/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_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:03:16,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:03:16,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:03:16,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:03:16,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:03:16,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:03:16,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:03:16,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:03:16,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:03:16,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:03:16,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:03:16,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:03:16,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:03:16,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:03:16,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:03:16,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:03:16,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:03:16,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:03:16,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:03:16,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:03:16,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:03:16,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:03:16,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:03:16,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:03:16,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:03:16,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:03:16,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:03:16,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:03:16,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:03:17,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:03:17,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:03:17,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:03:17,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:03:17,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:03:17,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:03:17,002 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:03:17,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:03:17,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:03:17,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:03:17,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:03:17,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:03:17,005 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 00:03:17,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:03:17,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:03:17,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:03:17,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:03:17,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:03:17,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:03:17,032 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:03:17,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:03:17,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:03:17,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:03:17,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:03:17,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:03:17,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:03:17,033 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:03:17,033 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:03:17,033 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:03:17,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:03:17,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:03:17,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:03:17,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:03:17,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:03:17,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:17,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:03:17,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:03:17,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:03:17,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:03:17,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:03:17,035 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:03:17,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:03:17,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:03:17,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:03:17,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:03:17,036 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:03:17,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:03:17,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:03:17,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:03:17,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:03:17,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:03:17,298 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:03:17,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2022-01-11 00:03:17,349 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85289b79e/9b879d4ed308478b8eae08c4f294dcc5/FLAG094233eae [2022-01-11 00:03:17,833 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:03:17,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2022-01-11 00:03:17,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85289b79e/9b879d4ed308478b8eae08c4f294dcc5/FLAG094233eae [2022-01-11 00:03:18,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85289b79e/9b879d4ed308478b8eae08c4f294dcc5 [2022-01-11 00:03:18,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:03:18,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:03:18,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:18,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:03:18,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:03:18,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:18,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55901ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18, skipping insertion in model container [2022-01-11 00:03:18,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:18,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:03:18,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:18,632 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_product39.cil.c[11731,11744] [2022-01-11 00:03:18,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:18,729 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 00:03:18,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:03:18,786 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_product39.cil.c[11731,11744] [2022-01-11 00:03:18,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:18,821 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:03:18,858 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_product39.cil.c[11731,11744] [2022-01-11 00:03:18,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:03:18,898 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:03:18,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18 WrapperNode [2022-01-11 00:03:18,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:03:18,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:18,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:03:18,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:03:18,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:18,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:18,966 INFO L137 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 52, calls inlined = 79, statements flattened = 588 [2022-01-11 