/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:03:28,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:03:28,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:03:28,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:03:28,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:03:28,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:03:28,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:03:28,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:03:28,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:03:28,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:03:28,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:03:28,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:03:28,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:03:28,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:03:28,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:03:28,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:03:28,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:03:28,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:03:28,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:03:28,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:03:28,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:03:28,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:03:28,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:03:28,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:03:28,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:03:28,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:03:28,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:03:28,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:03:28,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:03:28,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:03:28,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:03:28,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:03:28,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:03:28,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:03:28,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:03:28,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:03:28,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:03:28,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:03:28,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:03:28,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:03:28,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:03:28,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 00:03:28,154 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:03:28,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:03:28,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:03:28,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:03:28,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:03:28,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:03:28,160 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:03:28,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:03:28,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:03:28,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:03:28,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:03:28,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:03:28,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:03:28,162 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:03:28,162 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:03:28,162 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:03:28,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:03:28,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:03:28,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:03:28,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:03:28,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:03:28,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:28,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:03:28,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:03:28,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:03:28,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:03:28,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:03:28,164 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:03:28,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:03:28,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:03:28,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:03:28,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:03:28,166 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:03:28,166 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:03:28,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:03:28,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:03:28,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:03:28,427 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:03:28,427 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:03:28,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2022-01-11 00:03:28,504 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908e05637/737941689ca941c49e51f93c84c954d0/FLAG7d55af54f [2022-01-11 00:03:28,948 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:03:28,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2022-01-11 00:03:28,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908e05637/737941689ca941c49e51f93c84c954d0/FLAG7d55af54f [2022-01-11 00:03:28,979 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908e05637/737941689ca941c49e51f93c84c954d0 [2022-01-11 00:03:28,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:03:28,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:03:28,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:28,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:03:28,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:03:28,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:28" (1/1) ... [2022-01-11 00:03:28,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264e2a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:28, skipping insertion in model container [2022-01-11 00:03:28,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:28" (1/1) ... [2022-01-11 00:03:28,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:03:29,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:29,319 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/minepump_spec1_product56.cil.c[16679,16692] [2022-01-11 00:03:29,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:29,350 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 00:03:29,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:29,401 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/minepump_spec1_product56.cil.c[16679,16692] [2022-01-11 00:03:29,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:29,431 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:03:29,503 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/minepump_spec1_product56.cil.c[16679,16692] [2022-01-11 00:03:29,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:29,551 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:03:29,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29 WrapperNode [2022-01-11 00:03:29,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:29,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:29,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:03:29,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:03:29,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,642 INFO L137 Inliner]: procedures = 60, calls = 161, calls flagged for inlining = 58, calls inlined = 140, statements flattened = 1011 [2022-01-11 00:03:29,643 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:29,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:03:29,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:03:29,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:03:29,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:03:29,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:03:29,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:03:29,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:03:29,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (1/1) ... [2022-01-11 