/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:34:16,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:34:16,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:34:16,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:34:16,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:34:16,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:34:16,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:34:16,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:34:16,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:34:16,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:34:16,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:34:16,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:34:16,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:34:16,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:34:16,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:34:16,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:34:16,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:34:16,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:34:16,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:34:16,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:34:16,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:34:16,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:34:16,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:34:16,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:34:16,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:34:16,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:34:16,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:34:16,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:34:16,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:34:16,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:34:16,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:34:16,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:34:16,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:34:16,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:34:16,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:34:16,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:34:16,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:34:16,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:34:16,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:34:16,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:34:16,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:34:16,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 06:34:16,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:34:16,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:34:16,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:34:16,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:34:16,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:34:16,943 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:34:16,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:34:16,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:34:16,949 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:34:16,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:34:16,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:34:16,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:34:16,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:34:16,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:34:16,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:34:16,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:34:16,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:34:16,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:34:16,951 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:34:16,952 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:34:16,952 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:34:16,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:34:16,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:34:16,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:34:16,952 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:34:17,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:34:17,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:34:17,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:34:17,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:34:17,169 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:34:17,171 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product02.cil.c [2022-01-10 06:34:17,232 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2557b85df/e4efb97b95624287be361e99f838d71e/FLAG1684e3963 [2022-01-10 06:34:17,716 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:34:17,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product02.cil.c [2022-01-10 06:34:17,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2557b85df/e4efb97b95624287be361e99f838d71e/FLAG1684e3963 [2022-01-10 06:34:18,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2557b85df/e4efb97b95624287be361e99f838d71e [2022-01-10 06:34:18,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:34:18,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:34:18,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:18,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:34:18,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:34:18,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a9f5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18, skipping insertion in model container [2022-01-10 06:34:18,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:34:18,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:18,397 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_spec4_product02.cil.c[1605,1618] [2022-01-10 06:34:18,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:18,541 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:34:18,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:34:18,549 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_spec4_product02.cil.c[1605,1618] [2022-01-10 06:34:18,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:18,612 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:34:18,627 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_spec4_product02.cil.c[1605,1618] [2022-01-10 06:34:18,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:34:18,691 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:34:18,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18 WrapperNode [2022-01-10 06:34:18,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:34:18,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:18,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:34:18,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:34:18,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,734 INFO L137 Inliner]: procedures = 52, calls = 145, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 182 [2022-01-10 06:34:18,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:34:18,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:34:18,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:34:18,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:34:18,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:34:18,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:34:18,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:34:18,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:34:18,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (1/1) ... [2022-01-10 06:34:18,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:34:18,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:34:18,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 06:34:18,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 