00:03:18,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:03:18,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:03:18,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:03:18,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:03:18,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:18,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:18,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:18,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:18,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:19,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:19,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:19,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:03:19,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:03:19,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:03:19,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:03:19,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (1/1) ... [2022-01-11 00:03:19,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:03:19,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:03:19,060 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 00:03:19,067 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 00:03:19,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:03:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:03:19,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:03:19,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:03:19,216 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:03:19,218 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:03:19,582 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:03:19,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:03:19,588 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-11 00:03:19,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:19 BoogieIcfgContainer [2022-01-11 00:03:19,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:03:19,590 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:03:19,590 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:03:19,591 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:03:19,593 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:19" (1/1) ... [2022-01-11 00:03:19,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:19 BasicIcfg [2022-01-11 00:03:19,711 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:03:19,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:03:19,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:03:19,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:03:19,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:03:18" (1/4) ... [2022-01-11 00:03:19,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572c7a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:19, skipping insertion in model container [2022-01-11 00:03:19,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:03:18" (2/4) ... [2022-01-11 00:03:19,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572c7a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:03:19, skipping insertion in model container [2022-01-11 00:03:19,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:03:19" (3/4) ... [2022-01-11 00:03:19,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572c7a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:19, skipping insertion in model container [2022-01-11 00:03:19,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:03:19" (4/4) ... [2022-01-11 00:03:19,729 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.cTransformedIcfg [2022-01-11 00:03:19,732 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:03:19,732 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 00:03:19,836 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:03:19,846 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 00:03:19,846 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 00:03:19,880 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 159 states have (on average 1.389937106918239) internal successors, (221), 162 states have internal predecessors, (221), 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 00:03:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-11 00:03:19,885 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:19,885 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 00:03:19,886 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 00:03:19,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:19,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1543580994, now seen corresponding path program 1 times [2022-01-11 00:03:19,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:19,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443458399] [2022-01-11 00:03:19,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:19,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:20,125 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 00:03:20,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:20,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443458399] [2022-01-11 00:03:20,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443458399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:20,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:20,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:20,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945607344] [2022-01-11 00:03:20,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:20,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 00:03:20,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:20,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 00:03:20,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:03:20,157 INFO L87 Difference]: Start difference. First operand has 163 states, 159 states have (on average 1.389937106918239) internal successors, (221), 162 states have internal predecessors, (221), 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 00:03:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:20,203 INFO L93 Difference]: Finished difference Result 316 states and 431 transitions. [2022-01-11 00:03:20,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 00:03:20,206 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 00:03:20,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:20,218 INFO L225 Difference]: With dead ends: 316 [2022-01-11 00:03:20,218 INFO L226 Difference]: Without dead ends: 153 [2022-01-11 00:03:20,221 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 00:03:20,225 INFO L933 BasicCegarLoop]: 211 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, 211 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 00:03:20,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:20,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-01-11 00:03:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2022-01-11 00:03:20,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 150 states have (on average 1.3533333333333333) internal successors, (203), 152 states have internal predecessors, (203), 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 00:03:20,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 203 transitions. [2022-01-11 00:03:20,269 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 203 transitions. Word has length 17 [2022-01-11 00:03:20,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:20,269 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 203 transitions. [2022-01-11 00:03:20,269 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 00:03:20,270 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 203 transitions. [2022-01-11 00:03:20,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-11 00:03:20,271 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:20,271 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 00:03:20,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:03:20,271 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 00:03:20,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:20,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1213237755, now seen corresponding path program 1 times [2022-01-11 00:03:20,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:20,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285788453] [2022-01-11 00:03:20,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:20,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:20,359 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 