/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:36:01,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:36:01,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:36:01,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:36:01,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:36:01,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:36:01,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:36:01,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:36:01,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:36:01,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:36:01,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:36:01,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:36:01,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:36:01,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:36:01,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:36:01,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:36:01,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:36:01,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:36:01,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:36:01,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:36:01,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:36:01,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:36:01,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:36:01,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:36:01,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:36:01,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:36:01,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:36:01,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:36:01,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:36:01,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:36:01,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:36:01,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:36:01,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:36:01,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:36:01,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:36:01,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:36:01,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:36:01,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:36:01,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:36:01,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:36:01,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:36:01,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:36:01,369 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:36:01,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:36:01,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:36:01,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:36:01,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:36:01,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:36:01,371 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:36:01,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:36:01,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:36:01,372 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:36:01,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:36:01,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:36:01,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:36:01,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:36:01,373 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:36:01,373 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:36:01,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:36:01,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:36:01,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:36:01,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:36:01,583 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:36:01,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2022-01-11 05:36:01,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b317e346/2bea7179b8f34662b2ba230c0d0e91d0/FLAGc06befee0 [2022-01-11 05:36:02,112 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:36:02,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c [2022-01-11 05:36:02,134 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b317e346/2bea7179b8f34662b2ba230c0d0e91d0/FLAGc06befee0 [2022-01-11 05:36:02,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b317e346/2bea7179b8f34662b2ba230c0d0e91d0 [2022-01-11 05:36:02,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:36:02,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:36:02,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:36:02,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:36:02,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:36:02,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:36:02" (1/1) ... [2022-01-11 05:36:02,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f7471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:02, skipping insertion in model container [2022-01-11 05:36:02,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:36:02" (1/1) ... [2022-01-11 05:36:02,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:36:02,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:36:02,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2022-01-11 05:36:03,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:36:03,023 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:36:03,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:36:03,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2022-01-11 05:36:03,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:36:03,117 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:36:03,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product32.cil.c[3233,3246] [2022-01-11 05:36:03,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:36:03,213 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:36:03,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03 WrapperNode [2022-01-11 05:36:03,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:36:03,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:36:03,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:36:03,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:36:03,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:03,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:03,990 INFO L137 Inliner]: procedures = 99, calls = 361, calls flagged for inlining = 213, calls inlined = 2088, statements flattened = 69357 [2022-01-11 05:36:03,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:36:03,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:36:03,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:36:03,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:36:03,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:03,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:04,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:04,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:04,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:04,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:04,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:05,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:36:05,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:36:05,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:36:05,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:36:05,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (1/1) ... [2022-01-11 05:36:05,141 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:36:05,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:36:05,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:36:05,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:36:05,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:36:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:36:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:36:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:36:05,439 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:36:05,440 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:36:24,249 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:36:24,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:36:24,324 