:46:27,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:46:27,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:46:27,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:46:27,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:46:27,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:46:27,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:46:27,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:46:27,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:46:27,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:46:27,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:46:27,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:46:27,220 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:46:27,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:46:27,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:46:27,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:46:27,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:46:27,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:46:27,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:46:27,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:46:27,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:46:27,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:46:27,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:46:27,222 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:46:27,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:46:27,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:46:27,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:46:27,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:46:27,223 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:46:27,223 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:46:27,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:46:27,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:46:27,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:46:27,457 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:46:27,457 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:46:27,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product30.cil.c [2022-01-10 23:46:27,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d65ab7e2/a343d4e51cc14174a1a5c0014b1eca21/FLAG9145727b5 [2022-01-10 23:46:27,963 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:46:27,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product30.cil.c [2022-01-10 23:46:27,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d65ab7e2/a343d4e51cc14174a1a5c0014b1eca21/FLAG9145727b5 [2022-01-10 23:46:28,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d65ab7e2/a343d4e51cc14174a1a5c0014b1eca21 [2022-01-10 23:46:28,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:46:28,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:46:28,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:46:28,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:46:28,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:46:28,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:46:28" (1/1) ... [2022-01-10 23:46:28,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653428c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:28, skipping insertion in model container [2022-01-10 23:46:28,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:46:28" (1/1) ... [2022-01-10 23:46:28,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:46:28,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:46:28,687 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product30.cil.c[10611,10624] [2022-01-10 23:46:28,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:46:28,892 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:46:28,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:46:28,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product30.cil.c[10611,10624] [2022-01-10 23:46:28,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:46:29,008 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:46:29,039 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product30.cil.c[10611,10624] [2022-01-10 23:46:29,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:46:29,135 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:46:29,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29 WrapperNode [2022-01-10 23:46:29,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:46:29,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:46:29,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:46:29,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:46:29,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,403 INFO L137 Inliner]: procedures = 97, calls = 347, calls flagged for inlining = 199, calls inlined = 782, statements flattened = 26425 [2022-01-10 23:46:29,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:46:29,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:46:29,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:46:29,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:46:29,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:46:29,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:46:29,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:46:29,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:46:29,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (1/1) ... [2022-01-10 23:46:29,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:46:29,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:46:29,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 23:46:29,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 23:46:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:46:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:46:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:46:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:46:30,130 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:46:30,131 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:46:37,941 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:46:37,985 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:46:37,985 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:46:37,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:46:37 BoogieIcfgContainer [2022-01-10 23:46:37,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:46:37,995 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:46:37,995 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:46:37,996 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:46:37,998 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:46:37" (1/1) ... [2022-01-10 23:46:39,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:46:39 BasicIcfg [2022-01-10 23:46:39,401 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:46:39,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:46:39,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:46:39,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:46:39,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:46:28" (1/4) ... [2022-01-10 23:46:39,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4247f184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:46:39, skipping insertion in model container [2022-01-10 23:46:39,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:46:29" (2/4) ... [2022-01-10 23:46:39,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4247f184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:46:39, skipping insertion in model container [2022-01-10 23:46:39,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:46:37" (3/4) ... [2022-01-10 23:46:39,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4247f184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:46:39, skipping