00:03:29,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:29,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:03:29,769 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 00:03:29,795 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 00:03:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:03:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:03:29,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:03:29,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:03:29,911 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:03:29,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:03:30,550 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:03:30,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:03:30,562 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 00:03:30,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:30 BoogieIcfgContainer [2022-01-11 00:03:30,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:03:30,565 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:03:30,565 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:03:30,567 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:03:30,569 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:30" (1/1) ... [2022-01-11 00:03:30,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:30 BasicIcfg [2022-01-11 00:03:30,720 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:03:30,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:03:30,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:03:30,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:03:30,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:03:28" (1/4) ... [2022-01-11 00:03:30,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25601119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:30, skipping insertion in model container [2022-01-11 00:03:30,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:29" (2/4) ... [2022-01-11 00:03:30,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25601119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:30, skipping insertion in model container [2022-01-11 00:03:30,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:30" (3/4) ... [2022-01-11 00:03:30,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25601119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:30, skipping insertion in model container [2022-01-11 00:03:30,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:30" (4/4) ... [2022-01-11 00:03:30,726 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.cTransformedIcfg [2022-01-11 00:03:30,730 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:03:30,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 00:03:30,779 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:03:30,785 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 00:03:30,785 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 00:03:30,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 278 states, 274 states have (on average 1.3795620437956204) internal successors, (378), 277 states have internal predecessors, (378), 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 00:03:30,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 00:03:30,805 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:30,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:30,806 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:30,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:30,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1575052257, now seen corresponding path program 1 times [2022-01-11 00:03:30,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:30,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296081676] [2022-01-11 00:03:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:30,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:31,027 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 00:03:31,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:31,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296081676] [2022-01-11 00:03:31,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296081676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:31,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:31,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:31,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789495634] [2022-01-11 00:03:31,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:31,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 00:03:31,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:31,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 00:03:31,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:03:31,072 INFO L87 Difference]: Start difference. First operand has 278 states, 274 states have (on average 1.3795620437956204) internal successors, (378), 277 states have internal predecessors, (378), 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 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 00:03:31,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:31,129 INFO L93 Difference]: Finished difference Result 546 states and 745 transitions. [2022-01-11 00:03:31,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 00:03:31,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-01-11 00:03:31,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:31,141 INFO L225 Difference]: With dead ends: 546 [2022-01-11 00:03:31,141 INFO L226 Difference]: Without dead ends: 268 [2022-01-11 00:03:31,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:03:31,150 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:31,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:31,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-01-11 00:03:31,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2022-01-11 00:03:31,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 265 states have (on average 1.3584905660377358) internal successors, (360), 267 states have internal predecessors, (360), 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 00:03:31,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 360 transitions. [2022-01-11 00:03:31,200 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 360 transitions. Word has length 17 [2022-01-11 00:03:31,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:31,201 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 360 transitions. [2022-01-11 00:03:31,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 00:03:31,201 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 360 transitions. [2022-01-11 00:03:31,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 00:03:31,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:31,203 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:31,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:03:31,204 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:31,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:31,205 INFO L85 PathProgramCache]: Analyzing trace with hash 975023404, now seen corresponding path program 1 times [2022-01-11 00:03:31,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:31,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281577822] [2022-01-11 00:03:31,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:31,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:31,298 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 00:03:31,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:31,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281577822] [2022-01-11 00:03:31,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281577822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:31,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:31,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:31,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437295443] [2022-01-11 