06:34:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:34:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-01-10 06:34:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-01-10 06:34:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-01-10 06:34:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-01-10 06:34:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-01-10 06:34:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-01-10 06:34:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:34:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-01-10 06:34:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-01-10 06:34:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:34:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:34:19,026 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:34:19,027 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:34:19,235 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:34:19,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:34:19,242 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 06:34:19,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:19 BoogieIcfgContainer [2022-01-10 06:34:19,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:34:19,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:34:19,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:34:19,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:34:19,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:34:18" (1/3) ... [2022-01-10 06:34:19,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784955e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:19, skipping insertion in model container [2022-01-10 06:34:19,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:34:18" (2/3) ... [2022-01-10 06:34:19,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784955e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:34:19, skipping insertion in model container [2022-01-10 06:34:19,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:34:19" (3/3) ... [2022-01-10 06:34:19,251 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product02.cil.c [2022-01-10 06:34:19,255 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:34:19,256 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:34:19,305 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:34:19,312 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 06:34:19,313 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:34:19,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 51 states have internal predecessors, (66), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-10 06:34:19,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-10 06:34:19,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:19,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:34:19,344 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:19,350 INFO L85 PathProgramCache]: Analyzing trace with hash -2112614328, now seen corresponding path program 1 times [2022-01-10 06:34:19,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:19,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90455824] [2022-01-10 06:34:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:19,362 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:19,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:19,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:19,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 06:34:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:19,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:34:19,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:19,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:19,538 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:19,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90455824] [2022-01-10 06:34:19,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90455824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:19,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:19,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:19,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713583090] [2022-01-10 06:34:19,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:19,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:34:19,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:19,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:34:19,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:34:19,571 INFO L87 Difference]: Start difference. First operand has 59 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 51 states have internal predecessors, (66), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:19,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:19,594 INFO L93 Difference]: Finished difference Result 110 states and 151 transitions. [2022-01-10 06:34:19,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:34:19,596 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-01-10 06:34:19,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:19,604 INFO L225 Difference]: With dead ends: 110 [2022-01-10 06:34:19,604 INFO L226 Difference]: Without dead ends: 50 [2022-01-10 06:34:19,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:34:19,610 INFO L933 BasicCegarLoop]: 72 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, 72 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 [2022-01-10 06:34:19,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:19,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-01-10 06:34:19,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-01-10 06:34:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 40 states have (on average 1.3) internal successors, (52), 43 states have internal predecessors, (52), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-10 06:34:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2022-01-10 06:34:19,646 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 19 [2022-01-10 06:34:19,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:19,647 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2022-01-10 06:34:19,648 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2022-01-10 06:34:19,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 06:34:19,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:19,650 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] [2022-01-10 06:34:19,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 06:34:19,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:19,857 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:19,857 INFO L85 PathProgramCache]: Analyzing trace with hash 67396636, now seen corresponding path program 1 times [2022-01-10 06:34:19,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:19,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928446449] [2022-01-10 06:34:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:19,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:19,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:19,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:19,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 06:34:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:19,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:19,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:19,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:19,984 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:19,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1928446449] [2022-01-10 06:34:19,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1928446449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:19,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:19,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:34:19,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676493564] [2022-01-10 