insertion in model container [2022-01-10 23:46:39,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:46:39" (4/4) ... [2022-01-10 23:46:39,407 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product30.cil.cTransformedIcfg [2022-01-10 23:46:39,411 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:46:39,412 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:46:39,466 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:46:39,472 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:46:39,472 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:46:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 7102 states, 7096 states have (on average 1.8775366403607667) internal successors, (13323), 7101 states have internal predecessors, (13323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:39,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 23:46:39,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:39,581 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] [2022-01-10 23:46:39,581 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:39,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:39,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1050204457, now seen corresponding path program 1 times [2022-01-10 23:46:39,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:39,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012463682] [2022-01-10 23:46:39,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:39,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:39,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:39,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:39,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012463682] [2022-01-10 23:46:39,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012463682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:39,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:39,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:39,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904296490] [2022-01-10 23:46:39,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:39,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:39,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:39,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:39,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:39,975 INFO L87 Difference]: Start difference. First operand has 7102 states, 7096 states have (on average 1.8775366403607667) internal successors, (13323), 7101 states have internal predecessors, (13323), 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 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:40,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:40,452 INFO L93 Difference]: Finished difference Result 14189 states and 26623 transitions. [2022-01-10 23:46:40,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:40,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2022-01-10 23:46:40,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:40,488 INFO L225 Difference]: With dead ends: 14189 [2022-01-10 23:46:40,489 INFO L226 Difference]: Without dead ends: 7091 [2022-01-10 23:46:40,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:40,505 INFO L933 BasicCegarLoop]: 13302 mSDtfsCounter, 13297 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13297 SdHoareTripleChecker+Valid, 13313 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:40,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13297 Valid, 13313 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:40,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2022-01-10 23:46:40,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 7091. [2022-01-10 23:46:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7091 states, 7086 states have (on average 1.8767993226079593) internal successors, (13299), 7090 states have internal predecessors, (13299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:40,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7091 states to 7091 states and 13299 transitions. [2022-01-10 23:46:40,729 INFO L78 Accepts]: Start accepts. Automaton has 7091 states and 13299 transitions. Word has length 33 [2022-01-10 23:46:40,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:40,729 INFO L470 AbstractCegarLoop]: Abstraction has 7091 states and 13299 transitions. [2022-01-10 23:46:40,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 7091 states and 13299 transitions. [2022-01-10 23:46:40,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 23:46:40,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:40,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:40,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:46:40,733 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:40,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:40,735 INFO L85 PathProgramCache]: Analyzing trace with hash 829606090, now seen corresponding path program 1 times [2022-01-10 23:46:40,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:40,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834236784] [2022-01-10 23:46:40,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:40,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:40,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:40,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834236784] [2022-01-10 23:46:40,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834236784] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:40,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:40,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:40,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376944546] [2022-01-10 23:46:40,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:40,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:40,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:40,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:40,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:40,863 INFO L87 Difference]: Start difference. First operand 7091 states and 13299 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:41,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:41,243 INFO L93 Difference]: Finished difference Result 14132 states and 26512 transitions. [2022-01-10 23:46:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-10 23:46:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:41,268 INFO L225 Difference]: With dead ends: 14132 [2022-01-10 23:46:41,268 INFO L226 Difference]: Without dead ends: 7091 [2022-01-10 23:46:41,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:41,278 INFO L933 BasicCegarLoop]: 13239 mSDtfsCounter, 13257 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13257 SdHoareTripleChecker+Valid, 13254 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:41,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13257 Valid, 13254 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:46:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7091 states. [2022-01-10 23:46:41,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7091 to 7091. [2022-01-10 23:46:41,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7091 states, 7086 states have (on average 1.873271239062941) internal successors, (13274), 7090 states have internal predecessors, (13274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7091 states to 7091 states and 13274 transitions. [2022-01-10 23:46:41,518 INFO L78 Accepts]: Start accepts. Automaton has 7091 states and 13274 transitions. Word has length 40 [2022-01-10 23:46:41,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:41,519 INFO L470 AbstractCegarLoop]: Abstraction has 7091 states and 13274 transitions. [2022-01-10 23:46:41,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:41,522 INFO L276 IsEmpty]: Start isEmpty. Operand 7091 states and 13274 transitions. [2022-01-10 23:46:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 23:46:41,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:41,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:41,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:46:41,530 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:41,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:41,530 INFO L85 PathProgramCache]: Analyzing trace with hash -827243673, now seen corresponding path program 1 times [2022-01-10 23:46:41,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:41,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426913687] [2022-01-10 23:46:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:41,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:41,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:41,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:41,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426913687] [2022-01-10 23:46:41,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426913687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:41,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:41,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:41,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568547775] [2022-01-10 23:46:41,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:41,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:41,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:41,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:41,616 INFO L87 Difference]: Start difference. First operand 7091 states and 13274 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:41,956 INFO L93 Difference]: Finished difference Result 15449 states and 28958 transitions. [2022-01-10 23:46:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:41,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-01-10 23:46:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:42,009 INFO L225 Difference]: With dead ends: 15449 [2022-01-10 23:46:42,009 INFO L226 Difference]: Without dead ends: 11880 [2022-01-10 23:46:42,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:42,025 INFO L933 BasicCegarLoop]: 14207 mSDtfsCounter, 13214 mSDsluCounter, 8977 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13214 SdHoareTripleChecker+Valid, 23184 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:42,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13214 Valid, 23184 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:46:42,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11880 states. [2022-01-10 23:46:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11880 to 11880. [2022-01-10 23:46:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11880 states, 11875 states have (on average 1.8754526315789473) internal successors, (22271), 11879 states have internal predecessors, (22271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:42,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11880 states to 11880 states and 22271 transitions. [2022-01-10 23:46:42,351 INFO L78 Accepts]: Start accepts. Automaton has 11880 states and 22271 transitions. Word has length 43 [2022-01-10 23:46:42,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:42,352 INFO L470 AbstractCegarLoop]: Abstraction has 11880 states and 22271 transitions. [2022-01-10 23:46:42,352 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) [2022-01-10 23:46:42,352 INFO L276 IsEmpty]: Start isEmpty. Operand 11880 states and 22271 transitions. [2022-01-10 23:46:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 23:46:42,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:42,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:42,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:46:42,354 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:42,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:42,355 INFO L85 PathProgramCache]: Analyzing trace with hash -409062798, now seen corresponding path program 1 times [2022-01-10 23:46:42,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:42,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397255361] [2022-01-10 23:46:42,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:42,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:42,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:42,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397255361] [2022-01-10 23:46:42,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397255361] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:42,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:42,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:42,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334895927] [2022-01-10 23:46:42,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:42,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:42,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:42,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:42,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:42,426 INFO L87 Difference]: Start difference. First operand 11880 states and 22271 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:42,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:42,864 INFO L93 Difference]: Finished difference Result 28339 states and 53162 transitions. [2022-01-10 23:46:42,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:42,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-10 23:46:42,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:42,916 INFO L225 Difference]: With dead ends: 28339 [2022-01-10 23:46:42,916 INFO L226 Difference]: Without dead ends: 21225 [2022-01-10 23:46:42,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:42,941 INFO L933 BasicCegarLoop]: 13271 mSDtfsCounter, 13213 mSDsluCounter, 8980 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13213 SdHoareTripleChecker+Valid, 22251 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:42,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13213 Valid, 22251 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:42,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21225 states. [2022-01-10 23:46:43,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21225 to 21223. [2022-01-10 23:46:43,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21223 states, 21218 states have (on average 1.8766613252898483) internal successors, (39819), 21222 states have internal predecessors, (39819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:43,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21223 states to 21223 states and 39819 transitions. [2022-01-10 23:46:43,472 INFO L78 Accepts]: Start accepts. Automaton has 21223 states and 39819 transitions. Word has length 45 [2022-01-10 23:46:43,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:43,472 INFO L470 AbstractCegarLoop]: Abstraction has 21223 states and 39819 transitions. [2022-01-10 23:46:43,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:43,473 INFO L276 IsEmpty]: Start isEmpty. Operand 21223 states and 39819 transitions. [2022-01-10 23:46:43,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 23:46:43,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:43,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:43,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:46:43,475 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:43,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:43,475 INFO L85 PathProgramCache]: Analyzing trace with hash -204249296, now seen corresponding path program 1 times [2022-01-10 23:46:43,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:43,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299907615] [2022-01-10 23:46:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:43,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:43,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:43,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299907615] [2022-01-10 23:46:43,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299907615] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:43,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:43,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:43,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234089172] [2022-01-10 23:46:43,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:43,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:43,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:43,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:43,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:43,532 INFO L87 Difference]: Start difference. First operand 21223 states and 39819 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:44,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:44,211 INFO L93 Difference]: Finished difference Result 53637 states and 100659 transitions. [2022-01-10 23:46:44,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:44,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-10 23:46:44,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:44,312 INFO L225 Difference]: With dead ends: 53637 [2022-01-10 23:46:44,312 INFO L226 Difference]: Without dead ends: 39442 [2022-01-10 23:46:44,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:44,349 INFO L933 BasicCegarLoop]: 13271 mSDtfsCounter, 13201 mSDsluCounter, 8983 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13201 SdHoareTripleChecker+Valid, 22254 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:44,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13201 Valid, 22254 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39442 states. [2022-01-10 23:46:45,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39442 to 39438. [2022-01-10 23:46:45,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39438 states, 39433 states have (on average 1.8771333654553293) internal successors, (74021), 39437 states have internal predecessors, (74021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:45,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39438 states to 39438 states and 74021 transitions. [2022-01-10 23:46:45,223 INFO L78 Accepts]: Start accepts. Automaton has 39438 states and 74021 transitions. Word has length 46 [2022-01-10 23:46:45,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:45,225 INFO L470 AbstractCegarLoop]: Abstraction has 39438 states and 74021 transitions. [2022-01-10 23:46:45,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:45,225 INFO L276 IsEmpty]: Start isEmpty. Operand 39438 states and 74021 transitions. [2022-01-10 23:46:45,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 23:46:45,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:45,228 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:45,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:46:45,228 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:45,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:45,228 INFO L85 PathProgramCache]: Analyzing trace with hash -2036725426, now seen corresponding path program 1 times [2022-01-10 23:46:45,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:45,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559576507] [2022-01-10 23:46:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:45,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:45,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:45,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:45,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559576507] [2022-01-10 23:46:45,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559576507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:45,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:45,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:45,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427224182] [2022-01-10 23:46:45,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:45,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:45,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:45,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:45,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:45,285 INFO L87 Difference]: Start difference. First operand 39438 states and 74021 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:46,778 INFO L93 Difference]: Finished difference Result 103269 states and 193828 transitions. [2022-01-10 23:46:46,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:46,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2022-01-10 23:46:46,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:46,970 INFO L225 Difference]: With dead ends: 103269 [2022-01-10 23:46:46,970 INFO L226 Difference]: Without dead ends: 74931 [2022-01-10 23:46:47,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:47,025 INFO L933 BasicCegarLoop]: 13271 mSDtfsCounter, 13200 mSDsluCounter, 8986 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13200 SdHoareTripleChecker+Valid, 22257 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:47,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13200 Valid, 22257 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:47,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74931 states. [2022-01-10 23:46:48,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74931 to 74925. [2022-01-10 23:46:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74925 states, 74920 states have (on average 1.87713561131874) internal successors, (140635), 74924 states have internal predecessors, (140635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74925 states to 74925 states and 140635 transitions. [2022-01-10 23:46:49,070 INFO L78 Accepts]: Start accepts. Automaton has 74925 states and 140635 transitions. Word has length 47 [2022-01-10 23:46:49,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:49,071 INFO L470 AbstractCegarLoop]: Abstraction has 74925 states and 140635 transitions. [2022-01-10 23:46:49,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:49,071 INFO L276 IsEmpty]: Start isEmpty. Operand 74925 states and 140635 transitions. [2022-01-10 23:46:49,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 23:46:49,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:49,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:49,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:46:49,075 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:49,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:49,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1286056839, now seen corresponding path program 1 times [2022-01-10 23:46:49,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:49,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844571558] [2022-01-10 23:46:49,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:49,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:49,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:49,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:49,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844571558] [2022-01-10 