00:03:31,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:31,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:31,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:31,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:31,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:31,302 INFO L87 Difference]: Start difference. First operand 268 states and 360 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 00:03:31,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:31,377 INFO L93 Difference]: Finished difference Result 590 states and 794 transitions. [2022-01-11 00:03:31,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:31,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2022-01-11 00:03:31,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:31,383 INFO L225 Difference]: With dead ends: 590 [2022-01-11 00:03:31,384 INFO L226 Difference]: Without dead ends: 329 [2022-01-11 00:03:31,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:31,386 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 343 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:31,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 441 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:31,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-01-11 00:03:31,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 320. [2022-01-11 00:03:31,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 317 states have (on average 1.359621451104101) internal successors, (431), 319 states have internal predecessors, (431), 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 00:03:31,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 431 transitions. [2022-01-11 00:03:31,413 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 431 transitions. Word has length 18 [2022-01-11 00:03:31,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:31,413 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 431 transitions. [2022-01-11 00:03:31,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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 00:03:31,414 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 431 transitions. [2022-01-11 00:03:31,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-11 00:03:31,415 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:31,415 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] [2022-01-11 00:03:31,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:03:31,415 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:31,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:31,416 INFO L85 PathProgramCache]: Analyzing trace with hash -291100538, now seen corresponding path program 1 times [2022-01-11 00:03:31,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:31,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674912323] [2022-01-11 00:03:31,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:31,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:31,468 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 00:03:31,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:31,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674912323] [2022-01-11 00:03:31,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674912323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:31,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:31,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:31,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152998628] [2022-01-11 00:03:31,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:31,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:31,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:31,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:31,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:31,471 INFO L87 Difference]: Start difference. First operand 320 states and 431 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 00:03:31,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:31,612 INFO L93 Difference]: Finished difference Result 645 states and 863 transitions. [2022-01-11 00:03:31,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:31,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2022-01-11 00:03:31,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:31,615 INFO L225 Difference]: With dead ends: 645 [2022-01-11 00:03:31,615 INFO L226 Difference]: Without dead ends: 332 [2022-01-11 00:03:31,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:31,623 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 181 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:31,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 409 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:31,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-01-11 00:03:31,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 326. [2022-01-11 00:03:31,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 323 states have (on average 1.2910216718266254) internal successors, (417), 325 states have internal predecessors, (417), 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 00:03:31,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 417 transitions. [2022-01-11 00:03:31,651 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 417 transitions. Word has length 24 [2022-01-11 00:03:31,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:31,651 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 417 transitions. [2022-01-11 00:03:31,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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 00:03:31,652 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 417 transitions. [2022-01-11 00:03:31,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-11 00:03:31,653 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:31,653 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] [2022-01-11 00:03:31,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:03:31,654 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:31,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:31,655 INFO L85 PathProgramCache]: Analyzing trace with hash 714291196, now seen corresponding path program 1 times [2022-01-11 00:03:31,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:31,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134544793] [2022-01-11 00:03:31,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:31,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:31,752 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 00:03:31,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:31,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134544793] [2022-01-11 00:03:31,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134544793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:31,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:31,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:31,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6026252] [2022-01-11 00:03:31,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:31,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:31,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:31,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:31,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:31,757 INFO L87 Difference]: Start difference. First operand 326 states and 417 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 00:03:32,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:32,037 INFO L93 Difference]: Finished difference Result 970 states and 1229 transitions. [2022-01-11 00:03:32,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:03:32,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2022-01-11 00:03:32,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:32,041 INFO L225 Difference]: With dead ends: 970 [2022-01-11 00:03:32,041 INFO L226 Difference]: Without dead ends: 964 [2022-01-11 00:03:32,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 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 00:03:32,051 INFO L933 BasicCegarLoop]: 711 mSDtfsCounter, 904 