06:34:19,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:19,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:19,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:19,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:19,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:19,990 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:20,000 INFO L93 Difference]: Finished difference Result 65 states and 81 transitions. [2022-01-10 06:34:20,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:20,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-01-10 06:34:20,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:20,001 INFO L225 Difference]: With dead ends: 65 [2022-01-10 06:34:20,002 INFO L226 Difference]: Without dead ends: 41 [2022-01-10 06:34:20,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:20,003 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 13 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:20,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:20,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-01-10 06:34:20,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-01-10 06:34:20,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 37 states have internal predecessors, (45), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:34:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2022-01-10 06:34:20,009 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 20 [2022-01-10 06:34:20,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:20,010 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2022-01-10 06:34:20,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,010 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2022-01-10 06:34:20,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 06:34:20,011 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:20,011 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] [2022-01-10 06:34:20,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:20,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,212 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:20,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:20,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1748531166, now seen corresponding path program 1 times [2022-01-10 06:34:20,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:20,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300467054] [2022-01-10 06:34:20,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:20,214 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:20,225 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:20,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 06:34:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:20,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:20,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:20,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:20,331 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:20,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300467054] [2022-01-10 06:34:20,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300467054] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:20,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:20,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:34:20,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263025162] [2022-01-10 06:34:20,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:20,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:20,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:20,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:20,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:20,333 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:20,371 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2022-01-10 06:34:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:20,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-01-10 06:34:20,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:20,373 INFO L225 Difference]: With dead ends: 75 [2022-01-10 06:34:20,373 INFO L226 Difference]: Without dead ends: 41 [2022-01-10 06:34:20,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:20,374 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 45 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:20,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 49 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:20,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-01-10 06:34:20,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-01-10 06:34:20,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 37 states have internal predecessors, (44), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-01-10 06:34:20,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2022-01-10 06:34:20,378 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 25 [2022-01-10 06:34:20,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:20,379 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2022-01-10 06:34:20,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,379 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2022-01-10 06:34:20,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 06:34:20,380 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:20,380 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] [2022-01-10 06:34:20,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-01-10 06:34:20,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,591 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:20,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:20,592 INFO L85 PathProgramCache]: Analyzing trace with hash 673445797, now seen corresponding path program 1 times [2022-01-10 06:34:20,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:20,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658608902] [2022-01-10 06:34:20,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:20,593 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:20,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:20,594 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:20,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 06:34:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:20,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:34:20,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:20,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:20,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:20,744 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:20,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658608902] [2022-01-10 06:34:20,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658608902] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:20,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:20,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:34:20,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584744725] [2022-01-10 06:34:20,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:20,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:34:20,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:20,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:34:20,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:34:20,746 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:20,789 INFO L93 Difference]: Finished difference Result 102 states and 133 transitions. [2022-01-10 06:34:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:34:20,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-10 