/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_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:05:02,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:05:02,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:05:02,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:05:02,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:05:02,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:05:02,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:05:02,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:05:02,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:05:02,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:05:02,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:05:02,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:05:02,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:05:02,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:05:02,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:05:02,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:05:02,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:05:02,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:05:02,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:05:02,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:05:02,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:05:02,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:05:02,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:05:02,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:05:02,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:05:02,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:05:02,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:05:02,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:05:02,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:05:02,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:05:02,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:05:02,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:05:02,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:05:02,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:05:02,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:05:02,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:05:02,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:05:02,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:05:02,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:05:02,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:05:02,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:05:02,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:05:02,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:05:02,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:05:02,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:05:02,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:05:02,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:05:02,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:05:02,236 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:05:02,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:05:02,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:05:02,237 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:05:02,238 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:05:02,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:05:02,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:05:02,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:05:02,238 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:05:02,238 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:05:02,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:05:02,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:05:02,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:05:02,430 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:05:02,433 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:05:02,434 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c [2022-01-10 12:05:02,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fceb4dd1b/b961532c2d3c4c1db96a4649dce4de66/FLAGdd5ef3a7b [2022-01-10 12:05:02,954 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:05:02,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c [2022-01-10 12:05:02,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fceb4dd1b/b961532c2d3c4c1db96a4649dce4de66/FLAGdd5ef3a7b [2022-01-10 12:05:03,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fceb4dd1b/b961532c2d3c4c1db96a4649dce4de66 [2022-01-10 12:05:03,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:05:03,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:05:03,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:05:03,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:05:03,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:05:03,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:03,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b4cfe50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03, skipping insertion in model container [2022-01-10 12:05:03,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:03,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:05:03,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:05:03,490 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_spec1_product29.cil.c[4117,4130] [2022-01-10 12:05:03,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:05:03,715 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:05:03,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:05:03,733 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_spec1_product29.cil.c[4117,4130] [2022-01-10 12:05:03,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:05:03,816 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:05:03,825 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_spec1_product29.cil.c[4117,4130] [2022-01-10 12:05:03,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:05:03,909 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:05:03,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03 WrapperNode [2022-01-10 12:05:03,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:05:03,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:05:03,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:05:03,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:05:03,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:03,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:04,087 INFO L137 Inliner]: procedures = 95, calls = 342, calls flagged for inlining = 195, calls inlined = 404, statements flattened = 13564 [2022-01-10 12:05:04,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:05:04,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:05:04,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:05:04,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:05:04,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:04,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:04,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:04,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:04,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:04,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:04,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:04,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:05:04,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:05:04,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:05:04,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:05:04,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (1/1) ... [2022-01-10 12:05:04,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:05:04,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:05:04,330 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 12:05:04,352 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 12:05:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:05:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:05:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:05:04,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:05:04,472 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:05:04,473 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:05:09,045 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:05:09,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:05:09,083 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:05:09,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:05:09 BoogieIcfgContainer [2022-01-10 12:05:09,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:05:09,089 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:05:09,089 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:05:09,091 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:05:09,094 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:05:09" (1/1) ... [2022-01-10 12:05:09,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:05:09 BasicIcfg [2022-01-10 12:05:09,719 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:05:09,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:05:09,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:05:09,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:05:09,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:05:03" (1/4) ... [2022-01-10 12:05:09,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc1e251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:05:09, skipping insertion in model container [2022-01-10 12:05:09,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:05:03" (2/4) ... [2022-01-10 12:05:09,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc1e251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:05:09, skipping insertion in model container [2022-01-10 12:05:09,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:05:09" (3/4) ... [2022-01-10 12:05:09,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc1e251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:05:09, skipping insertion in model container [2022-01-10 12:05:09,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:05:09" (4/4) ... [2022-01-10 12:05:09,724 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product29.cil.cTransformedIcfg [2022-01-10 12:05:09,727 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:05:09,728 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 12:05:09,785 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:05:09,791 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 12:05:09,791 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 12:05:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 3629 states, 3623 states have (on average 1.875241512558653) internal successors, (6794), 3628 states have internal predecessors, (6794), 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 12:05:09,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 12:05:09,852 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:09,853 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] [2022-01-10 12:05:09,853 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 12:05:09,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:09,856 INFO L85 PathProgramCache]: Analyzing trace with hash -315478901, now seen corresponding path program 1 times [2022-01-10 12:05:09,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:09,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398992258] [2022-01-10 12:05:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:09,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:10,137 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 12:05:10,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:10,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398992258] [2022-01-10 12:05:10,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398992258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:10,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:10,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:10,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728309722] [2022-01-10 12:05:10,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:10,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:10,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:10,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:10,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:10,168 INFO L87 Difference]: Start difference. First operand has 3629 states, 3623 states have (on average 1.875241512558653) internal successors, (6794), 3628 states have internal predecessors, (6794), 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 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 12:05:10,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:10,512 INFO L93 Difference]: Finished difference Result 10792 states and 20222 transitions. [2022-01-10 12:05:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:10,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2022-01-10 12:05:10,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:10,559 INFO L225 Difference]: With dead ends: 10792 [2022-01-10 12:05:10,560 INFO L226 Difference]: Without dead ends: 7165 [2022-01-10 12:05:10,574 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 12:05:10,579 INFO L933 BasicCegarLoop]: 13423 mSDtfsCounter, 6755 mSDsluCounter, 6661 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6755 SdHoareTripleChecker+Valid, 20084 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:10,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6755 Valid, 20084 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:05:10,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7165 states. [2022-01-10 12:05:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7165 to 3618. [2022-01-10 12:05:10,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3613 states have (on average 1.8737890949349572) internal successors, (6770), 3617 states have internal predecessors, (6770), 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 12:05:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6770 transitions. [2022-01-10 12:05:10,759 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6770 transitions. Word has length 63 [2022-01-10 12:05:10,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:10,760 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 6770 transitions. [2022-01-10 12:05:10,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 12:05:10,760 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6770 transitions. [2022-01-10 12:05:10,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-10 12:05:10,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:10,766 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] [2022-01-10 12:05:10,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:05:10,766 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 12:05:10,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:10,769 INFO L85 PathProgramCache]: Analyzing trace with hash -8511236, now seen corresponding path program 1 times [2022-01-10 12:05:10,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:10,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454314763] [2022-01-10 12:05:10,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:10,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:10,900 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 12:05:10,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:10,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454314763] [2022-01-10 12:05:10,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454314763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:10,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:10,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:10,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569680580] [2022-01-10 12:05:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:10,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:10,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:10,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:10,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:10,903 INFO L87 Difference]: Start difference. First operand 3618 states and 6770 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 12:05:11,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:11,170 INFO L93 Difference]: Finished difference Result 10697 states and 20030 transitions. [2022-01-10 12:05:11,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:11,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2022-01-10 12:05:11,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:11,198 INFO L225 Difference]: With dead ends: 10697 [2022-01-10 12:05:11,198 INFO L226 Difference]: Without dead ends: 7129 [2022-01-10 12:05:11,206 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 12:05:11,207 INFO L933 BasicCegarLoop]: 13286 mSDtfsCounter, 6657 mSDsluCounter, 6601 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6657 SdHoareTripleChecker+Valid, 19887 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:11,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6657 Valid, 19887 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:05:11,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2022-01-10 12:05:11,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 3618. [2022-01-10 12:05:11,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3613 states have (on average 1.8668696374204263) internal successors, (6745), 3617 states have internal predecessors, (6745), 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 12:05:11,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6745 transitions. [2022-01-10 12:05:11,397 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6745 transitions. Word has length 70 [2022-01-10 