/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_spec3_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 06:33:54,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 06:33:54,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 06:33:54,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 06:33:54,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 06:33:54,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 06:33:54,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 06:33:54,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 06:33:54,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 06:33:54,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 06:33:54,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 06:33:54,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 06:33:54,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 06:33:54,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 06:33:54,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 06:33:54,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 06:33:54,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 06:33:54,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 06:33:54,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 06:33:54,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 06:33:54,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 06:33:54,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 06:33:54,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 06:33:54,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 06:33:54,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 06:33:54,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 06:33:54,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 06:33:54,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 06:33:54,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 06:33:54,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 06:33:54,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 06:33:54,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 06:33:54,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 06:33:54,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 06:33:54,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 06:33:54,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 06:33:54,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 06:33:54,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 06:33:54,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 06:33:54,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 06:33:54,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 06:33:54,718 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 06:33:54,734 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 06:33:54,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 06:33:54,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 06:33:54,735 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 06:33:54,735 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 06:33:54,735 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 06:33:54,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 06:33:54,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 06:33:54,736 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 06:33:54,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 06:33:54,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 06:33:54,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 06:33:54,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 06:33:54,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 06:33:54,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:33:54,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 06:33:54,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 06:33:54,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 06:33:54,738 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 06:33:54,738 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 06:33:54,738 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 06:33:54,738 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 06:33:54,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 06:33:54,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 06:33:54,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 06:33:54,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 06:33:54,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 06:33:54,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 06:33:54,942 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 06:33:54,946 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 06:33:54,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2022-01-10 06:33:55,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a7a64705/318f22b9724f406886eca0b4b14d385c/FLAG369ece781 [2022-01-10 06:33:55,364 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 06:33:55,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2022-01-10 06:33:55,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a7a64705/318f22b9724f406886eca0b4b14d385c/FLAG369ece781 [2022-01-10 06:33:55,382 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a7a64705/318f22b9724f406886eca0b4b14d385c [2022-01-10 06:33:55,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 06:33:55,387 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 06:33:55,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 06:33:55,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 06:33:55,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 06:33:55,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73008c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55, skipping insertion in model container [2022-01-10 06:33:55,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 06:33:55,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:33:55,561 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_spec3_product43.cil.c[2897,2910] [2022-01-10 06:33:55,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:33:55,646 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 06:33:55,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 06:33:55,655 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_spec3_product43.cil.c[2897,2910] [2022-01-10 06:33:55,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:33:55,708 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 06:33:55,718 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_spec3_product43.cil.c[2897,2910] [2022-01-10 06:33:55,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 06:33:55,775 INFO L208 MainTranslator]: Completed translation [2022-01-10 06:33:55,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55 WrapperNode [2022-01-10 06:33:55,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 06:33:55,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 06:33:55,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 06:33:55,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 06:33:55,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,832 INFO L137 Inliner]: procedures = 56, calls = 154, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 241 [2022-01-10 06:33:55,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 06:33:55,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 06:33:55,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 06:33:55,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 06:33:55,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 06:33:55,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 06:33:55,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 06:33:55,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 06:33:55,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (1/1) ... [2022-01-10 06:33:55,884 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 06:33:55,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 06:33:55,902 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 06:33:55,915 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 06:33:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 06:33:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-01-10 06:33:55,929 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-01-10 06:33:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-01-10 06:33:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-01-10 06:33:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-01-10 06:33:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-01-10 06:33:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-01-10 06:33:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-01-10 06:33:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-01-10 06:33:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-01-10 06:33:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 06:33:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-01-10 06:33:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-01-10 06:33:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 06:33:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 06:33:55,998 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 06:33:56,000 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 06:33:56,266 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 06:33:56,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 06:33:56,270 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 06:33:56,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:33:56 BoogieIcfgContainer [2022-01-10 06:33:56,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 06:33:56,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 