06:34:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:20,792 INFO L225 Difference]: With dead ends: 102 [2022-01-10 06:34:20,793 INFO L226 Difference]: Without dead ends: 68 [2022-01-10 06:34:20,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 06:34:20,794 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 24 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:20,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 184 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:20,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-01-10 06:34:20,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-01-10 06:34:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 60 states have internal predecessors, (72), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (7), 5 states have call predecessors, (7), 6 states have call successors, (7) [2022-01-10 06:34:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 85 transitions. [2022-01-10 06:34:20,805 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 85 transitions. Word has length 26 [2022-01-10 06:34:20,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:20,806 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 85 transitions. [2022-01-10 06:34:20,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:20,806 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2022-01-10 06:34:20,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 06:34:20,807 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:20,807 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] [2022-01-10 06:34:20,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:21,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,016 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:21,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:21,017 INFO L85 PathProgramCache]: Analyzing trace with hash 122478752, now seen corresponding path program 1 times [2022-01-10 06:34:21,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:21,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617307161] [2022-01-10 06:34:21,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:21,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:21,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:21,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 06:34:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:21,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:34:21,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:21,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:21,149 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:21,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [617307161] [2022-01-10 06:34:21,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [617307161] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:21,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:21,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:34:21,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382452792] [2022-01-10 06:34:21,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:21,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:34:21,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:21,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:34:21,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:21,151 INFO L87 Difference]: Start difference. First operand 68 states and 85 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:21,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:21,158 INFO L93 Difference]: Finished difference Result 100 states and 126 transitions. [2022-01-10 06:34:21,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:34:21,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-01-10 06:34:21,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:21,159 INFO L225 Difference]: With dead ends: 100 [2022-01-10 06:34:21,159 INFO L226 Difference]: Without dead ends: 65 [2022-01-10 06:34:21,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:34:21,160 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:21,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 44 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:34:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-01-10 06:34:21,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-01-10 06:34:21,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 57 states have internal predecessors, (66), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-10 06:34:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 78 transitions. [2022-01-10 06:34:21,168 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 78 transitions. Word has length 28 [2022-01-10 06:34:21,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:21,168 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 78 transitions. [2022-01-10 06:34:21,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:21,168 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 78 transitions. [2022-01-10 06:34:21,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 06:34:21,169 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:34:21,169 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] [2022-01-10 06:34:21,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:21,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,378 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:34:21,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:34:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash -970164469, now seen corresponding path program 1 times [2022-01-10 06:34:21,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:34:21,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368051115] [2022-01-10 06:34:21,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:34:21,379 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:34:21,396 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 06:34:21,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 06:34:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:34:21,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 06:34:21,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:34:21,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:34:21,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:34:21,616 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:34:21,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368051115] [2022-01-10 06:34:21,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368051115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:34:21,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:34:21,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 06:34:21,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504240592] [2022-01-10 06:34:21,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:34:21,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 06:34:21,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:34:21,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 06:34:21,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-10 06:34:21,617 INFO L87 Difference]: Start difference. First operand 65 states and 78 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:34:21,760 INFO L93 Difference]: Finished difference Result 95 states and 116 transitions. [2022-01-10 06:34:21,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 06:34:21,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-01-10 06:34:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:34:21,761 INFO L225 Difference]: With dead ends: 95 [2022-01-10 06:34:21,761 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 06:34:21,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-01-10 