12:05:11,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:11,397 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 6745 transitions. [2022-01-10 12:05:11,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 12:05:11,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6745 transitions. [2022-01-10 12:05:11,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-10 12:05:11,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:11,401 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] [2022-01-10 12:05:11,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:05:11,401 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 12:05:11,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:11,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1753948715, now seen corresponding path program 1 times [2022-01-10 12:05:11,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:11,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934906047] [2022-01-10 12:05:11,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:11,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:11,460 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 12:05:11,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:11,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934906047] [2022-01-10 12:05:11,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934906047] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:11,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:11,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:11,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961784882] [2022-01-10 12:05:11,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:11,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:11,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:11,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:11,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:11,462 INFO L87 Difference]: Start difference. First operand 3618 states and 6745 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 12:05:11,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:11,564 INFO L93 Difference]: Finished difference Result 7165 states and 13392 transitions. [2022-01-10 12:05:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:11,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2022-01-10 12:05:11,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:11,578 INFO L225 Difference]: With dead ends: 7165 [2022-01-10 12:05:11,578 INFO L226 Difference]: Without dead ends: 3618 [2022-01-10 12:05:11,584 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 12:05:11,585 INFO L933 BasicCegarLoop]: 6726 mSDtfsCounter, 6734 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6734 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:11,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6734 Valid, 6733 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2022-01-10 12:05:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 3618. [2022-01-10 12:05:11,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3613 states have (on average 1.8663160808192638) internal successors, (6743), 3617 states have internal predecessors, (6743), 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 12:05:11,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6743 transitions. [2022-01-10 12:05:11,673 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6743 transitions. Word has length 73 [2022-01-10 12:05:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:11,673 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 6743 transitions. [2022-01-10 12:05:11,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 12:05:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6743 transitions. [2022-01-10 12:05:11,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-10 12:05:11,677 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:11,677 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] [2022-01-10 12:05:11,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:05:11,677 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:11,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:11,678 INFO L85 PathProgramCache]: Analyzing trace with hash 906648239, now seen corresponding path program 1 times [2022-01-10 12:05:11,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:11,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255021605] [2022-01-10 12:05:11,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:11,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:11,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:11,740 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 12:05:11,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:11,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255021605] [2022-01-10 12:05:11,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255021605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:11,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:11,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:11,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170841498] [2022-01-10 12:05:11,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:11,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:11,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:11,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:11,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:11,742 INFO L87 Difference]: Start difference. First operand 3618 states and 6743 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 12:05:11,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:11,953 INFO L93 Difference]: Finished difference Result 7129 states and 13319 transitions. [2022-01-10 12:05:11,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:11,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2022-01-10 12:05:11,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:11,985 INFO L225 Difference]: With dead ends: 7129 [2022-01-10 12:05:11,986 INFO L226 Difference]: Without dead ends: 3618 [2022-01-10 12:05:11,993 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 12:05:12,001 INFO L933 BasicCegarLoop]: 6648 mSDtfsCounter, 6715 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6715 SdHoareTripleChecker+Valid, 6663 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:12,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6715 Valid, 6663 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:05:12,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2022-01-10 12:05:12,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 3618. [2022-01-10 12:05:12,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3613 states have (on average 1.8635482978134514) internal successors, (6733), 3617 states have internal predecessors, (6733), 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 12:05:12,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6733 transitions. [2022-01-10 12:05:12,142 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6733 transitions. Word has length 75 [2022-01-10 12:05:12,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:12,142 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 6733 transitions. [2022-01-10 12:05:12,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 12:05:12,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6733 transitions. [2022-01-10 12:05:12,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-10 12:05:12,147 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:12,147 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] [2022-01-10 12:05:12,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:05:12,147 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:12,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:12,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1413145529, now seen corresponding path program 1 times [2022-01-10 12:05:12,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:12,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507984461] [2022-01-10 12:05:12,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:12,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:12,300 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 12:05:12,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:12,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507984461] [2022-01-10 12:05:12,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507984461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:12,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:12,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:05:12,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339678858] [2022-01-10 12:05:12,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:12,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:12,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:12,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:12,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:12,302 