00:03:20,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:20,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285788453] [2022-01-11 00:03:20,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285788453] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:20,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:20,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:20,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162292625] [2022-01-11 00:03:20,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:20,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:20,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:20,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:20,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:20,364 INFO L87 Difference]: Start difference. First operand 153 states and 203 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 00:03:20,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:20,410 INFO L93 Difference]: Finished difference Result 360 states and 480 transitions. [2022-01-11 00:03:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:20,411 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 00:03:20,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:20,412 INFO L225 Difference]: With dead ends: 360 [2022-01-11 00:03:20,412 INFO L226 Difference]: Without dead ends: 214 [2022-01-11 00:03:20,412 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 00:03:20,413 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 187 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:20,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 285 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-01-11 00:03:20,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 205. [2022-01-11 00:03:20,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 202 states have (on average 1.3564356435643565) internal successors, (274), 204 states have internal predecessors, (274), 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 00:03:20,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 274 transitions. [2022-01-11 00:03:20,424 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 274 transitions. Word has length 18 [2022-01-11 00:03:20,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:20,424 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 274 transitions. [2022-01-11 00:03:20,424 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 00:03:20,424 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 274 transitions. [2022-01-11 00:03:20,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-11 00:03:20,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:20,425 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] [2022-01-11 00:03:20,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:03:20,425 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 00:03:20,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:20,426 INFO L85 PathProgramCache]: Analyzing trace with hash 870967895, now seen corresponding path program 1 times [2022-01-11 00:03:20,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:20,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701717116] [2022-01-11 00:03:20,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:20,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:20,475 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 00:03:20,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:20,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701717116] [2022-01-11 00:03:20,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701717116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:20,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:20,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:20,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895228750] [2022-01-11 00:03:20,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:20,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:20,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:20,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:20,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:20,477 INFO L87 Difference]: Start difference. First operand 205 states and 274 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 00:03:20,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:20,529 INFO L93 Difference]: Finished difference Result 459 states and 611 transitions. [2022-01-11 00:03:20,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:20,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2022-01-11 00:03:20,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:20,530 INFO L225 Difference]: With dead ends: 459 [2022-01-11 00:03:20,530 INFO L226 Difference]: Without dead ends: 261 [2022-01-11 00:03:20,531 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 00:03:20,532 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 134 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:20,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 299 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:20,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-01-11 00:03:20,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 255. [2022-01-11 00:03:20,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 252 states have (on average 1.3015873015873016) internal successors, (328), 254 states have internal predecessors, (328), 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 00:03:20,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 328 transitions. [2022-01-11 00:03:20,544 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 328 transitions. Word has length 23 [2022-01-11 00:03:20,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:20,544 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 328 transitions. [2022-01-11 00:03:20,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 00:03:20,545 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 328 transitions. [2022-01-11 00:03:20,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-11 00:03:20,545 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:20,545 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 00:03:20,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:03:20,546 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 00:03:20,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:20,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1128277082, now seen corresponding path program 1 times [2022-01-11 00:03:20,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:20,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869169106] [2022-01-11 00:03:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:20,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:20,598 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 00:03:20,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:20,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869169106] [2022-01-11 00:03:20,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869169106] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:20,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:20,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:20,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169296738] [2022-01-11 00:03:20,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:20,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:20,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:20,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:20,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:20,600 INFO L87 Difference]: Start difference. First operand 255 states and 328 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 00:03:20,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:20,755 INFO L93 Difference]: Finished difference Result 1116 states and 1442 transitions. [2022-01-11 00:03:20,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 00:03:20,755 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 00:03:20,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:20,758 