/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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:35:39,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:35:39,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:35:39,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:35:39,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:35:39,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:35:39,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:35:39,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:35:39,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:35:39,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:35:39,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:35:39,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:35:39,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:35:39,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:35:39,322 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:35:39,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:35:39,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:35:39,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:35:39,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:35:39,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:35:39,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:35:39,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:35:39,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:35:39,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:35:39,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:35:39,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:35:39,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:35:39,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:35:39,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:35:39,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:35:39,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:35:39,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:35:39,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:35:39,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:35:39,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:35:39,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:35:39,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:35:39,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:35:39,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:35:39,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:35:39,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:35:39,347 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 05:35:39,367 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:35:39,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:35:39,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:35:39,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:35:39,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:35:39,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:35:39,369 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:35:39,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:35:39,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:35:39,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:35:39,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:35:39,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:35:39,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:35:39,371 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:35:39,371 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:35:39,371 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:35:39,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:35:39,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:35:39,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:35:39,372 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:35:39,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:35:39,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:35:39,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:35:39,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:35:39,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:35:39,373 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:35:39,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:35:39,373 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:35:39,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:35:39,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:35:39,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:35:39,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:35:39,375 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:35:39,375 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:35:39,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:35:39,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:35:39,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:35:39,595 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:35:39,596 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:35:39,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product28.cil.c [2022-01-11 05:35:39,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcc8f1442/9b98bc0f22a445fd8f30c0f2cfc7fda8/FLAG1e3df525f [2022-01-11 05:35:40,159 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:35:40,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product28.cil.c [2022-01-11 05:35:40,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcc8f1442/9b98bc0f22a445fd8f30c0f2cfc7fda8/FLAG1e3df525f [2022-01-11 05:35:40,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcc8f1442/9b98bc0f22a445fd8f30c0f2cfc7fda8 [2022-01-11 05:35:40,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:35:40,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:35:40,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:35:40,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:35:40,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:35:40,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:35:40" (1/1) ... [2022-01-11 05:35:40,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e84495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:40, skipping insertion in model container [2022-01-11 05:35:40,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:35:40" (1/1) ... [2022-01-11 05:35:40,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:35:40,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:35:41,227 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_product28.cil.c[73221,73234] [2022-01-11 05:35:41,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:41,242 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:35:41,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:35:41,344 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_product28.cil.c[73221,73234] [2022-01-11 05:35:41,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:41,355 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:35:41,470 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_product28.cil.c[73221,73234] [2022-01-11 05:35:41,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:35:41,501 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:35:41,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41 WrapperNode [2022-01-11 05:35:41,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:35:41,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:35:41,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:35:41,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:35:41,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:41,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,120 INFO L137 Inliner]: procedures = 97, calls = 354, calls flagged for inlining = 206, calls inlined = 1508, statements flattened = 45877 [2022-01-11 05:35:42,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:35:42,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:35:42,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:35:42,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:35:42,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:42,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:43,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:35:43,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:35:43,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:35:43,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:35:43,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (1/1) ... [2022-01-11 05:35:43,121 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:35:43,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:35:43,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:35:43,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:35:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:35:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:35:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:35:43,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:35:43,414 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:35:43,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:35:58,236 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:35:58,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:35:58,325 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:35:58,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:58 BoogieIcfgContainer [2022-01-11 05:35:58,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:35:58,339 