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:36:24,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:36:24 BoogieIcfgContainer [2022-01-11 05:36:24,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:36:24,346 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:36:24,346 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:36:24,347 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:36:24,349 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:36:24" (1/1) ... [2022-01-11 05:36:27,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:36:27 BasicIcfg [2022-01-11 05:36:27,672 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:36:27,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:36:27,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:36:27,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:36:27,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:36:02" (1/4) ... [2022-01-11 05:36:27,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65667abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:36:27, skipping insertion in model container [2022-01-11 05:36:27,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:36:03" (2/4) ... [2022-01-11 05:36:27,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65667abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:36:27, skipping insertion in model container [2022-01-11 05:36:27,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:36:24" (3/4) ... [2022-01-11 05:36:27,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65667abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:36:27, skipping insertion in model container [2022-01-11 05:36:27,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:36:27" (4/4) ... [2022-01-11 05:36:27,678 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product32.cil.cTransformedIcfg [2022-01-11 05:36:27,683 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:36:27,683 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:36:27,763 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:36:27,770 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:36:27,771 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:36:28,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 18148 states, 18137 states have (on average 1.87324254286817) internal successors, (33975), 18147 states have internal predecessors, (33975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 05:36:28,008 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:28,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:28,009 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:28,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:28,013 INFO L85 PathProgramCache]: Analyzing trace with hash -538360006, now seen corresponding path program 1 times [2022-01-11 05:36:28,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:28,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936041212] [2022-01-11 05:36:28,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:28,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:28,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:28,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936041212] [2022-01-11 05:36:28,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936041212] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:28,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:28,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:36:28,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836536631] [2022-01-11 05:36:28,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:28,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:36:28,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:28,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:36:28,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:36:28,440 INFO L87 Difference]: Start difference. First operand has 18148 states, 18137 states have (on average 1.87324254286817) internal successors, (33975), 18147 states have internal predecessors, (33975), 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 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:30,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:30,690 INFO L93 Difference]: Finished difference Result 72381 states and 135533 transitions. [2022-01-11 05:36:30,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:36:30,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-01-11 05:36:30,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:30,928 INFO L225 Difference]: With dead ends: 72381 [2022-01-11 05:36:30,928 INFO L226 Difference]: Without dead ends: 54239 [2022-01-11 05:36:30,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:30,977 INFO L933 BasicCegarLoop]: 67726 mSDtfsCounter, 101440 mSDsluCounter, 101619 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101440 SdHoareTripleChecker+Valid, 169345 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:30,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101440 Valid, 169345 Invalid, 77 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:36:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54239 states. [2022-01-11 05:36:31,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54239 to 18141. [2022-01-11 05:36:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18141 states, 18131 states have (on average 1.8726490541062268) internal successors, (33953), 18140 states have internal predecessors, (33953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18141 states to 18141 states and 33953 transitions. [2022-01-11 05:36:31,879 INFO L78 Accepts]: Start accepts. Automaton has 18141 states and 33953 transitions. Word has length 34 [2022-01-11 05:36:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:31,879 INFO L470 AbstractCegarLoop]: Abstraction has 18141 states and 33953 transitions. [2022-01-11 05:36:31,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:31,880 INFO L276 IsEmpty]: Start isEmpty. Operand 18141 states and 33953 transitions. [2022-01-11 05:36:31,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-11 05:36:31,886 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:31,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:31,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:36:31,886 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:31,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:31,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1863765523, now seen corresponding path program 1 times [2022-01-11 05:36:31,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:31,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827767387] [2022-01-11 05:36:31,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:31,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:31,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:31,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827767387] [2022-01-11 05:36:31,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827767387] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:31,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:31,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:31,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060076177] [2022-01-11 05:36:31,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:31,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:31,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:31,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:31,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:31,991 INFO L87 Difference]: Start difference. First operand 18141 states and 33953 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:32,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:32,587 INFO L93 Difference]: Finished difference Result 36199 states and 67756 transitions. [2022-01-11 05:36:32,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:36:32,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-11 05:36:32,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:32,636 INFO L225 Difference]: With dead ends: 36199 [2022-01-11 05:36:32,636 INFO L226 Difference]: Without dead ends: 18073 [2022-01-11 05:36:32,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:32,668 INFO L933 BasicCegarLoop]: 33815 mSDtfsCounter, 