INFO L87 Difference]: Start difference. First operand 3618 states and 6733 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 12:05:12,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:12,587 INFO L93 Difference]: Finished difference Result 8555 states and 15976 transitions. [2022-01-10 12:05:12,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:12,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 77 [2022-01-10 12:05:12,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:12,606 INFO L225 Difference]: With dead ends: 8555 [2022-01-10 12:05:12,606 INFO L226 Difference]: Without dead ends: 5963 [2022-01-10 12:05:12,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:05:12,615 INFO L933 BasicCegarLoop]: 7022 mSDtfsCounter, 6628 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6628 SdHoareTripleChecker+Valid, 11358 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:12,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6628 Valid, 11358 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:05:12,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2022-01-10 12:05:12,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 5946. [2022-01-10 12:05:12,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5941 states have (on average 1.8641642821073894) internal successors, (11075), 5945 states have internal predecessors, (11075), 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 12:05:12,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 11075 transitions. [2022-01-10 12:05:12,812 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 11075 transitions. Word has length 77 [2022-01-10 12:05:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:12,818 INFO L470 AbstractCegarLoop]: Abstraction has 5946 states and 11075 transitions. [2022-01-10 12:05:12,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 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 12:05:12,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 11075 transitions. [2022-01-10 12:05:12,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 12:05:12,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:12,823 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] [2022-01-10 12:05:12,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:05:12,823 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash -454441701, now seen corresponding path program 1 times [2022-01-10 12:05:12,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:12,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163926731] [2022-01-10 12:05:12,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:12,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:12,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:12,925 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 12:05:12,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:12,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163926731] [2022-01-10 12:05:12,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163926731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:12,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:12,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:05:12,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420542346] [2022-01-10 12:05:12,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:12,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:12,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:12,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:12,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:12,927 INFO L87 Difference]: Start difference. First operand 5946 states and 11075 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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 12:05:13,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:13,163 INFO L93 Difference]: Finished difference Result 14835 states and 27691 transitions. [2022-01-10 12:05:13,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:13,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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 78 [2022-01-10 12:05:13,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:13,186 INFO L225 Difference]: With dead ends: 14835 [2022-01-10 12:05:13,186 INFO L226 Difference]: Without dead ends: 10519 [2022-01-10 12:05:13,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:05:13,197 INFO L933 BasicCegarLoop]: 6672 mSDtfsCounter, 6613 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6613 SdHoareTripleChecker+Valid, 11027 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:13,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6613 Valid, 11027 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:05:13,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-01-10 12:05:13,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 10502. [2022-01-10 12:05:13,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10502 states, 10497 states have (on average 1.8644374583214252) internal successors, (19571), 10501 states have internal predecessors, (19571), 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 12:05:13,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10502 states to 10502 states and 19571 transitions. [2022-01-10 12:05:13,471 INFO L78 Accepts]: Start accepts. Automaton has 10502 states and 19571 transitions. Word has length 78 [2022-01-10 12:05:13,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:13,471 INFO L470 AbstractCegarLoop]: Abstraction has 10502 states and 19571 transitions. [2022-01-10 12:05:13,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 2 states have internal predecessors, (78), 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 12:05:13,471 INFO L276 IsEmpty]: Start isEmpty. Operand 10502 states and 19571 transitions. [2022-01-10 12:05:13,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 12:05:13,479 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:13,479 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] [2022-01-10 12:05:13,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:05:13,479 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:13,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:13,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1424273844, now seen corresponding path program 1 times [2022-01-10 12:05:13,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:13,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905546514] [2022-01-10 12:05:13,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:13,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:13,549 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 12:05:13,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:13,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905546514] [2022-01-10 12:05:13,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905546514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:13,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:13,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:05:13,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959916218] [2022-01-10 12:05:13,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:13,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:13,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:13,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:13,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:13,552 INFO L87 Difference]: Start difference. First operand 10502 states and 19571 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 12:05:13,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:13,930 INFO L93 Difference]: Finished difference Result 27195 states and 50732 transitions. [2022-01-10 12:05:13,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:13,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2022-01-10 12:05:13,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:13,985 INFO L225 Difference]: With dead ends: 27195 [2022-01-10 12:05:13,985 INFO L226 Difference]: Without dead ends: 19421 [2022-01-10 12:05:14,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:05:14,007 INFO L933 BasicCegarLoop]: 6658 mSDtfsCounter, 6598 mSDsluCounter, 4374 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6598 SdHoareTripleChecker+Valid, 11032 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:14,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6598 Valid, 11032 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:05:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19421 states. [2022-01-10 12:05:14,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19421 to 19404. [2022-01-10 12:05:14,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19404 states, 19399 states have (on average 1.8637043146553947) internal successors, (36154), 