06:33:56,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 06:33:56,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 06:33:56,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:33:55" (1/3) ... [2022-01-10 06:33:56,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7a5138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:33:56, skipping insertion in model container [2022-01-10 06:33:56,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:33:55" (2/3) ... [2022-01-10 06:33:56,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7a5138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:33:56, skipping insertion in model container [2022-01-10 06:33:56,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:33:56" (3/3) ... [2022-01-10 06:33:56,277 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2022-01-10 06:33:56,280 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 06:33:56,280 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 06:33:56,310 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 06:33:56,315 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 06:33:56,315 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 06:33:56,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 73 states have internal predecessors, (93), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-01-10 06:33:56,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-01-10 06:33:56,335 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:33:56,335 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:33:56,336 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:33:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:33:56,339 INFO L85 PathProgramCache]: Analyzing trace with hash 35803391, now seen corresponding path program 1 times [2022-01-10 06:33:56,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:33:56,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322663819] [2022-01-10 06:33:56,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:33:56,348 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:33:56,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:33:56,376 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 06:33:56,377 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 06:33:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:33:56,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 06:33:56,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:33:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 06:33:56,545 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:33:56,545 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:33:56,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322663819] [2022-01-10 06:33:56,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322663819] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:33:56,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:33:56,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:33:56,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763357758] [2022-01-10 06:33:56,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:33:56,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 06:33:56,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:33:56,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 06:33:56,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 06:33:56,572 INFO L87 Difference]: Start difference. First operand has 85 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 73 states have internal predecessors, (93), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:33:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:33:56,592 INFO L93 Difference]: Finished difference Result 162 states and 221 transitions. [2022-01-10 06:33:56,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 06:33:56,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-01-10 06:33:56,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:33:56,599 INFO L225 Difference]: With dead ends: 162 [2022-01-10 06:33:56,599 INFO L226 Difference]: Without dead ends: 76 [2022-01-10 06:33:56,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 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 06:33:56,604 INFO L933 BasicCegarLoop]: 107 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, 107 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 06:33:56,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:33:56,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-01-10 06:33:56,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-01-10 06:33:56,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 65 states have internal predecessors, (79), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-01-10 06:33:56,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2022-01-10 06:33:56,632 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 25 [2022-01-10 06:33:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:33:56,632 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2022-01-10 06:33:56,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:33:56,633 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2022-01-10 06:33:56,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 06:33:56,634 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:33:56,634 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 06:33:56,641 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 06:33:56,841 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 06:33:56,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:33:56,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:33:56,842 INFO L85 PathProgramCache]: Analyzing trace with hash 667483741, now seen corresponding path program 1 times [2022-01-10 06:33:56,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:33:56,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962288842] [2022-01-10 06:33:56,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:33:56,843 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:33:56,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:33:56,844 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 06:33:56,846 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 06:33:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:33:56,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:33:56,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:33:56,973 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 06:33:56,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:33:56,974 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:33:56,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962288842] [2022-01-10 06:33:56,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962288842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:33:56,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:33:56,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 06:33:56,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690496191] [2022-01-10 06:33:56,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:33:56,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:33:56,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:33:56,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:33:56,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:33:56,976 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:33:56,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:33:56,988 INFO L93 Difference]: Finished difference Result 114 states and 147 transitions. [2022-01-10 06:33:56,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:33:56,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-01-10 06:33:56,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:33:56,991 INFO L225 Difference]: With dead ends: 114 [2022-01-10 06:33:56,991 INFO L226 Difference]: Without dead ends: 67 [2022-01-10 06:33:56,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 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 06:33:56,992 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 17 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 149 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 06:33:56,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 149 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:33:56,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-01-10 06:33:56,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-01-10 06:33:56,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 59 states have internal predecessors, (72), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-10 06:33:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2022-01-10 06:33:56,998 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 26 [2022-01-10 06:33:56,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:33:56,999 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-01-10 06:33:56,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-01-10 06:33:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-01-10 06:33:56,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-10 06:33:57,000 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:33:57,000 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 06:33:57,008 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 06:33:57,202 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 06:33:57,202 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:33:57,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:33:57,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1089755984, now seen corresponding path program 1 times [2022-01-10 06:33:57,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:33:57,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919749932] [2022-01-10 