06:34:21,763 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 77 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 06:34:21,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 294 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 06:34:21,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 06:34:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 06:34:21,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 06:34:21,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 06:34:21,764 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-01-10 06:34:21,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:34:21,764 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 06:34:21,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:34:21,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 06:34:21,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 06:34:21,766 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:34:21,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 06:34:21,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 06:34:21,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 06:34:22,333 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 319 330) the Hoare annotation is: true [2022-01-10 06:34:22,333 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 319 330) no Hoare annotation was computed. [2022-01-10 06:34:22,333 INFO L858 garLoopResultBuilder]: For program point L323-1(lines 319 330) no Hoare annotation was computed. [2022-01-10 06:34:22,333 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 766 795) no Hoare annotation was computed. [2022-01-10 06:34:22,334 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 766 795) the Hoare annotation is: true [2022-01-10 06:34:22,334 INFO L861 garLoopResultBuilder]: At program point L791(lines 766 795) the Hoare annotation is: true [2022-01-10 06:34:22,334 INFO L858 garLoopResultBuilder]: For program point L787(line 787) no Hoare annotation was computed. [2022-01-10 06:34:22,334 INFO L858 garLoopResultBuilder]: For program point L780(lines 780 784) no Hoare annotation was computed. [2022-01-10 06:34:22,334 INFO L861 garLoopResultBuilder]: At program point L780-1(lines 780 784) the Hoare annotation is: true [2022-01-10 06:34:22,334 INFO L858 garLoopResultBuilder]: For program point L777(line 777) no Hoare annotation was computed. [2022-01-10 06:34:22,334 INFO L861 garLoopResultBuilder]: At program point L776-2(lines 776 790) the Hoare annotation is: true [2022-01-10 06:34:22,334 INFO L861 garLoopResultBuilder]: At program point L772(line 772) the Hoare annotation is: true [2022-01-10 06:34:22,334 INFO L858 garLoopResultBuilder]: For program point L772-1(line 772) no Hoare annotation was computed. [2022-01-10 06:34:22,334 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-01-10 06:34:22,334 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 113 132) no Hoare annotation was computed. [2022-01-10 06:34:22,335 INFO L854 garLoopResultBuilder]: At program point L368(lines 363 371) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (and (= |timeShift_getWaterLevel_#res#1| (_ bv1 32)) .cse2) (not (= (_ bv1 32) |old(~waterLevel~0)|))) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) .cse2)))) [2022-01-10 06:34:22,335 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 110 133) no Hoare annotation was computed. [2022-01-10 06:34:22,335 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 391) no Hoare annotation was computed. [2022-01-10 06:34:22,335 INFO L858 garLoopResultBuilder]: For program point L381(lines 381 394) no Hoare annotation was computed. [2022-01-10 06:34:22,335 INFO L854 garLoopResultBuilder]: At program point L381-1(lines 373 397) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| (_ bv1 32)) (= |timeShift_getWaterLevel_#res#1| (_ bv1 32)) .cse2)) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 (and (= |timeShift_getWaterLevel_#res#1| (_ bv2 32)) (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| (_ bv2 32)) .cse2)))) [2022-01-10 06:34:22,335 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 121 127) no Hoare annotation was computed. [2022-01-10 06:34:22,335 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))) (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:22,335 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 110 133) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse2) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 .cse2))) [2022-01-10 06:34:22,335 INFO L854 garLoopResultBuilder]: At program point L173(lines 168 176) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))) (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:22,336 INFO L858 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2022-01-10 06:34:22,336 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 110 133) no Hoare annotation was computed. [2022-01-10 06:34:22,336 INFO L854 garLoopResultBuilder]: At program point L138(lines 134 140) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse2) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 .cse2))) [2022-01-10 06:34:22,336 INFO L854 garLoopResultBuilder]: At program point L299-2(lines 295 306) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32))))) (and (or .cse0 .cse1 (not (= (bvadd (_ bv4294967295 32) |old(~waterLevel~0)|) (_ bv1 32)))) (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|))))) [2022-01-10 06:34:22,336 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-01-10 06:34:22,336 INFO L854 garLoopResultBuilder]: At program point L283(lines 234 284) the Hoare annotation is: false [2022-01-10 06:34:22,336 INFO L854 garLoopResultBuilder]: At program point L824(lines 820 826) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:22,336 INFO L854 garLoopResultBuilder]: At program point L77(lines 73 79) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:22,336 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 06:34:22,336 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 261) no Hoare annotation was computed. [2022-01-10 06:34:22,336 INFO L858 garLoopResultBuilder]: For program point L255-1(lines 255 261) no Hoare annotation was computed. [2022-01-10 06:34:22,337 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 06:34:22,337 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 06:34:22,337 INFO L854 garLoopResultBuilder]: At program point L218(lines 213 220) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:34:22,337 INFO L854 garLoopResultBuilder]: At program point L280(lines 235 282) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:34:22,337 INFO L854 garLoopResultBuilder]: At program point L247(line 247) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:34:22,337 INFO L861 garLoopResultBuilder]: At program point L834(lines 827 836) the Hoare annotation is: true [2022-01-10 06:34:22,337 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 06:34:22,337 INFO L858 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2022-01-10 06:34:22,337 INFO L858 garLoopResultBuilder]: For program point L847(lines 847 854) no Hoare annotation was computed. [2022-01-10 06:34:22,337 INFO L854 garLoopResultBuilder]: At program point L273-2(lines 265 278) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:34:22,337 INFO L858 garLoopResultBuilder]: For program point L847-2(lines 847 854) no Hoare annotation was computed. [2022-01-10 06:34:22,337 INFO L858 garLoopResultBuilder]: For program point L236(lines 235 282) no Hoare annotation was computed. [2022-01-10 06:34:22,337 INFO L858 garLoopResultBuilder]: For program point L265(lines 265 278) no Hoare annotation was computed. [2022-01-10 06:34:22,338 INFO L854 garLoopResultBuilder]: At program point L257(line 257) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 (_ bv1 32))) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv1 32)) .