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:32,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [904 Valid, 2084 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 00:03:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2022-01-11 00:03:32,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 326. [2022-01-11 00:03:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 323 states have (on average 1.2724458204334366) internal successors, (411), 325 states have internal predecessors, (411), 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 00:03:32,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 411 transitions. [2022-01-11 00:03:32,088 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 411 transitions. Word has length 28 [2022-01-11 00:03:32,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:32,088 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 411 transitions. [2022-01-11 00:03:32,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 00:03:32,089 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 411 transitions. [2022-01-11 00:03:32,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-11 00:03:32,093 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:32,093 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] [2022-01-11 00:03:32,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:03:32,094 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:32,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:32,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1217974196, now seen corresponding path program 1 times [2022-01-11 00:03:32,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:32,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483436956] [2022-01-11 00:03:32,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:32,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:32,203 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 00:03:32,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:32,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483436956] [2022-01-11 00:03:32,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483436956] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:32,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:32,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:03:32,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865406408] [2022-01-11 00:03:32,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:32,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:32,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:32,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:32,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:32,206 INFO L87 Difference]: Start difference. First operand 326 states and 411 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 00:03:32,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:32,382 INFO L93 Difference]: Finished difference Result 912 states and 1137 transitions. [2022-01-11 00:03:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:03:32,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2022-01-11 00:03:32,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:32,385 INFO L225 Difference]: With dead ends: 912 [2022-01-11 00:03:32,386 INFO L226 Difference]: Without dead ends: 593 [2022-01-11 00:03:32,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 00:03:32,387 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 432 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:32,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1198 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:32,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-01-11 00:03:32,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 353. [2022-01-11 00:03:32,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 350 states have (on average 1.2514285714285713) internal successors, (438), 352 states have internal predecessors, (438), 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 00:03:32,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 438 transitions. [2022-01-11 00:03:32,421 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 438 transitions. Word has length 31 [2022-01-11 00:03:32,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:32,425 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 438 transitions. [2022-01-11 00:03:32,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 00:03:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 438 transitions. [2022-01-11 00:03:32,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-11 00:03:32,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:32,428 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] [2022-01-11 00:03:32,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:03:32,428 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:32,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:32,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1723532821, now seen corresponding path program 1 times [2022-01-11 00:03:32,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:32,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76212346] [2022-01-11 00:03:32,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:32,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:32,498 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 00:03:32,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:32,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76212346] [2022-01-11 00:03:32,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76212346] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:32,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:32,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:32,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569560295] [2022-01-11 00:03:32,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:32,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:03:32,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:32,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:03:32,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:03:32,500 INFO L87 Difference]: Start difference. First operand 353 states and 438 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 00:03:32,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:32,641 INFO L93 Difference]: Finished difference Result 876 states and 1078 transitions. [2022-01-11 00:03:32,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 00:03:32,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-01-11 00:03:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:32,644 INFO L225 Difference]: With dead ends: 876 [2022-01-11 00:03:32,644 INFO L226 Difference]: Without dead ends: 530 [2022-01-11 00:03:32,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 00:03:32,646 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 273 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:32,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 820 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:32,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-01-11 00:03:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 371. [2022-01-11 00:03:32,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 368 states have (on average 1.2391304347826086) internal successors, (456), 370 states have internal predecessors, (456), 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 00:03:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 456 transitions. [2022-01-11 00:03:32,714 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 456 transitions. Word has length 31 [2022-01-11 00:03:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:32,715 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 456 transitions. [2022-01-11 00:03:32,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 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 00:03:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 456 transitions. [2022-01-11 00:03:32,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-01-11 