06:33:57,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:33:57,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:33:57,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:33:57,205 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 06:33:57,206 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 06:33:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:33:57,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 06:33:57,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:33:57,322 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 06:33:57,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:33:57,323 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:33:57,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919749932] [2022-01-10 06:33:57,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [919749932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:33:57,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:33:57,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:33:57,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237021129] [2022-01-10 06:33:57,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:33:57,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:33:57,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:33:57,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:33:57,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:33:57,327 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 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 06:33:57,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:33:57,357 INFO L93 Difference]: Finished difference Result 186 states and 244 transitions. [2022-01-10 06:33:57,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:33:57,357 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), 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 06:33:57,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:33:57,358 INFO L225 Difference]: With dead ends: 186 [2022-01-10 06:33:57,358 INFO L226 Difference]: Without dead ends: 126 [2022-01-10 06:33:57,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 06:33:57,360 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 66 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:33:57,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 184 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:33:57,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-01-10 06:33:57,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 121. [2022-01-10 06:33:57,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 96 states have (on average 1.3541666666666667) internal successors, (130), 105 states have internal predecessors, (130), 14 states have call successors, (14), 10 states have call predecessors, (14), 10 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-01-10 06:33:57,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 158 transitions. [2022-01-10 06:33:57,372 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 158 transitions. Word has length 30 [2022-01-10 06:33:57,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:33:57,373 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 158 transitions. [2022-01-10 06:33:57,373 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), 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 06:33:57,373 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 158 transitions. [2022-01-10 06:33:57,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-10 06:33:57,374 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:33:57,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:33:57,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 06:33:57,582 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 06:33:57,583 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:33:57,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:33:57,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1322642641, now seen corresponding path program 1 times [2022-01-10 06:33:57,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:33:57,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278989600] [2022-01-10 06:33:57,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:33:57,584 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:33:57,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:33:57,585 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 06:33:57,587 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 06:33:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:33:57,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 06:33:57,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:33:57,713 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 06:33:57,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:33:57,714 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:33:57,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278989600] [2022-01-10 06:33:57,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278989600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:33:57,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:33:57,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 06:33:57,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300016372] [2022-01-10 06:33:57,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:33:57,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 06:33:57,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:33:57,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 06:33:57,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 06:33:57,720 INFO L87 Difference]: Start difference. First operand 121 states and 158 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:33:57,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:33:57,758 INFO L93 Difference]: Finished difference Result 316 states and 419 transitions. [2022-01-10 06:33:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 06:33:57,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-01-10 06:33:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:33:57,762 INFO L225 Difference]: With dead ends: 316 [2022-01-10 06:33:57,762 INFO L226 Difference]: Without dead ends: 202 [2022-01-10 06:33:57,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 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 06:33:57,772 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 59 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:33:57,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 140 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:33:57,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-01-10 06:33:57,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 200. [2022-01-10 06:33:57,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 157 states have (on average 1.3375796178343948) internal successors, (210), 170 states have internal predecessors, (210), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (26), 22 states have call predecessors, (26), 22 states have call successors, (26) [2022-01-10 06:33:57,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 258 transitions. [2022-01-10 06:33:57,809 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 258 transitions. Word has length 35 [2022-01-10 06:33:57,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:33:57,809 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 258 transitions. [2022-01-10 06:33:57,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-01-10 06:33:57,809 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 258 transitions. [2022-01-10 06:33:57,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-10 06:33:57,810 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:33:57,810 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:33:57,821 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 06:33:58,017 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 06:33:58,017 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:33:58,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:33:58,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1351645467, now seen corresponding path program 1 times [2022-01-10 06:33:58,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:33:58,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324636982] [2022-01-10 06:33:58,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:33:58,019 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:33:58,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:33:58,020 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 06:33:58,022 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 06:33:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 06:33:58,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-10 06:33:58,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 06:33:58,160 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 06:33:58,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 06:33:58,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 06:33:58,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324636982] [2022-01-10 06:33:58,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324636982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 06:33:58,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 06:33:58,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 06:33:58,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251897493] [2022-01-10 06:33:58,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 06:33:58,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 