23:46:49,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844571558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:49,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:49,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:49,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342495001] [2022-01-10 23:46:49,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:49,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:49,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:49,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:49,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:49,156 INFO L87 Difference]: Start difference. First operand 74925 states and 140635 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:51,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:51,195 INFO L93 Difference]: Finished difference Result 200605 states and 376512 transitions. [2022-01-10 23:46:51,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:51,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-10 23:46:51,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:46:51,595 INFO L225 Difference]: With dead ends: 200605 [2022-01-10 23:46:51,596 INFO L226 Difference]: Without dead ends: 144013 [2022-01-10 23:46:51,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:51,704 INFO L933 BasicCegarLoop]: 13272 mSDtfsCounter, 13199 mSDsluCounter, 8989 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13199 SdHoareTripleChecker+Valid, 22261 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:46:51,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13199 Valid, 22261 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:46:52,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144013 states. [2022-01-10 23:46:54,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144013 to 144005. [2022-01-10 23:46:55,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144005 states, 144000 states have (on average 1.8768541666666667) internal successors, (270267), 144004 states have internal predecessors, (270267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:55,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144005 states to 144005 states and 270267 transitions. [2022-01-10 23:46:55,651 INFO L78 Accepts]: Start accepts. Automaton has 144005 states and 270267 transitions. Word has length 48 [2022-01-10 23:46:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:46:55,651 INFO L470 AbstractCegarLoop]: Abstraction has 144005 states and 270267 transitions. [2022-01-10 23:46:55,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:55,652 INFO L276 IsEmpty]: Start isEmpty. Operand 144005 states and 270267 transitions. [2022-01-10 23:46:55,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 23:46:55,703 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:46:55,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:46:55,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:46:55,704 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:46:55,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:46:55,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2030994267, now seen corresponding path program 1 times [2022-01-10 23:46:55,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:46:55,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757383721] [2022-01-10 23:46:55,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:46:55,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:46:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:46:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:46:55,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:46:55,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757383721] [2022-01-10 23:46:55,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757383721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:46:55,792 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:46:55,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:46:55,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086806309] [2022-01-10 23:46:55,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:46:55,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:46:55,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:46:55,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:46:55,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:46:55,793 INFO L87 Difference]: Start difference. First operand 144005 states and 270267 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:46:59,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:46:59,856 INFO L93 Difference]: Finished difference Result 292714 states and 549193 transitions. [2022-01-10 23:46:59,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:46:59,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 109 [2022-01-10 23:46:59,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:00,482 INFO L225 Difference]: With dead ends: 292714 [2022-01-10 23:47:00,482 INFO L226 Difference]: Without dead ends: 151701 [2022-01-10 23:47:00,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:00,630 INFO L933 BasicCegarLoop]: 16421 mSDtfsCounter, 9175 mSDsluCounter, 8475 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9175 SdHoareTripleChecker+Valid, 24896 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:00,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9175 Valid, 24896 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 23:47:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151701 states. [2022-01-10 23:47:03,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151701 to 144005. [2022-01-10 23:47:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144005 states, 144000 states have (on average 1.8580347222222222) internal successors, (267557), 144004 states have internal predecessors, (267557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:03,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144005 states to 144005 states and 267557 transitions. [2022-01-10 23:47:03,989 INFO L78 Accepts]: Start accepts. Automaton has 144005 states and 267557 transitions. Word has length 109 [2022-01-10 23:47:03,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:03,990 INFO L470 AbstractCegarLoop]: Abstraction has 144005 states and 267557 transitions. [2022-01-10 23:47:03,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:03,990 INFO L276 IsEmpty]: Start isEmpty. Operand 144005 states and 267557 transitions. [2022-01-10 23:47:04,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 23:47:04,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:04,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:04,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:47:04,035 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:47:04,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:04,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1733851631, now seen corresponding path program 1 times [2022-01-10 23:47:04,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:04,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316349263] [2022-01-10 23:47:04,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:04,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:04,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:47:04,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:04,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316349263] [2022-01-10 23:47:04,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316349263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:04,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:04,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:04,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045590459] [2022-01-10 