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1 .cse2))) [2022-01-10 06:34:22,338 INFO L861 garLoopResultBuilder]: At program point L286(lines 225 290) the Hoare annotation is: true [2022-01-10 06:34:22,338 INFO L854 garLoopResultBuilder]: At program point L92(lines 87 95) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:22,338 INFO L861 garLoopResultBuilder]: At program point L856(lines 837 859) the Hoare annotation is: true [2022-01-10 06:34:22,338 INFO L858 garLoopResultBuilder]: For program point L245(lines 245 251) no Hoare annotation was computed. [2022-01-10 06:34:22,338 INFO L854 garLoopResultBuilder]: At program point L84(lines 80 86) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2022-01-10 06:34:22,338 INFO L858 garLoopResultBuilder]: For program point L245-1(lines 245 251) no Hoare annotation was computed. [2022-01-10 06:34:22,338 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 241) no Hoare annotation was computed. [2022-01-10 06:34:22,338 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 307 318) no Hoare annotation was computed. [2022-01-10 06:34:22,338 INFO L858 garLoopResultBuilder]: For program point L311-1(lines 307 318) no Hoare annotation was computed. [2022-01-10 06:34:22,338 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 307 318) the Hoare annotation is: (let ((.cse0 (not (= (_ bv0 32) ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 (_ bv1 32)))) (.cse2 (= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 (not (= (_ bv1 32) |old(~waterLevel~0)|)) .cse2) (or (not (= (_ bv2 32) |old(~waterLevel~0)|)) .cse0 .cse1 .cse2))) [2022-01-10 06:34:22,341 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-10 06:34:22,342 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:34:22,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:34:22 BoogieIcfgContainer [2022-01-10 06:34:22,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:34:22,354 INFO L158 Benchmark]: Toolchain (without parser) took 4146.23ms. Allocated memory was 185.6MB in the beginning and 291.5MB in the end (delta: 105.9MB). Free memory was 128.7MB in the beginning and 103.9MB in the end (delta: 24.9MB). Peak memory consumption was 130.6MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,354 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 185.6MB. Free memory was 146.0MB in the beginning and 145.9MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:34:22,354 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.58ms. Allocated memory was 185.6MB in the beginning and 291.5MB in the end (delta: 105.9MB). Free memory was 128.6MB in the beginning and 250.1MB in the end (delta: -121.4MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.50ms. Allocated memory is still 291.5MB. Free memory was 250.1MB in the beginning and 248.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,354 INFO L158 Benchmark]: Boogie Preprocessor took 22.96ms. Allocated memory is still 291.5MB. Free memory was 248.0MB in the beginning and 245.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,355 INFO L158 Benchmark]: RCFGBuilder took 482.06ms. Allocated memory is still 291.5MB. Free memory was 245.9MB in the beginning and 230.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,355 INFO L158 Benchmark]: TraceAbstraction took 3108.19ms. Allocated memory is still 291.5MB. Free memory was 229.7MB in the beginning and 103.9MB in the end (delta: 125.8MB). Peak memory consumption was 125.8MB. Max. memory is 8.0GB. [2022-01-10 06:34:22,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 185.6MB. Free memory was 146.0MB in the beginning and 145.9MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 483.58ms. Allocated memory was 185.6MB in the beginning and 291.5MB in the end (delta: 105.9MB). Free memory was 128.6MB in the beginning and 250.1MB in the end (delta: -121.4MB). Peak memory consumption was 7.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.50ms. Allocated memory is still 291.5MB. Free memory was 250.1MB in the beginning and 248.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.96ms. Allocated memory is still 291.5MB. Free memory was 248.0MB in the beginning and 245.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 482.06ms. Allocated memory is still 291.5MB. Free memory was 245.9MB in the beginning and 230.2MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3108.19ms. Allocated memory is still 291.5MB. Free memory was 229.7MB in the beginning and 103.9MB in the end (delta: 125.8MB). Peak memory consumption was 125.8MB. 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 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 193 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 726 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 402 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 324 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 114 PreInvPairs, 134 NumberOfFragments, 469 HoareAnnotationTreeSize, 114 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 166 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 308 SizeOfPredicates, 9 NumberOfNonLiveVariables, 874 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: ((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || !(~bvadd16(4294967295bv32, \old(waterLevel)) == 1bv32)) && ((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || !(1bv32 == \old(waterLevel))) || waterLevel == \old(waterLevel)) && (((!(2bv32 == \old(waterLevel)) || !(0bv32 == pumpRunning)) || !(systemActive == 1bv32)) || waterLevel == \old(waterLevel)) - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: (((~bvadd16(waterLevel, 4294967295bv32) == 1bv32 && systemActive == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) || (((systemActive == 1bv32 && waterLevel == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 766]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 363]: Loop Invariant Derived loop invariant: (((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || (\result == 1bv32 && waterLevel == \old(waterLevel))) || !(1bv32 == \old(waterLevel))) && (((!(2bv32 == \old(waterLevel)) || !(0bv32 == pumpRunning)) || !(systemActive == 1bv32)) || (\result == 2bv32 && waterLevel == \old(waterLevel))) - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: (((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || !(1bv32 == \old(waterLevel))) || ((tmp == 1bv32 && \result == 1bv32) && waterLevel == \old(waterLevel))) && (((!(2bv32 == \old(waterLevel)) || !(0bv32 == pumpRunning)) || !(systemActive == 1bv32)) || ((\result == 2bv32 && tmp == 2bv32) && waterLevel == \old(waterLevel))) - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: (((~bvadd16(waterLevel, 4294967295bv32) == 1bv32 && systemActive == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) || (((systemActive == 1bv32 && waterLevel == 1bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || !(~bvadd16(4294967295bv32, \old(waterLevel)) == 1bv32)) && ((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: ((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || !(~bvadd16(4294967295bv32, \old(waterLevel)) == 1bv32)) && ((!(0bv32 == pumpRunning) || !(systemActive == 1bv32)) || !(1bv32 == \old(waterLevel))) - InvariantResult [Line: 820]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 225]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-10 06:34:22,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...