06:33:58,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 06:33:58,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 06:33:58,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 06:33:58,161 INFO L87 Difference]: Start difference. First operand 200 states and 258 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 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 06:33:58,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 06:33:58,207 INFO L93 Difference]: Finished difference Result 568 states and 760 transitions. [2022-01-10 06:33:58,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 06:33:58,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 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 34 [2022-01-10 06:33:58,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 06:33:58,209 INFO L225 Difference]: With dead ends: 568 [2022-01-10 06:33:58,209 INFO L226 Difference]: Without dead ends: 375 [2022-01-10 06:33:58,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 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 06:33:58,211 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 49 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 06:33:58,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 336 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 06:33:58,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2022-01-10 06:33:58,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 363. [2022-01-10 06:33:58,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 286 states have (on average 1.3041958041958042) internal successors, (373), 305 states have internal predecessors, (373), 42 states have call successors, (42), 38 states have call predecessors, (42), 34 states have return successors, (54), 38 states have call predecessors, (54), 42 states have call successors, (54) [2022-01-10 06:33:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 469 transitions. [2022-01-10 06:33:58,236 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 469 transitions. Word has length 34 [2022-01-10 06:33:58,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 06:33:58,236 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 469 transitions. [2022-01-10 06:33:58,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 1 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 06:33:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 469 transitions. [2022-01-10 06:33:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-01-10 06:33:58,238 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 06:33:58,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 06:33:58,246 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 06:33:58,446 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 06:33:58,447 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 06:33:58,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 06:33:58,448 INFO L85 PathProgramCache]: Analyzing trace with hash -259884917, now seen corresponding path program 1 times [2022-01-10 06:33:58,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 06:33:58,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [617144716] [2022-01-10 06:33:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 06:33:58,448 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 06:33:58,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 06:33:58,449 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 06:33:58,450 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 06:33:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 06:33:58,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-10 06:33:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-10 06:33:58,554 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-01-10 06:33:58,554 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-10 06:33:58,555 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 06:33:58,599 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 06:33:58,757 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 06:33:58,760 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-01-10 06:33:58,762 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 06:33:58,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:33:58 BoogieIcfgContainer [2022-01-10 06:33:58,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 06:33:58,795 INFO L158 Benchmark]: Toolchain (without parser) took 3408.61ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 153.9MB in the beginning and 190.3MB in the end (delta: -36.3MB). Peak memory consumption was 5.4MB. Max. memory is 8.0GB. [2022-01-10 06:33:58,795 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 205.5MB. Free memory was 171.7MB in the beginning and 171.6MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:33:58,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.71ms. Allocated memory is still 205.5MB. Free memory was 153.7MB in the beginning and 166.2MB in the end (delta: -12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-10 06:33:58,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.31ms. Allocated memory is still 205.5MB. Free memory was 166.2MB in the beginning and 164.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:33:58,796 INFO L158 Benchmark]: Boogie Preprocessor took 18.10ms. Allocated memory is still 205.5MB. Free memory was 164.1MB in the beginning and 162.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 06:33:58,796 INFO L158 Benchmark]: RCFGBuilder took 420.50ms. Allocated memory is still 205.5MB. Free memory was 162.0MB in the beginning and 144.7MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-01-10 06:33:58,796 INFO L158 Benchmark]: TraceAbstraction took 2521.93ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 144.2MB in the beginning and 190.3MB in the end (delta: -46.1MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 06:33:58,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 205.5MB. Free memory was 171.7MB in the beginning and 171.6MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 387.71ms. Allocated memory is still 205.5MB. Free memory was 153.7MB in the beginning and 166.2MB in the end (delta: -12.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.31ms. Allocated memory is still 205.5MB. Free memory was 166.2MB in the beginning and 164.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.10ms. Allocated memory is still 205.5MB. Free memory was 164.1MB in the beginning and 162.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 420.50ms. Allocated memory is still 205.5MB. Free memory was 162.0MB in the beginning and 144.7MB in the end (delta: 17.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 2521.93ms. Allocated memory was 205.5MB in the beginning and 247.5MB in the end (delta: 41.9MB). Free memory was 144.2MB in the beginning and 190.3MB in the end (delta: -46.1MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 158]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L369] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L607] int pumpRunning = 0; [L608] int systemActive = 1; [L859] int waterLevel = 1; [L860] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L802] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L804] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L810] tmp = __VERIFIER_nondet_int() [L812] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2147483648, waterLevel=1] [L814] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L877] COND TRUE waterLevel < 2 [L878] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L814] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2147483648, waterLevel=2] [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=2147483648, tmp___0=0, waterLevel=2] [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND FALSE !(\read(tmp___2)) [L836] tmp___1 = __VERIFIER_nondet_int() [L838] COND TRUE \read(tmp___1) [L840] CALL stopSystem() [L780] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L787] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L840] RET stopSystem() [L847] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L614] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L621] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L629] CALL __utac_acc__Specification3_spec__1() [L167] int tmp ; [L168] int tmp___0 ; [L169] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L898] int retValue_acc ; [L901] retValue_acc = methaneLevelCritical [L902] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L173] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] tmp = isMethaneLevelCritical() [L175] COND FALSE !(\read(tmp)) [L179] CALL, EXPR getWaterLevel() [L930] int retValue_acc ; [L933] retValue_acc = waterLevel [L934] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L179] RET, EXPR getWaterLevel() [L179] tmp___0 = getWaterLevel() [L181] COND TRUE tmp___0 == 2 [L183] CALL, EXPR isPumpRunning() [L713] int retValue_acc ; [L716] retValue_acc = pumpRunning [L717] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L183] RET, EXPR isPumpRunning() [L183] tmp___1 = isPumpRunning() [L185] COND FALSE !(\read(tmp___1)) [L189] CALL __automaton_fail() [L158] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 916 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 440 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 476 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=363occurred in iteration=5, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 279 SizeOfPredicates, 6 NumberOfNonLiveVariables, 786 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-01-10 06:33:58,824 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...