00:03:32,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:32,718 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] [2022-01-11 00:03:32,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:03:32,718 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:32,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:32,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2060900298, now seen corresponding path program 1 times [2022-01-11 00:03:32,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:32,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571924187] [2022-01-11 00:03:32,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:32,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:32,790 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 00:03:32,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:32,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571924187] [2022-01-11 00:03:32,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571924187] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:32,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:32,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:32,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025206979] [2022-01-11 00:03:32,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:32,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:32,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:32,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:32,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:32,792 INFO L87 Difference]: Start difference. First operand 371 states and 456 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 00:03:33,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:33,005 INFO L93 Difference]: Finished difference Result 1648 states and 2040 transitions. [2022-01-11 00:03:33,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 00:03:33,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2022-01-11 00:03:33,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:33,011 INFO L225 Difference]: With dead ends: 1648 [2022-01-11 00:03:33,011 INFO L226 Difference]: Without dead ends: 1058 [2022-01-11 00:03:33,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 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 00:03:33,013 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 1105 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:33,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 1329 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:33,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2022-01-11 00:03:33,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 512. [2022-01-11 00:03:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 509 states have (on average 1.2396856581532416) internal successors, (631), 511 states have internal predecessors, (631), 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 00:03:33,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 631 transitions. [2022-01-11 00:03:33,072 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 631 transitions. Word has length 31 [2022-01-11 00:03:33,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:33,073 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 631 transitions. [2022-01-11 00:03:33,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 00:03:33,073 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 631 transitions. [2022-01-11 00:03:33,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-11 00:03:33,074 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:33,074 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 00:03:33,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:03:33,074 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:33,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:33,075 INFO L85 PathProgramCache]: Analyzing trace with hash 254511795, now seen corresponding path program 1 times [2022-01-11 00:03:33,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:33,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580096339] [2022-01-11 00:03:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:33,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:33,132 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 00:03:33,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:33,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580096339] [2022-01-11 00:03:33,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580096339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:33,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:33,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:33,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276855522] [2022-01-11 00:03:33,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:33,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:33,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:33,134 INFO L87 Difference]: Start difference. First operand 512 states and 631 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 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 00:03:33,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:33,278 INFO L93 Difference]: Finished difference Result 1207 states and 1483 transitions. [2022-01-11 00:03:33,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:33,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 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 00:03:33,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:33,282 INFO L225 Difference]: With dead ends: 1207 [2022-01-11 00:03:33,282 INFO L226 Difference]: Without dead ends: 630 [2022-01-11 00:03:33,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:33,298 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 82 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:33,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 512 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:33,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2022-01-11 00:03:33,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 630. [2022-01-11 00:03:33,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 627 states have (on average 1.229665071770335) internal successors, (771), 629 states have internal predecessors, (771), 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 00:03:33,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 771 transitions. [2022-01-11 00:03:33,361 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 771 transitions. Word has length 40 [2022-01-11 00:03:33,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:33,361 INFO L470 AbstractCegarLoop]: Abstraction has 630 states and 771 transitions. [2022-01-11 00:03:33,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 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 00:03:33,361 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 771 transitions. [2022-01-11 00:03:33,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-11 00:03:33,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:33,362 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 00:03:33,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 00:03:33,362 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:33,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:33,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1648698861, now seen corresponding path program 1 times [2022-01-11 00:03:33,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:33,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099931392] [2022-01-11 00:03:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:33,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:33,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:33,383 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 00:03:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:33,417 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 00:03:33,417 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 00:03:33,418 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-11 00:03:33,419 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-11 00:03:33,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-11 00:03:33,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 00:03:33,422 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:33,425 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 00:03:33,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:33 BasicIcfg [2022-01-11 00:03:33,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 00:03:33,527 INFO L158 Benchmark]: Toolchain (without parser) took 4542.62ms. Allocated memory was 197.1MB in the beginning and 254.8MB in the end (delta: 57.7MB). Free memory was 144.7MB in the beginning and 169.5MB in the end (delta: -24.8MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. [2022-01-11 00:03:33,527 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 197.1MB. Free memory is still 162.