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:35:58,339 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:35:58,341 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:35:58,343 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:58" (1/1) ... [2022-01-11 05:36:01,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:36:01 BasicIcfg [2022-01-11 05:36:01,022 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:36:01,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:36:01,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:36:01,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:36:01,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:35:40" (1/4) ... [2022-01-11 05:36:01,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629dfe55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:36:01, skipping insertion in model container [2022-01-11 05:36:01,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:35:41" (2/4) ... [2022-01-11 05:36:01,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629dfe55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:36:01, skipping insertion in model container [2022-01-11 05:36:01,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:35:58" (3/4) ... [2022-01-11 05:36:01,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629dfe55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:36:01, skipping insertion in model container [2022-01-11 05:36:01,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:36:01" (4/4) ... [2022-01-11 05:36:01,029 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product28.cil.cTransformedIcfg [2022-01-11 05:36:01,034 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:36:01,034 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:36:01,124 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:36:01,132 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 05:36:01,132 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:36:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 12788 states, 12777 states have (on average 1.865461375909838) internal successors, (23835), 12787 states have internal predecessors, (23835), 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 05:36:01,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 05:36:01,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:01,341 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 05:36:01,342 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 05:36:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:01,346 INFO L85 PathProgramCache]: Analyzing trace with hash -538108671, now seen corresponding path program 1 times [2022-01-11 05:36:01,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:01,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585948005] [2022-01-11 05:36:01,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:01,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:01,798 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 05:36:01,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:01,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585948005] [2022-01-11 05:36:01,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585948005] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:01,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:01,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:01,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34822045] [2022-01-11 05:36:01,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:01,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:01,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:01,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:01,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:01,868 INFO L87 Difference]: Start difference. First operand has 12788 states, 12777 states have (on average 1.865461375909838) internal successors, (23835), 12787 states have internal predecessors, (23835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:03,012 INFO L93 Difference]: Finished difference Result 35258 states and 65760 transitions. [2022-01-11 05:36:03,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:36:03,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-01-11 05:36:03,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:03,162 INFO L225 Difference]: With dead ends: 35258 [2022-01-11 05:36:03,162 INFO L226 Difference]: Without dead ends: 25027 [2022-01-11 05:36:03,191 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 05:36:03,194 INFO L933 BasicCegarLoop]: 28541 mSDtfsCounter, 22896 mSDsluCounter, 23717 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22896 SdHoareTripleChecker+Valid, 52258 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:03,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22896 Valid, 52258 Invalid, 98 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:36:03,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25027 states. [2022-01-11 05:36:04,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25027 to 24916. [2022-01-11 05:36:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24916 states, 24906 states have (on average 1.866538183570224) internal successors, (46488), 24915 states have internal predecessors, (46488), 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 05:36:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24916 states to 24916 states and 46488 transitions. [2022-01-11 05:36:04,325 INFO L78 Accepts]: Start accepts. Automaton has 24916 states and 46488 transitions. Word has length 34 [2022-01-11 05:36:04,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:04,326 INFO L470 AbstractCegarLoop]: Abstraction has 24916 states and 46488 transitions. [2022-01-11 05:36:04,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:04,327 INFO L276 IsEmpty]: Start isEmpty. Operand 24916 states and 46488 transitions. [2022-01-11 05:36:04,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-11 05:36:04,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:04,334 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 05:36:04,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:36:04,334 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 05:36:04,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:04,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1325418682, now seen corresponding path program 1 times [2022-01-11 05:36:04,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:04,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280889355] [2022-01-11 05:36:04,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:04,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:04,466 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 05:36:04,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:04,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280889355] [2022-01-11 05:36:04,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280889355] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:04,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:04,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:36:04,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478934130] [2022-01-11 05:36:04,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:04,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:36:04,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:04,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:36:04,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:36:04,469 INFO L87 Difference]: Start difference. First operand 24916 states and 46488 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:06,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:06,516 INFO L93 Difference]: Finished difference Result 99483 states and 185618 transitions. [2022-01-11 05:36:06,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:36:06,516 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 05:36:06,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:06,821 INFO L225 Difference]: With dead ends: 99483 [2022-01-11 05:36:06,821 INFO L226 Difference]: Without dead ends: 74594 [2022-01-11 05:36:06,899 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 05:36:06,900 INFO L933 BasicCegarLoop]: 47427 mSDtfsCounter, 70993 mSDsluCounter, 71170 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70993 SdHoareTripleChecker+Valid, 118597 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:06,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70993 Valid, 118597 Invalid, 77 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:36:06,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74594 states. [2022-01-11 05:36:08,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74594 to 24926. [2022-01-11 05:36:08,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24926 states, 24916 states have (on average 1.8661903997431368) internal successors, (46498), 24925 states have internal predecessors, (46498), 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 05:36:08,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24926 states to 24926 states and 46498 transitions. [2022-01-11 05:36:08,323 INFO L78 Accepts]: Start accepts. Automaton has 24926 states and 46498 transitions. Word has length 34 [2022-01-11 05:36:08,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:08,324 