INFO L225 Difference]: With dead ends: 1116 [2022-01-11 00:03:20,758 INFO L226 Difference]: Without dead ends: 726 [2022-01-11 00:03:20,759 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 00:03:20,760 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 741 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 970 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 00:03:20,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 970 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:20,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2022-01-11 00:03:20,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 356. [2022-01-11 00:03:20,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 353 states have (on average 1.2946175637393769) internal successors, (457), 355 states have internal predecessors, (457), 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 00:03:20,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 457 transitions. [2022-01-11 00:03:20,782 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 457 transitions. Word has length 28 [2022-01-11 00:03:20,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:20,782 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 457 transitions. [2022-01-11 00:03:20,782 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 00:03:20,782 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 457 transitions. [2022-01-11 00:03:20,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-11 00:03:20,783 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:20,783 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] [2022-01-11 00:03:20,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:03:20,783 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:20,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:20,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1727941869, now seen corresponding path program 1 times [2022-01-11 00:03:20,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:20,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185789930] [2022-01-11 00:03:20,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:20,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:20,835 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 00:03:20,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:20,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185789930] [2022-01-11 00:03:20,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185789930] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:20,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:20,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:20,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283595507] [2022-01-11 00:03:20,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:20,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:20,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:20,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:20,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:20,837 INFO L87 Difference]: Start difference. First operand 356 states and 457 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 00:03:21,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:21,015 INFO L93 Difference]: Finished difference Result 1035 states and 1319 transitions. [2022-01-11 00:03:21,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:03:21,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2022-01-11 00:03:21,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:21,019 INFO L225 Difference]: With dead ends: 1035 [2022-01-11 00:03:21,019 INFO L226 Difference]: Without dead ends: 1029 [2022-01-11 00:03:21,019 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 00:03:21,020 INFO L933 BasicCegarLoop]: 467 mSDtfsCounter, 680 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:21,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 1415 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:21,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-01-11 00:03:21,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 356. [2022-01-11 00:03:21,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 353 states have (on average 1.2776203966005666) internal successors, (451), 355 states have internal predecessors, (451), 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 00:03:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 451 transitions. [2022-01-11 00:03:21,057 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 451 transitions. Word has length 30 [2022-01-11 00:03:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:21,057 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 451 transitions. [2022-01-11 00:03:21,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 00:03:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 451 transitions. [2022-01-11 00:03:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 00:03:21,058 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:21,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:21,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:03:21,058 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:21,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:21,059 INFO L85 PathProgramCache]: Analyzing trace with hash -982610482, now seen corresponding path program 1 times [2022-01-11 00:03:21,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:21,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627673248] [2022-01-11 00:03:21,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:21,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:21,099 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 00:03:21,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:21,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627673248] [2022-01-11 00:03:21,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627673248] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:21,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:21,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:03:21,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778377346] [2022-01-11 00:03:21,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:21,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:03:21,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:21,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:03:21,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:03:21,101 INFO L87 Difference]: Start difference. First operand 356 states and 451 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:21,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:21,213 INFO L93 Difference]: Finished difference Result 1045 states and 1311 transitions. [2022-01-11 00:03:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 00:03:21,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-11 00:03:21,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:21,215 INFO L225 Difference]: With dead ends: 1045 [2022-01-11 00:03:21,215 INFO L226 Difference]: Without dead ends: 696 [2022-01-11 00:03:21,216 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 00:03:21,217 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 350 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:21,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 914 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:03:21,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-01-11 00:03:21,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 380. [2022-01-11 00:03:21,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 377 states have (on average 1.259946949602122) internal successors, (475), 379 states have internal predecessors, (475), 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 00:03:21,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 475 transitions. [2022-01-11 00:03:21,243 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 475 transitions. Word has length 37 [2022-01-11 00:03:21,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:21,244 