23:47:04,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:04,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:04,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:04,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:04,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:04,113 INFO L87 Difference]: Start difference. First operand 144005 states and 267557 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:08,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:08,291 INFO L93 Difference]: Finished difference Result 296616 states and 551191 transitions. [2022-01-10 23:47:08,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:08,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 23:47:08,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:08,773 INFO L225 Difference]: With dead ends: 296616 [2022-01-10 23:47:08,774 INFO L226 Difference]: Without dead ends: 158175 [2022-01-10 23:47:08,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:08,971 INFO L933 BasicCegarLoop]: 17433 mSDtfsCounter, 8626 mSDsluCounter, 9111 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8626 SdHoareTripleChecker+Valid, 26544 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:08,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8626 Valid, 26544 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 23:47:09,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158175 states. [2022-01-10 23:47:11,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158175 to 144005. [2022-01-10 23:47:11,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144005 states, 144000 states have (on average 1.8418541666666666) internal successors, (265227), 144004 states have internal predecessors, (265227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:12,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144005 states to 144005 states and 265227 transitions. [2022-01-10 23:47:12,313 INFO L78 Accepts]: Start accepts. Automaton has 144005 states and 265227 transitions. Word has length 114 [2022-01-10 23:47:12,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:12,314 INFO L470 AbstractCegarLoop]: Abstraction has 144005 states and 265227 transitions. [2022-01-10 23:47:12,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:12,314 INFO L276 IsEmpty]: Start isEmpty. Operand 144005 states and 265227 transitions. [2022-01-10 23:47:12,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 23:47:12,354 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:12,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:12,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:47:12,354 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:47:12,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:12,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1661926370, now seen corresponding path program 1 times [2022-01-10 23:47:12,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:12,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862158686] [2022-01-10 23:47:12,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:12,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:47:12,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:12,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862158686] [2022-01-10 23:47:12,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862158686] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:12,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:12,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:12,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288217359] [2022-01-10 23:47:12,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:12,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:12,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:12,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:12,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:12,410 INFO L87 Difference]: Start difference. First operand 144005 states and 265227 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:16,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:47:16,239 INFO L93 Difference]: Finished difference Result 299864 states and 553055 transitions. [2022-01-10 23:47:16,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:47:16,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-01-10 23:47:16,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:47:16,735 INFO L225 Difference]: With dead ends: 299864 [2022-01-10 23:47:16,735 INFO L226 Difference]: Without dead ends: 166315 [2022-01-10 23:47:16,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:16,832 INFO L933 BasicCegarLoop]: 18229 mSDtfsCounter, 8321 mSDsluCounter, 9747 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8321 SdHoareTripleChecker+Valid, 27976 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 23:47:16,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8321 Valid, 27976 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 23:47:16,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166315 states. [2022-01-10 23:47:19,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166315 to 144005. [2022-01-10 23:47:19,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144005 states, 144000 states have (on average 1.8290069444444443) internal successors, (263377), 144004 states have internal predecessors, (263377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144005 states to 144005 states and 263377 transitions. [2022-01-10 23:47:20,099 INFO L78 Accepts]: Start accepts. Automaton has 144005 states and 263377 transitions. Word has length 118 [2022-01-10 23:47:20,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:47:20,100 INFO L470 AbstractCegarLoop]: Abstraction has 144005 states and 263377 transitions. [2022-01-10 23:47:20,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:47:20,100 INFO L276 IsEmpty]: Start isEmpty. Operand 144005 states and 263377 transitions. [2022-01-10 23:47:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 23:47:20,154 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:47:20,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:47:20,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:47:20,155 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:47:20,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:47:20,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1676982183, now seen corresponding path program 1 times [2022-01-10 23:47:20,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:47:20,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632815020] [2022-01-10 23:47:20,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:47:20,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:47:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:47:20,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:47:20,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:47:20,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632815020] [2022-01-10 23:47:20,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632815020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:47:20,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:47:20,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:47:20,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099759316] [2022-01-10 23:47:20,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:47:20,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:47:20,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:47:20,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:47:20,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:47:20,309 INFO L87 Difference]: Start difference. First operand 144005 states and 263377 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)