INFO L470 AbstractCegarLoop]: Abstraction has 24926 states and 46498 transitions. [2022-01-11 05:36:08,325 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 05:36:08,328 INFO L276 IsEmpty]: Start isEmpty. Operand 24926 states and 46498 transitions. [2022-01-11 05:36:08,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-11 05:36:08,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:08,335 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 05:36:08,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:36:08,335 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 05:36:08,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:08,336 INFO L85 PathProgramCache]: Analyzing trace with hash -488663073, now seen corresponding path program 1 times [2022-01-11 05:36:08,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:08,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209365838] [2022-01-11 05:36:08,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:08,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:08,416 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 05:36:08,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:08,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209365838] [2022-01-11 05:36:08,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209365838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:08,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:08,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:36:08,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888610651] [2022-01-11 05:36:08,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:08,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:36:08,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:08,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:36:08,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:36:08,420 INFO L87 Difference]: Start difference. First operand 24926 states and 46498 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 05:36:09,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:09,363 INFO L93 Difference]: Finished difference Result 49769 states and 92846 transitions. [2022-01-11 05:36:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:36:09,364 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 05:36:09,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:09,439 INFO L225 Difference]: With dead ends: 49769 [2022-01-11 05:36:09,440 INFO L226 Difference]: Without dead ends: 24858 [2022-01-11 05:36:09,474 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 05:36:09,478 INFO L933 BasicCegarLoop]: 23675 mSDtfsCounter, 23667 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23667 SdHoareTripleChecker+Valid, 23683 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 05:36:09,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23667 Valid, 23683 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:09,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-11 05:36:10,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-11 05:36:10,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.865824211204121) internal successors, (46362), 24857 states have internal predecessors, (46362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46362 transitions. [2022-01-11 05:36:10,251 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46362 transitions. Word has length 35 [2022-01-11 05:36:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:10,251 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46362 transitions. [2022-01-11 05:36:10,251 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 05:36:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46362 transitions. [2022-01-11 05:36:10,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 05:36:10,254 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:10,254 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 05:36:10,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:36:10,255 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 05:36:10,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:10,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2047755655, now seen corresponding path program 1 times [2022-01-11 05:36:10,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:10,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255136876] [2022-01-11 05:36:10,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:10,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:10,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:10,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:10,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255136876] [2022-01-11 05:36:10,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255136876] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:10,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:10,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:36:10,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530321344] [2022-01-11 05:36:10,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:10,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:36:10,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:10,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:36:10,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:36:10,405 INFO L87 Difference]: Start difference. First operand 24858 states and 46362 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 05:36:11,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:11,623 INFO L93 Difference]: Finished difference Result 49694 states and 92695 transitions. [2022-01-11 05:36:11,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:36:11,623 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 05:36:11,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:11,707 INFO L225 Difference]: With dead ends: 49694 [2022-01-11 05:36:11,708 INFO L226 Difference]: Without dead ends: 24858 [2022-01-11 05:36:11,745 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 05:36:11,753 INFO L933 BasicCegarLoop]: 23661 mSDtfsCounter, 47323 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47323 SdHoareTripleChecker+Valid, 23709 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:11,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47323 Valid, 23709 Invalid, 40 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:11,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-11 05:36:12,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-11 05:36:12,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8657437218287185) internal successors, (46360), 24857 states have internal predecessors, (46360), 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 05:36:12,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46360 transitions. [2022-01-11 05:36:12,636 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46360 transitions. Word has length 37 [2022-01-11 05:36:12,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:12,636 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46360 transitions. [2022-01-11 05:36:12,636 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 05:36:12,637 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46360 transitions. [2022-01-11 05:36:12,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-11 05:36:12,637 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:12,638 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 05:36:12,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:36:12,638 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 05:36:12,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:12,638 INFO L85 PathProgramCache]: Analyzing trace with hash 851786399, now seen corresponding path program 1 times [2022-01-11 05:36:12,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:12,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594596672] [2022-01-11 05:36:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:12,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:12,722 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 05:36:12,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:12,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594596672] [2022-01-11 05:36:12,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594596672] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:12,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:12,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:36:12,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896371926] [2022-01-11 05:36:12,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:12,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:36:12,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:12,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:36:12,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:12,724 INFO L87 Difference]: Start difference. First operand 24858 states and 46360 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 05:36:13,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:13,662 INFO L93 Difference]: Finished difference Result 49688 states and 92681 transitions. [2022-01-11 05:36:13,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:36:13,663 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 05:36:13,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:13,730 INFO L225 Difference]: With dead ends: 49688 [2022-01-11 05:36:13,730 INFO L226 Difference]: Without dead ends: 24858 [2022-01-11 05:36:13,763 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 05:36:13,764 INFO L933 BasicCegarLoop]: 23643 mSDtfsCounter, 70956 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70956 SdHoareTripleChecker+Valid, 23676 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:13,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70956 Valid, 23676 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:13,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-11 05:36:14,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-11 05:36:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8656632324533162) internal successors, (46358), 24857 states have internal predecessors, (46358), 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 05:36:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46358 transitions. [2022-01-11 05:36:14,641 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46358 transitions. Word has length 38 [2022-01-11 05:36:14,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:14,642 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46358 transitions. [2022-01-11 05:36:14,642 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 05:36:14,642 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46358 transitions. [2022-01-11 05:36:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 05:36:14,643 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:14,643 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 05:36:14,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:36:14,643 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 05:36:14,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1993223602, now seen corresponding path program 1 times [2022-01-11 05:36:14,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:14,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066069935] [2022-01-11 05:36:14,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:14,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:14,718 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 05:36:14,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:14,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066069935] [2022-01-11 05:36:14,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066069935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:14,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:14,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:36:14,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838410832] [2022-01-11 05:36:14,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:14,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:36:14,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:14,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:36:14,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:36:14,721 INFO L87 Difference]: Start difference. First operand 24858 states and 46358 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 05:36:15,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:15,621 INFO L93 Difference]: Finished difference Result 49688 states and 92678 transitions. [2022-01-11 05:36:15,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:36:15,622 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 05:36:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:15,686 INFO L225 Difference]: With dead ends: 49688 [2022-01-11 05:36:15,686 INFO L226 Difference]: Without dead ends: 24858 [2022-01-11 05:36:15,716 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 05:36:15,717 INFO L933 BasicCegarLoop]: 23643 mSDtfsCounter, 70947 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70947 SdHoareTripleChecker+Valid, 23686 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:15,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70947 Valid, 23686 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:36:15,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-11 05:36:16,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-11 05:36:16,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8655827430779137) internal successors, (46356), 24857 states have internal predecessors, (46356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46356 transitions. [2022-01-11 05:36:16,489 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46356 transitions. Word has length 39 [2022-01-11 05:36:16,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:16,489 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46356 transitions. [2022-01-11 05:36:16,489 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 05:36:16,489 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46356 transitions. [2022-01-11 05:36:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 05:36:16,490 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:16,490 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 05:36:16,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:36:16,490 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 05:36:16,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:16,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1998290898, now seen corresponding path program 1 times [2022-01-11 05:36:16,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:16,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468833347] [2022-01-11 05:36:16,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:16,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:16,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:16,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:16,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468833347] [2022-01-11 05:36:16,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468833347] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:16,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:16,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:36:16,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816081901] [2022-01-11 05:36:16,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:16,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:36:16,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:16,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:36:16,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:36:16,594 INFO L87 Difference]: Start difference. First operand 24858 states and 46356 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 05:36:17,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:17,574 INFO L93 Difference]: Finished difference Result 49688 states and 92675 transitions. [2022-01-11 05:36:17,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:36:17,575 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 05:36:17,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:17,628 INFO L225 Difference]: With dead ends: 49688 [2022-01-11 05:36:17,628 INFO L226 Difference]: Without dead ends: 24858 [2022-01-11 05:36:17,653 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 05:36:17,654 INFO L933 BasicCegarLoop]: 23643 mSDtfsCounter, 70940 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70940 SdHoareTripleChecker+Valid, 23686 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:17,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70940 Valid, 23686 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:17,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-11 05:36:18,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-11 05:36:18,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8655022537025112) internal successors, (46354), 24857 states have internal predecessors, (46354), 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 05:36:18,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46354 transitions. [2022-01-11 05:36:18,449 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46354 transitions. Word has length 40 [2022-01-11 05:36:18,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:18,449 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46354 transitions. [2022-01-11 05:36:18,450 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 05:36:18,450 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46354 transitions. [2022-01-11 05:36:18,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-11 05:36:18,450 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:18,451 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 05:36:18,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:36:18,451 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 05:36:18,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:18,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1135629445, now seen corresponding path program 1 times [2022-01-11 05:36:18,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:18,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492410792] [2022-01-11 05:36:18,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:18,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:18,565 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 05:36:18,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:18,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492410792] [2022-01-11 