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 475 transitions. [2022-01-11 00:03:21,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:21,244 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 475 transitions. [2022-01-11 00:03:21,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 00:03:21,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:21,245 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:21,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:03:21,245 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 00:03:21,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:21,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1276013489, now seen corresponding path program 1 times [2022-01-11 00:03:21,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:21,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126275831] [2022-01-11 00:03:21,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:21,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:21,274 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 00:03:21,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:21,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126275831] [2022-01-11 00:03:21,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126275831] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:21,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:21,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:03:21,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791489662] [2022-01-11 00:03:21,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:21,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:03:21,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:21,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:03:21,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:03:21,276 INFO L87 Difference]: Start difference. First operand 380 states and 475 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:21,397 INFO L93 Difference]: Finished difference Result 1129 states and 1395 transitions. [2022-01-11 00:03:21,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:03:21,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-11 00:03:21,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:21,400 INFO L225 Difference]: With dead ends: 1129 [2022-01-11 00:03:21,400 INFO L226 Difference]: Without dead ends: 756 [2022-01-11 00:03:21,401 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 00:03:21,401 INFO L933 BasicCegarLoop]: 256 mSDtfsCounter, 312 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:21,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 670 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:21,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2022-01-11 00:03:21,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 396. [2022-01-11 00:03:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 393 states have (on average 1.2493638676844783) internal successors, (491), 395 states have internal predecessors, (491), 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 00:03:21,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 491 transitions. [2022-01-11 00:03:21,432 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 491 transitions. Word has length 37 [2022-01-11 00:03:21,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:21,432 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 491 transitions. [2022-01-11 00:03:21,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:21,433 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 491 transitions. [2022-01-11 00:03:21,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-11 00:03:21,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:21,435 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:21,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:03:21,435 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 00:03:21,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:21,436 INFO L85 PathProgramCache]: Analyzing trace with hash 231538320, now seen corresponding path program 1 times [2022-01-11 00:03:21,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:21,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565705257] [2022-01-11 00:03:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:21,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:03:21,538 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 00:03:21,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:03:21,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565705257] [2022-01-11 00:03:21,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565705257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:03:21,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:03:21,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:03:21,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850734610] [2022-01-11 00:03:21,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:03:21,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:03:21,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:03:21,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:03:21,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:03:21,540 INFO L87 Difference]: Start difference. First operand 396 states and 491 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:21,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:03:21,629 INFO L93 Difference]: Finished difference Result 965 states and 1193 transitions. [2022-01-11 00:03:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:03:21,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-01-11 00:03:21,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:03:21,632 INFO L225 Difference]: With dead ends: 965 [2022-01-11 00:03:21,632 INFO L226 Difference]: Without dead ends: 508 [2022-01-11 00:03:21,633 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 00:03:21,634 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 77 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:03:21,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 363 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:03:21,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-01-11 00:03:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2022-01-11 00:03:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 505 states have (on average 1.2376237623762376) internal successors, (625), 507 states have internal predecessors, (625), 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 00:03:21,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 625 transitions. [2022-01-11 00:03:21,684 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 625 transitions. Word has length 37 [2022-01-11 00:03:21,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:03:21,684 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 625 transitions. [2022-01-11 00:03:21,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:03:21,685 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 625 transitions. [2022-01-11 00:03:21,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-01-11 00:03:21,686 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:03:21,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:21,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 00:03:21,686 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 00:03:21,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:03:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1140473110, now seen corresponding path program 1 times [2022-01-11 00:03:21,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:03:21,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811782766] [2022-01-11 00:03:21,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:03:21,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:03:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:21,721 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-11 00:03:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-11 00:03:21,765 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-11 00:03:21,766 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-11 00:03:21,766 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-11 00:03:21,768 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-11 00:03:21,768 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-11 00:03:21,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 00:03:21,770 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:03:21,772 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-11 00:03:21,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:03:21 BasicIcfg [2022-01-11 00:03:21,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-11 00:03:21,851 INFO L158 Benchmark]: Toolchain (without parser) took 3514.98ms. Allocated memory was 127.9MB in the beginning and 185.6MB in the end (delta: 57.7MB). Free memory was 76.6MB in the beginning and 112.1MB in the end (delta: -35.5MB). Peak memory consumption was 22.7MB. Max. memory is 8.0GB. [2022-01-11 00:03:21,851 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 127.9MB. Free memory was 94.0MB in the beginning and 93.9MB in the end (delta: 78.