19403 states have internal predecessors, (36154), 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 12:05:14,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19404 states to 19404 states and 36154 transitions. [2022-01-10 12:05:14,477 INFO L78 Accepts]: Start accepts. Automaton has 19404 states and 36154 transitions. Word has length 79 [2022-01-10 12:05:14,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:14,478 INFO L470 AbstractCegarLoop]: Abstraction has 19404 states and 36154 transitions. [2022-01-10 12:05:14,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 12:05:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 19404 states and 36154 transitions. [2022-01-10 12:05:14,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-10 12:05:14,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:14,481 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] [2022-01-10 12:05:14,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:05:14,482 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 12:05:14,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:14,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2102828757, now seen corresponding path program 1 times [2022-01-10 12:05:14,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:14,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730685649] [2022-01-10 12:05:14,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:14,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:14,539 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 12:05:14,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:14,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730685649] [2022-01-10 12:05:14,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730685649] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:14,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:14,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:05:14,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054456310] [2022-01-10 12:05:14,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:14,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:14,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:14,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:14,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:14,541 INFO L87 Difference]: Start difference. First operand 19404 states and 36154 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 12:05:15,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:15,180 INFO L93 Difference]: Finished difference Result 51495 states and 95971 transitions. [2022-01-10 12:05:15,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:15,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2022-01-10 12:05:15,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:15,265 INFO L225 Difference]: With dead ends: 51495 [2022-01-10 12:05:15,265 INFO L226 Difference]: Without dead ends: 36795 [2022-01-10 12:05:15,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:05:15,292 INFO L933 BasicCegarLoop]: 6644 mSDtfsCounter, 6583 mSDsluCounter, 4393 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6583 SdHoareTripleChecker+Valid, 11037 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:15,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6583 Valid, 11037 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:05:15,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36795 states. [2022-01-10 12:05:16,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36795 to 36778. [2022-01-10 12:05:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36778 states, 36773 states have (on average 1.8619367470698611) internal successors, (68469), 36777 states have internal predecessors, (68469), 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 12:05:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36778 states to 36778 states and 68469 transitions. [2022-01-10 12:05:16,152 INFO L78 Accepts]: Start accepts. Automaton has 36778 states and 68469 transitions. Word has length 80 [2022-01-10 12:05:16,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:16,153 INFO L470 AbstractCegarLoop]: Abstraction has 36778 states and 68469 transitions. [2022-01-10 12:05:16,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 12:05:16,154 INFO L276 IsEmpty]: Start isEmpty. Operand 36778 states and 68469 transitions. [2022-01-10 12:05:16,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 12:05:16,157 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:16,158 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] [2022-01-10 12:05:16,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:05:16,158 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 12:05:16,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:16,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1891002098, now seen corresponding path program 1 times [2022-01-10 12:05:16,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:16,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979676498] [2022-01-10 12:05:16,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:16,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:16,225 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 12:05:16,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:16,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979676498] [2022-01-10 12:05:16,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979676498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:16,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:16,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:05:16,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488116100] [2022-01-10 12:05:16,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:16,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:16,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:16,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:16,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:16,227 INFO L87 Difference]: Start difference. First operand 36778 states and 68469 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 12:05:17,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:17,341 INFO L93 Difference]: Finished difference Result 99235 states and 184698 transitions. [2022-01-10 12:05:17,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:17,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2022-01-10 12:05:17,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:17,494 INFO L225 Difference]: With dead ends: 99235 [2022-01-10 12:05:17,494 INFO L226 Difference]: Without dead ends: 70673 [2022-01-10 12:05:17,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:05:17,541 INFO L933 BasicCegarLoop]: 6630 mSDtfsCounter, 6568 mSDsluCounter, 4412 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6568 SdHoareTripleChecker+Valid, 11042 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:17,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6568 Valid, 11042 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:05:17,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70673 states. [2022-01-10 12:05:18,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70673 to 70656. [2022-01-10 12:05:18,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70656 states, 70651 states have (on average 1.8593367397489067) internal successors, (131364), 70655 states have internal predecessors, (131364), 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 12:05:19,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70656 states to 70656 states and 131364 transitions. [2022-01-10 12:05:19,033 INFO L78 Accepts]: Start accepts. Automaton has 70656 states and 131364 transitions. Word has length 81 [2022-01-10 12:05:19,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:19,033 INFO L470 AbstractCegarLoop]: Abstraction has 70656 states and 131364 transitions. [2022-01-10 12:05:19,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 12:05:19,034 INFO L276 IsEmpty]: Start isEmpty. Operand 70656 states and 131364 transitions. [2022-01-10 12:05:19,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 12:05:19,038 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:19,038 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:19,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:05:19,038 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 12:05:19,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:19,039 INFO L85 PathProgramCache]: Analyzing trace with hash -929388081, now seen corresponding path program 1 times [2022-01-10 12:05:19,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:19,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142885132] [2022-01-10 12:05:19,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:19,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:19,093 