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 00:03:33,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.53ms. Allocated memory was 197.1MB in the beginning and 254.8MB in the end (delta: 57.7MB). Free memory was 144.5MB in the beginning and 215.3MB in the end (delta: -70.8MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. [2022-01-11 00:03:33,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.06ms. Allocated memory is still 254.8MB. Free memory was 215.3MB in the beginning and 211.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-11 00:03:33,528 INFO L158 Benchmark]: Boogie Preprocessor took 62.90ms. Allocated memory is still 254.8MB. Free memory was 211.1MB in the beginning and 207.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:33,528 INFO L158 Benchmark]: RCFGBuilder took 856.94ms. Allocated memory is still 254.8MB. Free memory was 207.4MB in the beginning and 175.4MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2022-01-11 00:03:33,528 INFO L158 Benchmark]: IcfgTransformer took 154.84ms. Allocated memory is still 254.8MB. Free memory was 175.4MB in the beginning and 161.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-01-11 00:03:33,529 INFO L158 Benchmark]: TraceAbstraction took 2805.21ms. Allocated memory is still 254.8MB. Free memory was 160.8MB in the beginning and 169.5MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 00:03:33,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 197.1MB. Free memory is still 162.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 566.53ms. Allocated memory was 197.1MB in the beginning and 254.8MB in the end (delta: 57.7MB). Free memory was 144.5MB in the beginning and 215.3MB in the end (delta: -70.8MB). Peak memory consumption was 8.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 89.06ms. Allocated memory is still 254.8MB. Free memory was 215.3MB in the beginning and 211.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 62.90ms. Allocated memory is still 254.8MB. Free memory was 211.1MB in the beginning and 207.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 856.94ms. Allocated memory is still 254.8MB. Free memory was 207.4MB in the beginning and 175.4MB in the end (delta: 32.0MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * IcfgTransformer took 154.84ms. Allocated memory is still 254.8MB. Free memory was 175.4MB in the beginning and 161.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2805.21ms. Allocated memory is still 254.8MB. Free memory was 160.8MB in the beginning and 169.5MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 816]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L821] int cleanupTimeShifts = 4; [L918] int waterLevel = 1; [L919] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L894] int retValue_acc ; [L895] int tmp ; [L899] FCALL select_helpers() [L900] FCALL select_features() [L901] CALL, EXPR valid_product() [L776] int retValue_acc ; [L779] retValue_acc = 1 [L780] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L901] RET, EXPR valid_product() [L901] tmp = valid_product() [L903] COND TRUE \read(tmp) [L905] FCALL setup() [L906] CALL runTest() [L888] CALL test() [L423] int splverifierCounter ; [L424] int tmp ; [L425] int tmp___0 ; [L426] int tmp___1 ; [L427] int tmp___2 ; [L430] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L432] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L434] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L440] tmp = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp) [L444] CALL waterRise() [L936] COND TRUE waterLevel < 2 [L937] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L444] RET waterRise() [L450] tmp___0 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___0) [L454] CALL changeMethaneLevel() [L948] COND FALSE !(\read(methaneLevelCritical)) [L951] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L454] RET changeMethaneLevel() [L460] tmp___2 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___2)) [L468] tmp___1 = __VERIFIER_nondet_int() [L470] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=29, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L479] CALL timeShift() [L508] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L515] COND TRUE \read(systemActive) [L517] CALL processEnvironment() [L589] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L592] COND FALSE !(\read(pumpRunning)) [L607] CALL processEnvironment__wrappee__lowWaterSensor() [L563] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] COND FALSE !(\read(pumpRunning)) [L581] CALL processEnvironment__wrappee__highWaterSensor() [L537] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L540] COND TRUE ! pumpRunning [L542] CALL, EXPR isHighWaterLevel() [L686] int retValue_acc ; [L687] int tmp ; [L688] int tmp___0 ; [L692] CALL, EXPR isHighWaterSensorDry() [L998] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L1001] COND FALSE !(waterLevel < 2) [L1005] retValue_acc = 0 [L1006] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L692] RET, EXPR isHighWaterSensorDry() [L692] tmp = isHighWaterSensorDry() [L694] COND FALSE !(\read(tmp)) [L697] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L699] retValue_acc = tmp___0 [L700] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L542] RET, EXPR isHighWaterLevel() [L542] tmp = isHighWaterLevel() [L544] COND TRUE \read(tmp) [L546] CALL activatePump() [L617] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L546] RET activatePump() [L581] RET processEnvironment__wrappee__highWaterSensor() [L607] RET processEnvironment__wrappee__lowWaterSensor() [L517] RET processEnvironment() [L523] CALL __utac_acc__Specification1_spec__1() [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isMethaneLevelCritical() [L957] int retValue_acc ; [L960] retValue_acc = methaneLevelCritical [L961] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L792] RET, EXPR isMethaneLevelCritical() [L792] tmp = isMethaneLevelCritical() [L794] COND TRUE \read(tmp) [L796] CALL, EXPR isPumpRunning() [L641] int retValue_acc ; [L644] retValue_acc = pumpRunning [L645] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L796] RET, EXPR isPumpRunning() [L796] tmp___0 = isPumpRunning() [L798] COND TRUE \read(tmp___0) [L800] CALL __automaton_fail() [L816] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 816]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 278 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3320 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3320 mSDsluCounter, 7161 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4182 mSDsCounter, 165 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 558 IncrementalHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 165 mSolverCounterUnsat, 2979 mSDtfsCounter, 558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=630occurred in iteration=8, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 1598 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 652 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-11 00:03:33,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...