33807 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33807 SdHoareTripleChecker+Valid, 33823 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:32,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33807 Valid, 33823 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-11 05:36:33,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-11 05:36:33,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8721696285223939) internal successors, (33817), 18072 states have internal predecessors, (33817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33817 transitions. [2022-01-11 05:36:33,256 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33817 transitions. Word has length 35 [2022-01-11 05:36:33,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:33,257 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33817 transitions. [2022-01-11 05:36:33,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:33,260 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33817 transitions. [2022-01-11 05:36:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 05:36:33,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:33,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:33,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:36:33,266 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:33,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:33,266 INFO L85 PathProgramCache]: Analyzing trace with hash -715303621, now seen corresponding path program 1 times [2022-01-11 05:36:33,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:33,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814391102] [2022-01-11 05:36:33,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:33,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:33,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:33,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814391102] [2022-01-11 05:36:33,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814391102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:33,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:33,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:36:33,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412624137] [2022-01-11 05:36:33,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:33,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:36:33,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:33,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:36:33,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:36:33,503 INFO L87 Difference]: Start difference. First operand 18073 states and 33817 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:34,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:34,455 INFO L93 Difference]: Finished difference Result 36124 states and 67605 transitions. [2022-01-11 05:36:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:36:34,455 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-11 05:36:34,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:34,491 INFO L225 Difference]: With dead ends: 36124 [2022-01-11 05:36:34,492 INFO L226 Difference]: Without dead ends: 18073 [2022-01-11 05:36:34,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:36:34,511 INFO L933 BasicCegarLoop]: 33801 mSDtfsCounter, 168995 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168995 SdHoareTripleChecker+Valid, 33829 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:34,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168995 Valid, 33829 Invalid, 32 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:34,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-11 05:36:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-11 05:36:35,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8720589049438079) internal successors, (33815), 18072 states have internal predecessors, (33815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:35,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33815 transitions. [2022-01-11 05:36:35,131 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33815 transitions. Word has length 37 [2022-01-11 05:36:35,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:35,131 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33815 transitions. [2022-01-11 05:36:35,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:35,131 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33815 transitions. [2022-01-11 05:36:35,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 05:36:35,132 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:35,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:35,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:36:35,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:35,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:35,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1096320543, now seen corresponding path program 1 times [2022-01-11 05:36:35,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:35,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590142020] [2022-01-11 05:36:35,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:35,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:35,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:35,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590142020] [2022-01-11 05:36:35,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590142020] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:35,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:35,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:36:35,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803023654] [2022-01-11 05:36:35,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:35,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:36:35,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:35,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:36:35,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:35,211 INFO L87 Difference]: Start difference. First operand 18073 states and 33815 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:35,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:35,970 INFO L93 Difference]: Finished difference Result 36118 states and 67591 transitions. [2022-01-11 05:36:35,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:36:35,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-01-11 05:36:35,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:36,065 INFO L225 Difference]: With dead ends: 36118 [2022-01-11 05:36:36,065 INFO L226 Difference]: Without dead ends: 18073 [2022-01-11 05:36:36,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:36:36,085 INFO L933 BasicCegarLoop]: 33783 mSDtfsCounter, 67582 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67582 SdHoareTripleChecker+Valid, 33826 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:36,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67582 Valid, 33826 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:36,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-11 05:36:36,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-11 05:36:36,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8719481813652217) internal successors, (33813), 18072 states have internal predecessors, (33813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:36,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33813 transitions. [2022-01-11 05:36:36,668 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33813 transitions. Word has length 38 [2022-01-11 05:36:36,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:36,668 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33813 transitions. [2022-01-11 05:36:36,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:36,668 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33813 transitions. [2022-01-11 05:36:36,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:36:36,669 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:36,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:36,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:36:36,670 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:36,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:36,670 INFO L85 PathProgramCache]: Analyzing trace with hash 983873254, now seen corresponding path program 1 times [2022-01-11 05:36:36,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:36,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431030459] [2022-01-11 05:36:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:36,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:36,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:36,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:36,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431030459] [2022-01-11 05:36:36,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431030459] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:36,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:36,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:36:36,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105817619] [2022-01-11 05:36:36,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:36,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:36:36,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:36,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:36:36,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:36:36,744 INFO L87 Difference]: Start difference. First operand 18073 states and 33813 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:37,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:37,511 INFO L93 Difference]: Finished difference Result 36118 states and 67588 transitions. [2022-01-11 05:36:37,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:36:37,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-01-11 05:36:37,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:37,552 INFO L225 Difference]: With dead ends: 36118 [2022-01-11 05:36:37,552 INFO L226 Difference]: Without dead ends: 18073 [2022-01-11 05:36:37,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:36:37,575 INFO L933 BasicCegarLoop]: 33783 mSDtfsCounter, 101367 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101367 SdHoareTripleChecker+Valid, 33826 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:37,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101367 Valid, 33826 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-11 05:36:38,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-11 05:36:38,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8718374577866357) internal successors, (33811), 18072 states have internal predecessors, (33811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:38,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33811 transitions. [2022-01-11 05:36:38,474 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33811 transitions. Word has length 39 [2022-01-11 05:36:38,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:38,477 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33811 transitions. [2022-01-11 05:36:38,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:38,477 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33811 transitions. [2022-01-11 05:36:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 05:36:38,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:38,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:38,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:36:38,478 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:38,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:38,479 INFO L85 PathProgramCache]: Analyzing trace with hash 773226962, now seen corresponding path program 1 times [2022-01-11 05:36:38,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:38,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468781618] [2022-01-11 05:36:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:38,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:38,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:38,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:38,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468781618] [2022-01-11 05:36:38,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468781618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:38,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:38,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:36:38,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028575124] [2022-01-11 05:36:38,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:38,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:36:38,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:38,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:36:38,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:36:38,546 INFO L87 Difference]: Start difference. First operand 18073 states and 33811 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:39,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:39,431 INFO L93 Difference]: Finished difference Result 36118 states and 67585 transitions. [2022-01-11 05:36:39,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:36:39,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-11 05:36:39,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:39,465 INFO L225 Difference]: With dead ends: 36118 [2022-01-11 05:36:39,466 INFO L226 Difference]: Without dead ends: 18073 [2022-01-11 05:36:39,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:36:39,479 INFO L933 BasicCegarLoop]: 33783 mSDtfsCounter, 67570 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67570 SdHoareTripleChecker+Valid, 33846 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:39,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67570 Valid, 33846 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:39,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-11 05:36:39,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-11 05:36:39,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8717267342080497) internal successors, (33809), 18072 states have internal predecessors, (33809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33809 transitions. [2022-01-11 05:36:39,993 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33809 transitions. Word has length 40 [2022-01-11 05:36:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:39,993 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33809 transitions. [2022-01-11 05:36:39,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:39,994 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33809 transitions. [2022-01-11 05:36:39,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-11 05:36:39,995 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:39,995 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:39,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:36:39,995 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:39,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:39,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1813378873, now seen corresponding path program 1 times [2022-01-11 05:36:39,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:39,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591788675] [2022-01-11 05:36:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:39,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:40,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:40,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591788675] [2022-01-11 05:36:40,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591788675] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:40,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:40,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:36:40,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821712829] [2022-01-11 05:36:40,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:40,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:36:40,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:40,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:36:40,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:36:40,104 INFO L87 Difference]: Start difference. First operand 18073 states and 33809 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:41,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:41,173 INFO L93 Difference]: Finished difference Result 36118 states and 67582 transitions. [2022-01-11 