05:36:18,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492410792] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:18,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:18,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:36:18,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929103513] [2022-01-11 05:36:18,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:18,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:36:18,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:18,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:36:18,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:36:18,568 INFO L87 Difference]: Start difference. First operand 24858 states and 46354 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 05:36:19,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:19,536 INFO L93 Difference]: Finished difference Result 49688 states and 92672 transitions. [2022-01-11 05:36:19,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:36:19,537 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 05:36:19,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:19,585 INFO L225 Difference]: With dead ends: 49688 [2022-01-11 05:36:19,585 INFO L226 Difference]: Without dead ends: 24858 [2022-01-11 05:36:19,616 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 05:36:19,617 INFO L933 BasicCegarLoop]: 23643 mSDtfsCounter, 70933 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70933 SdHoareTripleChecker+Valid, 23696 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 05:36:19,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70933 Valid, 23696 Invalid, 50 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:19,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-11 05:36:20,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-11 05:36:20,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8654217643271087) internal successors, (46352), 24857 states have internal predecessors, (46352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:36:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46352 transitions. [2022-01-11 05:36:20,285 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46352 transitions. Word has length 41 [2022-01-11 05:36:20,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:20,285 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46352 transitions. [2022-01-11 05:36:20,285 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 05:36:20,285 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46352 transitions. [2022-01-11 05:36:20,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 05:36:20,286 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:20,286 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 05:36:20,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:36:20,286 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 05:36:20,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:20,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1265643676, now seen corresponding path program 1 times [2022-01-11 05:36:20,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:20,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200674283] [2022-01-11 05:36:20,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:20,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:20,402 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 05:36:20,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:20,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200674283] [2022-01-11 05:36:20,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200674283] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:20,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:20,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:36:20,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959810229] [2022-01-11 05:36:20,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:20,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:36:20,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:20,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:36:20,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:36:20,404 INFO L87 Difference]: Start difference. First operand 24858 states and 46352 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 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 05:36:21,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:21,329 INFO L93 Difference]: Finished difference Result 49688 states and 92669 transitions. [2022-01-11 05:36:21,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:36:21,330 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 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 05:36:21,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:21,378 INFO L225 Difference]: With dead ends: 49688 [2022-01-11 05:36:21,378 INFO L226 Difference]: Without dead ends: 24858 [2022-01-11 05:36:21,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 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 05:36:21,407 INFO L933 BasicCegarLoop]: 23653 mSDtfsCounter, 70904 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70904 SdHoareTripleChecker+Valid, 23719 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:21,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70904 Valid, 23719 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:36:21,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24858 states. [2022-01-11 05:36:22,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24858 to 24858. [2022-01-11 05:36:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24858 states, 24848 states have (on average 1.8653412749517064) internal successors, (46350), 24857 states have internal predecessors, (46350), 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 05:36:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24858 states to 24858 states and 46350 transitions. [2022-01-11 05:36:22,125 INFO L78 Accepts]: Start accepts. Automaton has 24858 states and 46350 transitions. Word has length 42 [2022-01-11 05:36:22,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:36:22,125 INFO L470 AbstractCegarLoop]: Abstraction has 24858 states and 46350 transitions. [2022-01-11 05:36:22,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 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 05:36:22,125 INFO L276 IsEmpty]: Start isEmpty. Operand 24858 states and 46350 transitions. [2022-01-11 05:36:22,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 05:36:22,126 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:36:22,126 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 05:36:22,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:36:22,126 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:36:22,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:36:22,127 INFO L85 PathProgramCache]: Analyzing trace with hash -856819451, now seen corresponding path program 1 times [2022-01-11 05:36:22,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:36:22,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338741257] [2022-01-11 05:36:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:36:22,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:36:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:36:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:36:22,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:36:22,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338741257] [2022-01-11 05:36:22,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338741257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:36:22,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:36:22,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:36:22,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240793937] [2022-01-11 05:36:22,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:36:22,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:36:22,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:36:22,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:36:22,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:36:22,215 INFO L87 Difference]: Start difference. First operand 24858 states and 46350 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 05:36:29,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:36:29,590 INFO L93 Difference]: Finished difference Result 162571 states and 303094 transitions. [2022-01-11 05:36:29,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:36:29,591 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 05:36:29,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:36:30,046 INFO L225 Difference]: With dead ends: 162571 [2022-01-11 05:36:30,046 INFO L226 Difference]: Without dead ends: 139929 [2022-01-11 05:36:30,091 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 05:36:30,092 INFO L933 BasicCegarLoop]: 50173 mSDtfsCounter, 161717 mSDsluCounter, 134504 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 543 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161717 SdHoareTripleChecker+Valid, 184677 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 543 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:36:30,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161717 Valid, 184677 Invalid, 2357 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [543 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-01-11 05:36:30,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139929 states.