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-11 00:03:21,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.52ms. Allocated memory was 127.9MB in the beginning and 154.1MB in the end (delta: 26.2MB). Free memory was 76.4MB in the beginning and 113.5MB in the end (delta: -37.1MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. [2022-01-11 00:03:21,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.59ms. Allocated memory is still 154.1MB. Free memory was 113.5MB in the beginning and 110.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-01-11 00:03:21,852 INFO L158 Benchmark]: Boogie Preprocessor took 54.63ms. Allocated memory is still 154.1MB. Free memory was 110.1MB in the beginning and 107.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-11 00:03:21,852 INFO L158 Benchmark]: RCFGBuilder took 567.69ms. Allocated memory is still 154.1MB. Free memory was 107.7MB in the beginning and 85.2MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-01-11 00:03:21,852 INFO L158 Benchmark]: IcfgTransformer took 121.09ms. Allocated memory is still 154.1MB. Free memory was 85.2MB in the beginning and 123.8MB in the end (delta: -38.6MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. [2022-01-11 00:03:21,853 INFO L158 Benchmark]: TraceAbstraction took 2138.40ms. Allocated memory was 154.1MB in the beginning and 185.6MB in the end (delta: 31.5MB). Free memory was 123.3MB in the beginning and 112.1MB in the end (delta: 11.2MB). Peak memory consumption was 42.7MB. Max. memory is 8.0GB. [2022-01-11 00:03:21,855 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 127.9MB. Free memory was 94.0MB in the beginning and 93.9MB in the end (delta: 78.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 559.52ms. Allocated memory was 127.9MB in the beginning and 154.1MB in the end (delta: 26.2MB). Free memory was 76.4MB in the beginning and 113.5MB in the end (delta: -37.1MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 67.59ms. Allocated memory is still 154.1MB. Free memory was 113.5MB in the beginning and 110.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 54.63ms. Allocated memory is still 154.1MB. Free memory was 110.1MB in the beginning and 107.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 567.69ms. Allocated memory is still 154.1MB. Free memory was 107.7MB in the beginning and 85.2MB in the end (delta: 22.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * IcfgTransformer took 121.09ms. Allocated memory is still 154.1MB. Free memory was 85.2MB in the beginning and 123.8MB in the end (delta: -38.6MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. * TraceAbstraction took 2138.40ms. Allocated memory was 154.1MB in the beginning and 185.6MB in the end (delta: 31.5MB). Free memory was 123.3MB in the beginning and 112.1MB in the end (delta: 11.2MB). Peak memory consumption was 42.7MB. 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: 449]: 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; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L627] int pumpRunning = 0; [L628] int systemActive = 1; [L858] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L931] int retValue_acc ; [L932] int tmp ; [L936] FCALL select_helpers() [L937] FCALL select_features() [L938] CALL, EXPR valid_product() [L849] int retValue_acc ; [L852] retValue_acc = 1 [L853] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L938] RET, EXPR valid_product() [L938] tmp = valid_product() [L940] COND TRUE \read(tmp) [L942] FCALL setup() [L943] CALL runTest() [L925] CALL test() [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L567] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L569] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L575] tmp = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp) [L579] CALL waterRise() [L478] COND TRUE waterLevel < 2 [L479] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L579] RET waterRise() [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___0) [L589] CALL changeMethaneLevel() [L490] COND FALSE !(\read(methaneLevelCritical)) [L493] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L589] RET changeMethaneLevel() [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L612] CALL timeShift() [L634] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L641] COND TRUE \read(systemActive) [L643] CALL processEnvironment() [L689] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L692] COND FALSE !(\read(pumpRunning)) [L707] CALL processEnvironment__wrappee__highWaterSensor() [L663] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE ! pumpRunning [L668] CALL, EXPR isHighWaterLevel() [L786] int retValue_acc ; [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isHighWaterSensorDry() [L540] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L543] COND FALSE !(waterLevel < 2) [L547] retValue_acc = 0 [L548] return (retValue_acc); VAL [\result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L792] RET, EXPR isHighWaterSensorDry() [L792] tmp = isHighWaterSensorDry() [L794] COND FALSE !(\read(tmp)) [L797] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L799] retValue_acc = tmp___0 [L800] 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] [L668] RET, EXPR isHighWaterLevel() [L668] tmp = isHighWaterLevel() [L670] COND TRUE \read(tmp) [L672] CALL activatePump() [L717] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] RET activatePump() [L707] RET processEnvironment__wrappee__highWaterSensor() [L643] RET processEnvironment() [L649] CALL __utac_acc__Specification1_spec__1() [L420] int tmp ; [L421] int tmp___0 ; [L425] CALL, EXPR isMethaneLevelCritical() [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L425] RET, EXPR isMethaneLevelCritical() [L425] tmp = isMethaneLevelCritical() [L427] COND TRUE \read(tmp) [L429] CALL, EXPR isPumpRunning() [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); VAL [\result=-1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L429] RET, EXPR isPumpRunning() [L429] tmp___0 = isPumpRunning() [L431] COND TRUE \read(tmp___0) [L433] CALL __automaton_fail() [L449] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 449]: 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: 449]: 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, 163 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2481 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2481 mSDsluCounter, 5127 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3093 mSDsCounter, 127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 127 mSolverCounterUnsat, 2034 mSDtfsCounter, 412 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=508occurred in iteration=8, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1734 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 641 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 00:03:21,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...