05:36:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:36:41,174 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-01-11 05:36:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:41,206 INFO L225 Difference]: With dead ends: 36118 [2022-01-11 05:36:41,209 INFO L226 Difference]: Without dead ends: 18073 [2022-01-11 05:36:41,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:36:41,225 INFO L933 BasicCegarLoop]: 33783 mSDtfsCounter, 101355 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101355 SdHoareTripleChecker+Valid, 33826 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:41,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101355 Valid, 33826 Invalid, 50 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:41,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18073 states. [2022-01-11 05:36:41,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18073 to 18073. [2022-01-11 05:36:41,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18073 states, 18063 states have (on average 1.8716160106294635) internal successors, (33807), 18072 states have internal predecessors, (33807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:41,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18073 states to 18073 states and 33807 transitions. [2022-01-11 05:36:41,798 INFO L78 Accepts]: Start accepts. Automaton has 18073 states and 33807 transitions. Word has length 41 [2022-01-11 05:36:41,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:41,798 INFO L470 AbstractCegarLoop]: Abstraction has 18073 states and 33807 transitions. [2022-01-11 05:36:41,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:41,799 INFO L276 IsEmpty]: Start isEmpty. Operand 18073 states and 33807 transitions. [2022-01-11 05:36:41,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 05:36:41,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:41,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:41,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:36:41,800 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:41,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:41,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1321397883, now seen corresponding path program 1 times [2022-01-11 05:36:41,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:41,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053745070] [2022-01-11 05:36:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:41,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:41,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:41,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053745070] [2022-01-11 05:36:41,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053745070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:41,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:41,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:36:41,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243378677] [2022-01-11 05:36:41,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:41,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:36:41,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:41,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:36:41,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:41,877 INFO L87 Difference]: Start difference. First operand 18073 states and 33807 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:50,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:50,378 INFO L93 Difference]: Finished difference Result 149992 states and 280571 transitions. [2022-01-11 05:36:50,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:36:50,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-11 05:36:50,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:50,734 INFO L225 Difference]: With dead ends: 149992 [2022-01-11 05:36:50,735 INFO L226 Difference]: Without dead ends: 132033 [2022-01-11 05:36:50,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:36:50,790 INFO L933 BasicCegarLoop]: 70063 mSDtfsCounter, 227320 mSDsluCounter, 194960 mSDsCounter, 0 mSdLazyCounter, 3047 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227320 SdHoareTripleChecker+Valid, 265023 SdHoareTripleChecker+Invalid, 3927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 3047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:50,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227320 Valid, 265023 Invalid, 3927 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [880 Valid, 3047 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-01-11 05:36:50,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132033 states. [2022-01-11 05:36:52,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132033 to 33598. [2022-01-11 05:36:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33598 states, 33588 states have (on average 1.8677801595808026) internal successors, (62735), 33597 states have internal predecessors, (62735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:53,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33598 states to 33598 states and 62735 transitions. [2022-01-11 05:36:53,043 INFO L78 Accepts]: Start accepts. Automaton has 33598 states and 62735 transitions. Word has length 42 [2022-01-11 05:36:53,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:53,045 INFO L470 AbstractCegarLoop]: Abstraction has 33598 states and 62735 transitions. [2022-01-11 05:36:53,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:53,045 INFO L276 IsEmpty]: Start isEmpty. Operand 33598 states and 62735 transitions. [2022-01-11 05:36:53,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 05:36:53,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:53,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:36:53,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:36:53,046 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:53,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:53,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1110042060, now seen corresponding path program 1 times [2022-01-11 05:36:53,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:53,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323418225] [2022-01-11 05:36:53,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:53,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:53,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:53,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:53,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323418225] [2022-01-11 05:36:53,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323418225] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:53,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:53,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:53,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996480255] [2022-01-11 05:36:53,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:53,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:53,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:53,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:53,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:53,089 INFO L87 Difference]: Start difference. First operand 33598 states and 62735 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:55,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:55,562 INFO L93 Difference]: Finished difference Result 95158 states and 177763 transitions. [2022-01-11 05:36:55,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:36:55,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2022-01-11 05:36:55,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:55,691 INFO L225 Difference]: With dead ends: 95158 [2022-01-11 05:36:55,691 INFO L226 Difference]: Without dead ends: 66340 [2022-01-11 05:36:55,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:55,714 INFO L933 BasicCegarLoop]: 33921 mSDtfsCounter, 32932 mSDsluCounter, 33683 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32932 SdHoareTripleChecker+Valid, 67604 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:55,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32932 Valid, 67604 Invalid, 98 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:36:55,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66340 states.