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 12:05:19,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:19,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142885132] [2022-01-10 12:05:19,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142885132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:19,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:19,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:19,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849939242] [2022-01-10 12:05:19,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:19,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:19,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:19,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:19,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:19,095 INFO L87 Difference]: Start difference. First operand 70656 states and 131364 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 12:05:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:20,809 INFO L93 Difference]: Finished difference Result 197239 states and 366561 transitions. [2022-01-10 12:05:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:20,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2022-01-10 12:05:20,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:21,106 INFO L225 Difference]: With dead ends: 197239 [2022-01-10 12:05:21,106 INFO L226 Difference]: Without dead ends: 141114 [2022-01-10 12:05:21,315 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 12:05:21,315 INFO L933 BasicCegarLoop]: 9918 mSDtfsCounter, 6641 mSDsluCounter, 6571 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6641 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:21,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6641 Valid, 16489 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:21,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141114 states. [2022-01-10 12:05:23,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141114 to 141114. [2022-01-10 12:05:23,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141114 states, 141109 states have (on average 1.8594632518124288) internal successors, (262387), 141113 states have internal predecessors, (262387), 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 12:05:24,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141114 states to 141114 states and 262387 transitions. [2022-01-10 12:05:24,142 INFO L78 Accepts]: Start accepts. Automaton has 141114 states and 262387 transitions. Word has length 81 [2022-01-10 12:05:24,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:24,142 INFO L470 AbstractCegarLoop]: Abstraction has 141114 states and 262387 transitions. [2022-01-10 12:05:24,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 12:05:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand 141114 states and 262387 transitions. [2022-01-10 12:05:24,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 12:05:24,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:24,149 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] [2022-01-10 12:05:24,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:05:24,149 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:24,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:24,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1253761296, now seen corresponding path program 1 times [2022-01-10 12:05:24,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:24,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479601106] [2022-01-10 12:05:24,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:24,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:24,213 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 12:05:24,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:24,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479601106] [2022-01-10 12:05:24,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479601106] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:24,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:24,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:05:24,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805441766] [2022-01-10 12:05:24,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:24,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:05:24,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:24,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:05:24,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:05:24,215 INFO L87 Difference]: Start difference. First operand 141114 states and 262387 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 12:05:27,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:27,560 INFO L93 Difference]: Finished difference Result 393764 states and 731842 transitions. [2022-01-10 12:05:27,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:05:27,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2022-01-10 12:05:27,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:05:28,181 INFO L225 Difference]: With dead ends: 393764 [2022-01-10 12:05:28,181 INFO L226 Difference]: Without dead ends: 281848 [2022-01-10 12:05:28,313 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 12:05:28,313 INFO L933 BasicCegarLoop]: 6660 mSDtfsCounter, 6576 mSDsluCounter, 6574 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6576 SdHoareTripleChecker+Valid, 13234 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:05:28,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6576 Valid, 13234 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:05:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281848 states. [2022-01-10 12:05:32,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281848 to 281846. [2022-01-10 12:05:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281846 states, 281841 states have (on average 1.8594987954201128) internal successors, (524083), 281845 states have internal predecessors, (524083), 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 12:05:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281846 states to 281846 states and 524083 transitions. [2022-01-10 12:05:34,215 INFO L78 Accepts]: Start accepts. Automaton has 281846 states and 524083 transitions. Word has length 82 [2022-01-10 12:05:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:05:34,216 INFO L470 AbstractCegarLoop]: Abstraction has 281846 states and 524083 transitions. [2022-01-10 12:05:34,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 12:05:34,216 INFO L276 IsEmpty]: Start isEmpty. Operand 281846 states and 524083 transitions. [2022-01-10 12:05:34,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 12:05:34,226 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:05:34,226 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] [2022-01-10 12:05:34,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:05:34,226 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 12:05:34,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:05:34,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1289800800, now seen corresponding path program 1 times [2022-01-10 12:05:34,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:05:34,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623143721] [2022-01-10 12:05:34,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:05:34,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:05:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:05:34,347 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 12:05:34,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:05:34,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623143721] [2022-01-10 12:05:34,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623143721] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:05:34,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:05:34,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:05:34,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147610868] [2022-01-10 12:05:34,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:05:34,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:05:34,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:05:34,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:05:34,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:05:34,349 INFO L87 Difference]: Start difference. First operand 281846 states and 524083 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 12:05:53,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:05:53,217 INFO L93 Difference]: Finished difference Result 1690292 states and 3143293 transitions. [2022-01-10 12:05:53,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:05:53,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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 82 [2022-01-10 12:05:53,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted.